{
  "$schema": "https://govschema.org/spec/v0.3/govschema.schema.json",
  "govschemaVersion": "0.3.0",
  "id": "fi/prh/start-up-notification-y1",
  "version": "1.0.0",
  "title": "Finland Start-up Notification (Y1) — Limited Companies, Co-operatives, Foundations and Other Organisations",
  "description": "The Finnish Patent and Registration Office's (Patentti- ja rekisterihallitus, PRH) and Finnish Tax Administration's (Vero) jointly published form Y1, \"Perustamisilmoitus\" (\"Start-up notification\"), used to register a limited company, co-operative, foundation, or other organisation (branch of a foreign enterprise, foreign company, mutual insurance company, or several other listed forms) with the Trade Register or Register of Foundations, and simultaneously with the VAT Register, Prepayment Register, Employer Register, and register of payers of tax on insurance premiums. The form itself notes that limited companies must actually be set up using PRH/Vero's online filing service at ytj.fi and that co-operatives must attach this PDF to that same online form, so this specimen's primary real-world filer is a foundation or other organisation type using the paper/postal route, though its structure and fields apply identically across all covered legal forms. This document describes the form only; it does not submit anything, and does not imply Finnish government endorsement.",
  "status": "draft",
  "jurisdiction": {
    "country": "FI",
    "level": "national"
  },
  "authority": {
    "name": "Patentti- ja rekisterihallitus (Finnish Patent and Registration Office)",
    "abbreviation": "PRH",
    "url": "https://www.prh.fi"
  },
  "process": {
    "type": "registration",
    "language": "en"
  },
  "source": {
    "url": "https://www.prh.fi/material/sites/ytj/attachments/saavutettavat-y-lomakkeet/en/rqkm38u88/Y1-form.pdf",
    "retrievedAt": "2026-07-11",
    "documentRef": "Y1, \"Start-up notification\" (Perustamisilmoitus), YTJ 1001e 1.2026 — PRH's own English-language fillable AcroForm PDF"
  },
  "verification": {
    "method": "manual-source-review-v1",
    "lastVerifiedAt": "2026-07-11",
    "verifiedBy": "GovSchema Engineering (Standards Engineer)",
    "nextReviewBy": "2027-01-11",
    "notes": "GOV-2292 \"GovSchema Standard Research\" cycle. Opens Finland's Business Formation vertical (34th jurisdiction, 2 of 6 verticals; Visa already modelled via GOV-2276/fi/migri/residence-permit-employed-person). A prior cycle's own CATALOG.md update had already flagged PRH/YTJ form Y1 as a confirmed-strong, unscreened Business Formation candidate after a three-way Nordic scouting pass; this cycle picked it up directly. Fetched fresh from prh.fi with a plain HTTP GET: HTTP 200, 287,294 bytes, genuine %PDF-1.7, 4 pages, no login/CAPTCHA/WAF gate, footer edition \"YTJ 1001e 1.2026\". A pdfjs-dist extraction resolved 110 raw /Widget annotations (56 Tx text, 54 Btn checkboxes), of which 8 are page-navigation/utility controls (Reset form, three \"next page\" buttons, three \"first page\" buttons, Print) excluded as non-data-collecting UI chrome, leaving 102 substantive widgets. This specimen's own AcroForm field names are self-documenting English label text (unlike this registry's fi/migri precedent, which required Finnish-name-to-English-label decoding via coordinate cross-reference) -- getTextContent() clustering was used only to confirm section boundaries and disambiguate two disclosed quirks (see below), not to decode field identity. Every one of the 102 substantive widgets was mapped to exactly one fields[]/documents[] entry via a disposable reconciliation script asserting zero unmapped and zero double-mapped widgets: 102/102 accounted for, consolidating (5-digit TOL industry code split across 5 widgets into one pattern-constrained string field; 2 independent company-name-language checkboxes into one enum; 2 independent \"requesting registration in\" checkboxes into one enum; 7 independent \"type of enterprise\" checkboxes into one enum; 3 independent turnover-bracket checkboxes into one enum; 3 independent VAT-tax-period-length checkboxes into one enum; 2 independent employer-contributions-tax-period-length checkboxes into one enum) to 78 fields[] entries, plus 7 \"Enclosures\" appendix-form checkboxes modelled as documents[] entries per this registry's established supporting-document-checklist convention (5 of 7 gated requiredWhen against legalEntityType; the remaining 2 name legal forms with no corresponding legalEntityType enum value on the specimen's own \"Type of enterprise\" checkbox group -- a gap in the source form's own two lists, disclosed rather than papered over with an invented enum value). Two disclosed quirks: (1) the \"requesting registration in\" checkboxes' underlying field names read as boilerplate copied from an unrelated amendment-notification template (\"The amended details are for ...\"), inconsistent with the specimen's own visible \"Requesting registration in\" printed text -- modelled by the visible label, mismatch disclosed rather than silently followed; (2) a separately fetched English-language filling-instructions PDF describes a \"page 3\" English-company-language confirmation checkbox with no counterpart anywhere in this specimen's 102 widgets (confirmed absent by a case-insensitive name search) -- treated as describing a different edition, not incorporated. The specimen's own \"postal or street address is mandatory\" either/or requirement is resolved editorially (postalAddress modelled required:true, streetAddress optional), disclosed since v0.3 crossFieldValidation has no \"at least one of\" primitive. Two mock conformance scenarios (a foundation registration exercising only the 8 statically-required fields plus its one conditional document; a limited company continuing a previous sole trader's business with VAT/employer/prepayment registration and a non-VAT rental-income disclosure, exercising every requiredWhen-gated field and document) were run against a from-scratch interpreter script walking fields[]/documents[]/crossFieldValidation[] directly: 0 errors on both, plus 5 independent mutation controls (a dropped required field; a required document removed from the documents[] list entirely, not just marked unprovided -- confirming the documents[] path is genuinely exercised; a reversed date-ordering crossFieldValidation rule; two conditionally-required fields each omitted while their gating condition is true) each correctly raised exactly 1 error. The same script also confirmed every visibleWhen/requiredWhen/crossFieldValidation field reference resolves (0 dangling references). Validated clean with node tools/validate.mjs and node tools/validate-ajv.mjs, individually and as part of the full registry run."
  },
  "maturity": {
    "level": "structural-reference",
    "criteria": {
      "structuralReference": true,
      "verifiedSchema": false,
      "agentReadySchema": false,
      "executionTestedSchema": false
    },
    "method": "maturity-self-assessment-v1",
    "assertedBy": "GovSchema Engineering (Standards Engineer)",
    "assertedAt": "2026-07-11"
  },
  "license": "CC-BY-4.0",
  "fields": [
    {
      "name": "companyName",
      "label": "Company Name",
      "type": "string",
      "required": true,
      "description": "The proposed name of the company or organisation. Treated as a suggested name only until the Trade Register has approved it.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Company Name (treated as a suggested name until the Trade Register has approved it)\""
    },
    {
      "name": "companyLanguage",
      "label": "Language",
      "type": "enum",
      "required": true,
      "description": "The company name's registered language, printed as two independent checkboxes (Finnish/Swedish) beside the company name field. Determines which language the Trade Register/Tax Administration correspondence is issued in.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Language ☐ Finnish ☐ Swedish\"",
      "validation": {
        "enum": [
          "finnish",
          "swedish"
        ]
      }
    },
    {
      "name": "alternativeCompanyName2",
      "label": "Alternative Company Name 2",
      "type": "string",
      "required": false,
      "description": "A second alternative company name, in case the first choice is rejected by the Trade Register.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Alternative Company Name 2\""
    },
    {
      "name": "alternativeCompanyName3",
      "label": "Alternative Company Name 3",
      "type": "string",
      "required": false,
      "description": "A third alternative company name, in case the first two choices are rejected by the Trade Register.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Alternative Company Name 3\""
    },
    {
      "name": "registrationRegister",
      "label": "Requesting registration in",
      "type": "enum",
      "required": true,
      "description": "Which register the notification requests entry into. The Trade Register option requires enclosing a receipt proving the registration fee was paid; the Register of Foundations has no fee. This form's two checkbox labels are printed as \"The Trade Register (enclose receipt proving you paid the fee)\" and \"Register of Foundations\", though their underlying AcroForm field names are copy-pasted from an unrelated amendment-notification template (\"The amended details are for ...\") — a disclosed tooltip artifact, not a structural fact about this notification.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Requesting registration in (complete pp. 3-4 to give details to the Tax Administration) ☐ The Trade Register (enclose receipt proving you paid the fee) ☐ Register of Foundations\"",
      "validation": {
        "enum": [
          "trade_register",
          "register_of_foundations"
        ]
      }
    },
    {
      "name": "acceleratedProcessingRequested",
      "label": "Accelerated processing requested",
      "type": "boolean",
      "required": false,
      "description": "Whether the applicant is requesting registration by a desired date (Trade Register only). Requires a separate letter enclosed stating the reason; requests cannot always be granted.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Tick this box if you are asking for registration by a desired date. Note: enclose a separate letter to give your reasons for this.\""
    },
    {
      "name": "homeMunicipality",
      "label": "Home municipality (in Finland)",
      "type": "string",
      "required": false,
      "description": "The company's domicile municipality within Finland.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4, \"Domicile\": \"Home municipality (in Finland)\""
    },
    {
      "name": "countryOfResidence",
      "label": "Country of residence (if not Finland)",
      "type": "string",
      "required": false,
      "description": "The country of domicile, only if not Finland (e.g. a foreign branch/company registering in Finland).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4, \"Domicile\": \"Country of residence (if not Finland)\""
    },
    {
      "name": "parallelCompanyNames",
      "label": "Parallel company names",
      "type": "string",
      "required": false,
      "description": "Translations of the company name into foreign languages, for a company already entered in the PRH registers under a Finnish or Swedish name.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4, \"Other company names, if any (fill in if needed)\": \"Parallel company names (translations of the company name into foreign languages)\""
    },
    {
      "name": "auxiliaryCompanyName1",
      "label": "Auxiliary company name 1",
      "type": "string",
      "required": false,
      "description": "A first auxiliary (toiminimi) trade name the company also operates under.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Auxiliary company name\""
    },
    {
      "name": "auxiliaryCompanyName1ActivityDescription",
      "label": "Description of activities under auxiliary company name 1",
      "type": "string",
      "required": false,
      "description": "The line of business conducted under auxiliary company name 1.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Description of activities under this auxiliary company name\""
    },
    {
      "name": "auxiliaryCompanyName2",
      "label": "Auxiliary company name 2",
      "type": "string",
      "required": false,
      "description": "A second auxiliary (toiminimi) trade name the company also operates under.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Auxiliary company name\" (second row)"
    },
    {
      "name": "auxiliaryCompanyName2ActivityDescription",
      "label": "Description of activities under auxiliary company name 2",
      "type": "string",
      "required": false,
      "description": "The line of business conducted under auxiliary company name 2.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Description of activities under this auxiliary company name\" (second row)"
    },
    {
      "name": "postalAddressCareOf",
      "label": "c/o (postal address)",
      "type": "string",
      "required": false,
      "description": "Care-of line for the postal (mailing) address, part of the \"Address information for public use\" block.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"c/o (postal address)\""
    },
    {
      "name": "postalAddress",
      "label": "Postal address (street or road)",
      "type": "string",
      "required": true,
      "description": "The company's public postal (mailing) address. The form states either a postal or a street address is mandatory; this schema models the postal address as the primary required field since it is printed first and can carry a PO Box.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4, \"Address information for public use (postal or street address is mandatory)\": \"Postal address (street or road)\""
    },
    {
      "name": "postalAddressBuildingNumber",
      "label": "Building number",
      "type": "string",
      "required": false,
      "description": "Building number for the postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Building no\""
    },
    {
      "name": "postalAddressEntranceNumber",
      "label": "Entrance number",
      "type": "string",
      "required": false,
      "description": "Entrance (stairwell) number for the postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Entrance no\""
    },
    {
      "name": "postalAddressApartmentNumber",
      "label": "Apartment number",
      "type": "string",
      "required": false,
      "description": "Apartment number for the postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Apartment no\""
    },
    {
      "name": "postalAddressPoBoxNumber",
      "label": "PO Box number",
      "type": "string",
      "required": false,
      "description": "PO Box number, if the postal address uses one instead of a street address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"PO Box no\""
    },
    {
      "name": "postalAddressPostalCode",
      "label": "Postal code",
      "type": "string",
      "required": true,
      "description": "Postal code for the postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Postal code\""
    },
    {
      "name": "postalAddressTownOrCity",
      "label": "Town or city",
      "type": "string",
      "required": true,
      "description": "Town or city for the postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Town or City\""
    },
    {
      "name": "streetAddressCareOf",
      "label": "c/o (street address)",
      "type": "string",
      "required": false,
      "description": "Care-of line for the street (visiting) address, if given as an alternative or in addition to the postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"c/o (street address)\""
    },
    {
      "name": "streetAddress",
      "label": "Street address (street or road)",
      "type": "string",
      "required": false,
      "description": "The company's public street (visiting) address, printed as a second address block with no PO Box option. The form states either a postal or a street address is mandatory; see postalAddress.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Street address (street or road)\""
    },
    {
      "name": "streetAddressBuildingNumber",
      "label": "Building number for street address",
      "type": "string",
      "required": false,
      "description": "Building number for the street address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Building no\" (street address block)"
    },
    {
      "name": "streetAddressEntranceNumber",
      "label": "Entrance number for street address",
      "type": "string",
      "required": false,
      "description": "Entrance (stairwell) number for the street address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Entrance no\" (street address block)"
    },
    {
      "name": "streetAddressApartmentNumber",
      "label": "Apartment number for street address",
      "type": "string",
      "required": false,
      "description": "Apartment number for the street address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Apartment no\" (street address block)"
    },
    {
      "name": "streetAddressPostalCode",
      "label": "Postal code for street address",
      "type": "string",
      "required": false,
      "description": "Postal code for the street address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Postal code\" (street address block)"
    },
    {
      "name": "streetAddressTownOrCity",
      "label": "Town or city for street address",
      "type": "string",
      "required": false,
      "description": "Town or city for the street address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Town or City\" (street address block)"
    },
    {
      "name": "email",
      "label": "E-mail",
      "type": "string",
      "required": false,
      "description": "The company's e-mail address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"e-mail\""
    },
    {
      "name": "telephone",
      "label": "Telephone",
      "type": "string",
      "required": false,
      "description": "The company's telephone number.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Telephone\""
    },
    {
      "name": "website",
      "label": "Website",
      "type": "string",
      "required": false,
      "description": "The company's website address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Website\""
    },
    {
      "name": "establishmentDate",
      "label": "Date of establishment or start date of business in Finland",
      "type": "date",
      "required": true,
      "description": "The date the company was established, or (for a foreign company) the date it started business in Finland. The accounting period begins on this date.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"Date of establishment or start date of business in Finland (dd.mm.yyyy)\""
    },
    {
      "name": "firstAccountingPeriodEndDate",
      "label": "End date of the first accounting period",
      "type": "date",
      "required": true,
      "description": "End date of the company's first accounting period, maximum 18 months from establishmentDate. The next accounting period (one year) starts automatically after the first.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 1/4: \"End date of the first accounting period (max. 18 months) (dd.mm.yyyy)\""
    },
    {
      "name": "continuesPreviousBusiness",
      "label": "Continues the trade or business of a previous company",
      "type": "boolean",
      "required": false,
      "description": "Whether the company is to continue the trade or business of a previous company (e.g. a private trader becoming a limited partnership). If true, a Personal Data Form must also be completed (out of scope of this schema; see the document's own VERIFICATION.md).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"The company is to continue the trade or business of the previous company (e.g. a private trader becomes a limited partnership), see instructions. Complete the Personal Data Form.\""
    },
    {
      "name": "previousCompanyName",
      "label": "Name of the previous company",
      "type": "string",
      "required": false,
      "description": "Name of the previous company whose trade or business this company continues.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"Name of the previous company\"",
      "requiredWhen": {
        "field": "continuesPreviousBusiness",
        "equals": true
      }
    },
    {
      "name": "previousCompanyBusinessId",
      "label": "Business ID of the previous company",
      "type": "string",
      "required": false,
      "description": "The previous company's Finnish Business ID (Y-tunnus).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"Business ID\"",
      "requiredWhen": {
        "field": "continuesPreviousBusiness",
        "equals": true
      }
    },
    {
      "name": "mainSectorTolCode",
      "label": "Main sector (line of business), five-digit TOL code",
      "type": "string",
      "required": true,
      "description": "The main line of business declared to the Tax Administration, as a five-digit Statistics Finland TOL (Toimialaluokitus) industry classification code. The source specimen prints this as five separate single-digit boxes; this schema combines them into one field, per this registry's established split-widget consolidation convention.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"Main sector (line of business) to be declared to Tax Administration (five-digit TOL code. For more information, visit website of Statistics Finland.)\"",
      "validation": {
        "pattern": "^[0-9]{5}$"
      }
    },
    {
      "name": "legalEntityType",
      "label": "Type of enterprise",
      "type": "enum",
      "required": true,
      "description": "The legal entity form being registered. The source specimen instructs: \"Please complete the mandatory appendix form applicable to your enterprise\" — see this document's documents[] entries for the corresponding appendix-form requirements.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4, \"Type of enterprise (Please complete the mandatory appendix form applicable to your enterprise)\": \"☐ Limited company (private limited company) ☐ Public limited company ☐ Foundation ☐ Branch of a foreign enterprise ☐ Co-operative ☐ Foreign company ☐ Other type\"",
      "validation": {
        "enum": [
          "limited_company",
          "public_limited_company",
          "foundation",
          "branch_of_foreign_enterprise",
          "co_operative",
          "foreign_company",
          "other"
        ]
      }
    },
    {
      "name": "legalEntityTypeOtherText",
      "label": "Other type, please specify",
      "type": "string",
      "required": false,
      "description": "Free-text description of the legal entity type, when \"Other type\" is selected.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"Other type, please specify\"",
      "requiredWhen": {
        "field": "legalEntityType",
        "equals": "other"
      }
    },
    {
      "name": "contactPersonName",
      "label": "Name of person providing further information",
      "type": "string",
      "required": false,
      "description": "Name of the individual providing further information about the notification, if different from the signatory.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4, \"Name of contact person\": \"Name of person\""
    },
    {
      "name": "contactPersonCompanyOrOrganisation",
      "label": "Name of company or organisation of the contact person",
      "type": "string",
      "required": false,
      "description": "If the person providing further information works for a law firm, accounting firm, or other company/organisation on the notifier's behalf, its name.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"Name of company or organisation\""
    },
    {
      "name": "signatureDate",
      "label": "Date",
      "type": "date",
      "required": true,
      "description": "Date the notification is signed.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4, \"Date and signature\": \"Date\""
    },
    {
      "name": "signatureAndPrintedName",
      "label": "Signature and printed name",
      "type": "string",
      "required": true,
      "description": "The signatory prints and signs their name by hand; the form must be printed out for this. See the form filling instructions for signing rules (e.g. who may sign on behalf of each legal entity type).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"Signature and printed name\". \"Add the date and the printed name of the signer of the notification. Print out the form and sign it by hand.\""
    },
    {
      "name": "taxAdminPostalAddress",
      "label": "Postal address to the Tax Administration",
      "type": "string",
      "required": false,
      "description": "The company's postal address for the Tax Administration, only if different from the address given on page 1.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4, \"Information for the Tax Administration\": \"Postal address to be given to the Tax Administration use only (unless it is the same as on Page 1)\""
    },
    {
      "name": "taxAdminBuildingNumber",
      "label": "Building number (Tax Administration address)",
      "type": "string",
      "required": false,
      "description": "Building number for the Tax Administration postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Building no\""
    },
    {
      "name": "taxAdminEntranceNumber",
      "label": "Entrance number (Tax Administration address)",
      "type": "string",
      "required": false,
      "description": "Entrance number for the Tax Administration postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Entrance no\""
    },
    {
      "name": "taxAdminApartmentNumber",
      "label": "Apartment number (Tax Administration address)",
      "type": "string",
      "required": false,
      "description": "Apartment number for the Tax Administration postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Apartment no\""
    },
    {
      "name": "taxAdminPoBoxNumber",
      "label": "PO Box number (Tax Administration address)",
      "type": "string",
      "required": false,
      "description": "PO Box number for the Tax Administration postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"PO Box no\""
    },
    {
      "name": "taxAdminPostalCode",
      "label": "Postal code (Tax Administration address)",
      "type": "string",
      "required": false,
      "description": "Postal code for the Tax Administration postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Postal code\""
    },
    {
      "name": "taxAdminTownOrCity",
      "label": "Town or city (Tax Administration address)",
      "type": "string",
      "required": false,
      "description": "Town or city for the Tax Administration postal address.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Town or City\""
    },
    {
      "name": "vatRegistrationDate",
      "label": "Registration for VAT as of",
      "type": "date",
      "required": false,
      "description": "The date from which VAT registration is requested.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Registration for VAT as of (dd.mm.yyyy)\""
    },
    {
      "name": "vatBasisTradeOrBusiness",
      "label": "VAT basis: Trade or business",
      "type": "boolean",
      "required": false,
      "description": "One of five independent checkboxes stating the basis for the VAT registration request.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Trade or business\""
    },
    {
      "name": "vatBasisPurchasesWithdrawalGoodsOwnUse",
      "label": "VAT basis: Purchases; withdrawal of goods for own use",
      "type": "boolean",
      "required": false,
      "description": "Basis for the VAT registration request: purchases, or withdrawal of goods for own use.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Purchases; withdrawal of goods for own use\""
    },
    {
      "name": "vatBasisNotificationSalesServicesEu",
      "label": "VAT basis: Notification obligation for sales of services in the EU",
      "type": "boolean",
      "required": false,
      "description": "Basis for the VAT registration request: notification obligation for sales of services in the EU.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Notification obligation for sales of services in the EU\""
    },
    {
      "name": "vatBasisPrimaryProducer",
      "label": "VAT basis: Primary producer",
      "type": "boolean",
      "required": false,
      "description": "Basis for the VAT registration request: primary producer.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Primary producer\""
    },
    {
      "name": "vatBasisTransferRightsImmovableProperty",
      "label": "VAT basis: transfer of rights to use immovable property",
      "type": "boolean",
      "required": false,
      "description": "VAT taxpayer status is requested for the transfer of rights to use immovable property (under §12 and §30, VAT Act). Requires a rental contract or other account of the rental property and tenant to be enclosed.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"VAT taxpayer status is requested for the transfer of rights to use immovable property (under §12 and §30, VAT Act. Rental contract - or other account of the rental property and tenant - must be enclosed.)\""
    },
    {
      "name": "vatStatusRequestedDate",
      "label": "VAT taxpayer status is requested as of",
      "type": "date",
      "required": false,
      "description": "The date from which a special VAT taxpayer status (small-scale, intra-Community, primary producer, or non-profit/religious) is requested.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"VAT taxpayer status is requested as of (dd.mm.yyyy)\""
    },
    {
      "name": "vatStatusRequestedSmallScaleBusinessOperator",
      "label": "VAT status requested: Small-scale business operator",
      "type": "boolean",
      "required": false,
      "description": "VAT taxpayer status is requested as a small-scale business operator (§3, VAT Act, turnover threshold €20,000).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Small-scale business operator (§3, VAT Act, €20,000)\""
    },
    {
      "name": "vatStatusRequestedIntraCommunityAcquisitions",
      "label": "VAT status requested: for intra-Community acquisitions",
      "type": "boolean",
      "required": false,
      "description": "VAT taxpayer status is requested for intra-Community acquisitions (§26 f, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"For intra-Community acquisitions (§26 f, VAT Act)\""
    },
    {
      "name": "vatStatusRequestedPrimaryProducer",
      "label": "VAT status requested: as primary producer",
      "type": "boolean",
      "required": false,
      "description": "VAT taxpayer status is requested as a primary producer.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"VAT taxpayer status is requested as primary producer\""
    },
    {
      "name": "vatStatusRequestedNonProfitReligious",
      "label": "VAT status requested: non-profit/religious entity",
      "type": "boolean",
      "required": false,
      "description": "VAT taxpayer status is requested as a non-profit/religious entity (§12.1, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Non-profit/religious entity (§12.1, VAT Act)\""
    },
    {
      "name": "vatExclusionDate",
      "label": "Exclusion from VAT as of",
      "type": "date",
      "required": false,
      "description": "The date from which exclusion from VAT is requested. Requires a statement of the grounds to be attached.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Exclusion from VAT (please attach a statement of the grounds) as of (dd.mm.yyyy)\""
    },
    {
      "name": "vatExclusionJustificationSmallScale",
      "label": "VAT exclusion justification: small-scale operation",
      "type": "boolean",
      "required": false,
      "description": "Justification that the company does not consider itself liable for VAT: small-scale operation (§3, VAT Act, €20,000).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Justification that the company does not consider itself liable for VAT is Small-scale operation (§3, VAT Act, €20,000)\""
    },
    {
      "name": "vatExclusionJustificationHealthcare",
      "label": "VAT exclusion justification: healthcare services",
      "type": "boolean",
      "required": false,
      "description": "Justification: healthcare services (§34, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Healthcare services (§34, VAT Act)\""
    },
    {
      "name": "vatExclusionJustificationSocialServices",
      "label": "VAT exclusion justification: social services",
      "type": "boolean",
      "required": false,
      "description": "Justification: social services (§37, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Social services (§37, VAT Act)\""
    },
    {
      "name": "vatExclusionJustificationInstructorServices",
      "label": "VAT exclusion justification: instructor services",
      "type": "boolean",
      "required": false,
      "description": "Justification: instructor services (§39, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Instructor services (§39, VAT Act)\""
    },
    {
      "name": "vatExclusionJustificationFinancialInsurance",
      "label": "VAT exclusion justification: financial and insurance services",
      "type": "boolean",
      "required": false,
      "description": "Justification: financial and insurance services (§41, §44, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Financial and insurance (§41, §44, VAT Act)\""
    },
    {
      "name": "vatExclusionJustificationArtistRoyalties",
      "label": "VAT exclusion justification: fees to performing artist, royalties",
      "type": "boolean",
      "required": false,
      "description": "Justification: fees to performing artist, or royalties (§45, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Fees to performing artist, royalties (§45, VAT Act)\""
    },
    {
      "name": "vatExclusionJustificationRealPropertyRights",
      "label": "VAT exclusion justification: real property rights",
      "type": "boolean",
      "required": false,
      "description": "Justification: real property rights (§27, VAT Act).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Real property rights (§27, VAT Act)\""
    },
    {
      "name": "vatExclusionJustificationOtherApplicable",
      "label": "VAT exclusion justification: other non-VAT operations",
      "type": "boolean",
      "required": false,
      "description": "Justification: other non-VAT operations, with a free-text explanation in vatExclusionJustificationOtherText.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Other non-VAT operations\""
    },
    {
      "name": "vatExclusionJustificationOtherText",
      "label": "Other non-VAT operations, please specify",
      "type": "string",
      "required": false,
      "description": "Free-text explanation of the other non-VAT operations selected above.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Other non-VAT operations, please specify:\"",
      "requiredWhen": {
        "field": "vatExclusionJustificationOtherApplicable",
        "equals": true
      }
    },
    {
      "name": "vatExclusionJustificationNonProfitReligious45",
      "label": "VAT exclusion justification: non-profit/religious entity",
      "type": "boolean",
      "required": false,
      "description": "Justification: non-profit/religious entity (§4-5, VAT Act) — a distinct statutory basis from vatStatusRequestedNonProfitReligious (§12.1, VAT Act) above.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Non-profit/religious entity (§4-5, VAT Act)\""
    },
    {
      "name": "employerRegistrationDate",
      "label": "Registering as an employer paying wages on a regular basis as of",
      "type": "date",
      "required": false,
      "description": "The date from which the company registers as an employer paying wages on a regular basis.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"Registering as an employer paying wages on a regular basis as of (dd.mm.yyyy)\""
    },
    {
      "name": "prepaymentRegisterDate",
      "label": "Applying for entry in the Prepayment Register as of",
      "type": "date",
      "required": false,
      "description": "The date the company is applying for entry in the Prepayment Register (§25, Prepayment Act). The earliest possible date of registration is the date of arrival of the completed form.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4: \"The company applying for entry in the Prepayment Register (§25, Prepayment Act) as of (dd.mm.yyyy)\""
    },
    {
      "name": "turnoverBracket",
      "label": "Tax period of self-assessed taxes: annual turnover bracket",
      "type": "enum",
      "required": false,
      "description": "The company's expected annual turnover bracket, which determines the default length of the tax period for self-assessed taxes (VAT, withholding, employer's social security, source tax). Printed as three mutually-exclusive checkboxes, combined here into one field per this registry's established convention.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4, \"Tax period of self assessed taxes\": \"☐ Sales for calendar year is €30,000 max. ☐ Sales for calendar year is from €30,001 to €100,000 ☐ Sales for calendar year is higher than €100,000\"",
      "validation": {
        "enum": [
          "up_to_30000",
          "from_30001_to_100000",
          "above_100000"
        ]
      }
    },
    {
      "name": "vatTaxPeriodLength",
      "label": "Desired length of tax period – VAT",
      "type": "enum",
      "required": false,
      "description": "The desired length of the VAT tax period, if the company wants to elect a period shorter than the calendar-year default its turnover bracket would otherwise allow. The Tax Administration decides on the actual length and informs the company in writing.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4, \"Desired length of tax period – VAT\": \"☐ year ☐ quarterly ☐ monthly\"",
      "validation": {
        "enum": [
          "year",
          "quarterly",
          "monthly"
        ]
      }
    },
    {
      "name": "employerContributionsTaxPeriodLength",
      "label": "Desired length of tax period – employer contributions",
      "type": "enum",
      "required": false,
      "description": "The desired length of the tax period for employer's contributions (withholding, employer's social security).",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 3/4, \"Desired length of tax period – employer contributions\": \"☐ quarterly ☐ monthly\"",
      "validation": {
        "enum": [
          "quarterly",
          "monthly"
        ]
      }
    },
    {
      "name": "additionalInformationForTaxAdministration",
      "label": "Additional information for the Tax Administration",
      "type": "string",
      "required": false,
      "description": "Free-text additional information addressed to the Tax Administration.",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 4/4: \"Additional information for the Tax Administration\""
    }
  ],
  "documents": [
    {
      "id": "appendixLimitedOrPublicLimitedCompany",
      "label": "Appendix Form 1 (mandatory enclosure for a limited company or public limited company)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "requiredWhen": {
        "field": "legalEntityType",
        "in": [
          "limited_company",
          "public_limited_company"
        ]
      },
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4, \"Enclosures: select at least one, as appropriate for your legal entity form\": \"1 Limited company or public limited company\""
    },
    {
      "id": "appendixCooperativeOrCooperativeBank",
      "label": "Appendix Form 2 (mandatory enclosure for a co-operative or co-operative bank)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "requiredWhen": {
        "field": "legalEntityType",
        "equals": "co_operative"
      },
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"2 Cooperative or cooperative bank\""
    },
    {
      "id": "appendixBranchOfForeignEnterprise",
      "label": "Appendix Form 3 (mandatory enclosure for a branch of a foreign enterprise)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "requiredWhen": {
        "field": "legalEntityType",
        "equals": "branch_of_foreign_enterprise"
      },
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"3 Branch of a foreign enterprise\""
    },
    {
      "id": "appendixMutualInsuranceCompany",
      "label": "Appendix Form 4 (mandatory enclosure for a mutual insurance company, public mutual insurance company, or insurance association)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"4 Mutual insurance company, public mutual insurance company or insurance association\""
    },
    {
      "id": "appendixRightOfOccupancyAssociationEtc",
      "label": "Appendix Form 5 (mandatory enclosure for a right-of-occupancy association, resident-administered area, EEIG, mortgage society, savings bank, or state public enterprise)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"5 Right-of-occupancy association, resident administered area, European economic interest grouping or branch of an interest grouping located in Finland but registered in another country, mortgage society savings bank or state public enterprise\""
    },
    {
      "id": "appendixFoundation",
      "label": "Appendix Form 11A (mandatory enclosure for a foundation)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "requiredWhen": {
        "field": "legalEntityType",
        "equals": "foundation"
      },
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4: \"11A Foundation\""
    },
    {
      "id": "appendixRegistrationOfForeignEnterprise",
      "label": "Appendix Form 6204 (mandatory enclosure: registration of a foreign enterprise)",
      "category": "supporting-evidence",
      "required": false,
      "belongsTo": "applicant",
      "requiredWhen": {
        "field": "legalEntityType",
        "equals": "foreign_company"
      },
      "sourceRef": "Y1 (\"Perustamisilmoitus\" / \"Start-up notification\", YTJ 1001e 1.2026), page 2/4, \"Enclosures for the Tax Administration\": \"6204 Registration of a foreign enterprise\""
    }
  ],
  "crossFieldValidation": [
    {
      "id": "firstAccountingPeriodEndNotBeforeEstablishmentDate",
      "compare": {
        "field": "firstAccountingPeriodEndDate",
        "operator": "greaterThanOrEqual",
        "compareTo": "establishmentDate"
      }
    }
  ]
}