Document format and locale facts for Isle of Man

Why these defaults?

The country code comes from ISO 3166. Unicode CLDR supplies presentation-oriented locale, currency, paper, date, language, calendar, numbering, and direction metadata. Defaults reduce setup time; they do not decide what a valid document must contain.

Recorded official or regional-official language tags: en, gv.

Selected national claims reviewed

Document vocabulary and checks

Core Isle of Man VAT-invoice scope and particulars, VAT identity, credit/debit corrections, six-year business and company-record retention, electronic-invoice conditions, and the separate VAT-return portal boundary are reviewed. HMRC Notice 700 is used only because the notice itself covers Isle of Man supplies and Isle of Man Government explains the shared VAT legal framework; this is not silent UK inheritance. Special schemes, imports/exports, entity status and transaction-specific VAT treatment remain separate checks.

Evidence snapshot: 6 official sources · last reviewed 2026-07-19. This is scoped guidance, not a jurisdiction-wide compliance certification.

Tax labels: VAT. Business identifier labels: VAT Registration Number / Tax Identification Number (TIN).

• Required when applicable: For an Isle of Man taxable supply, a VAT-registered supplier must issue a VAT invoice for standard- or reduced-rated goods or services supplied to another VAT-registered person. A full invoice shows a unique sequential number; tax point and, when different, issue date; supplier name, address and VAT number; customer name and address; identifiable goods or services; quantity or service extent, unit price, VAT rate and amount payable excluding VAT for each description; total excluding VAT; cash discount; and total VAT in sterling.Evidence IM_GOV_CUSTOMS_AGREEMENT, IM_HMRC_VAT_NOTICE_700 · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Required when applicable: Show the supplier's VAT registration number only after Isle of Man Customs and Immigration has issued it. Registration provides a VAT certificate and TIN; a business waiting for its VAT number must not include VAT on invoices.Evidence IM_GOV_VAT_REGISTRATION · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Guidance: Use a VAT credit note for a genuine mistake, overcharge or agreed reduction and keep a copy. A valid debit note for an undercharge or agreed increase identifies the note and date, supplier and VAT number, customer, original invoice and date, affected supply, price increase excluding VAT, and the VAT rate and amount in sterling. Adjust the VAT records in the applicable period.Evidence IM_GOV_CUSTOMS_AGREEMENT, IM_HMRC_VAT_NOTICE_700 · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Required when applicable: Keep business records for at least six years, including records of business receipts and payments and the receipts, statements and similar evidence needed to verify the figures. VAT and company-record duties can add transaction- or entity-specific requirements.Evidence IM_GOV_RECORD_KEEPING, IM_COMPANIES_ACT_2006 · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Guidance: Electronic VAT invoices may be used if they contain the same particulars as paper invoices and preserve origin authenticity, data integrity and legibility. The Isle of Man VAT Online Portal is a separate service for filing VAT returns and payments; this local printable or electronic document does not file a return, transmit invoice data, or register the supplier with Customs and Immigration.Evidence IM_HMRC_VAT_NOTICE_700, IM_GOV_VAT_SCOPE · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only

Identifier format guidance: See the relevant authority.