Document format and locale facts for India

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: hi, en, bn, te, mr, ta, ur, gu, kn, ml, or, pa, as, mai, ne, sat, ks, kok, sd, sd-Deva, kha, sa.

Selected national claims reviewed

Document vocabulary and checks

Core Indian GST tax-invoice particulars, financial-year numbering, 72-month record retention and the current INR 5 crore e-invoice threshold and IRP boundary are reviewed. GST registration and identifier validation, place-of-supply conclusions, exemptions, special documents, sector rules, appeals and transaction-specific GST treatment remain separate checks.

Evidence snapshot: 4 official sources · last reviewed 2026-07-19. This is scoped guidance, not a jurisdiction-wide compliance certification.

Tax labels: GST. Business identifier labels: Goods and Services Tax Identification Number (GSTIN).

• Required when applicable: For an Indian GST tax invoice, Rule 46 requires the supplier's name, address and GSTIN; a consecutive serial number; issue date; registered-recipient identity and GSTIN/UIN; HSN or accounting code; description, quantity for goods, value, taxable value, rate and amount of tax; place of supply for interstate supplies; delivery address when different; reverse-charge indication; and the supplier's signature or digital signature, subject to the rule's conditions and special-document exceptions.Evidence IN_CBIC_CGST_RULES · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Required when applicable: Use a consecutive serial number, unique for the financial year, containing no more than 16 characters as prescribed by CGST Rule 46 for a tax invoice. Sector-specific documents and revised invoices can follow separate rules.Evidence IN_CBIC_CGST_RULES · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Required when applicable: A registered person must generally retain GST accounts and records for 72 months from the due date of the annual return for the relevant year. Appeals, revisions, proceedings and investigations can extend that period.Evidence IN_CBIC_CGST_ACT · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only
• Guidance: Where India's e-invoicing mandate applies, the supplier reports invoice data to an Invoice Registration Portal for authentication and an IRN and signed QR code. The official portal describes the current notified class as taxpayers whose aggregate annual turnover reached INR 5 crore or more in a preceding financial year from 2017-18, with exclusions and document/transaction limits. This local printable document does not report to an IRP or receive an IRN or signed QR code.Evidence IN_GST_EINVOICE_MANDATE · reviewed 2026-07-19 · review by 2027-01-19 · automation advisory only

Identifier format guidance: See the relevant authority.