IR · Country and locale facts
Document format and locale facts for Iran
Use these defaults as a practical starting point for presentation. ISO/CLDR formatting facts are not legal or tax advice, and reviewed jurisdiction guidance is identified separately.
Currency & locale
IRR · fa-IR
Paper & date
A4 · YYYY/MM/DD (YMD)
Language
fa (official) · RTL
Text system
persian calendar · arabext digits
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: fa.
Source review completed; detailed guidance unavailable
Evidence is insufficient for safe claim-level guidance
No accessible current INTA instrument captured for taxpayer-system invoice schema, identifiers, retention and rollout. This is a documented research blocker, not a conclusion that no requirements exist. No parent-country rules are inherited and no compliance claim is made.
Registry provenance
- ISO 3166 Country Codescode-list · verified 2026-07-15
- Unicode CLDR 48.2formatting-metadata · verified 2026-07-15
- Unicode CLDR Territory-Language Informationformatting-metadata · verified 2026-07-15