Country guide

Tonga

Tonga uses a Ministry of Revenue and Customs Tax Identification Number (TIN) for individuals, sole traders, and non-individual taxpayers. Public sources support a single six-digit numeric TIN rather than separate materially distinct TIN formats by holder type.

TO TON 1 TIN type Last reviewed 2026-06-05

TIN types

1 published format. Open a type to see examples, structure details, and official sources.

Validate Tonga TIN

Tongan Tax Identification Number (TIN)

Current Individuals Entities

Ministry of Revenue and Customs

The TIN is the taxpayer identifier used by the Ministry of Revenue and Customs for individuals, sole traders, businesses, companies, trusts, partnerships, societies, and other non-individual taxpayers.

Details

Examples

123456

Where to find it

On the TIN confirmation letter and in Ministry of Revenue and Customs tax, eTax, customs, and registration documents.

Common names

TIN Tax Identification Number Taxpayer Identification Number Fika Tukuhau

Structure

1-6 Sequential number Six-digit taxpayer number allocated by the revenue registration system.

Official source

revenue.gov.to etax.revenue.gov.to ago.gov.to tadat.org