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Tanzania, United Republic of

The United Republic of Tanzania uses a Taxpayer Identification Number (TIN) administered by the Tanzania Revenue Authority for both individuals and entities. Zanzibar tax administration also uses a Zanzibar Revenue Authority registration number, also called a Zanzibar Taxpayer Number, for persons and entities that need to pay taxes or conduct business transactions in Zanzibar.

TZ TZA 2 TIN types Last reviewed 2026-06-05

TIN types

2 published formats. Open a type to see examples, structure details, and official sources.

Validate TZA TIN
Tanzania Taxpayer Identification Number (TIN)
Current Individuals Entities

Tanzania Revenue Authority (TRA)

Primary taxpayer identifier issued by TRA and used by individuals and entities for Tanzania tax-law purposes.

Details
Examples
100-123-456
Where to find it

On the TRA TIN certificate, in the TRA taxpayer portal, and on tax correspondence or filings.

Common names
TIN Taxpayer Identification Number Tax Identification Number
Structure
1-3 First block First three digits of the taxpayer number.
4-6 Second block Middle three digits of the taxpayer number.
7-9 Final block Last three digits of the taxpayer number.
Official source
tra.go.tz
Zanzibar Taxpayer Number (ZTN)
Current Individuals Entities

Zanzibar Revenue Authority (ZRA)

Zanzibar tax registration identifier, also described by ZRA as the ZRA Registration Number, assigned to persons and legal entities that need to pay taxes or conduct business transactions in Zanzibar.

Details
Examples
ZRA123456
Where to find it

In the ZIDRAS taxpayer portal and on ZRA registration or tax correspondence.

Common names
ZTN ZRA Registration Number ZRA Reference Number Zanzibar Registration Number
Official source
zanrevenue.org portalzidras.zanrevenue.org