Tanzania Revenue Authority (TRA) confirms the launch of the Integrated Domestic Revenue Administration System (IDRAS), a unified domestic tax administration platform, effective 9 February 2026.
What is changing
IDRAS Implementation
- From 9 February 2026, IDRAS applies as the single digital platform for domestic tax administration in Tanzania.
- IDRAS replaces multiple existing domestic tax systems, including registration, filing, and payment modules.
- The platform operates as a one-stop portal linked to each taxpayer’s Taxpayer Identification Number (TIN).
- IDRAS integrates with other government databases to support more accurate, data-driven tax assessments.
System migration and downtime
- Existing domestic tax systems, including the Online Taxpayer Portal, will be unavailable from 6 February 2026 to 8 February 2026 for data migration.
- Existing TIN data will be migrated automatically, but users must ensure contact details and authorised declarants are updated by 6 February 2026.
Monthly payroll declaration timeline under IDRAS
- The first live monthly payroll declaration under IDRAS applies for February 2026 payroll and is due by 7 March 2026, in line with statutory monthly filing deadlines.
Official source
- Click here to access the official publication: https://taxpayersportal.tra.go.tz/ept/launch