What is actually changing
Uganda is retiring the standalone 10-digit TIN as the primary tax identifier. The legal basis is Section 4 of the Tax Procedures Code Act (Cap 343), amended in 2025, with a statutory effective date of 1 July 2025 and a URA public notice dated 21 May 2026. Cabinet approved the NIN as the primary individual tax identifier on 31 August 2026.
What replaces your TIN
- Individuals: NIN — National Identification Number issued by NIRA (National Identification and Registration Authority).
- Companies and non-individuals: BRN — Business Registration Number issued by URSB (Uganda Registration Services Bureau). Some URA manufacturer briefings call it RBN; treat BRN and RBN as the same identifier for companies.
- NGOs and non-profit organisations: EBN — Entity Business Number.
- A TIN issued by a foreign tax authority with which Uganda has a tax treaty remains recognised, according to EY Tax News (28 May 2026).
Why URA is making this change
URA's stated purpose is a single, more secure identifier for government services. It is intended to curb fraud, reduce duplicated taxpayer records, fragmented information and weak identification, improve record accuracy, and make automatic tax registration possible. In practice, a single ID reduces the risk of being mistakenly flagged as non-compliant because inconsistent records can reconcile themselves.
What URA requires you to update now
The 21 May 2026 public notice requires every registered taxpayer to update registration details with the applicable identifier (NIN for individuals, BRN for non-individuals), current active telephone numbers, physical address, and nature of business.
The consequence of not updating
If you do not update, URA's system will prompt you to update your details before it will process any transaction when you log into your TIN account on the URA web portal. You can update online or visit the nearest URA office.
The real risk is data mismatch, not the registration form
The migration is being treated by URA as a data-quality exercise, not a new registration burden. URA is mapping existing TIN records to NINs so tax history is not lost, according to Christine Mirembe, Assistant Commissioner Client Services. But the operational risk sits in your own systems: if the identifier on an EFRIS invoice, supplier master data, or payroll record does not match URA's record, transactions can fail or deductions can be disputed. This is the same mismatch logic behind URA's 22 compliance red flags for FY2026/27.
A practical update checklist
Work through these seven steps in order; they are designed to keep you ahead of the system prompts rather than reacting to them.
- Verify which identifier now applies: NIN for sole proprietors and individuals, BRN for companies and LLCs.
- Log into the URA portal or ask URA whether your identifier is already on file.
- Update your URA registration details now: identifier, telephone number, physical address, and nature of business.
- Reconcile the identifier across EFRIS, invoices and receipts, bank mandates, supplier/customer master data, and payroll.
- Cross-check the BRN on your URSB certificate and the NIN with NIRA so the numbers match.
- Watch for the Minister's commencement date and the non-individual registration regulations.
- Treat any transaction where an identifier is wrong as a compliance risk, not a clerical error.
Tip
Treat this as a data-reconciliation exercise, not a one-time form. The identifier on every invoice, receipt, bank instruction and supplier record should match URA's record before you rely on the transaction.
What to watch next
The amended law states the new identifier regime commences on a date appointed by the Minister, who will also issue detailed regulations for registering and assigning numbers to non-individuals. The cutover is phased; do not assume everything switches overnight. Update now so you are not blocked mid-transaction. URA's next-generation digital tax platform, eTAX2, entered implementation in February 2026, according to Charlotte Molly Nampijja, Business Process Re-engineering Lead.
For a fuller read, the URA public notice (2026), EY Tax News (28 May 2026), Nilepost (7 September 2026), Monitor (18 September 2026), and Onyango & Company Advocates (23 June 2026) all describe the same requirement from different angles.
For businesses that also import, the same registered identity now feeds import compliance and withholding obligations. If you have not yet mapped the new identifier to your customs agent or vendor records, it is worth reviewing Uganda's new 2.5% import levy because import documentation and tax identity are now part of the same reconciliation stack.
Similarly, if you buy software or subscribe to SaaS, the supplier's tax identity affects withholding. The principles in Uganda's 15% Software Withholding Tax: What It Adds to Your Bill apply when reconciling new identifiers on vendor invoices.