A Nigerian Tax Identification Number, now commonly called a Tax ID, identifies an individual or organisation for tax administration. People may still call it a TIN or VAT number, but you should use the exact Tax ID shown on your official Nigeria Revenue Service record.
The official Tax ID portal retrieves an individual's record using a National Identification Number and a business record using its CAC name or registration number.
Nigerian Tax ID example
A business tax reference may appear in a format similar to:
12345678-0001
This is an illustrative example only. Do not copy it onto an invoice. Retrieve your own record from the official NRS Tax ID portal and reproduce it exactly as issued.
Is a VAT number the same as a Tax ID or TIN?
The expressions are often mixed together in everyday business conversations:
| Term | What it usually means |
|---|---|
| Tax ID | The current identifier used to recognise a taxpayer |
| TIN | Tax Identification Number, an older and still widely used name for a tax identifier |
| VAT registration | The business's status and obligations for Value Added Tax |
| VAT number | A phrase customers may use when asking for the tax reference connected to VAT registration |
A Tax ID identifies the taxpayer. VAT registration describes the taxpayer's VAT status. Having a Tax ID does not, by itself, prove that every supply is taxable or that a business should charge VAT.
How to retrieve your Tax ID in Nigeria
For an individual
- Open the NRS Tax ID portal.
- Select the individual option.
- Enter your NIN.
- Provide the additional identity information requested.
- Check the result and confirm that your name and details are correct.
For a company or business name
- Open the official Tax ID portal.
- Select the corporate option.
- Search with the registered organisation name or CAC registration number.
- Complete the identity checks shown by the portal.
- Save the confirmed Tax ID in your company records.
The details you enter must match the NIN or CAC record. A spelling difference, old company name or incorrect registration number can prevent a successful match.
How to verify a Tax ID
Use an official NRS or Joint Revenue Board service rather than relying on the appearance of a number in a PDF or email. Check that:
- the Tax ID returns the expected legal name
- the legal name matches the invoice and CAC record
- the business has not supplied an illustrative or incomplete number
- the record belongs to the company you are actually paying
If the official portal cannot find a record, first check the NIN, CAC number and registered spelling. For unresolved mismatches, use the NRS support service rather than repeatedly creating registrations.
Where should the Tax ID appear on an invoice?
Place it in the supplier-details section near the registered business name, address and CAC number.
| Supplier detail | Example |
|---|---|
| Business name | Bright Office Solutions Limited |
| CAC number | RC 1234567 |
| Tax ID | 12345678-0001, illustrative only |
| Address | 14 Allen Avenue, Ikeja, Lagos |
For a VAT invoice, the tax details should be easy for the customer or accounts team to identify. Do not hide them in the payment notes.
Tax ID requirements under the current framework
The Nigeria Tax Administration Act 2025 provides for taxable persons to register and obtain a Tax ID. It also requires a Tax ID to be stated on documents used for tax compliance and transaction documents where applicable.
This does not mean every informal use of the word “VAT number” describes a separate identifier. Use the current official record and confirm your VAT obligations separately.
Common Tax ID and VAT number problems
The customer says your number is invalid
Check for missing digits, spaces, an incorrect branch suffix or a mismatch between the invoice name and official record. Send the customer evidence from the official portal if needed.
Your CAC name has changed
Update the underlying records through the appropriate authority. Do not simply type the new name beside an identifier that still belongs to the old record.
You have more than one Tax ID
Do not choose one at random. Ask the relevant tax authority to harmonise the records. The current law provides for one Tax ID per taxable person.
You have a Tax ID but are unsure whether to charge VAT
Tax identification and VAT liability are different questions. Confirm your business classification and the treatment of the particular supply with NRS or a qualified tax adviser.
Before sending your invoice
Confirm the legal business name, Tax ID, CAC number, VAT treatment and customer details. Then create a Nigerian invoice and review the VAT invoice format and 7.5% VAT calculator.