How do I prepare for tax audits?

In 2026, the Nigeria Revenue Service (NRS) uses a "Digital-First" audit approach. This means they often start with a Desk Examination—where they use AI to compare your bank account activity (reported quarterly by banks) against your tax filings—before ever visiting your office.

If you receive a notice for a field audit or a "Monitoring Exercise," here is how you should prepare under the Nigeria Tax Administration Act 2025 rules:

1. Conduct a "Pre-Audit" Reconciliation

Before the auditors arrive, ensure your records are internally consistent. In 2026, the NRS looks for these specific mismatches:

• Bank vs. Revenue: Do the total credits in your bank statement match the revenue on your Profit & Loss? If not, you must have a "Reconciliation Statement" explaining the difference (e.g., director's loans, refunds, or internal transfers).
• VAT vs. Sales: Does the 7.5% VAT you remitted match the sales you declared?
• PAYE vs. Staff Costs: Does the "Salaries & Wages" line in your accounts match the total gross pay on your monthly PAYE schedules?

2. Organize Your 2026 "Audit Box"

The NRS typically requests documents for the last 6 years. You should have digital or physical folders organized by year, containing:

• Primary Records: Trial Balance, General Ledger, and Fixed Asset Register.
• Supporting Evidence: Invoices (sequential), receipts for all expenses, and bank statements for all business accounts.
• Statutory Receipts: Evidence of payment for CIT, VAT, WHT, and PAYE.
• Specific 2026 Reliefs: If you claimed the Rent Relief (capped at ₦500,000) or the Small Business Exemption, have the supporting declarations ready.

3. The 2026 "Verification" Checklist

The NTAA 2025 has introduced new verification steps. Check these three things specifically:

| Item | Verification Step |

| Vendor TINs | Check that all vendors you paid more than ₦100,000 have valid TINs. Paying a non-registered vendor now carries a ₦5 million penalty. |

| TCC Status | Ensure your current Tax Clearance Certificate (TCC) is active. An expired TCC is an automatic red flag for an audit. |

| Asset VAT | Ensure you have proof that VAT was paid on all equipment. You cannot claim Capital Allowances on assets where VAT/import duties were skipped. |

4. During the Audit: Your Rights & Obligations

• The 30-Day Rule: Once you receive a "Notice of Assessment" after an audit, you have exactly 30 days to object in writing. If you miss this, the tax debt becomes "Final and Conclusive," and the NRS can freeze your bank accounts.
• Be Professional: You have the right to ask for the auditors' NRS ID cards and the specific "Letter of Authorization" for the audit.
• Don't Volunteer Extra Info: Answer only the questions asked. Providing a document they didn't request might open a new "line of inquiry" you weren't prepared for.

Summary of 2026 Penalties to Avoid

2026 Pro-Tip: If the auditors find a mistake, the NTAA 2025 allows for a "Voluntary Disclosure." If you admit to an error before they officially "catch" it during the final report, you can often negotiate a waiver of the 25% penalty.