How to Conduct a Payroll Audit in Nigeria: A Step-by-Step Guide for Businesses

An effective Payroll Audit is essential in Nigerian businesses to detect calculation errors and compliance gaps before they trigger costly penalties from regulations.

A payroll audit is just you checking your own work before someone else does it for you, and possibly less gently. When done well, it improves your accuracy, keeps you compliant, and gives your employees one less reason to worry on payday.

If you’ve never done a full payroll audit, or it’s been a long time, take this as your reminder. Here’s how to do it, step by step.

What Is a Payroll Audit?

A payroll audit is a full review of your payroll records, processes, and controls.

Who runs the audit and when it happens is important. An internal payroll audit is managed by your finance or HR team, on your own schedule, so you can catch errors early while they’re still easy to fix. An external audit happens when someone else, like an investor, acquirer, or PenCom and NRS, needs to review your records, often when your Pension Clearance Certificate is up for renewal.

If you build strong payroll compliance ahead of time, an external audit will just be a routine check instead of a major problem.

Payroll Reconciliation vs Payroll Audit in Nigeria

These two terms are easily mixed up, but they’re not the same.

Payroll reconciliation checks if this month’s payment matches what payroll calculated. It looks at hours, salary, deductions, and net pay, and compares them to the bank records. A payroll audit goes further and asks if you can trust the whole system that produces these numbers, and whether it would pass a regulator’s review.

You need both processes. If you only do reconciliation, you’re just checking the math without looking at the bigger process. If you only do audits, you might review the big picture once a year, but small mistakes can add up in the meantime.

Here’s what that pile-up actually costs. Say a company under-remits pension contributions by ₦150,000 a month because a new hire’s pension PIN was never activated. Reconciliation won’t catch it: the payslip math is consistent, the deduction shows, but it never reaches the PFA. After six months, that’s ₦900,000 unremitted. Under Section 11(6) of the Pension Reform Act 2014, the penalty is 2% of the outstanding amount per month of default. PenCom’s recovery agents have pulled over ₦32 billion from employers in this position since 2012. A quarterly payroll audit Nigeria businesses run properly would have caught that PIN in month one.

If you under-remit pension by ₦150,000 a month because a new hire’s PIN was never activated, reconciliation won’t catch it. The payslip looks right, but the money never reaches the PFA. After six months, that’s ₦900,000 in unremitted funds. The penalty is at least 2% per month. PenCom has recovered over ₦32 billion from employers like this since 2012. A quarterly payroll audit would have caught the missing PIN in month one.

Payroll Audit Nigeria Checklist

1. Employee master records: Names, bank details, tax IDs, and pension PINs, checked against actual documentation, not what’s been sitting in the system since onboarding.

2. Salary structures: Is everyone on the correct grade, with the right split for basic, housing, and transport?

3. Overtime and bonuses: Approved before payment, calculated and taxed correctly, and documented, not just verbally agreed.

4. Leave balances: Accurate, and not silently converted to cash without sign-off.

5. Payroll reports. Reconciled against your general ledger and bank statements; if they don’t match, that gap is where you start digging.

6. Tax deductions: Checked against the current PAYE bands, with the ₦800,000 tax-free threshold and ₦4,000 Development Levy applied, remitted by the 10th of the following month.

7. Pension deductions: The statutory 8% employee and 10% employer contribution on Basic, Housing, and Transport, reaching the correct PFA within 7 working days, in line with PenCom‘s rules.

8. NHF contributions: Confirmed against current requirements through the Federal Mortgage Bank of Nigeria.

9. Bank transfer records: Every payment traceable to an approved payroll run, no unexplained transfers.

If your business has fewer than 50 employees, check every record. If you have more than 50, review a sample and pay special attention to new hires, recent salary changes, and anyone paid outside the usual payroll process.

Common Payroll Risks Businesses Should Watch For

An audit is only effective if you know what to look for. The same issues appear in nearly every payroll compliance audit:

1. Duplicate employees: The same person was entered twice, resulting in two salaries.

2. Ghost employees: Usually not fraud from day one; more often, an exit was never removed from the payroll file, or a contract staffer whose bank details stayed active after leaving.

3. Incorrect salaries: Pay that doesn’t match the approved contract or latest revision.

4. Incorrect deductions: Tax or pension calculated on outdated bands or the wrong salary base.

5. Unauthorized payroll changes: A salary, bank account, or deduction edited by someone who shouldn’t have been able to.

6. Poor documentation: Approvals that exist verbally but never on paper.

Each of these problems might seem minor at first. But if you ignore them, any one can turn into a number your finance team can’t explain. Regular internal payroll audits help you catch these issues early.

Payroll Controls That Support Successful Audits

Good payroll controls do more than help you pass audits. They make audits quicker and easier to manage. Put these controls in place before you need them.

1. Approval workflows: No salary, bonus, or bank detail change without documented sign-off.

2. Segregation of duties: The person who processes payroll should not be the one to approve it as well. Most payroll fraud happens when one person handles both tasks.

3. Payroll reports generated every cycle

4. Audit trails: A record of who changed what, and when, for every payroll edit.

5. Employee record verification: Checked at onboarding and periodically after, in line with Nigeria Data Protection Commission requirements.

Make this a routine every payroll cycle. Managing payroll risks will become easier and less rushed.

What Regulators Actually Ask to See

Knowing what an auditor requests in advance changes how you prepare. PenCom asks for your monthly contribution schedule: employee name, RSA number, PFA, and amount remitted, matched against bank transfer evidence and your Pension Clearance Certificate history. NRS asks for your PAYE remittance schedule, evidence you hit the 10th-of-the-month deadline, and your annual return of emoluments.

Best Practices for Conducting Payroll Audits

1. Run a quarterly payroll review

2. Use the same payroll audit checklist every time

3. Update employee records the day something changes

4. Review statutory deductions against current law

5. Keep audit documentation on file

You need a system that makes reviewing payroll simple.

Improve Payroll Visibility with Eazipay

The difficulty of payroll audits isn’t from the audit itself. It’s from having records spread across different spreadsheets and forgotten agreements.

Eazipay keeps all your payroll records in one place, including employee data, salary history, and statutory deductions. Payroll reports are generated automatically every cycle, so your numbers are ready for audits at any time. Automation helps prevent manual entry mistakes. With clear and traceable data, your team has the transparency auditors expect.

If you’d like to see how this works, get in touch with us.

FAQs

What is a payroll audit?

A payroll audit is a full review of your payroll records, processes, and controls, confirming employees are paid correctly and every statutory deduction is accurate.

Why should businesses conduct payroll audits?

Because payroll errors are expensive to find late, through employee complaints, regulator penalties, or unexplained losses. A payroll audit Nigeria businesses run regularly finds these problems while they’re still cheap to fix.

How often should payroll be audited?

Quarterly internal reviews, with a full annual audit at minimum. Fast-growing teams should audit more often, since headcount changes are where most errors start.

What should be included in a payroll audit?

Employee records, salary structures, overtime and bonuses, leave balances, tax and pension deductions, and bank transfer records, checked against your payroll reports and supporting documentation.

What is the difference between payroll reconciliation and payroll audits?

Reconciliation checks one pay period against what was calculated. A payroll audit reviews the whole system, controls, compliance, and accuracy over time.