The verdict in three sentences
Manual payroll in Excel costs an SME 1 to 2 days a month and exposes it to social-security and pension contribution errors plus late-filing penalties. A payroll app automatically computes contributions, issues compliant payslips and triggers salary payments by Mobile Money in a batch. The return on investment comes from time saved and penalties avoided, not just the software price.
Excel, accountant-only, or a payroll app?
Three approaches coexist in 2026. Excel is free but fragile: one broken formula corrupts the whole payroll. An external accountant is reliable but bills per file and is slow to fix mistakes. The app centralises calculation, history and payment.
| Criterion | Excel | Accountant only | Payroll app |
|---|---|---|---|
| Time per month (12 staff) | 1-2 days | 0.5 day (SME side) | < 2 hours |
| Contribution error risk | High | Low | Low |
| Auto compliant payslips | No | Yes | Yes |
| Salary payment by Mobile Money | No | No | Yes (batch) |
| Monthly cost (order of magnitude) | 0 | 50,000-150,000 FCFA | 500-1,500 FCFA / employee |
| History and archiving | Fragile | With third party | Centralised |
What the app computes for you
The rates below are 2026 orders of magnitude to confirm with your accountant; the app keeps them updated and applies caps automatically.
| Item | Base | 2026 order of magnitude |
|---|---|---|
| Nigeria PAYE (progressive) | Gross salary | withheld at source |
| Pension (employee) | Gross salary | 8 % |
| Pension (employer) | Gross salary | 10 % |
| NHF / other levies | Salary | per applicable rule |
| Late-filing penalty | Amounts due | surcharge + interest |
| Senegal CNSS/IPRES (employer) | Capped salary | ~7 % + ~8.4 % |
For comparison, Senegal uses CNSS (~7 % family benefits) + work-accident 1-5 % + IPRES (~8.4 % employer). A multi-country app applies the correct scheme per the employee's country, which matters for pan-African groups operating on both sides of the language border.
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Mini case study
Grace runs a security firm in Lagos with 18 guards. Her monthly payroll in Excel takes 1.5 days and she incurred a penalty last year for a late pension filing. With an app at 1,000 FCFA / employee / month (about NGN equivalent), she pays 18,000 FCFA/month, i.e. 216,000 FCFA/year. She recovers roughly 16 working days a year and removes the penalty risk. A custom build would cost 1,000,000 to 4,000,000 FCFA; at her volume, the SaaS subscription is the rational choice.
FAQ
Does the app really handle statutory compliance? Yes: it applies the current rates and caps and issues compliant payslips. In Nigeria that means PAYE + pension 8%/10%; the app removes the data-entry errors that cause most reassessments.
Can salaries be paid by Mobile Money or transfer? Yes, in a batch: the app generates a payment file and triggers transfers to each employee with proof of payment. For 18 staff it takes minutes instead of a morning.
Should I build a tool or subscribe monthly? Below 30-40 employees, a SaaS at 500-1,500 FCFA/employee/month is cheaper. Above that, or with specific rules (complex bonuses, multi-entity), a custom build at 1,000,000-4,000,000 FCFA is justified.
How much time do you really save? You typically go from 1 to 2 days a month to under 2 hours, saving about 15 to 20 working days a year for a 15-20 person SME.
What about a company operating in both Nigeria and Senegal? A multi-country app applies PAYE + pension on one side and CNSS/IPRES on the other, with a single dashboard, so you avoid maintaining two separate payroll systems.
Let's talk about your project. We build your compliant HR & payroll app with batch Mobile Money payouts. WhatsApp +221 77 596 93 33.
Mohamed Bah
Fondateur, Kolonell
Passionate about digital and entrepreneurship in Africa, Mohamed has been helping Sénégalese businesses with their digital transformation since 2020. Founder of Kolonell, he believes every SME deserves a professional and accessible online présence.