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Payroll7 min read

The Real Cost of Running Payroll on Spreadsheets

85% of Kenyan SMEs still use Excel for payroll. We looked at the actual financial and time cost for a 30-person company — and the numbers are harder to ignore than most business owners realise.

2026-02-28

Eighty-five percent of Kenyan SMEs run payroll on spreadsheets. Most HR Managers who do it know it is not ideal. Almost none of them have sat down and calculated the actual cost. We did it for them.

The time cost

A 30-person company running payroll on spreadsheets loses an average of 28 hours per payroll cycle. That includes gathering timesheets, calculating deductions, handling exceptions (casual vs permanent, new joiners, leavers), preparing payslips, and generating the KRA filing report.

At a fully-loaded cost of KES 3,000 per hour for a mid-level HR Officer, that is KES 84,000 per month — or KES 1,008,000 per year — in direct payroll processing cost.

That number does not include corrections.

The error cost

When a deduction is miscalculated and a payslip needs to be reissued, the average correction takes 3.5 hours. A 30-person company running spreadsheet payroll experiences an average of 4.2 errors per month.

Those errors compound. A wrong NSSF deduction in January looks fine until the NSSF reconciliation in March. By then you are correcting three months of records simultaneously, which takes longer and is more likely to introduce new errors.

The statutory penalty cost

Errors are not just an internal inconvenience. They carry external costs.

  • Late PAYE filing: minimum KES 10,000 per month
  • Incorrect PAYE calculation: 5% of underpaid amount + 1% per month interest
  • Late NSSF remittance: 5% of the contribution amount per month

For a company underpaying PAYE by KES 50,000 per month (a modest number for a 30-person team), the annual accrued penalty reaches KES 42,000 before interest charges. Add the late filing penalty and the number clears KES 60,000 per year — assuming you catch it at all.

The total

| Cost category | Annual amount | |---|---| | HR processing time | KES 1,008,000 | | Error correction time | KES 176,400 | | Statutory penalty risk | KES 60,000+ | | Total | ~KES 1,244,400 |

An automated payroll platform for the same 30-person company costs roughly KES 180,000 per year on the Growth plan. The payback period measured in processing time alone is less than three months.

Why businesses have not switched

The honest answer is familiarity. The spreadsheet works well enough most months. The HR Manager knows where everything is. The Finance Director can open the file and see the numbers. There is a comfort in that visibility.

The problem is that "well enough most months" is not the same as "correctly, every month." And when it fails — a KRA audit, a disgruntled employee questioning their payslip, a statutory filing that bounces — it fails expensively.

The question is not whether automation makes financial sense. The numbers above are conservative. The question is what it takes to make the switch.

The answer, in our experience: about 45 minutes to set up, one guided payroll run to verify the output against your last spreadsheet, and the realisation that you have just handed 28 hours per month back to your team.

That is what switching feels like in practice. The spreadsheet cost is what it has been costing all along — just invisibly.

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