How to File NSSF Returns as a Kenyan Employer

How to File NSSF Returns as a Kenyan Employer

Filing NSSF returns is mandatory every month, and the deadline is the 9th of the following month — not the 10th. Miss it and you face a penalty of 5% of the unpaid contributions, plus 1% monthly interest. Get the deadline right and you stay compliant; get it wrong and the cost compounds fast.

Step 1: Ensure Your Business is Registered with NSSF

Before you file anything, your business must be registered with NSSF. Visit www.nssf.or.ke and complete employer registration if you haven't already. You'll need your Business Registration Certificate, PIN certificate, and KRA Compliance Certificate. Once registered, you receive employer credentials to access the online portal.

Step 2: Log Into the NSSF Employer Portal

Use your registered username and password to log into the NSSF e-portal. The platform lets you file returns electronically, track payment status, and download compliance reports. Keep your KRA registration current at itax.kra.go.ke to avoid submission issues; NSSF returns now cross-check against KRA records.

What You Need to File:

• Employee names and NSSF registration numbers
• Gross monthly salaries for each employee
• Employee NSSF contribution (6% of pensionable earnings, capped at KSh 6,480 from February 2026)
• Employer NSSF contribution (matching 6%, capped at KSh 6,480)
• Any arrears or adjustments from previous months

Step 3: File Your Return by the 9th

NSSF contributions must be remitted by the 9th day of the following month. The system timestamps your submission automatically, providing proof of filing that protects you legally. For example, contributions deducted in January are due by 9 February.

Step 4: Remit Payment to NSSF

After submitting your return, pay NSSF by the same deadline. NSSF's M-Pesa paybill is 333300. Use your NSSF Unique Payment Number (UPN) as your account number — you'll find it on the e-slip after uploading returns. Keep payment receipts and reconcile them monthly against filed returns.

Understanding the Payroll Order Matters

NSSF contributions, SHIF, and the Affordable Housing Levy are deductible before PAYE is worked out. This means you deduct NSSF, SHIF (at 2.75%) and the Housing Levy (1.5%) first, then calculate PAYE on what remains. Get this order wrong and your payroll overstates the tax your employees owe. Many employers using outdated spreadsheets make this mistake every month.

Common Filing Errors to Avoid

Rejections usually come from incorrect employee NSSF numbers, salary mismatches with KRA records, or missing employee data. Verify all employee information against your payroll system before submission. If your NSSF Tier I or Tier II caps have changed (they moved in February 2026), update your payroll software or template immediately — do not keep using last year's limits.

Late Payment Penalties

Late NSSF contributions attract a 5% penalty on the unpaid amount, plus 1% monthly interest. A day late is treated as a month late. Even a small business that misses the deadline once and catches up late can owe hundreds of shillings in cumulative penalties. Use a calendar reminder.

Keep Records for Five Years

Maintain detailed payroll records for at least five years. NSSF conducts random audits of employer contributions, and incomplete records attract penalties. For complex compliance needs or guidance on the February 2026 rate changes, find a verified Kenyan expert on Kaziiko who specialises in employer compliance. You can also use our NSSF contribution calculator to verify your figures before filing.

Frequently Asked Questions

What is the NSSF filing deadline?

NSSF contributions must be remitted by the 9th day of the following month. January contributions are due by 9 February. If the 9th falls on a weekend or public holiday, remit by the next working day.

What happens if I pay NSSF late?

Late NSSF contributions attract a 5% penalty on the unpaid amount, plus 1% monthly interest. The penalty applies for each month or part of a month the payment is outstanding, so it accumulates quickly if you do not catch up.

Do NSSF and SHIF reduce my employee's taxable income?

Yes. NSSF contributions, SHIF, and the Affordable Housing Levy are deductible before PAYE is worked out, so they lower the amount of income tax your employee owes. This is a material benefit but is often overlooked in manual payroll calculations.

Can I use an old payroll template from 2024 or 2025?

No. From 1 February 2026, the Lower Earnings Limit rose to KES 9,000 and the Upper Earnings Limit rose to KES 108,000. Update your template immediately or switch to payroll software that reflects the current limits — using old caps understates your contributions and triggers compliance issues.