A finance manager can run payroll, approve net-pay figures and still carry a compliance error into the next month. The usual cause is not the payroll team. It is a setting left unchanged after a new ceiling, rate or earnings definition took effect.

Use this five-minute test to check whether your payroll software Zambia configuration applies the 2026 PAYE bands, NAPSA ceiling and NHIMA rules correctly. It gives directors and payroll managers a clear control before they submit returns to the Zambia Revenue Authority, NAPSA and NHIMA.

Start With One K15,000 PAYE Test

Enter monthly taxable emoluments of K15,000, with no adjustments, then ask the system for PAYE. For 2026, the Zambia Revenue Authority applies these monthly bands:

●        First K5,100 at 0%

●        K5,100.01 to K7,100 at 20%

●        K7,100.01 to K9,200 at 30%

●        K9,200.01 and above at 37%

Your software should return PAYE of K3,176. The calculation is K400 on the K2,000 second band, K630 on the K2,100 third band, and K2,146 on the K5,800 balance above K9,200.

This test matters because the Zambia Revenue Authority retained the 2026 PAYE bands and rates. A system using an earlier table can create an underpayment even where every employee record looks complete.

Check the pension timing

Your payroll software must calculate PAYE before it deducts the employee’s allowable pension contribution. ZRA ended the pre-tax treatment of that deduction on 1 January 2018.

This remains one of the most common configuration errors we see in payroll reviews. A system may show a pension line correctly on the payslip but still reduce taxable pay before calculating PAYE.

Take an illustrative business with twelve staff and a K15,000 monthly taxable payroll for one senior employee. If the system deducts a K750 pension contribution before PAYE, it calculates tax on K14,250 and produces PAYE of about K2,899 rather than K3,176. That leaves a monthly shortfall of about K278 for that employee. The payroll manager should retain the pension deduction on the payslip, but set the tax engine to calculate PAYE first.

Test NAPSA Against the 2026 Ceiling

NAPSA requires a 10% contribution on gross monthly earnings. The employee pays 5%, and the employer pays 5%.

For this purpose, gross earnings include basic pay, bonuses, commission, severance pay, overtime, leave pay and acting allowances. A payroll system that calculates NAPSA on basic salary alone can understate contributions when an employee earns a sales commission or receives an acting allowance.

For employees who earn K37,236 or more in a month, test these results:

●        Employee NAPSA deduction: K1,861.80

●        Employer NAPSA contribution: K1,861.80

●        Combined monthly contribution: K3,723.60

NAPSA increased the monthly contribution ceiling from K34,164 in 2025 to K37,236 in 2026. The maximum combined contribution therefore rose from K3,416.40 to K3,723.60.

The National Pension Scheme Act No. 72 of 2026 replaced the 1996 Act. NAPSA reports that the 10% contribution rate remained unchanged, but an M&J team member should confirm any operational payroll effect of the new Act before publication.

Run a high-earner test

Take an illustrative Lusaka distribution company with a sales manager on K40,000 gross monthly earnings. The system should cap NAPSA at the 2026 ceiling and show K1,861.80 from the employee and K1,861.80 from the employer. It should not calculate 5% of the full K40,000 for each party.

A company that leaves the 2025 ceiling in place under-remits by K307.20 a month in combined contributions for each employee at or above the cap. The finance team should change the ceiling once in the payroll master data, then test it against the current month before approving payroll.

Do not use a PAYE calculator as a substitute for this NAPSA test. PAYE and NAPSA use different rules, and a correct tax result does not prove that the pension calculation is correct.

Check NHIMA Uses Its Own Earnings Base

NHIMA requires a 1% employee contribution and a 1% employer contribution. Its published wording distinguishes the contribution bases: the employee contribution applies to declared income, while the employer contribution applies to the employee’s basic salary.

Do not assume that NHIMA follows the NAPSA earnings base or that it stops at the NAPSA ceiling. Your payroll software needs separate earning codes and separate rules because the statutory wording differs.

NHIMA requires employers to register an employee within 30 days of the contract start date. Payroll teams often complete the employee record, activate a salary payment and overlook the NHIMA registration workflow.

Take an illustrative manufacturer that pays an employee K12,000 basic salary and K3,000 monthly commission, giving declared income of K15,000. Subject to confirmation of the employee’s declared income, the system should test the employee NHIMA amount at K150 and the employer amount at K120. The K30 difference is exactly why one generic social-security formula creates risk. The employer should map basic salary and declared income separately before the first payroll run.

Confirm the Return and Payment Calendar

A correct calculation still creates exposure when the business misses the filing date or sends a payment without the matching return. Put these deadlines in the payroll close checklist:

●        Submit the Monthly PAYE Return, ITF/P16, and remit PAYE through ZRA TaxOnline by the 10th of the following month.

●        File NHIMA returns through eNHIMA and remit contributions by the 10th of the following month.

●        Submit NAPSA monthly returns and pay within 10 days after month-end through iCARE or eNAPSA.

The ZRA can charge a 5% penalty on late PAYE, plus interest at 2% above the Bank of Zambia discount rate. NHIMA can charge a late-payment penalty of 10% of the outstanding monthly premium, capped at K60,000.

Match the payment reference to the return before the team closes the month. NAPSA contributions can remain unposted or appear misallocated where the employer pays but does not submit the corresponding monthly return correctly.

A Five-Minute Payroll Software Checklist

Use this test after an upgrade, a change of payroll provider or the first payroll of each calendar year.

1.       Enter K15,000 taxable monthly emoluments. Confirm PAYE equals K3,176.

2.       Confirm the PAYE engine calculates tax before the employee pension deduction.

3.       Enter gross earnings of K40,000. Confirm NAPSA caps at K1,861.80 per party for 2026.

4.       Add commission, overtime or an acting allowance. Confirm the NAPSA calculation includes the relevant gross earnings.

5.       Test NHIMA separately from NAPSA. Confirm the employee and employer bases follow NHIMA’s published wording.

6.       Check that the system produces the data needed for ITF/P16, eNHIMA and iCARE or eNAPSA before the 10th deadline.

PACRA and the Zambia Development Agency play important roles in company registration and investment approvals, but they do not set PAYE, NAPSA or NHIMA payroll rates. Keep those regulator records separate from your payroll compliance file so the team checks each obligation with the right authority.

Frequently Asked Questions

What should PAYE be on K15,000 per month in Zambia in 2026?

The test result is K3,176, based on the 2026 monthly PAYE bands published by the Zambia Revenue Authority. Use this as a configuration test, not as a replacement for checking an employee’s full taxable emoluments and adjustments.

Does NAPSA apply to basic salary only?

No. NAPSA states that gross earnings include basic pay, bonuses, commission, overtime, leave pay, severance pay and acting allowances. Review each earnings code in your payroll software before you approve payroll.

What is the 2026 NAPSA ceiling?

The monthly ceiling is K37,236, with a maximum employee contribution of K1,861.80 and an equal employer contribution. The ceiling changed from K34,164 in 2025, so businesses should check that their system did not retain the earlier limit.

When must an employer submit monthly payroll returns?

Submit PAYE with the ITF/P16 through ZRA TaxOnline by the 10th of the following month. File NHIMA returns and remit premiums by the 10th, while NAPSA returns and payments fall due within 10 days after month-end.

Payroll is a control point for tax, employee trust and governance. Visit the payroll software Zambia hub page to assess the right system and advisory support for your enterprise.