Every employer in Zambia is legally required to calculate and deduct Pay As You Earn (PAYE) tax from employee salaries each month and remit it to ZRA by the 10th. Get it wrong — either direction — and the consequences are real: penalties of 5% per month on outstanding amounts, compounding interest, and in serious cases, personal liability for company directors.
This guide walks through the exact calculation method, using the 2026 ZRA tax bands, verified against ZRA's own calculator. Three worked examples at the end show the numbers in full.
Want to skip the manual calculation? Use the ZamPay PAYE Calculator — it does all of this instantly, including NAPSA, NHIMA, and employer cost.
ZamPay's PAYE Calculator — verified against ZRA's official calculator on 9 May 2026.
What Is PAYE and Who Must Deduct It?
PAYE is a withholding tax on employment income, administered by the Zambia Revenue Authority (ZRA) under the Income Tax Act, Chapter 323 of the Laws of Zambia. The employer — not the employee — is legally responsible for calculating and remitting PAYE.
Any employer with employees earning above the monthly tax-free threshold of K5,100 must register for PAYE, deduct the correct amount from each employee's salary, and remit it to ZRA TaxOnline by the 10th of the following month.
This applies to full-time employees, part-time employees, and casual workers. Contract type does not exempt anyone earning above the threshold from PAYE.
The 2026 ZRA PAYE Tax Bands
Zambia uses a progressive tax system. Different portions of an employee's gross income are taxed at different rates — not one flat rate applied to the whole salary.
The 2026 monthly PAYE bands are:
| Monthly Gross | Tax Rate | Tax on This Portion |
|---|---|---|
| K0 – K5,100 | 0% | K0 (tax-free threshold) |
| K5,101 – K7,100 | 20% | Up to K400 |
| K7,101 – K9,200 | 30% | Up to K630 |
| Above K9,200 | 37% | 37% of everything above K9,200 |
The maximum tax on the first three bands combined is K1,030 per month. Everything above K9,200 is taxed at 37%.
How to Calculate PAYE — Four Steps
Step 1 — Calculate gross emoluments
Gross emoluments is the total of everything the employee receives for the month:
- Basic salary
- Cash allowances (housing, transport, lunch, responsibility, acting, leave allowance, etc.)
- Overtime
- Bonuses and commissions
All cash payments are included. Non-cash benefits have their own ZRA valuation rules.
Step 2 — Apply the progressive bands to full gross
PAYE is calculated on full gross emoluments — before any other deductions. NAPSA is not deducted first. NHIMA is not deducted first. The full gross figure goes straight into the tax bands.
Apply each band progressively:
- The first K5,100 of gross is taxed at 0%.
- The portion between K5,101 and K7,100 (max K2,000) is taxed at 20% — maximum K400.
- The portion between K7,101 and K9,200 (max K2,100) is taxed at 30% — maximum K630.
- Everything above K9,200 is taxed at 37%.
Add the four amounts together for total monthly PAYE.
ZamPay shows the full step-by-step PAYE breakdown — each band calculated separately and totalled.
Step 3 — Deduct NAPSA and NHIMA in parallel
NAPSA and NHIMA are deducted alongside PAYE — not before it. Both are calculated independently from gross.
NAPSA (employee): 5% of gross emoluments, capped at K1,861.80 per month. The earnings ceiling is K37,236 — if gross exceeds this, NAPSA is fixed at K1,861.80.
NHIMA (employee): 1% of basic salary only. Allowances, overtime, and bonuses are not included in the NHIMA base. No ceiling.
Step 4 — Net pay
Net pay = Gross − PAYE − NAPSA − NHIMA
The employee receives net pay. The employer remits PAYE to ZRA TaxOnline, NAPSA to iCare, and NHIMA to the NHIMA portal — all by the 10th of the following month.
Worked Examples at Three Salary Levels
Example 1 — K5,000 gross (below the threshold)
Basic salary: K5,000. No allowances. Gross emoluments: K5,000.
| Calculation | Amount |
|---|---|
| PAYE (K5,000 below K5,100 threshold) | K0.00 |
| NAPSA (5% of K5,000) | K250.00 |
| NHIMA (1% of K5,000 basic) | K50.00 |
| Net pay | K4,700.00 |
No PAYE is owed. But the employer still owes employer-side NAPSA (K250) and employer NHIMA (K50) on top of the gross salary.
Example 2 — K15,000 gross (mid-range)
Basic salary: K12,000. Cash allowances: K3,000. Gross emoluments: K15,000.
PAYE breakdown:
| Band | Calculation | Amount |
|---|---|---|
| K0 – K5,100 @ 0% | K5,100 × 0% | K0.00 |
| K5,101 – K7,100 @ 20% | K2,000 × 20% | K400.00 |
| K7,101 – K9,200 @ 30% | K2,100 × 30% | K630.00 |
| K9,201 – K15,000 @ 37% | K5,800 × 37% | K2,146.00 |
| Total PAYE | K3,176.00 |
NAPSA: K15,000 × 5% = K750.00 (below the K37,236 ceiling)
NHIMA: K12,000 × 1% = K120.00 (basic salary only — allowances excluded)
Net pay: K15,000 − K3,176 − K750 − K120 = K10,954.00
Example 3 — K40,000 gross (senior level)
Basic salary: K35,000. Cash allowances: K5,000. Gross emoluments: K40,000.
PAYE breakdown:
| Band | Calculation | Amount |
|---|---|---|
| K0 – K5,100 @ 0% | K5,100 × 0% | K0.00 |
| K5,101 – K7,100 @ 20% | K2,000 × 20% | K400.00 |
| K7,101 – K9,200 @ 30% | K2,100 × 30% | K630.00 |
| K9,201 – K40,000 @ 37% | K30,800 × 37% | K11,396.00 |
| Total PAYE | K12,426.00 |
NAPSA: K1,861.80 (capped — K40,000 exceeds K37,236 earnings ceiling)
NHIMA: K35,000 × 1% = K350.00 (basic salary only)
Net pay: K40,000 − K12,426 − K1,861.80 − K350 = K25,362.20
ZamPay's PAYE Calculator shows the complete monthly breakdown in real time.
The Most Common PAYE Mistake in Zambia
Many payroll calculators — and even some payroll software — deduct NAPSA from gross before applying the PAYE bands. This produces a lower PAYE figure and leaves the employer under-remitting to ZRA.
This is wrong.
ZRA's own PAYE Calculator at zra.org.zm/calculate-paye applies PAYE bands to full gross emoluments. The Income Tax Act, Chapter 323, defines chargeable income as gross emoluments — NAPSA does not reduce the PAYE base. ZamPay verified this directly against ZRA's calculator on 9 May 2026 and updated its payroll engine accordingly.
If you have been deducting NAPSA before PAYE, your historical remittances are likely understated.
ZamPay flags the most common PAYE calculation error directly in the calculator UI.
Filing PAYE — Deadlines and Penalties
PAYE must be remitted to ZRA TaxOnline by the 10th of the month following the payroll period. For May payroll, the deadline is 10 June.
Late or incorrect remittance attracts:
- A penalty of 5% of the outstanding tax per month
- Interest on the unpaid amount
- In cases of wilful non-compliance, criminal prosecution of company directors under the Income Tax Act
The same 10th deadline applies to NAPSA (via iCare) and NHIMA (via the NHIMA portal). Three portals, three uploads, one deadline.
ZamPay generates portal-ready exports for all three statutory bodies automatically on each payroll run.
How ZamPay Handles PAYE
ZamPay calculates PAYE automatically on every payroll run using the 2026 ZRA bands applied to full gross emoluments. The calculation is verified against ZRA's official calculator and updated when bands change — no formulas to maintain.
The ZamPay PAYE Calculator at zampay.biz/paye is free to use without signing up. Enter any salary and see the full monthly breakdown — PAYE by band, NAPSA, NHIMA, net pay, and total employer cost including SDL — in real time.
For specific compliance questions about your calculation, ask Leah — ZamPay's AI compliance advisor — directly from the calculator page.
Ask Leah a PAYE compliance question directly from the calculator — no signup required.
Calculate Your PAYE Now
The ZamPay PAYE Calculator is free, requires no signup, and uses ZRA's verified 2026 method. Try it now: ZamPay PAYE Calculator.
Running payroll for a team? ZamPay lets you run compliant payroll for every employee in under 45 minutes a month — PAYE, NAPSA, NHIMA, payslips, and portal-ready exports included. Free for up to 5 employees.
Or run a free Payroll Health Check to see how your current payroll compares.
WhatsApp us at +260 573918484 with any PAYE questions. We read every message.
ZamPay's founder and CEO. With deep roots in Zambian business and a focus on compliance technology, he writes on payroll, tax, and the systems that keep Zambian businesses running correctly.
— AI Mwawona
CEO, ZamPay
Source: Income Tax Act, Chapter 323 of the Laws of Zambia. ZRA PAYE Calculator (zra.org.zm/calculate-paye), verified 9 May 2026.