In Short: The 7-Step PAYE Calculation Method
To calculate PAYE in Kenya: (1) Determine gross earnings, (2) Deduct NSSF, (3) Deduct SHIF (2.75%), (4) Deduct Housing Levy (1.5%), (5) Establish net taxable pay, (6) Apply progressive tax brackets (10% to 35%) to find tax before relief, and (7) Subtract personal relief (KES 2,400) to find net PAYE.
Calculating your monthly income tax deduction does not have to be confusing. By utilizing an accurate, verified PAYE calculator, Kenyan workers and payroll accountants can verify that every statutory deduction complies with published KRA, NSSF, and SHA legislation.
The formula in one line
At its mathematical core, PAYE in Kenya is defined by a simple principle:
where Taxable Pay = Gross Remuneration - Allowable Statutory Deductions (NSSF + SHIF + Housing Levy + Approved Pension).
Step-by-step: KES 100,000 salary
To demonstrate the exact formula in action, let us trace a flagship monthly salary of KES 100,000 (basic pay plus regular cash allowances) under 2026 published statutory rates:
Step 1: Determine Total Gross Earnings
Gross remuneration equals all cash compensation earned during the month. In our benchmark case: Gross Pay = KES 100,000.00.
Step 2: Calculate NSSF Pension Contribution
In 2026, employee NSSF contributions are 6% of pensionable earnings up to the Upper Earnings Limit of KES 108,000. Since KES 100,000 is below the KES 108,000 cap: 6% × KES 100,000 = KES 6,000.00 (split into Tier I KES 540.00 and Tier II KES 5,460.00). Check tier limits with our NSSF calculator.
Step 3: Calculate SHIF Health Contribution
Under the Social Health Authority regulations, employee health insurance is calculated as 2.75% of gross earnings: 2.75% × KES 100,000 = KES 2,750.00. See rates on our SHIF calculator.
Step 4: Calculate Affordable Housing Levy
The statutory employee housing contribution is 1.5% of gross pay: 1.5% × KES 100,000 = KES 1,500.00. Review rules with our housing levy calculator.
Step 5: Compute Net Taxable Pay
Subtract all allowable statutory deductions from gross earnings:
Taxable Pay = KES 100,000 - KES 6,000 (NSSF) - KES 2,750 (SHIF) - KES 1,500 (AHL) = KES 89,750.00.
Step 6: Apply Progressive PAYE Brackets
Slice the KES 89,750 taxable income across current PAYE tax brackets:
- First KES 24,000 taxed @ 10% = KES 2,400.00
- Next KES 8,333 taxed @ 25% = KES 2,083.25
- Remaining KES 57,417 (KES 89,750 - KES 32,333) taxed @ 30% = KES 17,225.10
Total Gross Tax Before Relief = KES 2,400.00 + KES 2,083.25 + KES 17,225.10 = KES 21,708.35.
Step 7: Subtract Personal Relief to Find Net PAYE
Every resident taxpayer is entitled to statutory personal relief of KES 2,400.00 per month:
Net PAYE Due = KES 21,708.35 - KES 2,400.00 = KES 19,308.35.
Finally, your take-home net pay is computed as: Gross Pay (KES 100,000) - NSSF (KES 6,000) - SHIF (KES 2,750) - Housing Levy (KES 1,500) - Net PAYE (KES 19,308.35) = KES 70,441.65. Explore full payslip views with our net salary calculator.
Why other calculators show different numbers
A major source of confusion on the Kenyan web is that various online tools produce conflicting figures for the exact same salary. On a KES 100,000 gross salary, several legacy competitor calculators report a PAYE tax figure of KES 20,583.35 instead of the correct KES 19,308.35—a substantial overstatement of KES 1,275.00 per month.
This discrepancy occurs because older calculation scripts subtract only NSSF from gross pay, completely ignoring the tax-deductible status of SHIF and the Affordable Housing Levy. Under active KRA directives, both SHIF and employee housing levy contributions reduce taxable income, saving you money in your top tax bracket.
Adding optional deductions and relief
If you make voluntary contributions to an approved occupational pension scheme or pay qualifying health and life insurance premiums, your take-home pay increases further. Review allowable statutory limits on our reliefs and allowable deductions guide.