This Kenya pension calculator projects your retirement pot from NSSF and voluntary contributions, then estimates a sustainable monthly income.
How it works
Each month you contribute a percentage of your pensionable pay. The mandatory NSSF rate is 12% in total — 6% from you and 6% from your employer — and you can add voluntary top-ups on top.
The tool compounds every monthly contribution to your retirement age:
- Salary grows each year at your salary-inflation rate, so contributions rise with it.
- The accumulated pot grows each month at your chosen fund-growth rate.
At retirement the projected pot is multiplied by a sustainable withdrawal rate (default 4% a year) and divided by 12 to estimate a monthly retirement income that can last.
Example
A 30-year-old earning KES 80,000/month, contributing 12% (6% + 6%) plus a 6% voluntary top-up, with 8% fund growth and 5% salary growth, retiring at 60, builds a substantial pot over 30 years of compounding. Raising the voluntary rate or the growth assumption visibly increases the final pot.
Notes
- Pension contributions are tax-deductible up to KES 30,000 a month, so voluntary top-ups also cut your PAYE.
- The 4% withdrawal rule is a planning rule of thumb, not a guarantee — sequence-of-returns risk matters in practice.
- Real-terms outcomes depend on whether your growth rate beats inflation; set growth net of fees for a realistic figure.