Why Bonuses Require Special Attention
Annual bonuses are a common way for employers to reward staff, but they are frequently processed incorrectly from a PAYE perspective. The most common error is applying the employee's standard monthly PAYE rate to the bonus, which almost always results in under-deduction and subsequent penalties.
Correct PAYE Treatment for Bonuses
Under the Income Tax Act (Cap 470), bonuses are employment income and must be taxed using the annual income method — not the simple monthly rate method.
Step-by-step process:
- Calculate the employee's projected annual taxable income including the bonus
- Compute the annual PAYE on the total projected income using the annual tax bands
- Subtract PAYE already deducted year-to-date
- Deduct the balance from the bonus payment
This approach ensures the correct amount of tax is withheld in the month the bonus is paid.
NSSF and Housing Levy on Bonuses
- NSSF Tier I and Tier II — contributions are calculated on pensionable pay, which typically excludes bonuses unless your scheme rules specify otherwise. Review your scheme deed before processing.
- Affordable Housing Levy — the 1.5% levy applies to gross pay including bonuses. Ensure both employee and employer contributions are remitted by the 9th of the following month.
Common Mistakes to Avoid
| Mistake | Consequence | |---|---| | Using standard monthly tax rate | Under-deduction, penalties on employer | | Forgetting housing levy on bonus | Compliance gap, interest charges | | Delaying iTax remittance past 9th | 5% penalty plus 2% monthly interest | | Failing to include in P9 form | Employee disputes, audit queries |
Need Help with Your December Payroll?
Our payroll team manages end-of-year bonus payroll for dozens of clients annually. Contact us by the 15th of November to ensure your December payroll is processed correctly and on time.