Annual PAYE Reconciliation Estimator

Why annual tax due can differ from what was withheld

Your employer withholds PAYE every month by applying Kenya's standard tax bands to that month's pay, as though the same amount repeated evenly for the rest of the year. Your actual annual tax liability, though, is based on your total taxable income across all twelve months. When income isn't level throughout the year, the two figures can land apart — sometimes by a meaningful amount.

A few common situations widen that gap. A bonus paid in a single month can push that month's withholding into a higher band without any adjustment to the months around it. A mid-year raise means earlier months were withheld at the old, lower rate while later months shift up — the two don't necessarily average out to what a full year at the new salary would have produced. And income from more than one source — two employers in the same year, or a salary plus consulting income — is usually withheld separately by each payer, so the combined annual total can sit in a higher band than either payer accounted for on its own.

How the annualising estimate works

This calculator takes the annual taxable income you enter, divides it by twelve to get a monthly equivalent, applies the standard monthly PAYE bands to that figure, then multiplies the result back up by twelve. That reproduces what your tax would have been had your income arrived in twelve identical instalments — a reasonable planning estimate, but not a record of which months actually carried a bonus or a raise. It's a starting point for spotting a likely shortfall or overpayment, not a substitute for KRA's own annual reconciliation.

Worked example: KES 1,800,000 taxable income, KES 280,000 withheld

Try the calculator's own defaults: KES 1,800,000 in annual taxable income, with KES 280,000 already withheld through the year. The monthly equivalent is KES 150,000. Applying the monthly PAYE bands to that figure taxes the first KES 24,000 at 10% (KES 2,400), the next KES 8,333 at 25% (KES 2,083), and the remaining KES 117,667 at 30% (KES 35,300) — KES 39,783 in tax before relief. Subtracting the KES 2,400 personal relief leaves KES 37,383 in monthly PAYE, which annualises (×12) to an estimated annual tax due of KES 448,600. Against the KES 280,000 already withheld, that's a balance of roughly KES 168,600 that this estimate flags as still owed to KRA.

Treat that balance as a signal to check further, not a bill. The actual reconciliation happens when you file your annual return through iTax, where your exact monthly withholding history — not an evenly spread estimate — determines what you owe or can claim back.