Most Kenyan tax calculators online are either outdated, incomplete, or quietly wrong in ways users only discover when KRA sends them a surprise assessment. We've seen calculators that still apply the old 3% TOT rate, use the repealed AHL relief, miss the February 2026 NSSF increase, or round aggressively to make the "landed cost" look smaller than it really is.
Kadiria exists because the KRA rules are already complicated enough — you shouldn't have to cross-check three different websites before trusting a number. Our goal is to be the calculator you can use without double-checking.
Every calculator on Kadiria is reviewed against primary sources — the Finance Act currently in force, KRA public notices, and the Commissioner's prescribed rates. When these conflict with secondary sources (payroll blogs, advisory firm summaries), we treat KRA as authoritative and note the discrepancy.
We re-verify every calculator's rates against its sources on the following schedule:
Tax writing on the web is riddled with copy-paste — one site publishes a stale rate, a dozen others reproduce it, and Google happily ranks all of them. We read the primary text, paraphrase in our own words, and note the source when a rate is contested or recently changed.
Every calculator on Kadiria produces a line-by-line breakdown, not just a final number. That way, if your employer's payslip or a clearing agent's quote differs from our output, you can see exactly where the divergence is — usually a relief you forgot to claim or an excise band you didn't realise applied.
Where a calculation depends on figures that vary (exchange rates, CRSP lookups, depreciation assumptions, clearing costs), we say so clearly and pad reasonable defaults. The Car Budget calculator in particular warns users that actual landed cost can vary 5–10% from its estimate depending on CRSP and current clearing rates.
Kadiria is not a tax advisor, not a clearing agent, and not affiliated with KRA, NSSF, SHA, or any other government body. Nothing on this site is legal or financial advice. Our calculators are planning tools — they help you budget, negotiate, and understand your payslip. For binding assessments, you need a registered tax practitioner or a direct ruling from KRA.
If you spot a rate that doesn't match your P9, your iTax filing, or a recent KRA notice — we want to know. Email corrections@kadiria.co.ke with a link to the page, the rate you think is wrong, and (if possible) a source we should cross-check against. We read every correction and respond within 48 hours. If you're right, we fix it publicly and credit you.