Kenya’s Finance Bill 2026, tabled in Parliament on April 30, has proposed two major changes to how taxes are filed and enforced in the country. One shifts deadlines, the other hands the Kenya Revenue Authority (KRA) considerably more muscle to go after tax dodgers.
The Filing Deadline Is Moving
If the Bill passes, Kenyans will need to file their tax returns by April 30 instead of June 30, starting with the 2026 tax year, meaning the first April 30 deadline would land in 2027. That’s a two-month compression of what is currently a six-month window after the end of the calendar year.
Treasury Cabinet Secretary John Mbadi is behind the proposal, which amends Section 52 of the Income Tax Act to replace the existing 6-month filing window with a 4-month one.
There’s an added wrinkle for nil returns, which are situations where someone has no tax to pay. Under the proposed rules, those would need to be filed within just one month after year-end, putting the due date at January 31.
That’s a significant departure from the current norm where nil returns follow the same June 30 deadline as everyone else.
READ: How to File Nil Returns on WhatsApp in 2026
For companies that don’t run on a January-to-December financial year, the same four-month rule applies, just calculated from whenever their own year-end falls.
Something worth noting is that for companies, the payment deadline was already four months after year-end. The filing deadline is now being brought in line with that.
So in practice, this change matters most for individuals and companies that have been using the extra two months to file, even when the money was already due earlier.
The Bill is expected to go through public participation in May.
KRA Is Getting New Powers to Hunt Tax Avoiders
The second change is arguably more consequential. The Finance Bill 2026 proposes giving KRA the legal authority to look past the technical structure of a transaction and assess tax based on what the deal actually was, economically speaking.
READ: New Tax Rules in Finance Bill 2025 Target Online Services
The centerpiece is an anti-tax avoidance rule that lets the Commissioner General treat certain arrangements as if they never happened, specifically when those arrangements appear designed primarily to secure a tax advantage rather than serve any real commercial purpose.
If a transaction gets flagged this way, KRA can calculate tax as though the arrangement didn’t exist.
The Bill also broadens the definition of tax avoidance to cover not just schemes that reduce tax owed, but also those that inflate deductions, speed up refunds, or help someone avoid tax on goods and services.
KRA will also gain the ability to issue tax assessments without waiting for taxpayer submissions in cases where it suspects income has been underreported.
READ: KRA Is Tracking Traders Switching Till Numbers to Evade Taxes
It can draw on data from electronic tax invoices, customs inspections, audit records, and financial reporting platforms to build these assessments.
In practice, this means a taxpayer could receive a tax bill calculated entirely by KRA and would then need to respond, correct it, or formally dispute it.
To prevent abuse of these powers, the Bill requires that KRA’s assessments be grounded in verifiable data from official systems, a guardrail against arbitrary decisions.
READ: KRA Admits Tax Evaders Blacklist Punished Honest Kenyans, Orders Immediate Removal
On the enforcement timeline, KRA will have up to 5 years to revisit past transactions and issue revised assessments where avoidance schemes are identified. That’s a long window, and it signals that the taxman’s reach isn’t limited to current or recent filings.
The Bill is now with legislators and, if it clears Parliament and receives presidential assent, the changes take effect January 1, 2027.
