A tax dispute in Kenya is, in practice, a paper trial that begins long before anyone sets foot in a hearing room. This guide walks tax directors, CFOs and general counsel through how the tax appeals tribunal Kenya process actually runs — from the audit and additional assessment, through the 30-day objection window and the Commissioner’s 60-day clock, to appeal, ADR and the High Court. We focus on where matters are won and lost.
At a glance
- A valid objection under section 51 of the Tax Procedures Act 2015 must be lodged within 30 days of service of the assessment, with grounds, amendments sought and any tax not in dispute paid.
- If the Commissioner does not issue an objection decision within 60 days, the objection is deemed allowed under section 51(11) of the Tax Procedures Act 2015.
- An appeal to the Tax Appeals Tribunal lies within 30 days of the objection decision under section 13 of the Tax Appeals Tribunal Act 2013, with an extension obtainable on application made within 7 days.
- The burden of proof is on the taxpayer under section 56 of the Tax Procedures Act 2015 — the objection is your trial brief, not a holding letter.
- Collection runs in parallel with appeal; a stay is not automatic and must be pursued strategically.
The legal framework
Three statutes do most of the heavy lifting. The Tax Procedures Act 2015 (No. 29 of 2015) governs assessments, objections, time extensions and the burden of proof for income tax, VAT and excise duty matters. The Tax Appeals Tribunal Act 2013 (No. 40 of 2013) creates the Tribunal and sets the procedural spine for first-instance appeals. The Tax Appeals Tribunal (Procedure) Rules 2015 fill in the steps — memoranda, statements of facts, bundles and timelines. Substantive liability sits in the charging Acts: the Income Tax Act (Cap. 470), the VAT Act 2013 (No. 35 of 2013) and the Excise Duty Act 2015. The Finance Acts 2022 and 2023 and the Tax Laws (Amendment) Act 2024 have amended the Tax Procedures Act in several places [VERIFY: precise sections amended by Tax Laws (Amendment) Act 2024 affecting ss. 51 and 52].
The Constitution of Kenya 2010 sits over everything. Article 210 provides that no tax may be imposed except as authorised by legislation — a quiet but powerful guardrail against assessments built on policy rather than statute. Article 47 guarantees fair administrative action, which the Fair Administrative Action Act 2015 operationalises and which informs how an objection decision must be reasoned. Article 50 secures the right to a fair hearing, and the Tribunal is bound by it.
In our view, the constitutional overlay is underused. Counsel reach for it at the High Court stage when, in many matters, an Article 47 challenge to the adequacy of reasons in the objection decision could have shortened the road. The Tribunal will not strike down a statute, but it will weigh whether the Commissioner has discharged the duty to give reasons that are clear, sufficient and responsive to the grounds raised. That is a useful angle when the objection decision reads as a cut-and-paste of the assessment.
How a dispute actually moves
From audit to additional assessment
Most disputes begin with a compliance check or an in-depth audit. The Commissioner may issue a default assessment, an amended assessment or an advance assessment under sections 31 to 34 of the Tax Procedures Act 2015. Section 47 deals with the form and service of assessments. The trigger date for everything that follows is the date the assessment is served on the taxpayer, not the date it is signed or uploaded to iTax. Get the service date wrong and the 30-day clock can defeat an otherwise good case.
Before issuing the assessment, the Commissioner will usually share preliminary findings or a notice of intention. Engage at this stage. Once the assessment crystallises, the dispute becomes adversarial, the burden shifts, and your room to reframe the facts narrows.
The 30-day objection window
Section 51 of the Tax Procedures Act 2015 gives the taxpayer 30 days from service to lodge a notice of objection. The objection must state precisely the grounds, the amendments sought and the reasons for those amendments. Any tax not in dispute must be paid, or arrangements satisfactory to the Commissioner agreed. An objection that fails these gates is invalid — and an invalid objection does not stop the 30-day clock.
Extensions are possible under section 79 on application showing reasonable cause. The Commissioner may also vary or waive penalties or interest under section 80 in defined circumstances, though this is a discretion, not a right. Lodge well inside the 30 days. Late objections are a self-inflicted wound and the most common reason corporates lose otherwise winnable cases.
The 60-day Commissioner clock and the deemed-allowance
Section 52 of the Tax Procedures Act 2015 requires the Commissioner to make an objection decision — allowing the objection in whole or in part, or disallowing it — within 60 days of receipt of a valid objection. Where the Commissioner does not do so, section 51(11) provides that the objection is deemed allowed. This is not theoretical. We have seen the deemed-allowance argument carry the day where the Commissioner missed the deadline by days, sometimes by hours.
Two practical points. First, calendar the 60 days from the date of a valid objection — diary it for both sides. Second, watch for “requests for further information” used to reset or pause the clock. The Tribunal has been sceptical of attempts to convert routine queries into time-stopping events. In our view, only a genuine, specific, and material request — properly issued and tied to identified information gaps — should affect the clock, and even then the burden should be on the Commissioner to show why.
Appeal to the Tribunal
Section 13 of the Tax Appeals Tribunal Act 2013 gives a 30-day window from service of the objection decision to lodge a notice of appeal. The Tax Appeals Tribunal (Procedure) Rules 2015 then prescribe the documents — memorandum of appeal, statement of facts, the objection decision and the statement of the tax decision appealed against — and the timelines for the Commissioner’s response and the appellant’s reply. Extension of time is available on application made within 7 days of the expiry of the 30-day window.
The Tribunal sits in Nairobi with periodic circuits. It is a specialist body, not a court, but its procedures are court-like and its decisions are reasoned and citable. Practical tip: prepare the bundle as if for a Judge — paginated, indexed, and cross-referenced to the grounds. A bench that can navigate the evidence quickly is a bench that can find for you on the merits.
Onward appeals to the High Court and beyond
A party dissatisfied with a Tribunal decision may appeal to the High Court on points of law. Further appeals lie to the Court of Appeal, and ultimately the Supreme Court where constitutional questions arise. The High Court will not retry the facts; it will scrutinise the legal analysis, the reasoning and the procedural fairness of the proceedings below. That makes the Tribunal record decisive. If a point was not pleaded or evidenced at the Tribunal, it is very hard to revive it on appeal.
Analysis: where cases are won and lost
The objection IS the trial brief — burden of proof
Section 56 of the Tax Procedures Act 2015 places the burden of proof squarely on the taxpayer to show the assessment is excessive or wrong. That single rule reshapes everything. The objection is not a holding letter; it is your opening statement, your statement of facts and your closing — all in one document. Plead the grounds with precision. Annex the documents. Quantify the amendments sought line by line. If a ground is not raised at objection, the Commissioner will say you cannot raise it on appeal, and the Tribunal will often agree.
Documentary discipline — invoices, ledgers, board minutes, transfer pricing files
VAT input disputes turn on tax invoices that meet the statutory descriptors. Corporation tax disputes turn on ledgers that reconcile to the trial balance and to the return. Withholding tax disputes turn on contracts, residency certificates and proof of payment. Transfer pricing disputes turn on the master file, the local file and credible benchmarking. Customs valuation disputes turn on purchase orders, freight invoices and INCOTERMS.
Worked hypothetical. A manufacturer claims KES 48 million of input VAT on capital equipment imported in 2024. The KRA audit disallows on the basis that the supplier’s ETR receipts do not match the import documentation, and the board minutes authorising the acquisition reference a different supplier entity. At objection, the taxpayer produces (a) the original commercial invoice, (b) the entry, (c) proof of payment to the invoicing entity, (d) a written explanation reconciling the two supplier names (parent and subsidiary in the same group) and (e) a corrected board minute confirming the original authorisation. With a clean reconciliation memorandum tying the documents together, the input claim is allowable. Without item (d), the input is lost — not because the law is against the taxpayer, but because the burden has not been discharged.
Stay applications and the collection-runs-in-parallel problem
Lodging an objection or an appeal does not, by itself, stop enforcement. The Commissioner may proceed with collection — agency notices to banks, deduction from refunds, distress, travel restrictions in serious cases. A stay must be applied for, and the Tribunal and the courts approach stay applications on familiar principles: arguable case, irreparable harm, balance of convenience. In our view, stay applications work best when the taxpayer offers a credible part-payment or bank guarantee covering the undisputed component. A stay request that asks the Tribunal to pause everything while the taxpayer pays nothing is a difficult sell.
ADR — when settlement is the right answer
The Commissioner’s Alternative Dispute Resolution Framework allows for facilitated discussions, usually after objection but before or during appeal, with the aim of a binding settlement. ADR is not appropriate for every matter — disputes that turn on a pure point of statutory interpretation, or that have precedent value, often belong at the Tribunal. But for fact-heavy matters with significant reconciliation work, ADR can compress months of preparation into structured sessions and a documented agreement. Pick the cases carefully. ADR with a thin evidence base behind you is just slow capitulation.
Transfer pricing and customs valuation — the role of expert evidence
Transfer pricing matters demand a benchmarking study, a tested party analysis and an honest engagement with the arm’s length principle. The Commentary to the OECD Model Tax Convention, and the OECD Transfer Pricing Guidelines, remain authoritative interpretive aids in DTA cases and in the application of section 18 of the Income Tax Act and the Income Tax (Transfer Pricing) Rules 2006 [VERIFY: current TP rules version following any amendments since May 2025]. Customs valuation cases, by contrast, lean on the WTO Valuation Agreement and the Commissioner’s customs valuation methodology. In both, expert evidence — a transfer pricing economist or a customs valuation specialist — is often decisive. Lead the expert evidence early and ensure it sits in the bundle, not behind it.
Costs realities
The Tribunal has limited power to award costs, and orders are modest. Budget the dispute as a full P&L line: external counsel, expert fees, internal time, the cash drag on disputed amounts paid under protest and the financing cost of any bank guarantee. A KES 300 million dispute that runs from objection to High Court will typically consume 18 to 30 months of senior finance and legal time. Decide early which battles justify that investment and which are candidates for settlement.
What you should do now
For finance and tax functions
Keep a live disputes register with service dates, objection deadlines, the 60-day Commissioner clock and the appeal window. Audit your documentation policy against the four pillars above — invoices, ledgers, board minutes, transfer pricing. Run a quarterly reconciliation between the GL, the returns and the iTax ledger. Where you identify exposures, document the technical position contemporaneously. A memo written when the transaction happens carries more weight than one written after the assessment arrives.
For taxpayers in receipt of an assessment
Read the assessment in full on the day you receive it. Confirm the service date, calendar the 30-day deadline and convene a working session with tax, finance and legal within 5 working days. Pay any tax not in dispute, or apply for a payment arrangement. Brief external counsel early so the objection is the trial brief, not a draft that needs rewriting on appeal.
For taxpayers awaiting an objection decision
Calendar the Commissioner’s 60-day clock. Track every communication from the Commissioner and assess whether any purports to stop or reset the clock. If the deadline passes without a decision, do not assume the Commissioner will accept the deemed-allowance — be prepared to assert it firmly, in writing, and to defend it at the Tribunal if necessary.
For taxpayers considering appeal
Decide within the first 7 days whether ADR is realistic. If not, draft the memorandum of appeal and statement of facts in parallel with the notice. The statement of facts will be the document the Tribunal returns to most often; treat it accordingly. Consider whether a stay application is needed, and what part-payment or guarantee you can credibly offer.
Frequently asked questions
Q: When does the 30-day objection clock start?
A: On the date the assessment is served on the taxpayer under section 47 of the Tax Procedures Act 2015. Internal upload dates or signature dates are not the trigger. Confirm the service date in writing where there is any doubt, because the 30 days is strict and rarely extended.
Q: Can the Commissioner ignore the 60-day deadline?
A: No. Section 51(11) of the Tax Procedures Act 2015 provides that an objection is deemed allowed if the Commissioner does not make a decision within 60 days of receiving a valid objection. The Tribunal has been receptive to deemed-allowance arguments where the timeline is missed.
Q: Does an appeal stop KRA collecting the tax?
A: Not automatically. Collection runs in parallel. A stay must be applied for and the Tribunal weighs arguable case, irreparable harm and balance of convenience. Offering part-payment of undisputed amounts or a bank guarantee materially improves the chances of a stay.
Q: Is ADR available at any stage of the dispute?
A: Under the Commissioner’s Alternative Dispute Resolution Framework, ADR is typically engaged after objection. It can run during an appeal with the Tribunal’s awareness. ADR is most useful for fact-heavy matters; pure interpretation cases usually belong at the Tribunal for precedent.
Q: Where does a Tribunal decision go next?
A: A dissatisfied party appeals to the High Court on points of law within the statutory window, then to the Court of Appeal and ultimately the Supreme Court on constitutional questions. The factual record at the Tribunal is generally final, which is why the Tribunal hearing is treated as the trial.
How OLM Law can help
OLM Law Advocates LLP’s tax practice supports listed and private corporates through the full arc of a Kenyan tax dispute — pre-assessment engagement, objection drafting, Tribunal advocacy, ADR negotiation, stay applications and appeals to the High Court. We act alongside in-house tax teams to keep the technical work tight and the strategic decisions clear. To discuss a live matter or a contingent exposure, contact [PARTNER NAME], Partner, Tax, or your usual OLM Law contact.
Sources and authorities
- Constitution of Kenya 2010, Articles 47, 50 and 210
- Tax Procedures Act 2015 (No. 29 of 2015), in particular sections 31–34, 47, 51, 51(11), 52, 56, 79 and 80
- Tax Appeals Tribunal Act 2013 (No. 40 of 2013), in particular section 13
- Tax Appeals Tribunal (Procedure) Rules 2015
- Income Tax Act (Cap. 470), in particular section 18
- VAT Act 2013 (No. 35 of 2013)
- Excise Duty Act 2015
- Finance Act 2022; Finance Act 2023; Tax Laws (Amendment) Act 2024 [VERIFY: specific TPA amendments]
- Income Tax (Transfer Pricing) Rules 2006 [VERIFY: any amendments since May 2025]
- Fair Administrative Action Act 2015
- Kenya Revenue Authority, Alternative Dispute Resolution Framework (Commissioner’s published framework)
- OECD Model Tax Convention on Income and on Capital, Commentary (for DTA interpretation)
- OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations
Disclaimer: This article is general commentary on Kenyan tax procedure as at 4 June 2026 and is not legal advice. Specific matters require specific advice. No solicitor-client relationship arises from reading this article.
