The legal framework
Kenya's arm's length rule sits in Section 18(3) of the Income Tax Act (Cap 470): where business between a resident and a related non-resident — or between a non-resident's Kenyan permanent establishment and its head office — produces less than an arm's length profit, the Commissioner adjusts to the profit independent dealing would have generated. The rule is operationalised by the Income Tax (Transfer Pricing) Rules, 2006 (Legal Notice No. 67 of 2006), enacted in the aftermath of Unilever Kenya Ltd v Commissioner of Income Tax [2005] KEHC 3176, where the High Court found for the taxpayer precisely because no domestic pricing guidance existed and endorsed reference to the OECD Guidelines.
That history explains the Guidelines' status in Kenya: no binding legal force, but where the domestic framework is silent — which is often — courts and the Kenya Revenue Authority treat OECD and UN guidance as the interpretive default. Scope has since widened: Section 18A extends arm's length treatment to dealings with related persons in preferential tax regimes, and relatedness is defined through participation in management, control or capital by the 'related person' definition in Section 2 (Section 18(6), which previously carried it, was deleted by the Finance Act 2025 with effect from 1 July 2025), including through a common third party or family connection. Kenya does not apply the Authorised OECD Approach to permanent establishments; a PE is instead a separate entity whose dealings with its head office must themselves be priced at arm's length under Sections 18(3) and 18(5). Alongside all of this runs the BEPS Action 4 interest cap: deductions on loans from non-residents are disallowed above 30% of EBITDA.
Methods, comparables and the arm's length range
Rule 7 of the 2006 Rules prescribes the five OECD methods — CUP, resale price, cost plus, profit split and TNMM — plus a sixth: any other method the Commissioner may prescribe where none of the five can establish the arm's length price. Selection follows the most appropriate method standard with no hierarchy, but method choice is genuinely contested territory: in AVIC International Beijing (EA) Ltd (Tax Appeals Tribunal, November 2024) the Tribunal held that the taxpayer had erred in selecting the resale price method and upheld the Commissioner's TNMM for marketing and distribution operations.
Comparability analysis follows Chapter III of the OECD Guidelines because the domestic rules say little. There is no preference for domestic comparables — Kenya has few — so regional and pan-African database sets are standard on both sides, and KRA itself runs commercial databases. Secret comparables are off the table, a position Kenya grounds in Article 47(2) of the Constitution's guarantee of fair administrative action. The interquartile range is accepted, and the Tribunal's 2025 Cipla decision confirmed that KRA cannot force an adjustment to the median where the tested margin already falls within the range. Note the gaps: no domestic guidance on intangibles, intra-group services, financial transactions or commodities, no simplified approach for low value-adding services, and no safe harbours — though cost contribution arrangements are recognised on Chapter VIII principles.
Documentation: what Kenya Revenue Authority expects
The Finance Act 2022 rebuilt Kenya's documentation regime around the OECD's three tiers, inserting Sections 18B to 18F of the Income Tax Act with effect for the 2022 year of income onward. The country-by-country report applies to MNE groups with gross turnover of KES 95 billion (roughly EUR 750 million): notification is due by the last day of the reporting financial year, the CbC report twelve months after year-end, and the master file and local file six months after year-end.
Two practical wrinkles matter. First, the KES 95 billion threshold is attached by statute only to the CbC obligation; Section 18D(3) imposes the master and local files on 'an ultimate parent entity or a constituent entity' without restating the threshold, and Kenya's own OECD-profile answer exempts sub-threshold groups only from notification and CbC filing — the prudent reading is that every Kenyan member of an MNE group prepares both files. Second, disclosure has moved into the return itself: since 2023 the IT2C corporation tax return on iTax requires companies with related-party transactions to complete a dedicated disclosure sheet. Records may be kept in English or Kiswahili, denominated in shillings, and retained five years. There is no statutory production deadline for TP documentation; KRA request letters typically allow fourteen to twenty-one days, so 'upon request' under the 2006 Rules should be read as 'already prepared'.
Audits and enforcement
Enforcement has moved decisively. KRA's international tax office has grown from a handful of officers to around forty, works with commercial benchmarking databases, and increasingly cross-checks positions against eTIMS electronic invoicing data. Audit attention concentrates on intra-group services, royalties and IP licensing, intercompany loans and commodity trading.
There are no TP-specific penalties; the general Tax Procedures Act applies, and its numbers bite. Failure to keep required documentation costs 10% of the tax payable for the period, or KES 100,000 where none is payable (Section 82); failure to file a required document runs at KES 1,000 per day capped at KES 50,000; and offences under Section 18E for the CbC tier attract the general sanction of a fine up to KES 1 million and/or three years' imprisonment. A deliberately false or misleading statement carries a 75% shortfall penalty under Section 84 — the old 20% general tier was repealed in 2019 and still circulates in outdated summaries. Two structural exposures deserve emphasis: any upward TP adjustment is deemed a dividend to the non-resident shareholder and attracts withholding tax under Section 7(b)(v) of the Income Tax Act, and the Commissioner's five-year amendment window under Tax Procedures Act Section 31(4) becomes unlimited for fraud or wilful neglect. Beta Healthcare (Tribunal, 2024) shows the evidential stakes: KRA's internal CUPs prevailed because the taxpayer could not substantiate its own TNMM benchmarking.
Dispute resolution and advance certainty
The domestic route runs from a notice of objection within thirty days of the assessment (Tax Procedures Act Section 51) to the Tax Appeals Tribunal, then to the High Court and Court of Appeal, each on thirty-day clocks. The Tribunal has become a genuine transfer pricing forum, deciding method selection, benchmarking and range disputes on their merits — and not reflexively for the revenue, as Cipla demonstrates. Treaty relief runs in parallel: KRA published Mutual Agreement Procedure guidelines in late 2024, with a three-year window from notification of the offending action, and MAP remains available even for litigated cases. Unilateral downward corresponding adjustments are also possible without a MAP under Tax Procedures Act Section 31.
The headline change is advance certainty. The Finance Act 2025 introduced Section 18G of the Income Tax Act, effective 1 January 2026, allowing APAs with the Commissioner for up to five years, voidable for misrepresentation. Draft regulations published in November 2025 contemplate unilateral, bilateral and multilateral APAs, a KES 5 million application fee, pre-filing consultation twelve months ahead, annual compliance reports and roll-back — though final regulations had not been confirmed gazetted as of mid-2026.
Pillar Two and what changes in 2026
Kenya enacted a domestic minimum top-up tax through the Tax Laws (Amendment) Act, 2024, effective 1 January 2025, topping up to a 15% effective rate for groups with consolidated revenue of at least EUR 750 million in two of the previous four years. That population is essentially the CbC-filing population, which raises the consistency stakes: CbC reports, master and local files and top-up computations now describe the same groups to the same authority, and mismatches will be visible.
Three files remain open. The revised Transfer Pricing Rules — drafted in 2023 to replace the 2006 Rules and extend coverage to financial transactions, insurance, derivatives, cost contribution arrangements and business restructurings — still await gazettement, so the 2006 Rules remain the law. The APA regulations are pending in final form. And Amount B remains under evaluation, with Kenya uncommitted both on adoption and on respecting other jurisdictions' outcomes.
How practitioners should respond
Four disciplines follow. First, prepare documentation to litigation standard, not filing standard: the recent Tribunal cases were won and lost on benchmarking evidence, and a fourteen-day production window leaves no room to build a file after the request arrives. Second, treat method and tested-party selection as defensible choices to be reasoned in the local file, because KRA actively contests both. Third, quantify the full cost of an adjustment — primary tax, 75% shortfall exposure where statements are challenged as misleading, deemed-dividend withholding, and interest — before deciding whether to settle or fight; the range jurisprudence gives well-benchmarked taxpayers real leverage. Fourth, for groups with material loans, royalties or service flows into Kenya, model an APA application early: the regime is new, the fee is significant, and pre-filing consultation must precede the covered period by a year — but five years of certainty against this enforcement climate will often be cheap.
