KRA Validation of Income & Expenses (Effective 1 Jan 2026)

For Kenya income tax returns (both individual and non-individual) covering the 2025 tax year (submitted via iTax), KRA will now cross-check declared revenues and costs against electronic sources. The validation regime depends heavily on electronic tax invoicing (TIMS/eTIMS), withholding tax records and customs import data. Taxpayers must ensure claimed expenses and reported income are supported by the required digital evidence or risk disallowances, interest and penalties.

 

What is changing & when it starts

• Effective date: The validation will apply from 1 January 2026, for the returns covering the 2025 tax year/accounting period and will be triggered when taxpayers submit their returns via the iTax platform.
• Primary objective: Improve accuracy of income tax filings and reduce under-reporting by matching declared figures against authoritative electronic sources.

 

Data sources KRA will use for validation

KRA will compare declared items against three principal data feeds:

1. TIMS / eTIMS: Electronic tax invoice records (including invoices transmitted with the buyer’s PIN).
2. Withholding income tax gross amounts: Data from withholding tax filings reported to KRA.
3. Customs import records: Import entries from customs systems (where applicable).

 

Role of eTIMS and invoice evidence

• eTIMS (Electronic Tax Invoice Management System) underpins the validation process. Expenses claimed for tax deductions should generally be supported by an eTIMS-compliant electronic tax invoice, transmitted with the purchaser’s PIN when the regulations require it.
• The recent regulatory amendments expanded eTIMS’ reach beyond VAT to influence Corporate Income Tax (CIT) deductibility: only expenses backed by valid eTIMS invoices will be accepted for deduction except where the law expressly provides otherwise.

 

Exceptions and non-requirements

Certain categories of expense or payment are excluded from the eTIMS-backed deductibility requirement. Examples include (though not exhaustive):

• Employee emoluments / payroll items;
• Import-related costs recorded in customs;
• Interest and certain investment allowances;
• Airline passenger ticketing;
• Payments already subject to final withholding tax;
• Internal accounting adjustments and transfers; and
• Fees charged by financial institutions.

Furthermore, KRA may, by gazettement, exempt particular taxpayers or classes of transactions.

 

Practical implications for taxpayers

• Pre-filing validation: Taxpayers need to confirm that each expense they intend to claim has an associated eTIMS-compliant invoice where required. Similarly, amounts subject to withholding tax and import data must reconcile with KRA’s records.
• Reconciliations: Undertake reconciliations between accounting ledgers and TIMS/eTIMS schedules to identify mismatches ahead of filing.
• Supplier engagement: Where suppliers are not issuing eTIMS invoices or fail to transmit with the buyer’s PIN, taxpayers should engage suppliers to rectify transmission or consider alternative substantiation only where permitted by law.
• Record retention and evidence: Keep electronic evidence and transmission references to demonstrate compliance if KRA queries a return.
• Consequences of non-compliance: Expenses lacking valid electronic invoices may be disallowed, raising taxable income and exposing taxpayers to penalties and interest.

 

Anticipated issues

• Some Govt./ public procuring entities may not consistently issue eTIMS invoices, creating downstream validation gaps for suppliers.
• Small suppliers/ SMEs may lack technical capability to generate/transmit eTIMS invoices.
• Invoice issuance dates and accounting periods may not align, causing reconciliation issues.
• Suppliers and buyers may misunderstand the PIN transmission requirement or the mechanics of eTIMS.
• Businesses with huge transaction volumes will face a higher compliance burden and administrative cost.

 

Recommended next steps

1. Request TIMS/eTIMS schedules from KRA or through your account manager to compare with your accounting records.
2. Run a pre-filing compliance review to identify expenses with missing eTIMS evidence.
3. Reconcile withholding tax and import records to amounts declared as income and deductible costs.
4. Engage suppliers that are non-compliant and secure corrected electronic transmissions (with buyer’s PIN where required).
5. Document exemptions where a particular expense falls into an excluded category under the Tax Procedures Act or related regulations.
6. Update internal procedures (AP controls, invoice receipt workflows, and accounting cut-offs) to reduce timing and matching issues.
7. Consult tax advisors to assess risk, remedial steps and potential disclosure strategies if material mismatches are discovered.

 

Support channels

• KRA contact centre channels are available for enquiries (see the KRA public notice for details). Taxpayers should also liaise with their KRA relationship or account manager for TIMS/eTIMS schedules and tailored guidance.
• Please also feel free to reach out to us for further advice in mitigating potential risks.