A Kenyan VAT dispute is usually won or lost transaction by transaction. The return total is only the end of the chain. The real questions are what was supplied, when and where it was supplied, which VAT treatment applied on that date, who issued the invoice, whether the transaction occurred, how it entered the ledger and whether input tax was claimed within the statutory conditions. A useful response to KRA therefore reconstructs the supply chain rather than arguing from a single monthly balance.

Freeze the VAT period before investigating it

Download the filed VAT return, auto-populated return data, sales and purchase listings, taxpayer ledger, assessment and all audit correspondence for each disputed month. Preserve the native exports as well as PDFs. Record the return version, extraction date and person who accessed the system. Do not overwrite the original workbook while trying to reconcile it.

Create a period control sheet with output tax declared, input tax claimed, withholding VAT credits, payments, credit carried forward and KRA’s adjustments. Reconcile that sheet to the general ledger and financial statements. A difference between iTax, eTIMS and the ledger should be identified before documents are sent to KRA; otherwise explanations may change as new mismatches emerge.

Classify the contested supply using the law applicable then

Section 5 of the Value Added Tax Act establishes the charge to tax, while the schedules identify exempt and zero-rated supplies. Classification must be tested against the exact goods or services and the legislative version in force during the transaction. A current exemption cannot simply be applied to an earlier period, and a commercial label on an invoice does not decide the statutory character of a bundled supply.

Start with the contract and actual performance. Identify the supplier, recipient, deliverable, consideration, location, delivery or completion event and any ancillary component. Then ask whether the supply is taxable, zero-rated, exempt or outside the Kenyan charge. If several elements were sold together, explain why they form one composite supply or separate supplies and how the price was allocated.

Time of supply can move VAT between months

Section 12 of the VAT Act governs the time of supply. Compare the invoice date, delivery or performance, payment, certificate of work and any other statutory trigger. A dispute described as “undeclared sales” may actually concern a timing difference between months; equally, moving an invoice date cannot change when the statutory tax point occurred.

Prepare a chronology for long contracts, deposits, milestone billing, continuous services, returned goods and cancellations. Show the amount attached to each event. If KRA has taxed the same supply in two periods, demonstrate the duplication with invoice, return and ledger references instead of merely stating that turnover was double-counted.

Reconcile output VAT from source transaction to return

Build a sales table containing invoice number, eTIMS identifier, customer PIN where applicable, description, net value, VAT rate or status, tax amount, invoice date, tax-point date, ledger code and return period. Add credit notes and reversals as separate linked rows. Test sequence gaps and duplicate invoice numbers rather than deleting them from the working file.

KRA issue	Evidence needed	Common hidden cause
sales exceed return	invoice-to-ledger-to-return bridge	timing, duplicate feed or exempt income included in comparison
wrong VAT status	contract, product specification and schedule provision	commercial description does not match statutory classification
unreported credit note	original invoice, reason, receipt and accounting entry	credit posted without linking the original supply
bank deposits treated as sales	bank narration and source-by-source reconciliation	loan, capital, transfer or tax-inclusive amount mistaken for turnover

Where KRA relies on bank deposits, reconcile every material deposit to sales, transfers, financing, capital, refunds or other source. Do not use a balancing figure called “non-sales” without the underlying records. The VAT analysis should also state whether amounts are tax-inclusive or exclusive.

An invoice is necessary evidence, not the entire input-tax case

Section 17 governs deduction of input tax. Test each claim against the statutory conditions: the purchaser’s registration and taxable activity, the nature and use of the acquisition, the prescribed document, the claim period and any restriction or apportionment rule. KRA’s 12 February 2024 public notice on simplified VAT filing states that input claims should be supported by valid TIMS/eTIMS tax invoices or applicable customs import declarations.

A system-validated invoice does not by itself prove that goods or services were supplied to the claimant for taxable business use. Match it to the contract or order, delivery note or service output, goods-received record, payment, supplier statement and ledger entry. For imports, use the customs entry, import VAT payment, shipping records and inventory receipt. Explain differences in supplier name, PIN, currency, quantity or date rather than silently editing data.

Investigate supplier mismatches without manufacturing proof

Where an invoice is missing from auto-populated data, verify that the supplier used the correct purchaser PIN and transmitted the invoice. Preserve correspondence asking the supplier to correct a genuine error. Do not ask for a backdated invoice, a fictitious cancellation or replacement of a transaction that never happened.

If the supplier is inactive, deregistered or cannot be located, establish the status on the transaction date and preserve evidence of actual supply. Analyse the statutory requirements and the precise reason KRA gave for disallowance. A buyer’s payment and possession may be important facts, but they should not be presented as automatically curing a missing statutory condition.

Check the claim period and blocked inputs

Section 17 includes timing and category limits. Record when input tax became due and payable, the first return in which it could be claimed and the return in which it was actually claimed. Do not group an old invoice into the current period merely because it was found during audit. If KRA alleges that the claim was late, show the statutory calculation and portal history.

Review whether the expenditure falls within a restricted category, relates to exempt supplies or has private or non-business use. The correct response may be full allowance, partial apportionment or no deduction. A defensible schedule identifies the use of each acquisition rather than describing all expenses as overhead.

Mixed businesses need an explainable apportionment

A business making both taxable and exempt supplies must classify direct inputs first. Costs solely attributable to taxable supplies, solely attributable to exempt supplies and genuine common costs should not be thrown into one ratio. Apply the section 17 apportionment rules to the appropriate common pool and show the numerator, denominator and period.

Keep the revenue mapping behind the ratio. If one-off asset sales, grants, foreign transactions or pass-through amounts were included or excluded, state the reason. Test whether annual or later adjustment is required under the applicable rule. An unexplained percentage copied from the prior year is weak evidence.

Credit notes, bad debts and refunds are separate routes

A credit note corrects or reverses an earlier supply; it should identify the original invoice and genuine commercial event. VAT bad-debt relief under section 31 has its own conditions and current time limits. Excess-input refunds under section 17 also depend on the statutory category and filing period. Do not treat all three as interchangeable ways to reduce a VAT balance.

For a bad debt, preserve the invoice, accounting write-off, collection history, insolvency or recovery evidence and later receipts. For a refund, reconcile the claimed amount to each qualifying period and ensure the supporting input has not also been carried forward or used elsewhere. Check amendments in force at the claim date, including the Finance Act 2025 changes reflected in the current consolidation.

Withholding VAT requires three-way reconciliation

Reconcile the supplier’s invoice and output VAT, the appointed withholding agent’s certificate or system record, and the taxpayer ledger credit. A withholding credit does not erase the need to declare the underlying supply correctly. Where the credit is missing, identify whether the error lies in the customer PIN, period, invoice reference or remittance.

Do not net unmatched credits against unrelated output tax without an auditable bridge. Prepare a certificate-level schedule and separate credits disputed because of timing from those never remitted or wrongly attributed.

Turn the investigation into objection grounds

For every KRA adjustment, state the disputed figure, taxpayer figure, statutory provision, factual explanation and indexed evidence. The response should allow another person to reproduce the return. If the assessment is already issued, section 51 of the Tax Procedures Act generally requires a valid objection within thirty days of notification. Use the KRA demand response guide to protect that deadline.

Separate a system correction request from the formal objection. Portal support correspondence may fix a mismatched invoice or ledger entry, but it should not be assumed to suspend the objection period. Keep proof of filing and address the undisputed amount as the statute requires.

Evidence pack for a VAT dispute

• assessment, audit workings, return and taxpayer ledger for every month;
• output and input transaction listings with eTIMS references;
• general ledger, trial balance and financial-statement reconciliation;
• contracts, orders, invoices, delivery or service evidence and payment;
• customs entries, import VAT proof and inventory receipt records;
• credit notes linked to original invoices and return periods;
• mixed-supply allocation and apportionment workings;
• withholding VAT certificate-level reconciliation;
• supplier correction correspondence and portal screenshots;
• objection, indexed exhibits, acknowledgement and KRA responses.

For an adverse objection decision, the tax appeals guide explains the Tribunal gateway. A live Tribunal matter may also require a separate litigation plan, but the transaction schedule built at the VAT stage should remain the core evidence.

Questions to answer before proposing settlement

1. Which supplies or inputs remain legally disputed?
2. Which adjustments are only timing or data-matching errors?
3. Which claims fail because a statutory document or period cannot be proved?
4. What revised VAT, penalty and interest follows month by month?
5. How will agreed credits, payments and refunds appear on the taxpayer ledger?

A settlement schedule should not use one net number to hide different legal outcomes. Define the treatment of each period, invoice population, penalty, interest, payment date and ledger correction. Continue filing current VAT returns while the historical dispute is pending; the KRA PIN and compliance guide addresses ongoing registration and filing controls.

Official Kenyan sources

• Value Added Tax Act, 2013: charge, classification, place and time of supply, input deductions, refunds, bad debts and invoicing.
• Tax Procedures Act, 2015: records, assessments, objections, appeals, penalties and tax administration.
• KRA public notice on simplified VAT return filing: support of input claims through valid TIMS/eTIMS invoices and customs declarations.
• KRA VAT guidance: official administrative information on VAT registration, returns and common compliance questions.

Facing a KRA VAT assessment? Request a period, transaction and input-tax evidence review. Provide the assessment, VAT return exports and transaction listings. This page is general information; the applicable treatment depends on the supply, date and law in force for the disputed period.

Frequently asked questions

Is an eTIMS invoice enough to prove a Kenyan input VAT claim?

Not by itself. The invoice must satisfy the statutory document requirements, but the taxpayer should also prove that the supply occurred, was acquired by the claimant, was used for taxable business activity, was recorded in the correct period and is not restricted. Contracts, delivery or service evidence, payment and ledger records complete the chain.

What should a taxpayer do when a supplier invoice is missing from the VAT auto-populated return?

Verify the purchaser PIN, invoice identifier, transmission and transaction date, preserve the system evidence and ask the supplier to correct a genuine error. Do not obtain a backdated or fictitious invoice. If an assessment has been issued, protect the objection deadline separately because portal support correspondence may not suspend it.

How do you challenge KRA when bank deposits are treated as VAT sales?

Reconcile each material deposit to the source: taxable supply, transfer, loan, capital, refund or other receipt. Link taxable receipts to invoices, tax points and returns, state whether amounts are VAT-inclusive, and support non-sales items with bank narration, agreements and accounting entries rather than one unexplained balancing figure.