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# UAE Corporate Tax: Every Downward Adjustment Needs an Evidence Trail

Author: Shahaab Ikram | Category: Corporate Tax | Read Time: 4 min

A lower taxable income figure is not automatically a problem. UAE Corporate Tax rules require businesses to move from accounting profit to taxable income through specific tax adjustments, and some of those adjustments reduce the amount subject to tax. The risk begins when a downward adjustment appears in the return without a clear explanation, calculation and supporting records.

The Federal Tax Authority (FTA) published a public clarification on 15 July 2026 covering downward adjustments made by a Taxable Person in a Corporate Tax return to comply with the Corporate Tax Law. For finance teams, the practical message is simple: a tax adjustment should be treated as a documented workpaper, not as a plug inserted at filing time.

## Start with the accounting figure

The adjustment file should begin with the financial statements or final trial balance used for the return. Keep a clear bridge from accounting profit to taxable income. Each downward item should have a description, amount, legal or technical basis, and a reference to the relevant ledger accounts or source documents.

This helps separate genuine tax adjustments from errors in the accounting records. It also makes review easier when the return contains several items, such as exempt income, income treated under a different tax rule, or deductions that are permitted only after specific conditions are met.

## Do not confuse an accounting entry with a tax deduction

An expense may be recorded correctly in the accounts but still require a tax adjustment. Conversely, an amount that is not presented as a normal expense may affect the tax computation under the Corporate Tax rules. The return should therefore not be prepared by copying ledger totals into tax fields without a tax review.

For every downward adjustment, ask three questions: What is the underlying transaction? Which rule supports the adjustment? What evidence would allow another reviewer to reproduce the calculation? If the answer to any of these is unclear, the item needs investigation before submission.

## Build a review pack before filing

A useful review pack includes the tax computation, general ledger extract, trial balance, reconciliation schedules and copies of relevant agreements, invoices, statements or calculations. Label each adjustment so the amount in the return can be traced back to the supporting file. Where an adjustment depends on a percentage, allocation or valuation, preserve the formula and the underlying data.

The person reviewing the return should also check that the same item has not been adjusted twice, that the tax period is correct and that reversals or prior-period adjustments have been considered. This control is especially important when a business uses spreadsheets alongside accounting software.

## The practical standard

A downward adjustment is defensible when it is accurate, consistent with the Corporate Tax Law and supported by records retained by the business. It is risky when it is unexplained, rounded without a calculation or unsupported by the underlying transaction file.

Before submitting a UAE Corporate Tax return, review every reduction from accounting profit as if the FTA had selected that line for examination. A short explanation and a well-organised workpaper can turn a difficult query into a straightforward reconciliation.

**Sources:** Federal Tax Authority, “Downward adjustments made by a Taxable Person in the Tax Return to comply with the Corporate Tax Law,” public clarification issued 15 July 2026; FTA, Corporate Tax Returns Guide; UAE Corporate Tax Law and related executive guidance. This article is general information, not tax or legal advice.