UAE Corporate Tax is calculated on taxable income, which begins with accounting net profit prepared under acceptable accounting standards and then applies a series of adjustments. Businesses that assume the two figures are the same are usually surprised, and occasionally unpleasantly.
Expenditure that is not deductible
Deductions generally require expenditure incurred wholly and exclusively for the business, and not capital in nature. Common add-backs include:
- Entertainment costs, which are typically only partially deductible
- Fines and penalties
- Donations to bodies that are not qualifying public benefit entities
- Personal expenditure routed through the company, which is more common in owner-managed businesses than anyone admits
- Dividends and profit distributions
Interest
Net interest expenditure is subject to limitation rules. Highly leveraged businesses, and those funded by shareholder loans, can find that a real cash cost is not fully deductible in the period it is incurred. If your structure relies on related party debt, this is worth modelling before the return rather than discovering in it.
Related party transactions
Transactions with related parties and connected persons must meet the arm length standard, with documentation to support it. Payments to owners and their relatives, management fees between group companies and intra-group recharges all fall in scope. An informal arrangement that was never priced is a transfer pricing exposure once Corporate Tax applies.
Timing differences
Provisions, accruals for costs not yet crystallised, and unrealised gains and losses can all move income between periods for tax purposes. These usually reverse over time, but they change the figure in any single return, which is the figure you pay on.
Losses
Tax losses can generally be carried forward and offset against future taxable income, subject to conditions including continuity of ownership and limits on how much of a period income can be sheltered. Note the interaction with Small Business Relief: electing relief in a loss-making period means the loss is not preserved.
Why the bookkeeping decides the difficulty
Every adjustment above depends on being able to identify the underlying transactions. If entertainment sits inside a general expenses account, if shareholder drawings are mixed with business costs, if related party balances have never been reconciled, then the adjustment work becomes forensic. Where the chart of accounts was built with this in mind, it is a review.
See Corporate Tax filing for how we handle the computation.
General guidance, not advice on a specific business. Figures here were checked against published sources in September 2026; UAE tax rules change frequently, so confirm current Federal Tax Authority and Ministry of Finance guidance, or ask us to review your position, before acting.