When preparing a corporate tax return in the UAE, businesses start with their net profit as per accounting standards. However, the amount on which tax is eventually calculated—taxable profit—can be markedly different from this figure. Specific tax adjustments are required, and missteps are common, especially for growing businesses encountering the new regime for the first time.

The starting point: accounting net profit

The calculation always begins with accounting net profit for the relevant period, as shown in the business's financial statements. These statements must be prepared in line with the accounting standards specified in UAE Ministerial Decision No. 114 of 2023. Under that decision, a business must use IFRS, but one with revenue of AED 50 million or less may use IFRS for SMEs, and one with revenue of AED 3 million or less may prepare its financial statements on a cash basis. These financial statements are the foundation for further tax adjustments.

Adjustments to arrive at taxable income

Accounting profit is not the end of the story. The UAE corporate tax law prescribes additional steps—some to add back income or expenses, others to deduct or exempt certain amounts. Frequently overlooked areas include:

Exempt income

Some types of income are specifically exempt from UAE corporate tax. For instance, dividends received from other UAE resident companies are excluded. Income from a "participating interest"—an ownership interest meeting requirements under Article 23 of the law—may also qualify for exemption. In each such case, the exempt income must be deducted from the accounting profit when determining taxable profit.

Example: If a business has AED 1,000,000 of accounting profit, but this includes AED 200,000 in dividends from a resident subsidiary, that AED 200,000 is excluded from taxable profit.

Non-deductible expenses

Certain expenses that might be recognised for accounting purposes are not allowable for tax.

For example:

  • Fines and penalties are not deductible, other than amounts awarded as compensation for damages or breach of contract.
  • Donations, grants or gifts are generally not deductible unless given to a qualifying public benefit entity.
  • Bribes and other illegal payments are expressly non-deductible.

All such expenses must be added back to accounting profit when calculating taxable profit.

Limits on entertainment expenses

Only 50% of the cost of entertaining customers, shareholders, suppliers or other business partners (such as meals, accommodation, transport and admission fees) can be deducted. If a company accounts for AED 100,000 of such entertainment in its profit and loss account, only AED 50,000 is deductible. The remaining AED 50,000 must be added back when determining taxable profit.

Interest deduction limitations

There are both general and specific rules restricting how much interest a business can deduct for tax purposes.

  • Where net interest expense (interest expense minus interest income) exceeds AED 12 million in a 12-month tax period, the deduction is limited to the higher of AED 12 million and 30% of adjusted EBITDA (Earnings Before Interest, Taxes, Depreciation, and Amortisation). Interest above this cap is not deductible in the current year, but may be carried forward and deducted in the next ten tax periods, subject to the same limit.
  • The limit does not apply to banks, insurance providers or natural persons doing business in the UAE.

If net interest expense is AED 300,000 and 30% of adjusted EBITDA is AED 200,000, the limit does not apply, because net interest expense is below AED 12 million. If net interest expense is AED 15 million and 30% of adjusted EBITDA is AED 10 million, AED 12 million is deductible and the other AED 3 million may be carried forward.

Provisions and impairment losses

A provision for bad debts recorded in the financial statements under IFRS or IFRS for SMEs is deductible, as long as it meets the general rules for deducting expenses. If the provision is later released or reversed, the amount credited is taxable. A provision for an expense that is not deductible, such as a fine, must be added back. When a bad debt previously written off is subsequently recovered, the amount recovered must be included as taxable income in that period.

Unrealised gains and losses

Unless the business elects the realisation basis, unrealised gains and losses reported in its financial statements are included in taxable income. This includes gains and losses that will never pass through the income statement, such as some items in other comprehensive income. A business that prepares its financial statements on an accrual basis may instead elect to count gains and losses only when they are realised, either for all assets and liabilities subject to fair value or impairment accounting, or for all those held on capital account; banks and insurance providers may only choose the second. The choice, including a choice not to elect, is made in the first tax period and cannot be changed except in exceptional circumstances with FTA approval.

Prior-period and non-business items

Income and expenses relating to prior periods, which may be restated as per accounting standards, can trigger further adjustments. Likewise, expenses not incurred for the purposes of the business, and losses not connected with it, are not deductible.

Common areas where mistakes occur

Many businesses, especially those new to corporate tax, get caught out by:

  • Failing to adjust for exempt dividend income and participating interest exemption.
  • Deducting full entertainment costs instead of limiting to 50%.
  • Not applying the general interest deduction limitation, especially in leveraged businesses.
  • Claiming deductions for fines or charitable donations to non-qualifying entities.
  • Failing to add back provisions for expenses that are not deductible, such as fines.

Putting it together: how the calculation looks

The overall process for many businesses involves these steps:

  1. Start with accounting net profit (from financial statements).
  2. Deduct exempt income (e.g., qualifying dividends).
  3. Add back non-deductible expenses (e.g., penalties, non-qualifying donations).
  4. Apply limits to entertainment and interest deductions.
  5. Adjust for provisions for non-deductible expenses, unrealised gains/losses, and any prior-period or non-business items as required.

Businesses are expected to keep clear documentation and must be able to show the basis of all adjustments if queried by the FTA.

Tax rates and the threshold

After determining taxable profit, the relevant rate is applied:

  • 0% on taxable profit up to AED 375,000.
  • 9% on taxable profit above AED 375,000.

Large multinational groups may also be subject to a Top-up Tax, so that their effective tax rate is 15%.

These rates—and the adjustments described above—are the core of what bridges accounting profit and taxable profit under UAE corporate tax law. For all but the smallest business, these adjustments are critical to getting the final tax computation correct.