If you run an SME in the UAE, Corporate Tax is no longer the new thing on the horizon — it is a filing you have either already made or are about to. The rules themselves are not complicated, but the deadlines are unforgiving, and most of the penalties we see are administrative rather than substantive: a registration made late, a return filed a few weeks after the window closed, records that could not be produced on request.
This is the checklist we walk new clients through. Work down it, and you will know within an hour whether your business is in good standing.
1. Confirm you are registered — and that you were on time
Corporate Tax applies to financial years starting on or after 1 June 2023. Registration is not automatic and it is not triggered by profitability: a business with no taxable income still has to register and still has to file. Late registration carries a fixed administrative penalty of AED 10,000.
If you registered late, the penalty has in some cases been waived where the first Corporate Tax return was submitted within the relevant window. If you are carrying a late-registration penalty, it is worth checking whether you qualify rather than simply paying it.
2. Know which rate actually applies to you
| Taxable income | Rate |
|---|---|
| Up to AED 375,000 | 0% |
| Above AED 375,000 | 9% on the excess |
| Qualifying Free Zone Person — qualifying income | 0% |
| Large multinational groups (Pillar Two scope) | 15% minimum effective rate |
The AED 375,000 band is a threshold, not an allowance you lose by crossing it. A business with AED 500,000 of taxable income pays 9% on AED 125,000 — not on the whole amount.
3. Check whether Small Business Relief still covers you
Small Business Relief lets an eligible resident business elect to be treated as having no taxable income for the period. The revenue test is AED 3 million or less, and it must hold for the current tax period and every previous one — exceed it once and the relief is gone for good.
The part that catches people out: as drafted, the relief applies to tax periods ending on or before 31 December 2026. If your financial year is the calendar year, the 2026 period is the last one it covers unless the measure is extended. Plan the 2027 filing on the assumption that it will not be.
4. Put the filing deadline in the calendar now
One deadline covers both the return and the payment: nine months after the end of the tax period. A year ending 31 December 2025 must be filed and paid by 30 September 2026.
There is no separate payment date, and no instalment regime to fall back on. Late filing costs:
- AED 500 per month for the first twelve months;
- AED 1,000 per month thereafter;
- plus a late-payment charge accruing monthly at an annual rate of 14% on the unpaid tax.
5. Make sure your records would survive being asked for
Corporate Tax is self-assessed, which means the burden of proof sits with you. In practice the businesses that struggle are not the ones with complicated affairs — they are the ones whose bookkeeping was six months behind when the request arrived. You need:
- financial statements prepared on an accruals basis (with limited exceptions for smaller businesses);
- supporting documentation for every deduction claimed;
- transfer pricing documentation for related-party transactions — including domestic ones, which is the point most owner-managed groups miss;
- a clear separation between business expenses and the owner's personal spending.
6. Look at related parties before the FTA does
Transfer pricing rules apply to transactions with related parties and connected persons whether those parties are offshore or in the next emirate. Management fees between entities under common ownership, an owner's salary, rent paid to a shareholder for premises, interest on a director's loan — all need to stand up as arm's-length.
The short version
- Registered, and on time?
- Do you know your rate and your taxable income?
- Does Small Business Relief apply, and for how much longer?
- Is the nine-month deadline in the calendar?
- Could you produce supporting records this week?
- Are related-party transactions documented?
If any of those gave you pause, it is a far cheaper problem to fix now than after an assessment.
This article is general information, not tax advice, and reflects the rules as we understood them on September 2026. UAE tax legislation changes often — confirm the current position with the Federal Tax Authority or talk to us before acting on anything here.