If your company's financial year runs January to December, circle one date: 30 September 2026. That is the deadline for filing your corporate tax return for the year ended 31 December 2025 on EmaraTax — and for most December year-end companies in the UAE, it is the first corporate tax return they have ever filed. Inside that same return also sits a fast-closing opportunity: Small Business Relief, an election that can take your corporate tax to zero if your revenue is AED 3 million or less — but only if you claim it, and only for tax periods ending on or before 31 December 2026.
Who must file by 30 September 2026 — and why this is a first
The corporate tax deadline rule is simple: the return is due within nine months of your financial year end. A financial year ending 31 December 2025 therefore means a filing deadline of 30 September 2026. Since most UAE companies run on the calendar year, this September is effectively the country's first mass corporate tax filing season.
Filing is mandatory even if you are sure you owe nothing:
- Profit under AED 375,000? You still file. The 0% band is applied inside the return, not by skipping it.
- Made a loss? You still file — and a properly filed loss can offset future taxable profits.
- Planning to claim Small Business Relief? You still file. The relief only exists as an election made inside the return.
- Free zone company? You still file, even if you believe your income qualifies for 0%.
Miss the deadline and the late filing penalty starts at AED 500 per month, rising the longer the return stays outstanding. Your exact tax period and due date are shown in your EmaraTax account — check them today, and confirm anything unusual with the FTA or a registered tax agent.
What filing on EmaraTax actually involves
Step 1: Be registered for corporate tax
Corporate tax registration is separate from VAT registration. If you have not yet registered for corporate tax, do that first — late-registration penalties stack on top of late-filing ones.
Step 2: Work out taxable income
The return starts from the accounting net profit in your financial statements, then applies adjustments — non-deductible expenses (such as fines or a portion of client entertainment), exempt income, and related-party pricing. The real work of the return is not the form itself; it is producing financial statements you can defend.
Step 3: Apply the 9% — a worked example
The rate is 0% on the first AED 375,000 of taxable income and 9% above that. Suppose taxable profit for 2025 is AED 500,000:
- First AED 375,000 at 0% = AED 0
- Remaining AED 125,000 at 9% = AED 11,250
That is an effective rate of about 2.25%. For most SMEs the tax itself is manageable — the cost is in the bookkeeping needed to reach a defensible number.
Small Business Relief: the AED 3 million election most SMEs are missing
Under Cabinet Decision 73 of 2023, a UAE resident business with revenue of AED 3 million or less — in the current tax period and in every previous one — can elect to be treated as having no taxable income at all. Corporate tax for the period: zero.
Two things make this urgent:
- It must be elected in the return. Small Business Relief is not automatic and nobody applies it for you. If you file without making the election, you are taxed under the normal rules even if you qualified.
- It is sunsetting. The relief is only available for tax periods ending on or before 31 December 2026. For a December year-end company, the 2025 return due this September and the 2026 return after it are the last chances to use it.
And the eligibility traps are real:
- Revenue means turnover, not profit. A trading company with AED 3.2 million in sales and AED 200,000 profit does not qualify.
- One breach kills it permanently. The AED 3 million test applies to every previous tax period too — cross the line once and the relief is gone for all later periods.
- Some entities are excluded, including Qualifying Free Zone Persons and members of large multinational groups.
- Electing has a cost. You cannot carry forward tax losses or excess interest deductions from a relief period.
- Splitting a business across entities to stay under AED 3 million is exactly what the anti-abuse rules target.
Full breakdown here: Small Business Relief in the UAE. Before you elect, confirm your eligibility against current FTA guidance or with a licensed tax advisor.
The records you need in place now — not in September
Whether you pay 9% or elect relief, the return must rest on real books. At minimum:
- Proper accounting records, kept for seven years. Accrual-basis financial statements are the default; cash-basis is generally only open to smaller businesses.
- Reconciled bank accounts — every dirham in and out matched to an invoice or document.
- A clean revenue figure you can prove — doubly important near the AED 3 million line.
- Supplier invoices and expense receipts filed against transactions, not in a drawer.
- Owner and related-party transactions documented — salaries, loans, and personal expenses separated from the business.
If your 2025 books are still a mix of bank statements and WhatsApp messages, the three months between now and 30 September is the time to rebuild them — not the week before the deadline.
Where software fits in
Any proper accounting system gets you most of the way: one ledger instead of scattered spreadsheets, a live profit figure instead of a year-end surprise, and an audit trail behind every number. That alone removes most of the panic from a first filing.
Xrero was built for exactly this UAE moment. Its Corporate Tax module calculates the 9% over the AED 375,000 threshold from your live ledger, supports the Small Business Relief election, and produces output shaped to the EmaraTax return fields, so the numbers you file are the numbers in your books. The AI Copilot answers questions like "what is my taxable profit so far this year?" or "am I still under AED 3 million revenue?" in English or Arabic. VAT-201 generation and bilingual invoices are part of the same system — one set of books behind every filing.
File your first return from clean books — Founding 10
Xrero costs AED 99 per user per month (AED 83 on annual billing) with a 15-day free trial — see pricing. We are also offering the Founding 10: the first 10 UAE SMEs to join get their setup done free, in exchange for a case study in month three. If your first corporate tax return is due 30 September, that is enough runway to start it on clean books. Book a demo or WhatsApp us at +971 55 776 9320.
Disclosure: Xrero is accounting software, not a licensed tax or legal advisor. Corporate tax rules, deadlines, and Small Business Relief eligibility depend on your specific circumstances — confirm with the FTA, EmaraTax, or a licensed tax agent before filing or making any election.