If your business closed its books on 31 December 2025, your Corporate Tax return and payment are due by 30 September 2026 — nine months after the end of your tax period. Because most UAE SMEs run on a calendar-year financial year, this single date affects an unusually large share of the country’s taxpayers at once. Here’s a practical, no-fluff checklist to get filed correctly and on time.
Who Actually Has a September 30 Deadline?
This deadline applies specifically to taxable persons whose tax period (financial year) ended on 31 December 2025. If your company’s financial year ends in March, June, or any other month, your nine-month filing and payment window falls on a different date — don’t assume this deadline applies to you without checking your own tax period end date on EmaraTax.
What You Need Ready Before You File
- Your Corporate Tax TRN and EmaraTax login credentials
- Finalised financial statements for the tax period (profit and loss, balance sheet)
- Adjustments from accounting profit to taxable income — disallowed expenses, exempt income, and any transitional adjustments
- Confirmation of any elections made, such as Small Business Relief (available where revenue is below AED 3 million)
- Related-party and connected-person transaction disclosures, if applicable
- Transfer pricing documentation, if your business meets the relevant thresholds
Common Last-Minute Mistakes to Avoid
- Filing based on unadjusted accounting profit instead of properly calculated taxable income
- Missing a Small Business Relief election when the business actually qualifies
- Forgetting to disclose related-party transactions, even when no tax is ultimately due on them
- Confusing the registration deadline with the filing deadline — these are separate obligations with separate penalties
- Leaving payment to the very last day, when EmaraTax processing or bank transfer timing can push you past the cut-off
What Happens If You Can’t File in Time
Late filing and late payment are penalised separately, and the numbers add up faster than most business owners expect — a recurring monthly filing penalty plus interest on any unpaid tax. If you’re at real risk of missing the deadline, filing the return even without full payment is almost always better than doing neither, since it stops the filing penalty clock even if interest continues to accrue on the unpaid balance.
A Same-Week Action Plan
- Day 1: Gather finalised financial statements and your EmaraTax login details
- Day 2: Reconcile disallowed expenses and exempt income with your accountant
- Day 3–4: Prepare and review the draft return, including any elections and disclosures
- Day 5: Submit via EmaraTax and process payment, keeping confirmation records
- Before 30 September: Do a final check that both filing and payment have gone through — not just one of the two
FAQs
What is the UAE corporate tax deadline for 2026?
For businesses whose tax period ended 31 December 2025, the corporate tax return and payment are both due by 30 September 2026 — nine months after the end of the tax period.
What happens if I miss the September 30 deadline?
You’ll face a recurring late filing penalty plus interest on any unpaid tax. The exact figures are set out in our full penalty breakdown.
Is corporate tax registration the same as filing?
No. Registration generally has its own earlier deadline (typically within three months of incorporation), while filing and payment are due nine months after your tax period ends. They are penalised separately.
Can I request an extension from the FTA?
The FTA does not generally grant blanket extensions. If you’re at risk of missing the deadline, it’s best to file what you can on time and speak to an advisor immediately rather than wait.
