UAE Corporate Tax Deadline: What You Need to Know Before September 30
If your business has a financial year ending 31 December, the clock is ticking. The Federal Tax Authority (FTA) has confirmed that all Taxable Persons with a 31 December 2025 year-end must file their Corporate Tax Return and pay any tax due by 30 September 2026.
That might sound like a way off, but with documentation, record-keeping and (for many businesses) a first-ever Corporate Tax filing to navigate, September will arrive faster than you think. Here's what the deadline means for you and how to make sure you're not scrambling at the last minute.
Who does this affect?
The nine-month filing window applies to every Taxable Person whose Tax Period ended on 31 December 2025. That includes:
Standard taxable businesses filing a full Corporate Tax Return
Businesses claiming Small Business Relief, who still need to file a simplified return
Exempt Persons required to register, who must submit annual declarations within the same nine-month window
In short: registration alone doesn't tick the box. Filing and payment both need to happen by the deadline, even if no tax is ultimately due.
What you actually need to do
File your Corporate Tax Return through the EmaraTax platform, which is available 24/7 either directly or via an approved Tax Agent.
Pay any Corporate Tax due by the same date — filing and payment are separate steps, so don't leave payment until the last day.
Keep your supporting records in order, including:
A record of transactions during the Tax Period
An asset register covering purchases and disposals
A record of liabilities
A record of shares or ownership interests held at year-end
These aren't just good practice — they're what the FTA uses to verify your revenue, taxable income, and eligibility for reliefs like Small Business Relief. Missing or incomplete records can trigger administrative penalties, regardless of whether any tax was actually owed.
A note for Small Business Relief claimants
Relief doesn't mean relief from admin. If you're eligible for Small Business Relief, you're still required to register for Corporate Tax, file a simplified return, and maintain the same standard of supporting documentation as any other Taxable Person. The FTA has been explicit that these obligations apply for every Tax Period, not just your first one.
Why filing early makes sense
Beyond avoiding a last-minute rush, filing ahead of the deadline gives you time to:
Resolve any gaps in your records before they become a compliance issue
Get proper advice on reliefs or exemptions you might be entitled to
Avoid the inevitable bottleneck as the deadline approaches and Tax Agents' diaries fill up
How Zyla Accountants can help
Whether you're filing your first Corporate Tax Return, claiming Small Business Relief, or simply want the peace of mind that your records will hold up to scrutiny, our team can manage the process end to end — from registration and record-keeping through to filing and payment on EmaraTax.
Get in touch before the September rush to make sure your business is ready well ahead of the 30 September deadline.