Your First Return Is Not a Form. It Is a Set of Decisions

Guide·Updated 4 August 2026

For every UAE business with a December year end, the first full Corporate Tax filing season closes on 30 September 2026. The mechanical part, completing a return in EmaraTax, is genuinely manageable. What makes the first return different from every return after it is that several choices are made in it that cannot easily be unmade: elections that expire with the deadline, bases that stick for years, and disclosure schedules that put your related-party dealings on the record. Treat it as a set of decisions with a form attached, not the reverse.

The clock, precisely

The return is filed, and the tax paid, within nine months of the end of the tax period, through EmaraTax. Year end 31 December 2025: file and pay by 30 September 2026. Year end 31 March 2026: 31 December 2026. There is no separate payment grace period; the money is due with the return, which for a business with a real liability means the cash planning belongs in this quarter, not in the filing week. Late filing and late payment each carry their own penalties under the Corporate Tax penalty framework, and they compound monthly.

Before the numbers: the financial statements question

Taxable income starts from accounting income, so the first genuine question is whether your accounts are ready to carry a tax computation. Three tiers, under Ministerial Decision No. 82 of 2023 as amended:

The quiet trap in the first tier is the free zone one: a QFZP needs audited statements regardless of size, and audited statements are a standing condition of the 0% rate itself. A free zone entity that has never been audited and intends to claim qualifying status has an audit to commission before it has a return to file.

Annual elections and first-return decisions

• Small Business Relief. Resident businesses with revenue of AED 3 million or less may elect to be treated as having no taxable income. The relief has been extended to eligible tax periods ending on or before 31 December 2029. It is an annual election; prior-period revenue and the other conditions must also be checked. The election interacts badly with loss carry-forward: electing in a loss year wastes the loss, which is why it is a calculation, not a reflex.
• Transitional relief. Owners of pre-regime assets, qualifying immovable property above all, can elect to exclude the pre-regime portion of the gain. The election is made in the first return and, per the FTA’s framework, is effectively irrevocable; our commentary on the relief walks the mechanics. Miss it here and the pre-2025 appreciation is taxed with everything else when the asset is sold.
• Realisation basis. Whether unrealised accounting gains and losses are taxed as they accrue or when realised. The election generally belongs to the first tax period, and it determines how volatile your taxable income is for as long as you hold revaluing assets.
• Loss and grouping positions. Tax group formation, loss transfers between qualifying group companies, foreign PE exemptions: each has its own conditions, and each is far easier to take deliberately now than to retrofit.

The schedule that is really a confession: transfer pricing

The return includes a related party disclosure schedule. Per the FTA’s Corporate Tax Returns Guide, it is required once aggregate related party transactions cross the guide’s threshold, with per-category reporting above a lower level and a separate schedule for payments to connected persons, including owners and directors. Two things about it deserve respect. First, the schedule is data the FTA can mine: management fees to a sister company, interest-free balances, owner remuneration, all now structured and comparable across your filings. Second, every figure on it implicitly asserts an arm’s length position. If nothing behind the figure supports that assertion, the schedule is where the exposure becomes visible. The practical minimum for an owner-managed group is set out in our Transfer Pricing commentary, and the service page covers the full documentation tiers.

A working order against the deadline

Returns for December 2025 year ends are due 30 September 2026, a fixed point on the calendar. The sequence below is built for eight weeks. With less time, the stages compress; the order does not change.

• Weeks 1–2: Financial statements finalised, audit commissioned or completed where required. Registration and EmaraTax access verified, including who actually holds the login.
• Weeks 3–4: Elections decided on numbers, not instinct: Small Business Relief modelled against losses, transitional relief assets identified and valued, realisation basis chosen.
• Weeks 5–6: The computation: accounting income to taxable income, adjustments documented, related party schedule reconciled to the arm’s length file.
• Weeks 7–8: Review, file, pay. Filing in the final days leaves no room for the portal questions, document requests, or cash logistics that first filings generate.

Our return due date calculator gives you the exact dates from your own year end, and the tax calendar puts the CT clock alongside every other one you are running.

Common questions