Never miss a UAE tax deadline again.

How this is calculated

Corporate Tax registration

For a company licensed before 1 March 2024, the deadline depends on the month the first licence was issued, and the year is irrelevant. If you hold more than one licence, the earliest one governs. A company incorporated on or after 1 March 2024 has three months from incorporation. An individual who crosses AED 1,000,000 of business turnover in a calendar year must register by 31 March of the following year. Source: FTA Decision No. 3 of 2024, Articles 3 to 5. Late registration carries a fixed penalty of AED 10,000.

Corporate Tax return and payment

Both fall nine months after the end of the tax period, and they are the same date. There are no advance payments in the UAE system. Federal Decree-Law No. 47 of 2022, Articles 48 and 53.

VAT returns

The return must reach the FTA by the 28th day after the end of the tax period, and the money must arrive by that same date. What counts is receipt, not despatch. Executive Regulation Article 64, clauses 1 and 3. Tax periods end on the last day of a month, so a quarter ending 30 September is followed by one ending 31 December, not 30 December.

E-invoicing

Two dates, not one. Before you can issue a compliant e-invoice you must have appointed an Accredited Service Provider, and that deadline comes first. Businesses with revenue of AED 50 million or more appoint by 30 October 2026 and go live on 1 January 2027. Everyone below that threshold has until 31 March 2027 and goes live on 1 July 2027. Ministerial Decision No. 244 of 2025, Article 5, as amended by Ministerial Decision No. 66 of 2026.

Two things that catch people out. E-invoicing applies whether or not you are registered for VAT, so a small free zone company with no VAT registration is still in scope and will need a Tax Identification Number. And businesses that join voluntarily are exempt from all e-invoicing penalties, which is the strongest argument for starting early.

What this tool does not do

• It moves a VAT deadline that falls on a Saturday or Sunday to the next working day, which the FTA publishes as a rule. Corporate Tax dates are shown as they fall, because no equivalent rule is published for them. It does not know UAE public holidays, because Eid dates are set annually and depend on the moon.
• It assumes a UAE-incorporated company. A foreign company managed from the UAE, and a non-resident with a permanent establishment, run on different clocks.
• It does not tell you how much tax you owe, whether you qualify for Small Business Relief, or whether your free zone status holds. Those need your actual numbers, and the Corporate Tax calculator is the place for them.