Corporate Tax Registration Deadlines for Existing UAE Companies (Including Free Zones at 0%)

If your UAE company existed on 1 March 2024, your corporate tax registration deadline was set by the calendar month your trade licence was issued, and every one of those deadlines fell in 2024 (FTA). Free zone companies taxed at 0% are not exempt: registration is still mandatory. If you missed your date, there is a defined route back to zero penalty, and this post walks you through it.

Bottom Line

• Almost every UAE company must register for corporate tax, including free zone companies that pay 0% (FTA Free Zone Persons guide).
• For companies that existed on 1 March 2024, the deadline depended on the MONTH your licence was issued, not the year (FTA).
• Late registration carries a flat AED 10,000 penalty (Ministry of Finance).
• The penalty is waived, or refunded, if you file your first return within 7 months of your first tax period ending (FTA).
• The 0% and 9% rates apply either side of AED 375,000 of taxable income (u.ae).

The one thing every existing company owner needs to know

Registration is mandatory, and it is separate from paying tax. Even if your company owes nothing, you still have to be on the register. The rate is a rate. It is not a pass on the paperwork.

For companies already trading on 1 March 2024, the Federal Tax Authority set deadlines by the month your trade licence was issued, under FTA Decision No.3 of 2024 (FTA). All of those deadlines have now passed. So the practical question for most owners is simple: did you register on time, and if not, are you inside the penalty-waiver window?

Miss the deadline and there is a flat AED 10,000 administrative penalty (Ministry of Finance). That sounds alarming, but there is a clear, defined path to get it waived, covered further down. This post gives you the deadline table, the free-zone rule, the waiver mechanics, and a short checklist to run this week. For the wider picture of what falls due and when, see our owner's compliance calendar.

Your registration deadline

Your deadline was decided by the month your trade licence was issued, regardless of the year of issue (FTA). A licence issued in any January still pointed to the same deadline whether it was issued in 2019 or 2023. Here is the full table.

Source: Federal Tax Authority, Decision No.3 of 2024.

Two details trip owners up. First, if you hold more than one licence, the earliest-issued licence sets your deadline (FTA). Second, an expired licence that you held on 1 March 2024 still counts toward that date. So dig out your oldest licence, not just the current one.

Companies set up on or after 1 March 2024 follow a different clock. They must register within three months of incorporation, establishment or recognition (FTA). Same three-month rule applies to a resident company that held no licence at all on 1 March 2024.

Do free zone companies at 0% still have to register

Yes. The 0% rate for a Qualifying Free Zone Person is a tax rate, not an exemption from registration. The FTA's Free Zone Persons guide states plainly that all Free Zone Persons must register for corporate tax through EmaraTax and file annual returns, even when the tax due is zero (FTA).

This is the single most common misunderstanding we see from free zone owners. You have always paid nothing, so you assume there is nothing to do. In reality the 0% is a benefit you have to claim and keep, and claiming it starts with being registered and filing.

To keep the 0% on your qualifying income, you have to meet every Qualifying Free Zone Person condition: adequate substance in the free zone, income that actually qualifies, staying within the de minimis limit, arm's length pricing, audited financial statements, and no election to be taxed as a mainland business (FTA).

The de minimis test

The de minimis test is where good 0% status quietly slips away. Your non-qualifying revenue must stay under the lower of 5% of total revenue or AED 5 million (Cabinet Decision No.100 of 2023). Cross that line and you can lose Qualifying Free Zone Person status.

Non-qualifying income that falls within the limit is still taxed at 9% (FTA). So a free zone company can pay 0% on some income and 9% on the rest in the same year. It pays to know which bucket your revenue lands in before you file.

If you missed the deadline

If you missed your registration deadline, there is still a way back. The AED 10,000 penalty can be waived, or refunded if you already paid it, provided you file your first Tax Return or Annual Declaration within 7 months of the end of your first tax period, instead of the usual 9 (FTA).

The waiver is automatic. You do not need to submit a reconsideration request or plead your case (FTA). File early enough and the penalty simply falls away. If you had already paid the AED 10,000, it comes back to you. The relief applies to your first tax period only, so this is a one-time chance to reset the clock.

Does the waiver actually work? It does. By 29 July 2025, more than 33,900 taxable persons had already benefited from the waiver initiative, and the FTA expected the figure to climb toward 91,000 (FTA). For calendar-year businesses whose first tax period was January to December 2024, the practical cut-off to benefit was 31 July 2025 (FTA). That date is behind us, but the waiver is tied to your own first tax period, not a single fixed calendar date. If your first tax period is more recent, your 7-month window may still be open, so check your own dates before you assume you have missed it.

What you actually pay once registered

Most UAE companies pay little or nothing. The standard rates are 0% on taxable income up to AED 375,000 and 9% on taxable income above that, under Federal Decree-Law No.47 of 2022 (u.ae). Registration is the obligation. The actual bill depends on your income and the reliefs you qualify for.

Small Business Relief is the one most existing owners should check. A business with revenue up to AED 3,000,000 can elect to be treated as having no taxable income, with simplified filing (Ministry of Finance, Ministerial Decision No.73 of 2023). That means no tax for the period, but you still register and file to claim it. We cover who qualifies in our guide to Small Business Relief.

Two further points sit outside the small-company norm. A natural person running a sole establishment must register only if business turnover topped AED 1,000,000 in a calendar year; for 2024 turnover, that registration deadline was 31 March 2025 (FTA). And the 15% Domestic Minimum Top-up Tax applies only to very large multinational groups with consolidated global revenue of at least EUR 750 million, for financial years starting on or after 1 January 2025 (EY, Cabinet Decision No.142 of 2024). It does not touch ordinary UAE companies.

One clarification worth making, because the wrong law circulates online. The 2025 corporate-tax amendment is Federal Decree-Law No.28 of 2025, which deals with tax credits, incentives and refund mechanisms (KPMG). Decree-Law No.20 of 2025 is the Commercial Companies Law, not a corporate-tax registration rule. If a provider cites No.20/2025 for a tax deadline, they have the wrong reference.

What to do this week

Start with your licence date, because it tells you everything. Pull your oldest trade licence, note the issue month, and match it against the table above to confirm whether you registered on time. If you hold several licences, use the earliest one.

If you are not yet registered, do it now on EmaraTax and plan to file your first return within 7 months of your first tax period ending, so you chase the automatic penalty waiver. If you run a free zone company, confirm your Qualifying Free Zone Person conditions and your de minimis position before you file, so your 0% claim holds up.

This is exactly the kind of standing task our ongoing admin service is built for: one company record you can open of your filings and deadlines, real human operators you can name, and no paperwork ever withheld. If corporate tax is only one of several dates you are juggling, our compliance calendar lays out the full year, and our ESR explainer covers what still applies there.

Frequently asked questions

My free zone company pays 0% corporate tax. Do I still need to register?

Yes. The 0% rate for a Qualifying Free Zone Person is a tax rate, not a registration exemption. The FTA's Free Zone Persons guide is clear that all Free Zone Persons must register for corporate tax through EmaraTax and file annual returns, even when the tax due is zero (FTA).

How was my deadline decided if my company existed before March 2024?

Under FTA Decision No.3 of 2024, the deadline was set by the calendar month your trade licence was issued, regardless of the year. A licence issued in any January or February had to register by 31 May 2024, and a December licence by 31 December 2024. If you hold more than one licence, the earliest-issued one sets the deadline (FTA).

What is the penalty for registering late, and can it be waived?

The penalty for late corporate tax registration is AED 10,000 (Ministry of Finance). The FTA ran a waiver initiative: if you file your first return or annual declaration within 7 months of the end of your first tax period, the penalty is waived automatically, and refunded if you already paid it. The window is set by your own first tax period, so for calendar-year businesses whose first period was 2024 the practical cut-off was 31 July 2025, while a more recent first period may still leave your window open (FTA).

I run a sole establishment, not a company. Do the same rules apply?

Natural persons conducting business register only if total turnover exceeds AED 1,000,000 in a calendar year. If your 2024 turnover crossed that line, the registration deadline was 31 March 2025 (FTA). Below AED 1 million from business activity, registration is not required.

Does the new 15% tax mean my small UAE company now pays 15%?

No. The 15% Domestic Minimum Top-up Tax applies only to very large multinational groups with consolidated global revenue of at least EUR 750 million, for financial years starting on or after 1 January 2025 (EY). Ordinary UAE companies stay on the 0% and 9% system, and free zone qualifying income stays at 0%.

Not sure whether you registered on time or where you stand on the waiver? Book a call and we will check your licence date, your filing status and your options together.