Corporate Tax Registration Timeline in UAE

Understanding the UAE Corporate Tax Registration Timeline

Every entity classified as a Taxable Person under UAE law is required to complete corporate tax registration, a tax charged on a corporation’s net income and governed by Federal Decree-Law No. 47 of 2022, which sets out the scope, conditions, and standards of the regime. Businesses fall within Corporate Tax from the start of their first financial year beginning on or after 1 June 2023 — a single trigger date that nonetheless produces several different practical timelines, depending on when a given business’s financial year actually starts.

This guide walks through three worked examples covering the most common financial year structures, the registration deadlines that applied to businesses already operating before March 2024, and what has changed in the penalty and enforcement framework since those first filing cycles took place.

Timeline Example 1 — Financial Year 1 June 2023 to 31 May 2024

For a business whose financial year runs from 1 June to 31 May, the regime’s key dates fell as follows:

• 2022 — Corporate Tax Law published
• 1 June 2023 — Corporate Tax Law takes effect
• 1 June 2023 to 31 May 2024 — first tax period
• 1 June 2024 to 28 February 2025 — return filing period
• 28 February 2025 — return filing due date for the first tax period
• 1 June 2024 to 31 May 2025 — second tax period

This was the earliest possible financial year structure to fall within the regime, which gave businesses on this calendar the longest practical lead time to register and prepare before their first filing fell due.

Timeline Example 2 — Financial Year 1 January 2024 to 31 December 2024

For a business on the standard calendar year — by far the most common financial year structure in the UAE — the sequence runs:

• 2022 — Corporate Tax Law published
• 1 June 2023 — Corporate Tax Law takes effect
• 1 January 2024 to 31 December 2024 — first tax period
• 1 January 2025 to 30 September 2025 — return filing period
• 30 September 2025 — return filing due date for the first tax period
• 1 January 2025 to 31 December 2025 — second tax period

Businesses on this calendar have already completed their first filing cycle by the time this guide reaches them, and are now working through the same nine-month rule for their second tax period — the return for the year ending 31 December 2025 falls due by 30 September 2026.

Timeline Example 3 — Financial Year 1 April 2024 to 31 March 2025

For a business on an April-to-March financial year, the timeline runs:

• 2022 — Corporate Tax Law published
• 1 June 2023 — Corporate Tax Law takes effect
• 1 April 2024 to 31 March 2025 — first tax period
• 1 April 2025 to 31 December 2025 — return filing period
• 31 December 2025 — return filing due date for the first tax period
• 1 April 2025 to 31 March 2026 — second tax period

By this stage in the regime’s rollout, most businesses have built up real first-hand filing experience, but the underlying nine-month rule remains identical across every financial year structure — only the specific calendar dates shift to match each business’s own year-end.

Corporate Tax Registration Deadlines for Businesses Established Before March 2024

Separately from the tax period and filing timelines above, businesses already operating before 1 March 2024 followed a staggered registration schedule tied to their trade licence issuance month, regardless of the year that licence was originally issued:

These dates have now passed, which matters in one specific way: any business established before March 2024 that has still not registered is already past its deadline and exposed to the late-registration penalty regardless of how long ago the date slipped by. For businesses formed on or after 1 March 2024, the rule is simpler and ongoing rather than tied to a fixed 2024 schedule — registration is due within three months of the date of incorporation.

Consequences of Missing Corporate Tax Deadlines

Meeting the prescribed timelines for registration, filing, and payment is not a discretionary best practice — the FTA’s penalty framework is automatic, and several of its components were significantly restructured under Cabinet Decision No. 129 of 2025, effective 14 April 2026.

Late Registration

A fixed penalty of AED 10,000 applies for registering after the applicable deadline, regardless of the business’s actual tax liability. A waiver initiative allows this penalty to be avoided or refunded if the business files its first tax return or annual declaration within seven months of the end of its first tax period — a shorter window than the standard nine-month filing rule, but one that removes the AED 10,000 charge entirely for businesses that move quickly enough.

Late Filing

Filing after the nine-month deadline triggers a penalty of AED 500 per month for the first 12 months of delay, rising to AED 1,000 per month from the 13th month onward, with no upper cap. This applies even where the business has zero tax liability — a nil return filed late still accrues this penalty, since the underlying obligation is to file on time, not merely to pay on time.

Late Payment

Unpaid tax now accrues a penalty of 14% per annum, calculated monthly from the day after the payment due date, with no ceiling on the total. This flat annual rate replaced the previous daily-accrual structure as part of the April 2026 reform, and runs independently of, and in addition to, the late filing penalty — a business that both files and pays late faces both charges simultaneously, not one or the other.

Broader Consequences Beyond Direct Penalties

Beyond the fixed monetary charges above, sustained non-compliance carries consequences that compound over time:

• Loss of good standing with the FTA, which can affect a company’s broader regulatory relationships and reputation
• Increased audit and inspection risk, as non-compliant entities draw closer regulatory scrutiny than those with a clean filing history
• Legal exposure, including the possibility of licence-related consequences for persistent or severe non-compliance
• Cash flow strain, since accumulating penalties and interest reduce the funds available for reinvestment or operations

It’s also worth noting that the FTA’s enforcement capability itself has expanded. Federal Decree-Law No. 17 of 2025, effective 1 January 2026, substantially rewrote the UAE’s Tax Procedures Law, giving the FTA broader investigative powers and access to automated systems that flag non-compliance more quickly than the largely manual review processes used during the regime’s first filing cycles. Businesses that may have relied on slower enforcement in 2023 and 2024 should not assume the same pace applies going forward.

Frequently Asked Questions (FAQs)

Who is required to register for UAE Corporate Tax?

All Taxable Persons must register for UAE Corporate Tax and obtain a Corporate Tax Registration Number. Non-resident persons earning UAE-sourced income without a Permanent Establishment in the UAE are exempt from this requirement.

Is there a registration threshold for UAE Corporate Tax?

No. There is no registration threshold for UAE Corporate Tax. All Taxable Persons must register regardless of their eventual tax liability, including businesses that expect to owe no tax at all.

How do I register for UAE Corporate Tax?

Taxable Persons register electronically through the FTA’s EmaraTax portal, completing the registration form with company details and supporting documentation before receiving a Tax Registration Number.

I am already registered for VAT. Do I still need to register for Corporate Tax?

Yes. Taxable Persons must register for Corporate Tax even where they are already registered for VAT — the two registrations are entirely separate obligations under different legislation.

Do businesses with no Corporate Tax liability still need to register?

Yes. All Taxable Persons must register regardless of whether they ultimately have any Corporate Tax liability, including businesses that qualify for Small Business Relief or the 0% Qualifying Free Zone Person rate. Certain entities may apply for exemption only after registration has been completed.

What is the deadline to file a corporate tax return after the first tax period ends?

The standard deadline is nine months from the end of the relevant tax period. A business with a tax period ending 31 December 2025, for example, must file and pay any tax due by 30 September 2026.

Under what circumstances can a business deregister for Corporate Tax?

A business can apply to deregister if it ceases to conduct business or ceases to exist as a legal entity, provided all outstanding tax returns have been filed and all tax liabilities settled before the deregistration application is approved.

How Farahat & Co. Can Help

Determining exactly which tax period and filing deadline applies to a specific business — and staying ahead of a penalty framework that has itself changed significantly since the regime’s first filing cycles — takes more than a one-time check. Farahat & Co. assists businesses across the UAE with corporate tax registration, tax period determination, and ongoing compliance with the current Corporate Tax Law and its penalty framework.

Contact Farahat & Co. today to confirm your corporate tax registration and filing timeline.