Regulatory Updates

UAE VAT Statute of Limitations 2026: When Can (and Cannot) the FTA Audit or Assess Your Business

Clipboard with a blank form and a pen, representing UAE VAT audit and tax assessment records

10 min read

Published: 16 August 2026

Quick Answer

Under UAE Federal Decree-Law No. 28 of 2022 on Tax Procedures, the Federal Tax Authority (FTA) generally cannot open a tax audit or issue a tax assessment for a VAT period once 5 years have passed from the end of that period. That window extends to 15 years if the FTA proves tax evasion, or if a business never registered for VAT when it should have. A voluntary disclosure filed near the end of year 5 can also push the deadline out by one further year. Since 1 January 2026, amendments under Federal Decree-Law No. 17 of 2025 confirmed and tightened these extended periods, and added a separate 5-year deadline for claiming old VAT refund credits.

Why This Matters for UAE Businesses

Every VAT-registered business in the UAE eventually asks the same question: how far back can the FTA actually go? The answer decides how long you need to keep invoices, contracts, and bank records, and it decides whether an old VAT period you assumed was closed can still be reopened. Getting this wrong in either direction is costly. Destroy records too early and you cannot defend an assessment the FTA is still legally allowed to raise. Assume you are exposed forever and you waste storage, compliance time, and peace of mind on periods that are already legally closed.

This guide sets out the exact limitation periods in the Tax Procedures Law, what triggers the longer 15-year window, how voluntary disclosure interacts with the clock, and how long you must keep records under UAE law.

The Standard Rule: 5 Years From the End of the Tax Period

Article 42 of Federal Decree-Law No. 28 of 2022 on Tax Procedures sets the general rule: the FTA may not conduct a tax audit or issue a tax assessment after five years from the end of the relevant tax period.

This means the clock does not start on the date you filed the return. It starts on the last day of the VAT period itself.

Example: For a VAT period ending 31 March 2021, the standard 5-year limitation runs out on 31 March 2026. After that date, the FTA cannot open a fresh audit or raise a new assessment for that specific period, unless one of the extended-period triggers below applies.

One important distinction: the statute of limitations governs when the FTA can start an audit or assessment, not whether an already-notified tax debt disappears. Under Article 43, any payable tax or administrative penalty that the FTA has properly notified you about within the applicable window does not expire simply because time passes afterward. The debt still has to be paid or formally resolved.

The Extended 15-Year Window: Tax Evasion and Non-Registration

The 5-year rule does not apply in two serious situations, where the FTA gets a much longer 15-year period instead.

1. Tax evasion

If the FTA proves tax evasion, it may conduct a tax audit or issue a tax assessment within 15 years from the end of the tax period in which the evasion occurred. Under Article 25 of the Tax Procedures Law, tax evasion includes deliberately providing false information to reduce a tax liability, deliberately failing to submit a required tax return to avoid payment, and deliberately concealing information that should have been disclosed to the FTA. This is treated as a criminal matter, not just an administrative one, and the FTA can refer suspected evasion cases to the public prosecution separately from the audit and assessment process.

2. Failure to register for VAT

If a business should have registered for VAT but never did, the FTA may audit or assess it within 15 years from the date the business should have registered. This is a common trap for businesses that crossed the mandatory AED 375,000 registration threshold without realizing it, or that deliberately delayed registration. Not registering does not make old liabilities disappear. It extends the FTA’s reach by a decade beyond the normal rule.

Why this matters more from 1 January 2026

Federal Decree-Law No. 17 of 2025 amended the Tax Procedures Law with effect from 1 January 2026, reinforcing that the 15-year extended period applies squarely to tax evasion and non-registration cases, closing ambiguity that previously existed about how these extended periods were applied in practice. For any business that has an unregistered period, an undisclosed liability, or a dispute over whether a return was accurate, this is not a legacy risk. It is now a clearly confirmed, long-tail exposure under current law.

Voluntary Disclosure Can Extend the Clock

If a taxable person submits a voluntary disclosure within the 5th year from the end of the relevant tax period, the FTA’s limitation period is extended by one additional year from the date of that disclosure, specifically so the FTA has time to review it.

There is a hard outer boundary here too: no voluntary disclosure can be submitted at all once 5 years have passed from the end of the relevant tax period, except under the narrow transitional refund rules described below. If you discover an error in an old VAT return, the practical message is simple: disclose it before the 5-year mark, not after, or you may lose the ability to correct it voluntarily at all.

New Since 1 January 2026: A 5-Year Deadline on VAT Refund Credits

Alongside the audit and assessment changes, the 2025 amendments introduced a separate and easily missed rule: unused VAT credit balances now lapse if no action is taken within 5 years. Previously, businesses could carry forward excess input VAT credits indefinitely without a hard deadline to claim a refund or use them.

Transitional relief (until 31 December 2026 only): businesses that already have a refund or credit balance sitting unused for more than 5 years from the relevant tax period may still apply to claim a refund or offset it against liabilities and penalties, but the application must be submitted within one year of the law’s effective date, meaning by 31 December 2026. For these specific transitional refund applications, the FTA may audit or assess the claim within 2 years from the date of submission, a shorter and separate window from the standard 5 or 15-year rules above.

If your business has been sitting on an old, unclaimed VAT credit balance, this transitional window is the one to act on before the year is out.

How Long Must You Keep VAT Records?

The statute of limitations and your record-retention obligation are two different rules that need to line up. As a general practice under UAE tax law, businesses should retain VAT-relevant records, invoices, contracts, import and export documentation, and accounting books for at least 5 years from the end of the tax period they relate to, matching the standard audit window. Businesses involved in real estate related activities are typically expected to retain relevant records for longer, given the extended nature of property transactions and related VAT treatment.

Given the 15-year extended window for tax evasion and non-registration, the safer practical position for any business with a history of registration gaps, corrected filings, or disputed positions is to retain the underlying supporting records well beyond the standard 5 years, since a period that looks closed on paper is not actually closed if one of the extended triggers applies.

What This Means in Practice

If your VAT period ended more than 5 years ago, and there is no tax evasion allegation and you were correctly registered throughout, that period is normally closed to a fresh FTA audit or assessment.
If you have any unregistered period, treat that period as open for up to 15 years from the date registration should have happened, not 5.
If you suspect an error in an old return, check whether you are still inside the 5-year voluntary disclosure window before it closes.
If you have an old unused VAT credit, check the balance now. The new 5-year lapse rule and the 31 December 2026 transitional deadline both apply regardless of how the credit arose.
Keep records for at least 5 years as a floor, and longer wherever a registration gap, dispute, or correction makes the extended 15-year window realistically relevant.

Frequently Asked Questions

Does the 5-year limitation start from the return filing date or the tax period end date?
It starts from the end of the relevant tax period, not the date the return was filed or the date any payment was made.

Can the FTA audit a VAT period from 2019 in 2026?
Only if one of the extended triggers applies, such as proven tax evasion or a failure to register that should have happened during or before that period. Otherwise, a standard 2019 period is past the 5-year window by 2026.

What counts as tax evasion under UAE tax law?
Under Article 25 of the Tax Procedures Law, tax evasion covers deliberately providing false information to reduce tax owed, deliberately failing to file returns to avoid payment, and deliberately concealing information that should have been disclosed to the FTA.

Does a voluntary disclosure always add a year to the limitation period?
Only if it is filed within the 5th year from the end of the relevant tax period. A voluntary disclosure cannot be filed at all after the standard 5-year window closes, except under the narrow 2026 transitional refund rules.

What happens if I never registered for VAT even though I should have?
The FTA can audit and assess your business for that unregistered period for up to 15 years from the date you should have registered, not the standard 5 years.

Does the statute of limitations erase a VAT debt the FTA already notified me about?
No. Once the FTA has properly notified you of a payable tax or penalty within the applicable limitation window, that debt does not lapse with time. The statute of limitations only governs when the FTA can start the audit or assessment process.

What is the new 5-year rule for VAT refund credits?
Since 1 January 2026, unused VAT credit balances lapse if you take no action to claim or offset them within 5 years. A one-year transitional window, open until 31 December 2026, lets businesses with older unclaimed credits still apply.

How long should my business keep VAT records?
At least 5 years from the end of the relevant tax period as a baseline, longer for real estate related records, and longer still in practice if a registration gap or disputed filing means the extended 15-year window could realistically apply.

Is the 15-year window new, or has it always applied?
The extended period for tax evasion and non-registration existed in principle before 2026, but Federal Decree-Law No. 17 of 2025 confirmed and reinforced how it applies, effective 1 January 2026.

Where can I check the exact status of my VAT filing history with the FTA?
Through your EmaraTax account, or by working with a licensed tax consultant who can review your filing and registration history against these limitation rules.

Need Help Reviewing Your VAT Exposure?

If you are unsure whether an old VAT period is still open to FTA audit, or whether your business has an unregistered gap that extends your exposure to 15 years, Qaspro Global can review your filing and registration history and advise on the correct position. Reach out on WhatsApp: +971 55 153 9679.

This article is for general information and does not replace formal advice from a licensed UAE tax agent. Verify your specific position against the Federal Tax Authority’s official guidance or EmaraTax records before taking action.

Written by Muhammad Qasim FCCA
Founder & CEO, Qaspro Global — UAE tax expert with 16+ years of experience in VAT, corporate tax and FTA audit support.