UAE VAT and Tax Law Updates 2026: Key Changes Explained

A comprehensive guide to the new VAT and Tax Procedures Law reforms effective 1 January 2026

On 1 October 2025, the UAE issued two significant legislative updates that reshape the country’s indirect tax framework:

• Federal Decree-Law No. 16 of 2025 – Amending the UAE VAT Law (Federal Decree-Law No. 8 of 2017)
• Federal Decree-Law No. 17 of 2025 – Amending the Tax Procedures Law (Federal Decree-Law No. 28 of 2022)

Both sets of amendments come into force on 1 January 2026 and represent one of the most consequential tax updates since VAT was introduced in 2018.

While the VAT Law amendments are targeted and procedural, the Tax Procedures Law revisions are extensive, affecting compliance timelines, refund rights, audits, and taxpayer obligations.

These changes introduces:

• New statutes of limitation for refunds and tax credits
• Expanded audit powers for the Federal Tax Authority (FTA)
• Enhanced anti-evasion provisions
• Simplification measures, including the removal of self-invoicing requirements for the reverse charge
• A one-year transitional window for resolving historic refund balances

Below is a full breakdown of the amendments and their implications for UAE businesses.

1. Amendments to the VAT Law – Federal Decree-Law No. 16 of 2025

Summary Table – Key VAT Law Changes

Key Insights – VAT Law Amendments

1. Reverse Charge Simplification

The longstanding requirement for businesses to issue a self-invoice for imported goods/services under the Reverse Charge Mechanism (RCM) is removed.

Businesses must instead:

• Retain supplier documentation
• Maintain clear audit trails for imported supplies

This reduces administrative burdens while maintaining transparency for the FTA.

2. Five-Year Limit on Excess Recoverable Input Tax

A strict five-year statute of limitations is introduced.

If excess input VAT is:

• Not refunded,
• Not offset, or
• Not utilised

Within five years, the right to claim permanently expires.

This aims to reduce old, dormant credit balances and bring certainty to the VAT recovery process.

3. Enhanced Anti-Evasion Provisions

Three new provisions significantly raise the compliance bar:

• Input tax must be denied if linked to a tax-evasion chain and the taxpayer knew about it.
• Input tax may be denied if the taxpayer reasonably should have known.
• Failure to perform supplier due diligence may be treated as constructive awareness.

This creates a shared responsibility model across the supply chain.

2. Amendments to the Tax Procedures Law – Federal Decree-Law No. 17 of 2025

The Tax Procedures Law received wide-ranging updates affecting refund timelines, voluntary disclosures, audits, and FTA powers.

Summary Table – Key Tax Procedures Law Changes

Key Insights – Tax Procedures Law Amendments

1. Uniform Five-Year Limitation Across Refunds, Credits, and Set-offs

The law now standardises a five-year cap across various tax actions performed by both:

• Taxpayers, and
• The FTA

This brings clarity but also places responsibility on businesses to monitor timelines closely.

2. Major Changes to Refund Processing

Refund claims must now be lodged within five years of the relevant tax period unless exceptional circumstances apply.
New provisions (Clauses 3–6) allow:

• Extra 1 year where credits arise from an FTA decision
• 90 additional days in other specific scenarios
• FTA obligation to issue an approval/rejection decision

Failure to comply with these timelines results in permanent loss of the right to a refund.

3. Extended Audit Windows

If a taxpayer submits a refund claim in the fifth year, the FTA gets an additional two years to audit or assess the claim.
This prevents time-barred refunds and gives the FTA breathing room to process late applications.

4. Voluntary Disclosure Simplified

VD is no longer required for every error.

• Specified errors → VD required
• All other errors → Correct directly in the tax return

This represents a significant reduction in administrative burden for taxpayers.

5. Transitional Relief – A Critical One-Year Opportunity

Taxpayers with refund claims dating back to early VAT years now have a second chance.

Businesses have until 31 December 2026 to recover VAT refunds relating to:

• 2018
• 2019
• 2020

If they miss this window, those refund rights are lost forever.

Actions UAE Businesses Must Take Before 1 January 2026

1. Immediate Review of Historical VAT Credit Balances

Prioritise tax periods 2018–2020.

Identify:

• Excess recoverable VAT
• Unsubmitted refunds
• Credits never applied

Prepare refund requests before the 31 December 2026 deadline.

2. Update Reverse Charge Mechanism Procedures

Remove self-invoice generation.

Ensure:

• Robust documentation retention
• Updated internal accounting workflows

3. Strengthen Supplier Due Diligence

Implement or enhance:

• Vendor verification (KYV)
• Supply chain integrity checks
• Invoice authenticity validation

These will be essential during FTA audits.

4. Review and Document Internal Tax Controls

Ensure compliance with:

• New statutes of limitation
• Revised refund timelines
• Updated VD correction rules

5. Prepare for Expanded Audit Powers

Maintain audit-ready documentation, especially for refund claims submitted near the end of the limitation period.

Conclusion

The 2026 amendments mark a significant evolution in the UAE tax system—bringing more explicit rules, stricter timelines, and higher compliance standards. While the reforms simplify several processes, they also impose new responsibilities, particularly around input tax recovery, supplier due diligence, and statutory limitations.

Businesses must take immediate action to avoid financial loss and ensure readiness for the updated regulatory landscape.

If you need support with refund assessments, transitional relief claims, compliance reviews, or readiness planning, our tax team is available to assist. Please get in touch with our tax team at tax@xb4.com.