What Is a Voluntary Disclosure in UAE Tax and When Must You File One?

What a Voluntary Disclosure Is Under UAE Tax Law

A voluntary disclosure is a formal notification a taxpayer submits to the Federal Tax Authority to correct an error or omission in a previously filed tax return, tax assessment, or tax refund application. It applies across VAT, Excise Tax, and Corporate Tax, and it exists as a mechanism specifically because the FTA recognizes that errors in tax filings happen — and provides a defined, structured route to correct them before they become the subject of an audit finding.

The practical significance of timing cannot be overstated: a voluntary disclosure submitted proactively, before the FTA identifies the same error independently, almost always results in a more favourable outcome than having the same correction made after an audit. Filing voluntarily signals good faith, while waiting to be caught does not.

What Changed in January 2026 — The Narrowed Voluntary Disclosure Scope

The voluntary disclosure framework changed substantially under Federal Decree-Law No. 17 of 2025, which took effect on 1 January 2026. Under the earlier framework, a voluntary disclosure was broadly required for any error or omission in a tax filing. The 2026 reform narrowed this significantly:

• Formal voluntary disclosure is now required only for material errors — errors or omissions that the FTA determines have a material effect on the tax payable or refundable
• Immaterial errors can now be corrected directly through the next tax return, without triggering the formal voluntary disclosure process
• The FTA retains the authority to issue further guidance specifying which categories of error require a formal disclosure and which can be handled through routine return adjustment

This reform reduces unnecessary compliance burden for minor errors while preserving the FTA’s oversight where it matters financially — which is, broadly speaking, the right balance. For businesses, the practical question when an error is discovered has shifted from “should I file a voluntary disclosure?” to “is this error material enough to require one?” That judgment requires a clear understanding of what materiality means in the FTA’s current framework.

Which Taxes Does Voluntary Disclosure Apply To?

Voluntary disclosure is available — and in applicable cases, required — across all three UAE tax regimes:

• VAT — where an error affects output tax charged, input tax recovered, the taxable value of a supply, or a refund application
• Excise Tax — where an error affects the amount of excise tax due, a deductible amount claimed, or the release of excise goods into the UAE market
• Corporate Tax — where an error in a filed Corporate Tax return has a material effect on taxable income or tax payable

Scenarios That Require a Voluntary Disclosure

A voluntary disclosure is required where a taxpayer discovers one of the following situations in a previously filed return or assessment:

1. A material error that understated tax payable — the return showed less tax due than should have been reported, meaning the taxpayer has paid less to the FTA than they actually owed
2. A material error that overstated a refund entitlement — a refund application claimed more than the taxpayer was actually entitled to receive
3. A material error that overstated tax payable — where the taxpayer paid more than they owed and wants the excess formally corrected on the FTA’s records
4. A material error that understated a refund entitlement — where the refund application claimed less than it should have, and the taxpayer wishes to recover the difference

The first two scenarios — understated tax and overstated refund — are the more consequential ones from a compliance perspective, since they represent positions where the taxpayer has an obligation to correct the record regardless of whether the FTA has noticed. The latter two represent errors in the taxpayer’s own favour, which a business may choose to correct through a voluntary disclosure to recover what it’s owed.

How to Submit a Voluntary Disclosure Through EmaraTax

Voluntary disclosures are submitted electronically through the FTA’s EmaraTax portal. The process follows a consistent sequence regardless of the tax type involved.

Step 1 — Identify the Return or Assessment to Be Corrected

For VAT and Excise Tax, navigate to the relevant returns section in EmaraTax and locate the specific filed period containing the error. A “Submit Voluntary Disclosure” button will appear in the relevant return row where a disclosure against that period is permitted. If the option is not available in the returns section, a disclosure may already have been submitted against that period — check the tax assessments section.

For Corporate Tax, the process flows through the Corporate Tax section of EmaraTax, where the same principle applies — locate the specific filed return and initiate the disclosure against it.

Step 2 — Complete the Disclosure Form

The voluntary disclosure form contains two sections:

• As reported — pre-populated with the figures submitted in the original return
• As current — to be completed with the corrected figures that should have been reported

The date on which the error was first identified must be entered. Where multiple errors are being disclosed simultaneously, the date of the earliest error discovery is used. Where figures are correct and no adjustment is needed for a particular line, the as-reported and as-current values will remain identical.

Step 3 — Upload Supporting Documentation and a Letter

A supporting letter must be prepared and attached to the disclosure. This letter is not optional — it is a formal requirement regardless of whether the disclosure is being submitted by an active entity or a deregistered tax group. The letter must contain:

• The background facts of the situation that led to the error
• A detailed description of each error being disclosed
• An explanation of why the voluntary disclosure is being made
• Details of the specific sections of the return affected

Supporting documents substantiating the corrected figures — invoices, contracts, reconciliations, or other evidence — should be uploaded alongside the letter.

Step 4 — Review, Sign, and Submit

Before submission, review the completed form against the supporting documentation. The declaration must be reviewed and confirmed. An incomplete form will be saved as a draft and can be retrieved and completed later. The form can also be cancelled before submission if the decision is made not to proceed.

Step 5 — Make Payment if Additional Tax Is Due

Where the voluntary disclosure identifies that additional tax is owed, payment must be made to the FTA following the portal’s payment process. The FTA may apply penalties depending on the specific circumstances of the error — the penalty treatment for a proactively filed voluntary disclosure differs from the treatment applied where the same error is discovered during an audit.

Special Rules for Tax Groups

Where a business is part of a VAT Tax Group, specific rules govern who can submit a voluntary disclosure:

• Voluntary disclosures for an active Tax Group must be submitted by the active group representative member only — other group members cannot submit disclosures independently
• Where a Tax Group has been deregistered, the last representative member can submit a disclosure covering the group’s filing history
• Non-representative group members can view submissions made to the FTA by the active representative member, but cannot initiate disclosures themselves
• The official letter requirement applies equally to Tax Group disclosures — the supporting letter must be attached regardless of whether the disclosure is submitted by an active or deregistered group

Voluntary Disclosure vs Correction Through the Next Return

Under the current framework effective from 1 January 2026, not every error requires the formal voluntary disclosure process. This is a meaningful practical distinction:

The penalty treatment is one of the strongest reasons to use the formal voluntary disclosure route for material errors: a business that corrects a material error through a voluntary disclosure before the FTA discovers it typically faces a substantially lower penalty than one whose error is uncovered during an audit. Once an audit notification has been received, the penalty benefit of a voluntary disclosure diminishes significantly.

Record-Keeping After Filing a Voluntary Disclosure

Submitted voluntary disclosures can be viewed through the tax assessments section of EmaraTax. All documentation supporting a voluntary disclosure — the letter, the supporting evidence, and the completed form — should be retained as part of the business’s tax records for the full record-keeping period: at least 5 years for VAT and Excise Tax, and 7 years for Corporate Tax.

Frequently Asked Questions (FAQs)

What is a voluntary disclosure in UAE tax?

A voluntary disclosure is a formal notification submitted to the FTA through EmaraTax to correct a material error or omission in a previously filed tax return, assessment, or refund application across VAT, Excise Tax, or Corporate Tax.

Has the voluntary disclosure process changed since 2025?

Yes. Under Federal Decree-Law No. 17 of 2025, effective 1 January 2026, formal voluntary disclosure is now limited to material errors — those with a significant effect on tax payable or refundable. Immaterial errors can be corrected through the next return without a formal disclosure.

Does voluntary disclosure apply to Corporate Tax as well as VAT?

Yes. Voluntary disclosure applies to VAT, Excise Tax, and Corporate Tax. A business that identifies a material error in a previously filed Corporate Tax return should file a formal voluntary disclosure through EmaraTax.

What is the penalty for not filing a voluntary disclosure when one is required?

The penalty for a material error discovered by the FTA during an audit is typically higher than the penalty that applies where the same error is self-reported through a voluntary disclosure. Waiting to be caught is rarely the better financial outcome.

Is a supporting letter mandatory when filing a voluntary disclosure?

Yes. A letter setting out the background facts, a description of the error, the reason for the disclosure, and the specific sections of the return affected is a mandatory attachment to every voluntary disclosure, regardless of whether the business is an active entity or a deregistered Tax Group.

Who submits the voluntary disclosure for a VAT Tax Group?

The active group representative member submits voluntary disclosures for an active Tax Group. For a deregistered Tax Group, the last representative member may submit. Other group members can view submissions but cannot initiate them.

Can I correct an error through the next VAT return instead of filing a voluntary disclosure?

For immaterial errors — those without a significant effect on tax payable or refundable — yes, correction through the next return is now the correct route under the current framework. For material errors, a formal voluntary disclosure remains required.

How Farahat & Co. Can Help

Determining whether an identified error requires a formal voluntary disclosure or can be corrected through the next return, preparing the supporting letter, and managing the submission correctly to minimise penalty exposure all require careful handling under the updated 2026 framework. Farahat & Co. supports businesses across the UAE with voluntary disclosure preparation, FTA correspondence, and broader VAT and Corporate Tax compliance.

Contact Farahat & Co. today to discuss your voluntary disclosure requirements.