Voluntary Disclosure in the UAE

The Tax Procedures Law defines it in one line, and the definition does more work than it looks. A voluntary disclosure is "a form prepared by the Authority pursuant to which a Taxpayer notifies the Authority of an error or omission in the Tax Return, Tax Assessment or Tax refund application, in accordance with the provisions of Article 10 of this Decree-Law". That is the definitions article of Federal Decree-Law No. 28 of 2022, read in the consolidated text published to Federal Decree-Law No. 17 of 2025.

Three things follow from that one sentence. It is a form, not a letter: you cannot make a disclosure by emailing an explanation to the Federal Tax Authority, and there is no free-text route. It is filed against a specific document — a return, an assessment or a refund application — and therefore against a specific tax period, not against a year or a company in general. And it is a notification, not a request: nothing in Article 10 asks the FTA to agree to anything, and nothing in it gives the FTA a discretion to accept or refuse the disclosure as such.

Article 10 has four operative scenarios and the verb changes between them. Two say shall and two say may, and the dividing line is direction of error: if the mistake went in the FTA's favour you have a choice, and if it went in yours you do not.

The asymmetry is deliberate and worth stating plainly, because a common misreading is that any error must be disclosed. It need not. An error that overstated your payable tax, or understated a refund you were entitled to, leaves you free to file or to leave it. What is not optional is an understatement of tax or an overstatement of a refund.

Business days are not working days as an accounting team usually means them. The Tax Procedures Law defines a business day as any day of the week except weekends and official holidays of the Federal Government, so the count follows the federal calendar rather than a company's own, and an emirate-level holiday does not stop the clock unless it is also federal.

Article 49 fixes three counting rules that apply to every period in the law, including this one. The day of notification, or of the event that started the period, is not counted. If the last day is not a business day, the period runs to the next business day. And all periods are calculated on the Gregorian calendar, which matters where a tax period has been aligned to something else.

The practical consequence is that 20 business days is roughly four calendar weeks and can stretch well beyond that around Eid or the National Day holidays — but it is never shortened by a busy month. Where the law gives no period at all for an obligation, Article 48 requires the FTA to set one of not less than 5 and not more than 40 business days.

There is no standalone voluntary disclosure service card on the FTA's services index. As at 17 August 2026 that index lists registration, deregistration, amendment, refund, clarification, reconsideration and penalty-waiver services and does not mention voluntary disclosure at all, which is why searching the site for one comes up empty. The form is reached from the filed document you are correcting, inside the taxpayer portal.

That design is the reason a disclosure is always tied to one tax period. You open the row for the return or assessment concerned and start the disclosure from it; there is no blank form to fill in from scratch, and no way to disclose across several periods in one submission. Several periods means several disclosures.

The corporate tax return has a dedicated field for the AED 10,000-or-less case, which means the choice between disclosing and correcting is not a judgement call but a question the return itself asks you. The FTA's Tax Returns corporate tax guide, reference CTGTXR1, puts it at section 9.5: Has the Taxable Person made an error in a prior Tax Period where the tax impact is AED 10,000 or less?

Answer yes and you then select the prior tax periods concerned from a list of returns you have already filed, enter the amount by which taxable income increases for each period separately, and describe the nature of the adjustment. The guide states two conditions that are easy to miss. Where there is more than one error in a prior tax period, it is the aggregate tax impact that must be AED 10,000 or less. And the field is not shown in the return for your first tax period, because there is no prior period to adjust.

The same guide is explicit about the other side of the line: any other error in respect of a prior tax period should not be adjusted for as part of the return and must be amended by way of a voluntary disclosure under Article 10 of the Decree-Law read with Article 10 of Cabinet Decision No. 74 of 2023.

Article 46 of the Tax Procedures Law is the statute of limitation, and it is the article most often cited for the wrong thing — the power to waive a penalty is Article 50, which is a different provision doing a different job. Article 46 was also renumbered by Federal Decree-Law No. 17 of 2025, so the clause numbers in older commentary no longer line up.

The bar on disclosure is now Article 46(6): no voluntary disclosure may be submitted after the expiration of five years from the end of the relevant tax period. It carries one exception, for a disclosure under Article 10(2) relating to a refund application on which the FTA has not yet issued a decision. Tax evasion is Article 46(7) and failure to register is Article 46(8), both carrying a fifteen-year audit window rather than five. Anything that cites Article 46(5) for the disclosure bar is reading the pre-2025 text.

The more useful point is what a late disclosure costs in exposure rather than in penalty. Under Article 46(3), where an audit or assessment relates to a voluntary disclosure submitted in the fifth year from the end of the tax period, the FTA may audit or assess after the five years have run, provided it completes within one year of the disclosure. Filing in month fifty-nine therefore reopens a period that was about to close, and reopens it for a further twelve months. Article 46(9) adds that the limitation period is interrupted for any of the reasons in the Civil Transactions Law.

The arithmetic belongs on the calculators and the full schedules belong on the penalties hub, so this section states only the structure, which is what decides when you file rather than how much you pay.

Disclosing carries a monthly penalty of 1% of the tax difference, for each month or part of a month. Under Table 1 item 11 of Cabinet Decision No. 40 of 2017 as amended it runs from the day after the due date of the return, or the submission of the refund application, until the date the disclosure is submitted. Item 10 of Cabinet Decision No. 75 of 2023 says the same for corporate tax and adds a third possible start point, the notification of the tax assessment.

Not disclosing is a separate, heavier violation. Table 1 item 12, and item 11 of the corporate tax decision, penalise failure to submit a voluntary disclosure before being notified by the Authority that you will be subject to a tax audit: a fixed 15% of the tax difference, plus the 1% per month. Both texts then split the monthly limb. If you file a disclosure after that notification, the 1% stops on the date you file — but the fixed 15% has already been incurred and does not come back. If you never file, the 1% runs to the date the assessment is issued.

That is the sentence to take away. The event that closes the cheaper route is the notification of an audit, not the audit itself. Article 16(2) of the Tax Procedures Law requires the FTA to notify a person of a tax audit at least ten business days before conducting it, and those ten days are already too late: by the time the notice arrives the fixed 15% is fixed. Article 16(4) lets a tax auditor enter without any prior notification at all in three defined cases, including where the Authority has serious grounds to believe the person is involved in tax evasion, so the ten days are a general rule rather than a guarantee.

Searches for a voluntary disclosure user guide or voluntary disclosure guidelines are looking for a real document. The FTA published one, titled Voluntary Disclosure User Guide | VAT & Excise Tax, dated February 2022, running to 40 pages, and it is still served from the Authority's own media library. It is genuinely useful for the screen-by-screen mechanics, the tab names and the tax-group variants, and it is the source for the form references in this page.

It is also stale in three ways at once, and none of them is flagged on the document. Its footnote for the definition of a voluntary disclosure cites Article 1 of Federal Law No. 7 of 2017, which Article 55 of Federal Decree-Law No. 28 of 2022 repealed with effect from 1 March 2023. Its screenshots and instructions describe the old eServices portal rather than EmaraTax. And its penalties chapter, which simply points you at the on-screen figures, predates the corporate tax penalty schedule in Cabinet Decision No. 75 of 2023 entirely and predates the rewrite of the VAT tables by Cabinet Decision No. 129 of 2025 that took effect on 14 April 2026. Use it for the how, and use the Decree-Law and the Executive Regulation for the when.

There is no separate corporate tax voluntary disclosure user guide. The corporate tax treatment sits inside the Tax Returns guide CTGTXR1 at section 9.5, which is why searching for a dedicated CT disclosure manual returns nothing.

Every figure above was read in the primary text and the instruments are listed in the sources below. Where something is commonly asserted but could not be traced to an official source, it is left out deliberately.

We do not publish a success rate, an approval rate or any statistic about how the FTA treats disclosures. The Authority publishes none, a disclosure is a notification rather than an application to be approved, and any percentage you find is a marketing number. We do not publish case studies, client examples or outcomes, because this firm has none published and an invented one in a Your-Money-Your-Life context is worse than useless.

We do not state what any adviser charges to prepare a disclosure, our own included, and nothing on this page should be read as an offer to file one for you: acting before the FTA on another person's behalf requires registration in the Register of Tax Agents, and you should check that register rather than take anyone's word for it. We do not convert the 14% per annum late-payment penalty into a monthly figure, because both decisions charge it "for each month or part thereof" and neither publishes the conversion. We do not restate the terms of Cabinet Decision No. 17 of 2026, reported to have amended the Executive Regulation from 1 April 2026, because that text could not be opened from an official source — every Executive Regulation figure here is quoted from the 2023 version of Cabinet Decision No. 74 of 2023. And we do not tell you which nil-difference errors the FTA still requires a form for, because no published list of those cases could be found.

Statements on this page were checked against the consolidated texts published by the Ministry of Finance and the Federal Tax Authority on 17 August 2026.