2026-08-21
Every taxable person registered for VAT in the UAE will, at some point, need to correct something. Maybe a figure was wrong in a return. Maybe a refund request did not go as planned.
The problem is that the law treats these two situations very differently. Get the classification wrong, and you may end up filing a Voluntary Disclosure you did not need to file, or worse, missing one that was actually required.
This blog breaks down what the law says, what the Federal Tax Authority portal actually does in practice, and four real examples of how a refund application can go wrong even when your tax return was perfectly correct.
The starting point is Article 10 of the Tax Procedures Law, Federal Decree-Law No. 28 of 2022. This law was amended by Federal Decree-Law No. 17 of 2025, and the amendment has been in force since 1 January 2026. The quotes below are from the current, amended version.
Article 10 sets out when a Voluntary Disclosure must be filed.
Article 10(1), Federal Decree-Law No. 28 of 2022 on Tax Procedures, as amended by Federal Decree-Law No. 17 of 2025, in force from 1 January 2026:
“If a Taxable Person becomes aware that a Tax Return submitted to the Authority or a Tax Assessment issued by the Authority is incorrect, which resulted in a calculation of Payable Tax according to the Tax Law being less than it should have been, the Taxable Person shall submit a Voluntary Disclosure.”
So, an incorrect tax return, in simple words, is a VAT return that understates or overstates the tax actually due. It could be wrong output tax, wrong input tax, or a wrong net position. The law does not care how the mistake happened. It only cares whether the figure is right or wrong.
Refunds are dealt with separately, in the Executive Regulation. The base regulation is Cabinet Decision No. 74 of 2023, and it was amended by Cabinet Decision No. 17 of 2026, in force from 1 April 2026. The rule below is Article 10(2) of that current, amended regulation.
Note that the regulation uses the term Voluntary Declaration, while the Decree-Law above uses Voluntary Disclosure. Both official translations mean the same filing, made through the same EmaraTax form.
Article 10(2), Cabinet Decision No. 74 of 2023 on the Executive Regulation of the Tax Procedures Law, as amended by Cabinet Decision No. 17 of 2026, in force from 1 April 2026:
“If the Taxpayer finds that the tax refund application submitted to the FTA is inaccurate, which led to calculating the amount that would have been refundable under the Tax Law in excess to the accurate value, they shall submit a Voluntary Declaration to the FTA within (20) twenty Business Days from the date of being aware of the error, unless the same is arising from an inaccurate Tax Return or Tax Assessment. In this case, the provisions of Clause (1) above shall be applicable.”
Read that last part again. The rule has an exception built into it. If the reason the refund is wrong is that the tax return underneath it was wrong, then it is not treated as a refund application error at all. It falls back to being a tax return error, and Clause 1 takes over.
Tax return errors (Article 10, Decree-Law No. 28) and refund application errors (Article 10, Executive Regulation) are governed by different provisions, with different consequences.
Only applies to a refund error that traces back to the underlying tax return. Below this, you can simply correct it in your next return.
A genuine, standalone refund application error always needs a Voluntary Disclosure within 20 business days, no matter how small the amount.
Credits older than five years must now be claimed by 31 December 2026 under the one-time transition rule, or they lapse for good.
This is where taxable persons often get confused, so it is worth spelling out Clause 1 in full.
Article 10(1)(a) and (b), Cabinet Decision No. 74 of 2023 on the Executive Regulation of the Tax Procedures Law, as amended by Cabinet Decision No. 17 of 2026, in force from 1 April 2026:
“a. If the amount is more than (AED 10,000) ten thousand dirhams, they shall submit a Voluntary Declaration, within (20) twenty Business Days following the date they become aware of the error. b. If the amount is equal to (AED 10,000) ten thousand dirhams or less, they shall act as follows: 1. If the Taxable Person is obliged to submit a Tax Return to the FTA, errors shall be corrected in the Tax Return for the previous Tax Period whose submission has not been yet due, or in the Tax Return for the Tax Period in which the error has been detected, whichever is earlier. 2. Submitting a Voluntary Declaration within (20) twenty Business Days from the date of being aware of the error in the absence of a Tax Return through which they can correct the error, pursuant to Subclause (1) above.”
So, a genuine, standalone refund application error always needs a Voluntary Disclosure within 20 business days, no matter how small the amount is. But a refund error that traces back to an incorrect tax return gets the benefit of the AED 10,000 threshold. Below this threshold, you may simply correct it in your next return instead of filing a Voluntary Disclosure at all.
This single distinction can save a taxable person from unnecessary paperwork, or protect them from a missed filing deadline they did not realise applied.
Here is a fair question many taxable persons ask. On EmaraTax, the refund form checks your figures against your return automatically. So how can a refund application go wrong on its own?
The answer lies in exactly how the portal is built. According to the FTA’s own VAT Refund User Guide, the refund form, Form VAT311, has three key fields.
FTA VAT Refund User Guide:
“Total amount of Excess Refundable Tax: This field is pre-populated based on the excess refundable tax reported in the relevant past VAT Returns, which have already been submitted up to the last return, minus Administration penalties due (except for the late registration penalty which is shown separately). The amount you wish to have refunded: Please enter the amount you wish to have refunded here. This amount must be equal to or less than the Total amount of Excess Refundable Tax. Remaining amount of eligible Excess Refundable Tax: This field is prepopulated and represents the remaining amount of excess refundable tax you may apply for in the future.”
This confirms the ceiling is real. You cannot simply type a bigger number than your return supports and expect it to go through. But a ceiling only blocks amounts above it. It does nothing about mistakes that sit quietly within it, or about events that happen outside the return altogether.
That is exactly where a true, standalone refund application error can still occur. Here are four real examples.
The refund form’s main ceiling auto-deducts most penalties, but the late registration penalty sits in its own manual field. If it’s entered as zero by mistake, the system never cross-checks it against the return — the return stays correct, and the error sits entirely inside the refund application.
Your remaining eligible balance only updates once the FTA finishes processing an earlier application. File a second request before the first is decided, and the portal may still show the old balance — letting the same money get claimed twice.
You apply for a refund based on your return. Before the FTA pays out, it issues a Tax Assessment for a different period, creating a fresh liability that was never netted off the original ceiling. Nothing in the return or the application was wrong — the mismatch is purely timing.
Article 38 now puts a hard five-year limit on refund and credit claims. If part of your balance relates to a period older than five years and the portal ceiling hasn’t been adjusted, you could technically receive a refund that includes credit no longer legally claimable.
The distinction between an incorrect tax return and an incorrect refund application is not just a technical label. It decides whether you must file a Voluntary Disclosure at all, and if you must, how many business days you have to do it.
Before assuming a refund mismatch means your tax return was wrong, trace the error back to its actual source.
01.Check the Late Registration Penalty Field
Always verify it yourself. Do not assume the portal has already accounted for it — this field is never cross-checked against your return.
02.Never Stack Refund Requests
Never file a second refund request while an earlier one from the same account is still pending — the balance may not have updated yet.
03.Watch for New Assessments Mid-Process
Keep an eye on any new Tax Assessments or penalties that could arise between the date you apply for a refund and the date it is actually paid.
04.Track the Age of Carried-Forward Credit
A five-year expiry now applies from 1 January 2026, with older credits needing to be claimed by 31 December 2026 under the transition window.
05.Trace the Error to Its Source
When a mismatch shows up, ask whether it came from the return or from the application itself before deciding which Voluntary Disclosure rule applies.
Getting this classification right the first time saves both time and money. It keeps a taxable person compliant without doing more paperwork than the law actually requires.
Sources
With over 25 years in Dubai and nearly 30 years as a Chartered and Management Accountant, Hemant has extensive experience across manufacturing, services and technology sectors. He has worked with major corporate groups including Al Tayer, Saif Al Ghurair, Dhabi, and Aditya Birla. Hemant specializes in profitability and cost management, debt restructuring, contract management, and regulatory compliance, having generated approximately USD 47.5 million in savings and profit growth. A confident public speaker and Distinguished Communicator, he lives by the quote: “You get what you reward for. If you want ants to come, you put sugar on the floor” (Charlie Munger), embodying his belief that “Profit has its own intelligence.”
With over 25 years in Dubai and nearly 30 years as a Chartered and Management Accountant, Hemant has extensive experience across manufacturing, services and technology sectors. He has worked with major corporate groups including Al Tayer, Saif Al Ghurair, Dhabi, and Aditya Birla. Hemant specializes in profitability and cost management, debt restructuring, contract management, and regulatory compliance, having generated approximately USD 47.5 million in savings and profit growth. A confident public speaker and Distinguished Communicator, he lives by the quote: “You get what you reward for. If you want ants to come, you put sugar on the floor” (Charlie Munger), embodying his belief that “Profit has its own intelligence.”
Archana Mundhra is a qualified Chartered Accountant with over 15 years of experience in multinational corporations. Her proficiency lies in financial planning and business intelligence. Her deep financial understanding and profound analytical skills empower her to assist management in realizing their objectives effectively.
Rinkle Jain is a qualified Chartered Accountant and Fellow Member of the Institute of Chartered Accountant of India. A results-driven Chartered Accountant with a distinguished career marked by proficiency in management, financial planning, and catalyzing overall company development.Demonstrates a unique blend of financial acumen, strategic insight, and leadership prowess, contributing significantly to organizational success.
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