The cost of an error changed on 14 April 2026, when new penalties replaced the old percentage scales, and the input tax rules tightened again on 1 October 2026. This guide covers each error, a worked quarter-end review, how to correct a mistake after filing, and the current penalties.
What goes in the UAE VAT return, and when is it due?
The VAT 201 return and the tax due must both reach the FTA by the 28th day of the month after the tax period ends; a weekend or holiday moves the deadline to the next working day. Submitting the return does not pay the tax, and a saved draft does not count as filed.
| Box | What it reports |
|---|---|
| 1a to 1g | Standard-rated supplies, split by emirate (Abu Dhabi, Dubai, Sharjah, Ajman, Umm Al Quwain, Ras Al Khaimah, Fujairah) |
| 2 | Tourist refunds |
| 3 | Supplies subject to the reverse charge |
| 4 | Zero-rated supplies |
| 5 | Exempt supplies |
| 6 and 7 | Goods imported, and adjustments to them (box 6 is pre-filled from customs) |
| 8 | Total of boxes 1 to 7 |
| 9 | Standard-rated expenses |
| 10 | Input tax on reverse-charge supplies and imports |
| 11 | Total input tax |
| 12 to 14 | Tax due, recoverable tax and the net amount payable |
Most of the errors below show up in boxes 1a to 1g, 3, 4, 9 and 10, so check those first.
Which output VAT errors are most common?
The first four errors are on the sales side. Each one either reports VAT in the wrong place or in the wrong period.
1. Sales in the wrong emirate. Boxes 1a to 1g follow the emirate of the establishment most closely connected to the supply, not where the customer is. A Dubai branch selling to a Sharjah customer reports in Dubai. Since 1 January 2025, a wrong-emirate error needs a voluntary disclosure even when the tax total is unchanged.
2. VAT timed to revenue instead of the date of supply. VAT is due at the earliest of delivery or completion, payment, or invoice. An advance received in March is a March supply for VAT, even if the revenue is recognised in May.
3. Zero-rating without evidence. Exported goods must leave the UAE within 90 days of supply, with official and commercial evidence on file. Goods sold from the mainland into a designated zone are local supplies, not exports, so they are not zero-rated as exports.
4. Wrong exchange rate. Invoices in foreign currency are converted to AED at the UAE Central Bank rate on the date of supply. Check that your ERP uses that rate, not a bank rate or the rate on the payment date.
Which input VAT errors are most common?
The last four errors are on the purchase side, and two of the rules changed on 1 October 2026.
5. Input tax without a valid or paid invoice. You can recover input tax only when you hold a valid tax invoice and intend to pay. If you have not paid within 6 months of the agreed payment date, reduce the input tax you claimed. Accruals booked before the invoice arrives carry no input tax.
6. Blocked input tax. Entertainment for people who are not employees, cars available for private use, and goods or services given to staff for personal use are blocked. From 1 October 2026, two more items are blocked: employee accommodation that the law does not require you to provide, and purchases paid in cash above a threshold the Ministry has yet to set.
7. Reverse charge missed or misapplied. Services bought from abroad usually fall under the reverse charge: report the output tax in box 3 and recover it in box 10. Since 1 January 2026 you no longer issue yourself a tax invoice for it, but you must still account for it and keep the documents.
8. Unchecked suppliers. Since 1 January 2026, input tax can be denied if you knew, or should have known, that a purchase was linked to tax evasion. FTA Decision No. 13 of 2026, in force from 1 October 2026, sets the checks: the supplier's identity and premises and the commercial logic of the deal, with extra checks for suppliers above AED 375,000 over 12 months.
What does a pre-filing review catch? A worked example
A Dubai trading company reviews its July to September 2026 return before filing and finds four errors. Correcting them adds AED 4,650 to the VAT payable, at no penalty, because the return has not yet been filed.
| Error found | Box | Change to VAT payable (AED) |
|---|---|---|
| Supplier invoice of AED 40,000 plus AED 2,000 VAT, claimed in Q1, still unpaid 6 months after its 15 February due date | 9 | +2,000 |
| Client dinner of AED 3,000 plus AED 150 VAT claimed as input tax (blocked entertainment) | 9 | +150 |
| Advance of AED 52,500 including VAT received on 25 September, left for the next quarter | 1b | +2,500 |
| AED 20,000 consultancy from a UK firm, reverse charge not booked | 3 and 10 | 0 (AED 1,000 output and AED 1,000 input) |
| Total | +4,650 |
The reverse charge item changes nothing in the tax due, but the return is still wrong without it: boxes 3 and 10 would both be understated. If the same four errors were found after filing, the AED 4,650 difference is below the AED 10,000 limit and could be corrected in the next return, but the tax would have been paid late, and penalties may apply.
How do you correct a mistake after filing?
If the error changes the tax by more than AED 10,000, file a voluntary disclosure within 20 business days of finding it. If the difference is AED 10,000 or less, you can correct it in your next return instead.
| Situation | How to correct it |
|---|---|
| Tax difference above AED 10,000 | Voluntary disclosure within 20 business days |
| Tax difference of AED 10,000 or less | Adjust it in the next VAT return |
| Sales in the wrong emirate, or zero-rated or exempt sales reported in the wrong box, even with no tax difference | Voluntary disclosure (FTA Decision No. 8 of 2024, from 1 January 2025) |
| Refund claim overstated | The same AED 10,000 and 20-business-day rule, since 1 April 2026 |
The Tax Procedures Law amendments in force since 1 January 2026 also changed some disclosure procedures, so check the FTA's current guidance before choosing a route.
Two time limits matter. Voluntary disclosures stay within the five-year limit. And under the VAT Law amendments, excess recoverable VAT must be used or refunded within five years of the end of the tax period, or it is lost.
What are the VAT penalties since 14 April 2026?
Cabinet Decision No. 129 of 2025, effective 14 April 2026, replaced the old penalty scales. Late payment now costs 14% a year, charged monthly, instead of the old 2% plus 4% a month; a voluntary disclosure costs 1% a month on the tax difference instead of 5% to 40%.
| Violation | Penalty |
|---|---|
| Late VAT return | AED 1,000; AED 2,000 for a repeat within 24 months |
| Late payment | 14% a year, charged monthly from the day after the due date |
| Incorrect return | AED 500, waived if corrected before the deadline or by a disclosure with no change in tax |
| Voluntary disclosure | 1% a month on the tax difference until the disclosure is filed |
| Error found by the FTA before you disclosed it | 15% of the tax difference plus 1% a month |
| Failure to issue a tax invoice or credit note | AED 2,500 per case |
What the change means. Under the old rules a voluntary disclosure started at 5% of the tax difference; now one filed within a month costs about 1%, while waiting for an audit costs at least 15%.
How can you catch these errors before filing?
At HYP ERP customers, most VAT return errors come from master data and posting habits, not from the return itself. A short review the week before the 28th catches nearly all of them.
Customers most often miss advances and the 6-month rule, because both depend on dates the ERP must track. From 2027, also check that every e-invoice reported by your ASP appears in the return. For the wider monthly routine, see Audit-Ready Books: A Month-End Checklist for UAE and Saudi Finance Teams.
Sources
- FTA: VAT guidance for retailers, including the return due date
- Federal Decree-Law No. 8 of 2017 on VAT, consolidated
- Cabinet Decision No. 40 of 2017 on penalties, consolidated with Cabinet Decision No. 129 of 2025
- KPMG: Federal Decree-Laws No. 16 and 17 of 2025
- KPMG: VAT return errors requiring voluntary disclosure (FTA Decision No. 8 of 2024), 14 February 2025
- PwC: Cabinet Decision No. 149 of 2026 amending the VAT Executive Regulation, 22 September 2026
- PwC: FTA Decision No. 13 of 2026 on verifying supplies before deducting input tax, 26 August 2026
- Crowe: when to file a voluntary disclosure
- The National: UAE amends VAT rules, 3 December 2025