What happens when you file an incorrect tax return in the UAE

What is the incorrect tax return penalty in the UAE?

The incorrect tax return penalty in the UAE is a financial sanction the Federal Tax Authority (FTA) imposes when a taxpayer submits a VAT or corporate tax return that contains errors. Errors can include understated output tax, overstated input tax, wrong revenue figures, or misclassified transactions. Penalties vary by violation type and are set by Cabinet Decision 106 of 2025.

Filing an accurate return is a legal obligation under Federal Decree-Law 17 of 2024 (tax procedures). If you are managing FTA compliance in the UAE, understanding how incorrect return penalties work is essential to protecting your business from avoidable fines.

Legal basis for incorrect return penalties

Two primary laws govern tax return accuracy in the UAE:

• Federal Decree-Law 8 of 2017 establishes VAT at a 5% standard rate and requires registered persons to file correct periodic returns.
• Federal Decree-Law 47 of 2022 introduces corporate tax at 9% on taxable income above AED 375,000 and requires annual returns within 9 months of the financial year end.

Procedural rules, including penalty amounts, sit in Federal Decree-Law 17 of 2024 on tax procedures and Cabinet Decision 106 of 2025. Together, these laws give the FTA authority to penalise any person who files an incorrect return, whether the error is intentional or accidental.

How the FTA defines an "incorrect" return

An incorrect return is one where the declared tax liability differs from the correct liability. Common triggers include:

• Reporting the wrong taxable supply amount.
• Claiming input tax on disallowed expenses.
• Omitting a transaction entirely.
• Applying the wrong tax rate or exemption.
• Misclassifying zero-rated supplies as exempt (or vice versa).
• Errors in the Tax Registration Number (TRN) or reporting period.

The FTA does not distinguish between "small" and "large" mistakes when deciding whether a penalty applies. The size of the error affects the penalty amount, not whether one is imposed.

Penalty amounts for incorrect tax returns

Cabinet Decision 106 of 2025 sets a tiered penalty structure. The table below summarises the key scenarios relevant to incorrect returns. For a broader view, see the full UAE tax penalties guide.

Violation	Penalty	Notes
Submitting an incorrect tax return	Fixed penalty plus a percentage of the unpaid tax (varies by violation category)	Exact percentage depends on whether the error reduced the payable tax or inflated a refund
Failure to correct an error via voluntary disclosure	Additional fixed penalty per instance	Penalty escalates the longer the error remains uncorrected
Tax evasion (deliberate incorrect return)	Up to AED 50,000 per violation, plus criminal prosecution risk	Intentional misstatement is treated far more severely
General administrative violations (supporting the incorrect return)	AED 2,500 for first offence, AED 5,000 for repeat within 24 months	Covers record-keeping failures that lead to errors

Penalties under Cabinet Decision 106 of 2025 range from AED 2,500 to AED 50,000 per violation. The FTA may impose multiple penalties for a single return if several distinct errors exist.

How the penalty is calculated on underpaid tax

When an incorrect return results in underpaid VAT or corporate tax, the FTA typically applies a percentage-based penalty on the difference between the tax that should have been paid and the tax that was actually declared. This is in addition to the obligation to pay the outstanding tax itself, plus any late payment penalties that accrue from the original due date.

For example, if a business understated its output VAT by AED 100,000 in a quarterly return, it would owe:

1. The AED 100,000 shortfall.
2. A fixed or percentage-based penalty for the incorrect return.
3. Late payment penalties calculated from the date the original return was due until the date of settlement.

This layered structure means a single filing error can generate three separate financial obligations. For details on the late payment component, see late filing penalties in the UAE.

VAT vs corporate tax: where incorrect return errors differ

Both VAT and corporate tax returns carry incorrect-return penalties, but the risk profile differs.

VAT return errors

VAT returns are filed monthly or quarterly, depending on the registrant's turnover. The higher filing frequency means more opportunities for mistakes. Common VAT errors include:

• Claiming input tax on entertainment expenses (disallowed under FTA guidance).
• Applying the 0% rate to supplies that do not qualify for zero-rating.
• Failing to account for reverse-charge VAT on imported services.
• Double-counting credit notes.

VAT returns must be filed within 28 days of the end of each tax period. An error discovered after this deadline requires a voluntary disclosure. Read more about UAE VAT penalties for the full penalty schedule.

Corporate tax return errors

Corporate tax returns are filed annually, within 9 months of the financial year end. Common corporate tax errors include:

• Incorrectly calculating the AED 375,000 zero-rate threshold.
• Misapplying small business relief (available for revenue up to AED 3M through 2026).
• Failing to add back non-deductible expenses.
• Errors in related-party transfer pricing adjustments.

Because corporate tax is newer (effective from June 2023 financial years onward), many businesses are filing for the first or second time. The FTA has signalled that it expects accuracy from the start. For the full breakdown, see UAE corporate tax penalties.

Voluntary disclosure: how to correct an incorrect return

The FTA allows taxpayers to correct errors through a voluntary disclosure. Filing a voluntary disclosure before the FTA discovers the error typically results in a lower penalty than if the FTA identifies the mistake during an audit.

When to file a voluntary disclosure

Under Federal Decree-Law 17 of 2024, a voluntary disclosure is required when a taxpayer discovers that a previously submitted return contains an error that resulted in:

• An underpayment of tax.
• An incorrect refund claim.
• Any material misstatement.

The disclosure must be filed through the FTA's online portal as soon as the error is identified. Delaying the disclosure increases penalty exposure.

Steps to file a voluntary disclosure

1. Log in to the FTA e-Services portal.
2. Select the relevant tax type (VAT or corporate tax).
3. Identify the return period that contains the error.
4. Enter the corrected figures and explain the nature of the error.
5. Pay any additional tax owed immediately.
6. Submit the disclosure and retain the confirmation for your records.

The FTA reviews each voluntary disclosure and may request supporting documents. Cooperation during this review process can influence the final penalty outcome.

How to avoid incorrect return penalties

Prevention is cheaper than correction. These practices reduce the risk of filing an incorrect return:

• Reconcile before filing. Match your accounting records to the return figures line by line.
• Separate tax codes. Use distinct tax codes for standard-rated, zero-rated, exempt, and out-of-scope transactions.
• Review input tax claims. Confirm every input tax claim meets FTA requirements, including valid tax invoices with the supplier's TRN.
• Automate where possible. Accounting software integrations reduce manual data entry errors.
• Keep records for 7 years. The FTA can audit returns going back several years. Complete records make it easier to defend your filing position.
• Train your team. Finance staff should understand the difference between zero-rated and exempt supplies, reverse-charge rules, and corporate tax add-backs.

What happens during an FTA audit

If the FTA identifies an incorrect return during a tax audit, the consequences are more severe than a self-corrected voluntary disclosure. The audit process typically follows these stages:

1. The FTA issues a notification letter specifying the tax periods under review.
2. The business must provide records, invoices, contracts, and bank statements within the stated deadline.
3. FTA auditors compare declared figures against source documents.
4. If discrepancies are found, the FTA issues a tax assessment with the corrected liability and applicable penalties.
5. The business has the right to object within 40 business days and, if unsatisfied, escalate to the Tax Disputes Resolution Committee.

Audit-triggered penalties are typically higher than voluntary disclosure penalties. The FTA may also impose penalties for related violations discovered during the audit, such as late registration penalties or record-keeping failures.

Upcoming e-invoicing requirements and return accuracy

The UAE is rolling out mandatory e-invoicing under a Peppol 5-corner Decentralized Continuous Transaction Control and Exchange (DCTCE) model. Phase 1 requires businesses with revenue above AED 50M to go live by January 1, 2027. SMEs follow on July 1, 2027, and government entities on October 1, 2027.

E-invoicing will create a direct data link between your invoicing system and the Ministry of Finance (MoF). This means discrepancies between your invoices and your tax returns will be easier for the FTA to detect. Businesses that adopt e-invoicing early will benefit from automated reconciliation, reducing the risk of incorrect returns. Non-compliance with e-invoicing rules carries its own penalties under Cabinet Decision 106 of 2025. Learn more about UAE e-invoicing penalties.

Staying ahead of FTA compliance requirements protects your business from penalties that can reach AED 50,000 per violation. If you need software that connects your accounting system to an accredited service provider for e-invoicing, get UAE e-invoicing pricing from EInvoice Direct and see how the platform keeps your data accurate from invoice to return.