Output VAT Adjustment in UAE: When to Issue a Credit Note or New Tax Invoice

Output VAT is the VAT a registered business charges on taxable supplies of goods or services. In some cases, the VAT charged on the original tax invoice later becomes incorrect because the supply is cancelled, goods are returned, the price changes, or VAT was charged wrongly.

When this happens, the supplier must adjust the output VAT. If the VAT due increases, the supplier should issue a new tax invoice for the additional VAT. If the VAT due decreases, the supplier should issue a tax credit note to reduce the original VAT amount.

When Is Output VAT Adjustment Required?

What Is Output VAT Adjustment?

Output VAT adjustment is the correction of VAT previously charged by a VAT-registered supplier. It is needed when the VAT amount shown in the original invoice is no longer the correct VAT amount for that supply.

The adjustment may increase or decrease the supplier’s VAT liability:

• If the original VAT was too low, the supplier must account for the additional VAT.
• If the original VAT was too high, the supplier must reduce output VAT by issuing a tax credit note.

This keeps the supplier’s VAT return and the customer’s input VAT claim aligned with the actual value and tax treatment of the transaction.

Common Events That Require Output VAT Adjustment

1. Cancellation of Supply

If a supply is cancelled after the tax invoice is issued, the supplier may need to reverse the original VAT charged. This is usually done by issuing a tax credit note.

Example: A customer places an order and receives a tax invoice, but the order is later cancelled before delivery. The supplier should issue a credit note to cancel the taxable value and VAT originally charged.

2. Goods or Services Returned in Full or in Part

If the customer returns goods or rejects services after the invoice has been issued, the supplier should adjust output VAT based on the value returned.

Example:

The supplier should issue a tax credit note for AED 10,000 plus VAT of AED 500. The supplier reduces output VAT by AED 500, and the customer reduces input VAT by AED 500 if it had already claimed the original input VAT.

3. Change in Consideration

Output VAT adjustment is required when the agreed consideration changes after the supply date. This can happen because of a discount, rebate, refund, additional charge, or commercial settlement.

• If the price decreases, issue a tax credit note.
• If the price increases, issue a new tax invoice for the additional VAT.

For discount-related cases, the supplier should also confirm whether the customer benefited from the discount and whether the supplier funded the discount. These points affect whether the taxable value can be reduced.

4. Change in Tax Treatment

Sometimes the nature of a supply changes after the original invoice. For example, a transaction may originally have been treated as standard-rated, but later evidence shows that a different VAT treatment applies.

If the tax treatment changes and affects the VAT amount, the supplier must adjust the output VAT using the correct document.

5. VAT Charged in Error

If a supplier charges VAT incorrectly, an output VAT adjustment may be required. This can happen where:

• VAT was charged at 5% when the supply was zero-rated.
• VAT was charged when the supply was exempt or outside the scope.
• VAT was not charged when the supply was taxable.
• The wrong taxable value was used.
• The wrong VAT rate was applied.

If the VAT originally charged was too high, the supplier should issue a tax credit note. If the VAT originally charged was too low, the supplier should issue a new tax invoice for the additional VAT.

Tax Credit Note vs New Tax Invoice

When Should a Tax Credit Note Be Issued?

A tax credit note should be issued when the supplier needs to reduce output VAT already charged on a previous tax invoice. This may happen due to returns, cancellations, discounts, price reductions, or an overcharged VAT amount.

A tax credit note should clearly refer to the original invoice and show the corrected taxable value and VAT amount.

What Should a Tax Credit Note Include?

A UAE tax credit note should include the necessary details to connect the adjustment to the original supply. In practice, it should contain:

• The words “Tax Credit Note”
• Supplier name, address, and TRN
• Customer name, address, and TRN, where applicable
• Date of issue
• Reference to the original tax invoice
• Reason for the credit note
• Taxable value being reduced
• VAT amount being reduced
• Total amount credited

Businesses should also keep supporting documents such as return notes, refund approvals, revised contracts, discount approvals, or correspondence with the customer.

How Output VAT Adjustment Affects the Customer

Output VAT adjustment does not affect only the supplier. If the customer is VAT-registered and had claimed input VAT on the original invoice, it may also need to adjust its input VAT when it receives a tax credit note.

For example, if the supplier issues a credit note reducing VAT by AED 500, the supplier reduces output VAT by AED 500, and the customer reduces recoverable input VAT by AED 500 if it had already recovered that amount.

How to Report Output VAT Adjustments in the VAT Return

Output VAT adjustments should be reflected in the VAT return for the relevant tax period. Reductions due to credit notes and allowable corrections should be included in the VAT return records.

However, businesses should distinguish between:

• Normal commercial adjustments: returns, cancellations, discounts, and price changes supported by credit notes.
• VAT return errors: mistakes in previously submitted VAT returns that may need correction or voluntary disclosure.

If the issue is a previous VAT return error, the business should review whether it can correct the error in the current return or whether a voluntary disclosure is required. You can also review how voluntary disclosure works under UAE VAT law where the error is material.

Output VAT Adjustment vs Voluntary Disclosure

Not every output VAT issue is handled in the same way. A credit note is suitable where a real commercial event changes the original transaction, such as a return or discount. A voluntary disclosure may be required where a previously submitted VAT return contains a tax error above the permitted correction threshold.

Bad Debt Output VAT Adjustment

Bad debt relief is separate from ordinary credit note adjustments but is still related to output VAT. A supplier may reduce output VAT for a previous supply where the debt has been written off and the UAE VAT conditions are met.

In general, bad debt adjustment requires that:

• The goods or services were supplied.
• VAT was charged and accounted for.
• The consideration was written off in full or in part as a bad debt.
• More than six months have passed from the date of supply.
• The supplier has notified the customer of the written-off amount.

The customer may also need to reduce input VAT if it had claimed VAT on the unpaid supply and the relevant conditions are met.

Common Output VAT Adjustment Mistakes

• Not issuing a tax credit note when goods are returned.
• Reducing output VAT without supporting documents.
• Using a payment receipt instead of a proper tax credit note.
• Not linking the credit note to the original tax invoice.
• Forgetting that the customer must adjust input VAT after receiving a credit note.
• Issuing a credit note when the VAT should actually be increased through a new tax invoice.
• Using credit notes to hide previous VAT return errors instead of correcting them properly.
• Not reviewing whether voluntary disclosure is required for material errors.
• Failing to report credit note adjustments in the correct VAT return period.

If your business has repeated adjustment issues, it may be useful to compare them with other common VAT return filing errors before submitting the next VAT return.

Records to Keep for Output VAT Adjustments

Businesses should maintain clear records showing why an output VAT adjustment was made. This is important if the FTA asks for evidence during a review or audit.

• Original tax invoice
• Tax credit note or new tax invoice
• Goods return note or service cancellation record
• Revised contract or agreement
• Discount or rebate approval
• Customer correspondence
• Payment or refund evidence
• Bad debt write-off approval, if applicable
• VAT return workings
• Accounting entries showing the adjustment

Checklist Before Adjusting Output VAT

• What event caused the adjustment?
• Did the VAT amount increase or decrease?
• Is a tax credit note or new tax invoice required?
• Does the adjustment relate to a real commercial event or a filing error?
• Has the customer been informed?
• Does the customer need to adjust input VAT?
• Are supporting documents available?
• Will the adjustment be reported in the correct VAT return?
• Is voluntary disclosure required for a previous return error?

VAT Adjustment Support in UAE

Output VAT adjustments should be handled carefully because they affect both supplier output VAT and customer input VAT. Incorrect credit notes, missing documents, or wrong VAT return treatment can create compliance issues during an FTA review.

VAT Registration UAE assists businesses with VAT credit note review, output VAT correction, VAT return adjustments, bad debt relief checks, voluntary disclosure assessment, and VAT filing support. If your business has issued refunds, returns, discounts, or correction invoices, you can use VAT return filing support to review the adjustment before submission.

FAQs About Output VAT Adjustment in UAE