How to record customer advance payments in the UAE, from receipt to final invoice

When a customer pays before delivery, credit a liability account called “customer advances” or “advances from customers”, not sales. The amount you owe them in goods or services is a real obligation until you deliver.

For VAT, Article 25 of the VAT Decree-Law makes the date of supply the earliest of events including receipt of payment and issue of a tax invoice. So a taxable advance usually triggers output VAT in the period it is received. Treat the advance as VAT-inclusive and issue a tax invoice for it within 14 days.

An Al Quoz joinery workshop quotes AED 80,000 plus VAT for fitted wardrobes, AED 84,000 in total, with 50% upfront. The customer pays AED 42,000 on 5 August.

On 5 August: debit bank AED 42,000; credit customer advances AED 40,000; credit VAT output AED 2,000. Installation finishes on 20 September. The final invoice shows the full AED 80,000 plus VAT, less the advance already invoiced. Entry: debit customer advances AED 40,000; debit accounts receivable AED 42,000; credit sales AED 80,000; credit VAT output AED 2,000. The second half of the VAT falls in the period of the final invoice.

• Advance invoice: AED 40,000 + AED 2,000 VAT
• Final invoice: AED 80,000 + AED 4,000 VAT, less AED 42,000 already invoiced
• Balance due: AED 42,000
• Total VAT across both periods: AED 4,000, never more

The most frequent error is charging VAT twice: once on the advance invoice and again on the full value of the final invoice, without deducting the advance. The second is booking the advance to sales, which overstates revenue in August and understates it in September. The third is letting old advances sit in the liability account long after the job is complete because nobody offset them.

Our view: run a report of customer advances older than 90 days every month. Each one is either an unfinished job, a final invoice that forgot to deduct the advance, or a refund you owe.

If the order is cancelled and you refund the advance, issue a tax credit note within 14 days of the cancellation, as Article 62 of the VAT Decree-Law requires, reduce output VAT, and pay the money back. If your terms allow you to keep part of the advance, the retained amount becomes income; check the VAT treatment with your tax agent based on the wording of the contract.

Foreign currency advances need a note too. VAT on an advance received in USD is converted at the Central Bank rate on the date of supply, under Article 69. The final invoice uses its own date’s rate, and any difference when you offset the advance is an exchange difference.

Record the advance as a deposit invoice against the customer. When the receipt lands in your uploaded bank statement, the AI agent matches it and posts it to customer advances with the VAT split. When you draft the final invoice, the agent finds the open advance for that customer and project and offers to deduct it, so the VAT is not doubled.

Ask “which customers have advances older than 60 days with no final invoice?” and it lists them for follow-up. You approve each offset and refund. Businesses wanting a custom deposit invoice layout can ask for one through /book-a-demo.