Tax invoice in the UAE: how to issue one that will be accepted
A UAE tax invoice is neither a formality nor a payment request. It is the document your customer relies on to recover input VAT and you rely on to evidence the tax you charged. If a mandatory field is missing, the credit is disallowed — and not for whoever wrote the bad document, but for whoever accepted it. Below: what the invoice must contain, how the simplified form differs, how to state a VAT-inclusive price, and what to do about advances and foreign currency.
- Full invoice
- 7 mandatory fields
- Simplified
- under AED 10,000
- Tax amount
- always in dirhams
- Issue within
- 14 days
What the invoice must contain
The requirements come from the VAT law and do not depend on which software you issue the document in. A full tax invoice contains:
- the words "Tax Invoice" — exactly that, not "Invoice";
- the supplier's name, address and TRN;
- the customer's name and address, plus their TRN if they are VAT-registered;
- a unique sequential number and the date of issue;
- a description of the goods or services, quantity and unit price;
- the tax amount in dirhams and the exchange rate applied if the transaction is in another currency;
- the total payable.
An invoice without a TRN is not a tax invoice. The most common failure: the document looks like an invoice, is headed "Invoice", shows an amount and even a VAT line — but carries no supplier tax number. No input credit can be claimed against it. Check a counterparty's TRN before you pay, not at quarter end.
The simplified invoice: when a short form is allowed
For supplies under AED 10,000 a simplified form is permitted. It exists for situations where a full document is impractical: retail, hospitality, one-off small sales.
| Field | Full invoice | Simplified |
|---|---|---|
| The words "Tax Invoice" | required | required |
| Supplier name, address and TRN | required | required |
| Date of issue | required | required |
| Customer details and TRN | required | not required |
| Unique number | required | not required |
| Description of goods or services | required | required |
| Tax shown as a separate line | required | a gross total marked as tax-inclusive is accepted |
One caveat: the simplified invoice is the seller's option, not the buyer's. If your customer is a business that intends to recover the tax, they need the full document whatever the amount. In B2B, do not use the short form at all.
VAT-inclusive or exclusive: how to write it and avoid the argument
This is the question that sends documents back for reissue most often. In the UAE a price is treated as inclusive of tax unless stated otherwise. If the contract and the invoice simply say "AED 10,000", the authority assumes the 5% is already inside, and AED 476.19 of it belongs to the state.
| What is written | How it is read | What the seller keeps |
|---|---|---|
| AED 10,000 | inclusive of VAT | AED 9,523.81 |
| AED 10,000 inclusive of VAT | inclusive of VAT | AED 9,523.81 |
| AED 10,000 + VAT 5% (AED 500), total AED 10,500 | exclusive of VAT | AED 10,000 |
The correct layout is: net amount, then the VAT amount on its own line, then the total. "VAT included" is enough on a simplified document, but a full invoice must still show the tax as a figure — the word alone will not do.
Hence the practical rule for contracts: state in the contract itself whether the price includes tax. The dispute over whether the client owes another 5% almost always arises because the contract is silent — and silence, by law, favours the buyer.
Currency: bill in anything, report tax in dirhams
Nothing prevents you from invoicing in dollars, euros or roubles. But the tax amount must be shown in dirhams, with the rate used stated alongside it.
The rate is the official Central Bank of the UAE rate on the date of supply — not a monthly average, not your bank's rate, and not the rate on the payment date. Discrepancies here are a standard audit finding, because accounting software often substitutes its own default rate.
Advances and prepayments
The tax point is the earliest of three events: the supply itself, the issue of the invoice, or receipt of payment. A prepayment therefore creates a tax liability on its own, even though nothing has been delivered or performed yet.
The sequence is: receive the advance, issue a tax invoice for it; complete the work, issue a second invoice for the balance, crediting the first. "We will issue one document at the end" puts the tax in the wrong quarter, which then requires a voluntary disclosure.
An advance from a foreign counterparty. The question is not the currency but the place of supply. It determines whether the rate is 5%, zero, or the transaction sits outside the scope of UAE VAT entirely. Settle that before you issue the document — reissuing an invoice after the fact is harder than getting the rate right the first time.
Deadlines and retention
| What | Period |
|---|---|
| Issue the invoice after the supply | 14 calendar days |
| Retain VAT records | 5 years |
| Retain real estate records | 15 years |
| Penalty for failure to keep records | AED 10,000; AED 20,000 on repeat within 24 months |
Retention means being able to produce the document on request within a reasonable time — not "the files are somewhere". An archive in the personal mailbox of an employee who has left does not meet the requirement.
The errors that cost you the credit
- Missing or wrong supplier TRN. Verifiable online in a minute, and almost nobody checks.
- The document is headed "Invoice", not "Tax Invoice". A formality that disallows the credit outright.
- Tax not shown on a separate line on a full invoice.
- Tax stated in foreign currency without conversion to dirhams and without the rate.
- No customer details on a supply above AED 10,000.
- The date of supply falls outside the period in which the tax was reported.
And the point most often missed: your supplier's bad invoice hurts you. On audit the credit is disallowed for the party who claimed it, not the party who wrote the document. Since 14 April 2026 an error found by the authority costs 15% of the amount plus 1% a month, while the same error corrected voluntarily beforehand costs only 1% a month. The full schedule is in the summary of FTA penalties.
What changes with e-invoicing
The UAE is moving to mandatory electronic invoicing, and the field requirements tighten with it: the structured PINT AE format carries 51 mandatory fields for a tax invoice. The pilot began on 1 July 2026, large companies join from 1 January 2027 and everyone else from 1 July 2027.
The practical conclusion is to fix your documents now. Once a machine validates every invoice at the point of issue, "almost correct" stops passing at all. The schedule and requirements are covered separately in the guide to e-invoicing in the UAE.
