Is a Proforma Invoice a Tax Invoice in the UAE?
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No, and the test takes a second: a tax invoice must carry the words "Tax Invoice" on its face. A proforma, by definition, does not.
Which means it creates no VAT liability for you and no reclaim for your customer. It is a commercial document — a formal quotation — and nothing about adding a VAT line to it changes that.
This is general guidance, not tax advice. For your situation, check the UAE Federal Tax Authority (FTA) or a qualified tax advisor.
Quick answers
The difference in practice
| Criterion | Proforma | Tax invoice |
|---|---|---|
| Creates a tax point | No | Yes |
| Goes in your VAT return | No | Yes |
| Customer can reclaim input VAT | No | Yes |
| Can be revised or withdrawn | Yes, freely | No — corrected by credit note |
| Number series | Its own | Its own, sequential |
What a proforma is actually for
Telling a customer what something will cost, in a form they can take to their own approvals process.
It is useful precisely because it is not binding: prices can change, quantities can be revised, the whole thing can be withdrawn. A customer opening a letter of credit or requesting internal budget approval often needs a document that looks like an invoice without being one.
Once the supply happens, the tax invoice follows, and it is a new document with its own number — not the proforma with a heading changed.
Keep the number series separate
A proforma should not draw a number from your tax invoice sequence.
Two reasons. If it does, and the deal falls through, you have a gap in the tax invoice run with nothing behind it. And a proforma carrying a tax invoice number invites exactly the confusion the document exists to avoid — someone downstream treating it as claimable.
Use a distinct prefix. The tax invoice can reference the proforma number for the audit trail, which is useful and costs nothing.
What the numbering rule actually requires
Here most guidance overstates the law.
The requirement is a sequential number, or a unique number that allows the invoice to be identified and its position in the sequence established. The purpose is that an auditor can see nothing is missing — not that the integers must be unbroken in themselves.
In practice this distinction matters less than it sounds, because the easiest way to demonstrate nothing is missing is an unbroken run. But it explains the right answer to the question everyone asks.
So what about a cancelled invoice?
Leave the number in the sequence and document why nothing sits behind it.
Do not reuse the number for a different supply, and do not renumber the invoices that follow to close the gap. A documented gap is a normal thing an auditor sees every week. An unexplained one is the thing that prompts questions, and a reused number is worse than either.
If the invoice was issued and then needs reversing, that is a credit note rather than a deletion.
One more thing about simplified invoices
The sequential number requirement sits in the particulars for a full tax invoice. It is not among the particulars listed for a simplified tax invoice.
That surprises people, and it should not change what you do — numbering everything consistently is better practice regardless, and any invoicing system does it automatically. But it is the accurate position, and worth knowing if someone tells you a simplified receipt is invalid for lacking one.
Where Fatura Go fits
Quotes and invoices are separate document types with separate numbering, so a quote cannot accidentally consume an invoice number.
Converting a quote into an invoice carries the line items and client across and issues a new document with its own number, which is the sequence the law expects rather than a relabelled quotation.
Frequently asked questions
Is a proforma invoice a tax invoice in the UAE?
No. A tax invoice must display the words "Tax Invoice", which a proforma does not, so it creates no tax point and cannot support an input VAT claim.
Can my customer reclaim VAT on a proforma invoice?
No. Only a valid tax invoice supports input VAT recovery, regardless of whether the proforma shows a VAT line.
Should a proforma use the same number series as my invoices?
No. Use a separate prefix, so a cancelled quotation does not leave a hole in your tax invoice sequence and nobody mistakes it for a claimable document.
Do UAE invoice numbers have to be strictly sequential with no gaps?
The requirement is a sequential number or a unique number that identifies the invoice and its place in the sequence. The purpose is to show nothing is missing, and an unbroken run is the simplest way to demonstrate that.
What do I do about a cancelled invoice number?
Leave the gap and record why. Do not reuse the number and do not renumber later invoices to close it.
Can I just change the heading on a proforma to make it a tax invoice?
No. The tax invoice is a separate document with its own number, issued when the supply takes place. It can reference the proforma number.
Do simplified tax invoices need a sequential number?
The requirement appears in the particulars for a full tax invoice, not for a simplified one. Numbering consistently is still better practice.
How do I correct an invoice I already issued?
With a credit note. Deleting or renumbering an issued invoice is not the correction mechanism.