Bahrain Tax Invoice Requirements: The Exact Fields Your Invoice Must Contain

Full invoice fields

14

Simplified fields

5

Simplified limit

BHD 500

Issue deadline

15 days from month end

Retention

5 years

Why the field list matters more than it looks

Invoice requirements are usually treated as a formatting exercise. They are not. The invoice is the evidence on which input VAT recovery depends, for both parties.

If your customer's invoice from you is missing a mandatory field, their input claim can be disallowed — even though they genuinely paid the VAT and you genuinely accounted for it. They then need a corrected invoice, which six months later is an administrative argument with a supplier who has moved on. Meanwhile the NBR has an adjustment, and it will apply it to the party that cannot produce the document.

This is why non-compliant invoices are consistently the most common audit finding in Bahrain. The cost lands on the buyer, the fix sits with the seller, and neither party is motivated to solve it quickly.

The 14 mandatory fields, in full

Fields 12 to 14 are the ones most often missed, because they only apply in specific circumstances and are therefore absent from a standard template. That is precisely the problem: a template that works for ordinary domestic BHD sales will be non-compliant the first time you invoice in USD, apply the margin method, or include an exempt line.

The simplified tax invoice

A reduced set of requirements applies where either of two conditions is met:

• The recipient is not registered for VAT in Bahrain, or
• The total consideration does not exceed BHD 500.

The simplified invoice requires five fields: the words "Tax Invoice", the supplier's name, address and VAT registration number, the date of issue, a description of the goods or services, and the total amount payable inclusive of VAT.

The 15-day issuance rule

A tax invoice must be issued within 15 days from the end of the month in which the supply took place.

The rule is measured from month end, not from the supply date, which gives more room than most people assume. A supply made on 25 January must be invoiced by 15 February. A supply made on 3 January has the same deadline.

Failure to issue a tax invoice in accordance with the provisions carries a penalty of up to BHD 5,000 under Article 60(B). Separately, systematically failing to issue invoices where required can be characterised as evasion under Articles 63–64, which is an entirely different order of exposure.

The exposure Bahrain VAT penalties explained: every fine and how to get it waived →

Currency and the BHD requirement

Amounts must be stated in Bahraini dinars. Where an invoice is denominated in a foreign currency, the invoice must show the exchange rate applied, and the VAT amount must be determinable in BHD.

This is a frequent failure on international invoicing, because the foreign-currency total looks complete and nobody notices the omission until an input claim is challenged. Two practical controls: fix the rate source in your system so it is consistent and evidenced, and print both the foreign total and the BHD equivalent on the document.

Credit and debit notes

Adjustments are made through credit and debit notes, which must carry the same mandatory content as a tax invoice plus a reference to the original invoice being adjusted.

Three points are commonly got wrong:

• A credit note needs its own sequential number — it is not a reissue of the original.
• The original invoice reference is mandatory. An unlinked credit note is difficult to substantiate on review.
• Period allocation matters. The adjustment belongs in the period in which it is issued, and it flows through the adjustments line of the return.

Retention

Tax invoices and supporting records must be kept for five years from the end of the tax period to which they relate. Records relating to real estate must be kept for fifteen years. Capital asset records run five years from the end of the tax period in which the asset's adjustment period ends.

Electronic retention is permitted — the requirement to obtain prior approval for issuing and retaining invoices electronically was removed in November 2023 — but the records must remain readable and producible for the full period. The NBR may also require retention for a further period of up to five years.

Preparing for e-invoicing

Bahrain does not currently have an e-invoicing mandate. No legislation has been published, no effective dates have been set, and an earlier target has already lapsed. Standard tax invoices remain fully valid.

That said, the direction is clear — Saudi Arabia and the UAE have both legislated, and the NBR has run a taxpayer readiness survey, removed the prior-approval requirement for electronic invoices, and tendered for a national e-invoicing platform. A Bahraini mandate is a matter of timing rather than probability.

The preparation is inexpensive and useful now regardless:

1. Comply strictly with the current rules — content, 15-day issuance, BHD and exchange rate, retention.
2. Keep your VAT registration number master data clean, for both your own and your customers' numbers.
3. Ensure your system can emit structured data, not just a PDF. Structured output is the eventual requirement, and building it later is far more disruptive.
4. Eliminate manual invoice edits. Every manual override becomes a problem under any clearance model.
5. Monitor NBR announcements rather than reacting to advisory speculation about launch dates.

And the recovery it protects Input VAT recovery: what you can claim back and what you can't →

A pre-issue checklist

Ten seconds per invoice, applied at the point of issue rather than at audit:

• Does it say "Tax Invoice"?
• Is our legal name, address and VRN shown exactly as registered?
• Is the customer's legal entity named, not their department?
• Is the number sequential with no gaps or duplicates?
• Are both dates present where they differ?
• Is the description specific enough to identify the supply?
• Are unit price, discount, net, rate, tax and gross all shown separately?
• If foreign currency, is the exchange rate stated?
• If mixed, is the exempt element identified?
• Is the correct format being used for this customer type?

General information only, not tax advice on specific facts. Invoice requirements reflect the Executive Regulations to Decree-Law No. 48 of 2018 as understood at the date of publication. E-invoicing status should be monitored directly through NBR announcements.