DuneQuote › Oman tax invoice: what the Tax Authority requires

Oman tax invoice: what the Tax Authority requires

By the DuneQuote Team · Last updated:

An Omani tax invoice must say "Tax Invoice" and show a sequential number, the date, your name, address and VAT identification number (VATIN), your client's details, the VAT rate and the VAT amount in OMR.[1] Issue it within 15 days of the supply (or of an advance payment).[1] Below: the full checklist, simplified invoices and e-invoicing.

What a full tax invoice must show

According to the VAT rules of Oman, a tax invoice includes:[1]

  1. The words "Tax Invoice".
  2. A sequential invoice number.
  3. The issue date and the supply date (and the payment date if paid before).
  4. Your full name, address and VATIN.
  5. Your client's full name, address and VATIN.
  6. A description of the goods or services, and the quantity of goods.
  7. The total excluding VAT and any discount.
  8. The VAT rate and the taxable value.
  9. The VAT due in OMR, even if the invoice is in another currency.

An invoice in English is accepted; be ready to provide an Arabic translation if the Tax Authority asks.[1] Amounts in OMR use 3 decimals (baisa); VAT is rounded to the nearest baisa.

Simplified tax invoice

You may issue a simplified tax invoice when the supply is under OMR 500, excluding VAT.[1] It shows at least the date, your VATIN, the taxable amount, the VAT rate and the VAT charged.[1]

E-invoicing

E-invoicing (Fawtara) becomes mandatory under Decision 189/2026: from 1 April 2027 for businesses with annual supplies above OMR 5 million, and from 1 October 2027 for all others.[2]

Oman VAT in brief

Tax invoices with DuneQuote

With DuneQuote, your quotes are in OMR with 5% VAT (or none if you are not registered) and show your VAT identification number. On Pro+, you turn an accepted quote into a tax invoice titled "Tax Invoice / فاتورة ضريبية", in English or English + Arabic, and send payment reminders. DuneQuote creates PDF tax invoices; it is not an e-invoicing service provider. Always check your invoices against the list above.

Send your next quote on WhatsApp

With DuneQuote you create a quote in OMR with 5% VAT (or none if you are not registered), send it on WhatsApp as a link, and your client accepts on their phone, with no account. No answer? Follow up in one tap: WhatsApp opens with the message ready, you press send. Documents in English, or English + Arabic.

Try for Free: 5 quotes a monthSee Oman prices

Plans in Oman: Free (5 quotes a month), Pro OMR 3/month and Pro+ OMR 5/month, VAT included, renewing monthly until you cancel. First 50 customers offer: Pro at OMR 10/year (50 spots for the whole GCC; rules).

FAQ

What must a tax invoice in Oman include?

The words "Tax Invoice", a sequential number, the issue date, your name, address and VAT identification number (VATIN), your client's name and address, a description and quantity, the price excluding VAT, the VAT rate, the VAT amount in OMR and the total.

When can I use a simplified tax invoice in Oman?

When the supply is under OMR 500, excluding VAT.

How long do I have to issue a tax invoice in Oman?

Issue it within 15 days of the supply (or of an advance payment).

Is e-invoicing mandatory in Oman?

E-invoicing (Fawtara) becomes mandatory under Decision 189/2026: from 1 April 2027 for businesses with annual supplies above OMR 5 million, and from 1 October 2027 for all others.

What is the VAT rate in Oman?

5%, since 16 April 2021.

Related guides

Saudi tax invoice requirements (ZATCA)Quotation format in Saudi ArabiaVAT rates in the GCCBahrain tax invoice requirementsQuotation app vs Excel vs accounting softwareUAE tax invoice templateQuotation format in the UAEDuneQuote in Saudi ArabiaDuneQuote home

Sources

This page is general information, not tax or legal advice. Rules can change; check the Oman Tax Authority for your situation.