Invoicing rules in Oman
VAT has applied in Oman since April 2021 at a standard rate of 5%. A registered supplier must issue a tax invoice showing its VAT identification number, the taxable value, the VAT amount and the total payable in Omani Rial, with sequential numbering retained for the Oman Tax Authority.
- Supplier legal name, address and VAT Identification Number (VATIN)
- Buyer name and address, plus their tax identifier where registered
- A unique sequential invoice number and issue date
- Line description, quantity, unit price and line total in OMR
- Taxable amount, 5% tax amount and gross total payable
- Payment terms, due date and bank transfer details