Choose Oman at sign-up and 5% VAT, the rial and a matching chart of accounts are already in place.
Oman
Running your books in Oman
There is a regulator, a rate and an electronic filing obligation to satisfy here. All three are handled inside the software you use every day, rather than by a second product bolted on beside it.
Currency
OMR
Standard rate
VAT 5%
Electronic invoicing
Announced — coming
Authority
the Oman Tax Authority
Rates and obligations on this page were last reviewed on 11 September 2026. They are given for orientation, not as tax advice — check the current position with the authority or your accountant before you rely on it.
What that means for a business in Oman
Oman's Fawtara e-invoicing platform becomes mandatory under Tax Authority Decision 189/2026: from 1 April 2027 for businesses with annual supplies above OMR 5 million, and from 1 October 2027 for everyone else.
Until your phase begins, ordinary tax invoices remain valid.
Your VAT summary is read straight off posted journals, with a drill-down to the invoice behind every figure.
Your invoices already carry the fields a structured e-invoice needs, so when your phase arrives it is a switch to turn on rather than a data project to start.
E-invoicing ready
One vendor, one login, one bill
The usual arrangement is accounting software from one company and an e-invoicing service from another, joined by an integration that someone has to keep working. That is two contracts, two support queues and a seam where invoices go missing. Here the invoice, the tax and the accounting entry are the same record.
- No integration project, and no integration to maintain afterwards
- One price that covers the books and the filing together
- A correction updates the ledger and the submission at the same time
- One team to call when something is wrong
What the first hour looks like
Four steps, in this order, and you are working. Choosing Oman at sign-up fills in most of them for you.
- Your company Name, address and financial year. Choosing Oman sets OMR as your base currency and picks the right time zone, so your first day's dates are already correct.
- Your tax codes VAT at 5% is created for you, along with the zero-rated and exempt codes you will need for a mixed invoice.
- Your chart of accounts A standard chart is created for you. Rename it, extend it or import your accountant's own — nothing here is locked.
- Your opening balances Customers, suppliers, bank balances and stock on hand, entered or imported from a spreadsheet. After that you are simply working.
WisoBooks is a bookkeeping and business-management tool, not an accounting, tax or legal advisor. Nothing on this page is tax advice, and tax rules change. Confirm your own obligations with the relevant authority or a qualified advisor.