Accounting and audit support in Oman
In Oman the accounts go in with the return, and release from that duty is a decision that expires. We watch the three tests and file the renewal before the cut-off.
Return due within
Срок декларации
4 months
4 месяца
Release ceiling
Потолок льготы
OMR 300,000
300 000 OMR
Late return fine
Штраф за просрочку
OMR 100–2,000
100–2 000 OMR
Unpaid tax carries
Неуплаченный налог
1% a month
1% в месяц
When you need accounting and audit support in Oman

Your return travels with the accounts
The return of income is filed with the period's accounts attached, and those accounts are audited by an auditor licensed to practise in Oman.
Relief is granted, not simply claimed
Being small does not switch the duty off by itself. Release from attaching accounts arrives as a decision on your application, and that decision names the period it covers.
The relief runs out on a date
A decision already granted has to be asked for again, at least three months before it expires. Miss that window and the accounts are owed for the year that follows.
One condition slips and it ends
Capital, gross income and headcount are tested together. If any of them stops being met, the accounts fall due within one month of the event rather than at the next year end.
What you get
- A return filed inside four months with the accounts already attached
- An auditor licensed in Oman engaged early enough to close the year
- Capital, income and headcount watched every period rather than once
- Applications filed ahead of the three-month cut-off while it is still ahead
- Registers, books and supporting documents held for the ten years required
What is required for accounting and audit in Oman

The Omani question is not whether you sit above a threshold. It is whether you hold a current decision. Attaching audited accounts to the return is the default, and the release from it is a permission with dates written on it.
Relief decisions of this kind are an Omani device. The service standing behind these dates, stripped of any country, lives at accounting support; our Oman page gathers whatever else we handle here.
What the Tax Authority asks for
- Registration within sixty days of the enterprise beginning or of the activity starting, whichever comes first.
- The return of income filed electronically before four months have run from the end of the tax year or of the accounting period.
- The accounts for that period attached to it: the balance sheet, the profit and loss account, the notes and the schedules that complete them.
- An auditor legally licensed to exercise the accounting and audit profession in Oman. The licence is what the law names; the size of the firm is beside the point.
- Registers, books of accounts and the documents proving their contents held at least ten years after the period they belong to.
Where the release begins and ends
The three tests
Capital recorded in the commercial register at the end of the period no higher than 50,000 rials, gross income for that period no higher than 300,000 rials, and an average of no more than ten employees counted however they were engaged.
The decision
Release takes effect only by an approval decision on your application. It fixes the period covered, how long it lasts and any conditions attached, and it can be withdrawn if it was issued on an incorrect ground.
The renewal
Three months before the decision expires at the latest, the application goes in again for the following year. There is no rollover.
The separate small-enterprise route
A different set of limits governs the three per cent rate: capital up to 50,000 rials, gross income up to 100,000 rials and an average of up to fifteen employees, with fifteen days to tell the Authority when one of them fails.
What lateness costs
The fines are modest and they land on separate things. A return filed late draws between 100 and 2,000 rials. Withholding statements, accounts or accounting records draws between 200 and 5,000 rials, and it can be imposed on the principal officer as well as on the company. Tax left unpaid carries an extra one per cent for every month it stays outstanding.
A ledger in another currency needs permission
Books may be maintained in a foreign currency only with the Authority's authorisation. Even where it is given, taxable income is still computed in rials at the average of the buying and selling rates on the closing date of the period, as published by the Central Bank of Oman.
Sources: accounts attached to the return, ten-year retention, foreign-currency books and the fines — the Income Tax Law, Royal Decree 28/2009 as amended; the release tests and the renewal — the Executive Regulation; sixty days and four months — the Tax Authority portal.
Stages of work
Registration inside the first sixty days
We register the company with the Tax Authority against the earlier of the two starting points the law recognises, and we record which one applied. The date decides everything that follows it.
Choosing the route before the year closes
Capital, gross income and headcount are measured against both sets of limits while the year can still be influenced. Applying afterwards means applying for the year after.
Keeping the books the law will recognise
Registers and books of account are maintained so that the figures in the return can be traced back to the documents proving them. Where a foreign currency is wanted, the authorisation is sought rather than assumed.
Engaging the auditor in time
An auditor licensed to practise in Oman is appointed far enough ahead that the audit finishes inside the four months rather than alongside the filing. We answer the audit queries directly.
Filing inside four months
The return goes in electronically with the accounts, notes and schedules attached to it. Tax due on the return is payable on the same deadline, and the monthly charge starts from it.
Watching the conditions between filings
Where a release decision is in force, its expiry date and its three tests are tracked through the year, and the renewal is filed before the three-month cut-off arrives.
Our case studies
FAQ
As a rule yes. The return of income is filed with the accounts for the accounting period attached, and the law requires those accounts to be audited by an auditor licensed to exercise the profession in Oman. The accounts mean the balance sheet, the profit and loss account, the notes and the attached schedules. A return submitted without them is one of the grounds on which the Authority may assess the company by estimate rather than on its own figures.
Three limits have to hold together: capital in the commercial register at the end of the period no higher than 50,000 rials, gross income for that period no higher than 300,000 rials, and an average of no more than ten employees. Meeting them is not enough on its own. The release works only through an approval decision on an application, it covers a stated period, and it has to be applied for again at least three months before it expires.
Three charges sit side by side. A return filed after its date draws a fine of between 100 and 2,000 rials. Refusing or failing to submit statements, accounts or accounting records within the time set draws between 200 and 5,000 rials, and that one may be imposed on the principal officer, on the company, or on both. Tax that stays unpaid after its deadline carries an additional one per cent of the outstanding amount for every month.
Only with the Tax Authority's authorisation. Registers and books of account may be maintained in a foreign currency where that permission has been given, and not otherwise. Even then the taxable income or loss for the period is computed in rials, converted at the average of the buying and selling rates prevailing on the closing date of the accounting period as published by the Central Bank of Oman. The permission is worth settling before the first close rather than after it.
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