Build Your Compliance Calendar Once, Use It All Year

Most fines that hit small businesses do not come from big new laws. They come from the same few dates that repeat every month and every quarter, missed because nobody wrote them down. Build your compliance calendar once with the table below, and the next date on it, the VAT return due by 30 October, stops being a surprise.

The four rhythms to track

Almost every deadline a service business faces fits into one of four rhythms: monthly, quarterly, yearly, and the expiry date printed on each licence. Once you know which rhythm a task belongs to, you set a reminder once and stop carrying it in your head.

• Monthly salaries. The Wage Protection System (WPS) is the Ministry of Labour system that checks staff are paid through a bank or approved channel. Under Ministerial Decision 729/2024, wages must be transferred within three days after the wage period ends, as reported by the Times of Oman.
• Monthly social insurance. Social Protection Fund contributions are the monthly insurance payments for your insured staff. Article 58 of the Social Protection Law says they are due within the first 15 days of the month after the month they cover.
• Quarterly VAT. Value Added Tax (VAT) is the 5% tax a registered business adds to its bills. The Tax Authority's VAT taxpayer guide says the return and the payment are both due no later than the 30th day of the month after the tax period ends.
• Yearly income tax. The Tax Authority's income tax FAQs give three months after the tax year closes for taxpayers on the 3% rate, and four months for those on 15%.
• Licence expiry dates. A work-practice licence (the permit that lets an expat employee work in a set job) lasts up to 24 months. Under Ministerial Decision 602/2025, late renewal costs OMR 10 per month per worker, up to OMR 500.

Your copy-ready compliance calendar

Copy this into your phone calendar or a shared office sheet. The dates assume a month-end payroll, calendar-quarter VAT and a 31 December year end. Your Tax Authority account shows the tax period you were actually assigned, and some businesses file monthly, so check yours before you copy the VAT row.

One warning for this quarter: 30 October 2026 is a Friday, and 30 January 2027 is a Saturday. PwC's tax summary says a VAT deadline that lands on a weekend or public holiday moves to the next working day. Do not plan around that. Aim to file on the Thursday before.

A worked example with real numbers

Here is an example. Salim runs a small maintenance company in Ruwi with 8 staff and files VAT on calendar quarters. From July to September he billed OMR 24,000 before VAT and bought OMR 9,000 of VAT-able supplies. This is how his next four weeks look.

Now the cost of forgetting. PwC reports that late VAT payment adds 1% of the unpaid tax per month or part of a month, which is only OMR 7.50 a month on Salim's OMR 750. The bigger risk is the late filing penalty, which PwC puts at OMR 500 to OMR 5,000. On payroll, the Times of Oman report on Decision 729/2024 lists fines of OMR 50 per worker, doubling for repeat offences. For Salim that is OMR 400 for one late month. To redo this with your numbers, take the VAT on your sales, subtract the VAT on your business purchases, and write the result next to your due date.

Also new this week: recruitment office rules

On 11 October, Muscat Daily reported that the Minister of Labour issued Ministerial Decision 390/2026 on offices that recruit non-Omani workers. It takes effect on 1 January 2027. From then, only Ministry-licensed offices may recruit, using approved contracts. The report adds that recruitment must finish within 45 days, carries a two-year guarantee, and offices may not charge workers any fees.

If you hire through an agency, add one line to your calendar: before you sign anything for 2027, ask the office to confirm it holds a Ministry licence. If you like to track changes like this yourself, our guide on where to check what the rules changed this week lists the official places to look.

What this means for you

You do not need to remember any of this. You need to write it down once, in one place everyone can see, and give each line an owner.

1. Open your Tax Authority account and confirm whether your VAT tax period is quarterly or monthly.
2. Put the WPS, Fund and VAT dates into a shared calendar as repeating events, with a reminder five working days early.
3. List every expat employee's work-practice licence expiry date, plus your commercial registration and municipal licence dates, in one sheet.
4. Name one person for each line. A deadline with no owner is the one that gets missed.
5. Keep the money aside. Move your VAT amount into a separate account when you invoice, not when the deadline arrives.

The bottom line

The same handful of dates comes round every month and every quarter, and the fines for missing them are far larger than the effort of a calendar. Spend twenty minutes building yours this week, starting with the VAT return due by 30 October. After that, the calendar does the remembering for you.