In short
A Qualifying Free Zone Person's non-qualifying revenue must not exceed the lower of 5% of total revenue or AED 5 million in a tax period. Exceeding it does not tax only the excess: the company ceases to be a Qualifying Free Zone Person for that tax period and the four that follow, so all of its income is taxed at 9% for five years.
Of everything that can go wrong with a free zone tax position, this is the one that actually goes wrong. Substance is visible and planned for. The audit requirement is a diary entry. The de minimis cap is different: it is breached by ordinary commercial decisions, it is measured after the fact, and the penalty for crossing it is out of all proportion to the amount by which it is crossed.
What the cap is
Article 3 of Ministerial Decision No. 229 of 2025 sets the test. The de minimis requirements are satisfied where non-qualifying revenue in a tax period does not exceed 5% of the company's total revenue for that period, or AED 5,000,000, whichever is lower.
This is the point most often lost. Larger free zone companies do not get a proportionally larger allowance for non-qualifying business; they get a progressively tighter one. A group that has grown comfortably inside "5%" for years may be operating on a materially smaller margin than it believes.
What counts towards it
Non-qualifying revenue is revenue that is neither derived from a transaction with a Free Zone Person who is the beneficial recipient, nor from a Qualifying Activity. In practice it accumulates from a small number of recurring sources.
- Sales to mainland customers that are not within a Qualifying Activity.
- Transactions with natural persons, which are an Excluded Activity outside four narrow carve-outs.
- Income from activities that are simply not on the Qualifying Activities list — most professional and service work.
- Income from Excluded Activities: banking, insurance, finance and leasing, and immovable property outside the commercial-property-in-a-free-zone carve-out.
- Income from an activity that would otherwise qualify but fails a condition attached to it — securities sold inside the twelve-month holding period, or Designated Zone distribution where the required agreed-upon procedures report is not filed.
It is measured on revenue, not on profit. A low-margin or loss-making line of non-qualifying business consumes exactly as much headroom as a profitable one, which means the commercial significance of an activity is a poor guide to how much of the cap it uses.
What happens when it is breached
The company ceases to be a Qualifying Free Zone Person for the tax period in which the breach occurs, and for the four tax periods that follow. Five tax periods in total, at the standard rate, on all of its income — not merely on the revenue that broke the cap.
Three consequences of that structure are worth stating plainly, because they change how the risk should be managed.
- The cost is not proportionate. Exceeding the cap by a small amount produces the same outcome as exceeding it by a large one. There is no marginal zone and no partial relief.
- It is retrospective in effect. The breach is determined by the full-year revenue mix, so by the time it is measurable the period is over and nothing can be restructured.
- It is not curable by later good behaviour. A clean year two does not restore the status; the four following periods run regardless.
How it is usually broken
In practice, breaches rarely come from a deliberate decision to take non-qualifying work. They come from decisions that nobody involved recognised as tax decisions at the time.
- A mainland customer relationship that grows from occasional to material without anyone re-testing the mix.
- An asset or shareholding sold earlier than planned — for a good commercial reason — that fails a holding-period condition.
- A service line launched to use spare capacity, which turns out not to appear anywhere on the Qualifying Activities list.
- A fall in qualifying revenue rather than a rise in non-qualifying revenue. The cap is a ratio, so a weak year on the qualifying side can breach it with no new non-qualifying business at all.
- A procedural condition missed on an activity that qualified on its facts, which reclassifies that whole revenue line at once.
The last two are the ones that surprise people most. Neither involves doing anything differently, and neither will be flagged by anyone outside the finance function.
Related guideExcluded Activities: What a Free Zone Company Cannot Earn 0% OnManaging it as a monitoring problem
Because the test is annual, measured on outcomes, and unforgiving once crossed, the only useful control is one that runs during the year rather than after it.
- Classify revenue by qualifying status at the point of invoicing, not at year end. The information needed to classify a transaction is easiest to obtain when the transaction happens.
- Track the headroom as a live figure, and know which of the two limits currently binds for you. Above roughly AED 100 million of revenue, the AED 5 million ceiling is the one that matters.
- Test the ratio against forecast full-year revenue, not year-to-date. A cap expressed as a percentage moves as the qualifying side moves.
- Put a check in front of new customer categories and new service lines before they are launched, not after the first invoice.
- Re-test conditions attached to specific activities each year — holding periods and procedural filings are not settled by having been satisfied once.
A company that can state its non-qualifying revenue and its remaining headroom at any point in the year is managing this risk. A company that produces the number once, after the year has closed, is only recording what already happened.
The de minimis rule sits in Article 3 of Ministerial Decision No. 229 of 2025, which repealed Ministerial Decision No. 265 of 2023 and takes effect from 1 June 2023. The consequences of ceasing to meet the conditions sit in the Corporate Tax Law itself. Confirm the position for your own facts before relying on it.
Key takeaways
- Non-qualifying revenue must not exceed the lower of 5% of total revenue or AED 5 million in a tax period — Article 3 of Ministerial Decision No. 229 of 2025.
- "Whichever is lower" means the AED 5 million ceiling binds above roughly AED 100 million of revenue, so larger companies have a proportionally tighter allowance, not a larger one.
- Breaching the cap costs Qualifying Free Zone Person status for that tax period and the following four — five periods at the standard rate on all income, not just on the excess.
- The consequence is not proportionate: a small breach and a large one produce the same result.
- The cap is measured on revenue, not profit, so a low-margin non-qualifying line consumes as much headroom as a profitable one.
- It is a ratio, so a fall in qualifying revenue can breach it even with no new non-qualifying business.
- A procedural failure can reclassify an entire revenue line at once — for example securities sold inside twelve months, or Designated Zone distribution without the required agreed-upon procedures report.
- Because the test is annual and measured after the fact, the only effective control is live monitoring of headroom during the year.