Free Zone Corporate Tax UAE: The Slice Is 0%, Not 9%

Last month, a free zone founder in Dubai showed us his draft return. The business was clean, the audit was done, and almost all of his revenue came from qualifying work. Almost. About AED 800,000 of other income sat in the file, against roughly AED 40 million of qualifying revenue. His first instinct was the one we hear every week: split it. Put 0% on the qualifying part, put 9% on the small slice, and be safe. His accountant had even written it that way in a note. Safe, tidy, and wrong. On the careful reading of the rules, that slice inside the limit is not taxed at 9% at all. It becomes qualifying income, and it is taxed at 0%. He was about to pay tax that was not due, in the name of being careful. And the guide he had checked before calling us told him to do exactly that.

This post puts the two versions side by side, in their authors' own words. Free zone corporate tax in the UAE turns on one test most summaries flatten into a split, and the flattening costs money in both directions: firms overpay on a slice that should be free, and firms underplay a breach that costs five years, not one. We do not price any named company's slice or declare its status lost. That call belongs to the decisions, to each free zone person's own revenue buckets, and to its filed return.

Free Zone Corporate Tax UAE: The Gate, Not the Split

Start with the structure every account agrees on. A Qualifying Free Zone Person, a QFZP, pays 0% on qualifying income if it meets every condition in Article 18 of the Corporate Tax Law: adequate substance in the free zone, audited financial statements, transfer pricing compliance, and the rest. Cabinet Decision No. 100 of 2023 defines qualifying income. Ministerial Decision No. 229 of 2025, which replaced Decision No. 265 of 2023 and applies from 1 June 2023, lists the qualifying activities in Article 2 and sets the de minimis test in Article 3.

That test is simple to state and easy to misread. Non-qualifying revenue in a tax period must not exceed the lower of 5% of total revenue or AED 5,000,000. Meet it, and the law treats the other income as qualifying. The tax agent explainer at the centre of this post states it in terms: non-qualifying revenue that stays inside the de minimis limit becomes qualifying income taxed at 0%. Its worked example is the founder's file almost exactly: AED 800,000 of other income against AED 40 million of qualifying revenue, and the whole AED 40.8 million taxed at 0%. Its warning deserves quoting in spirit, because it names the exact error: booking 9% on the small slice to be safe is not safe. It is just wrong.

Why does the split feel so natural? Because two rates exist, and our brains split income between rates the way we split a bill. But the de minimis rule is not a proportional carve-out. It is a pass or fail gate. Inside the gate, the residue joins the qualifying side. Outside the gate, there is no small slice left to price, because the status itself has gone.

The Guides That Charge 9% on the Slice Anyway

Now read the other shelf. A free zone tax guide, updated about 50 days ago, prints its own rate table. One row reads, in plain terms: QFZP, non-qualifying income within de minimis, 9% on that specific income only. The same guide gets the breach row right. Lose the status and the whole taxable income above AED 375,000 is taxed at 9%, for the current period plus the following four. So a reader who trusts the table pays 9% on a slice the careful account puts at 0%, while correctly fearing the five-period loss the table also describes. One page, one right fear and one wrong bill.

A qualifying-income explainer goes further. It states that a QFZP pays 0% only on qualifying income and 9% on everything else. Anything outside its three buckets, it says, is non-qualifying and taxed at 9%, from the first dirham, with no small-profit cushion. Notice what has vanished from that sentence: the cushion is the whole point of de minimis. The rule exists so a small amount of off-list income does not poison a qualifying business. An explainer that charges it from the first dirham has deleted the rule while keeping its name, because the same page still prints the 5% and AED 5 million limit and the five-year breach consequence.

A free zone versus mainland comparison repeats the split in its quick answer: free zone entities that qualify pay 0% on qualifying income and 9% on non-qualifying income. For a founder choosing a zone, that sentence becomes a price. He models his mainland-facing sideline at 9%, tells his partners the free zone still wins, and never learns the sideline, kept inside the limit, would have cost him nothing in tax at all. We saw a version of this pricing error in our post on the penalty regime that never merged: one confident summary, copied into a plan, quietly becomes the plan's most expensive line.

The worked example, done both ways

Take the numbers from the careful account and run them through the split. Total revenue AED 40.8 million. Five per cent of total revenue is AED 2.04 million, which is lower than AED 5 million, so AED 2.04 million is the limit. The other income is AED 800,000, well inside it. On the gate reading: de minimis passes, the AED 800,000 becomes qualifying income, tax on the whole position is 0%. On the split reading: 9% is charged on the slice. The founder does not need us to finish that arithmetic to feel it. It is real money, paid voluntarily, on a return nobody forced him to overpay. Multiply that instinct across a filing season and you have a quiet transfer from careful firms to nobody in particular, except the tax account.

Free Zone Corporate Tax UAE: The Other End Is Worse Than the Guides Say

If the slice error overpays, the breach error underplays, and it is the more dangerous of the two. The same mainland comparison that charges the slice also shrinks the breach. Exceeding the threshold, it says, means all income becomes subject to the 9% rate for that tax period. That tax period. Full stop. One year, then back to normal.

The careful accounts state Article 5(2) of Ministerial Decision No. 229 of 2025 in full: the person ceases to be a QFZP from the beginning of that tax period and for the subsequent four tax periods. The agent explainer says it. The rate-table guide says it in its breach row. The qualifying-income explainer says it. Five periods in total, not one. During those periods the business is taxed as an ordinary taxable person, with the AED 375,000 band that a QFZP never gets, on income that would otherwise have qualified at 0%.

Put the two errors together and you see the trap whole. Inside the limit, your guide charges you tax you do not owe. Outside the limit, your guide tells you the damage lasts a fifth as long as the decision says it does. A business planning on both errors will take risks it would never take on the real numbers: it will let the non-qualifying line drift, because a breach sounds like a one-year problem, and it will overpay in the years it stays inside, because the slice sounds taxable. Wrong in both directions is not a rounding issue. It is a pricing system built on a misread gate, the same pattern we pulled apart in our post on the WPS grace period that does not exist.

The four categories that really are 9% at any size

There is a real 9% bucket, and none of the slice-taxing guides draw it clearly. Only four categories are taxed at 9% regardless of size: income attributable to a domestic permanent establishment, income attributable to a foreign permanent establishment, immovable property income in the cases the decisions define, and non-qualifying intellectual property income. Those categories do not wait for the de minimis test. They are 9% from the first dirham, and they get no AED 375,000 band.

They also sit outside the ratio itself. Article 4(3) of Cabinet Decision No. 100 of 2023, as the agent explainer sets it out, excludes that revenue from both sides of the de minimis calculation. It cannot be sheltered by the limit, and it cannot blow the limit either. That distinction matters in practice. A property line wrongly dropped into the ratio can make a healthy position look like a breach. A mainland branch wrongly counted as ordinary other income can make a breach look like a slice. Bucket first, compute second. The order is the whole job, and it is the same discipline we described for zone status in our post on audit deadlines that change by zone: the label decides the treatment before the numbers start.

How the Buckets Should Be Built Before the Return

None of this needs a new system. It needs the revenue ledger built in the order the decisions use, while the year is still running, not reconstructed from invoices in the filing month.

• Test qualifying activities first. Map every revenue line against the qualifying activities in Article 2 of Ministerial Decision No. 229 of 2025, with the customer type the line actually has. An activity that qualifies with one customer may not qualify with another.
• Clear the always-9% categories next. Permanent establishments, immovable property and non-qualifying IP income come out of the ratio entirely, and are taxed at 9% on their own terms. Keep them in their own buckets, visibly, all year.
• Compute de minimis as a working paper, not a hope. Total revenue, non-qualifying revenue, the lower of 5% and AED 5 million, and the headroom left. File that paper with the return workings so the position can be defended without rebuilding it.
• Monitor headroom through the year. A sideline that is 1% of revenue in March can be 6% by November if the qualifying side stalls. The breach is dated from the start of the period, so a year-end discovery is already a five-period problem.
• Price formation on the real income mix. If a founder's model carries mainland, property or IP streams from day one, show the bucket map and the five-period breach cost before the zone is chosen, as we argued in our post on Dubai's bookkeeping panic. A zone chosen on a split that does not exist is a five-year decision made on a one-page error.

This is where bookkeeping stops being record-keeping and becomes tax position. The ledger is the first draft of the return. If the buckets are wrong in the books, they will be wrong in the filing, no matter how good the filing software is, which is the structural point we made in our post on what an AI tax advisor cannot do: a tool will split income exactly as it is told to, and the liability for the instruction stays with the person who gave it.

An honesty note on sources

Everything material here is attributed to the account that states it. The 0% treatment inside the limit, the AED 800,000 against AED 40 million worked example, the warning about booking 9% to be safe, the four always-9% categories and the exclusion of that revenue from both sides of the ratio are from Fastlane's de minimis explainer, published by an FTA-registered tax agent, which quotes Cabinet Decision No. 100 of 2023 and Ministerial Decision No. 229 of 2025, Articles 3 and 5(2). The rate table pricing non-qualifying income within de minimis at 9% on that specific income only, alongside its own correct five-period breach row, is from a QFZP guide on taxconsultantdubai.com, updated about 50 days ago. The 9% on everything else, from the first dirham, and the one-period breach wording are from a qualifying-income explainer on theaccntnt.com and a free zone versus mainland comparison summarised in the topic research. These are guides and practitioner accounts, not the decisions themselves. We have not priced a named company's slice or declared its status lost. Read Cabinet Decision No. 100 of 2023 and Ministerial Decision No. 229 of 2025, and bucket your own revenue lines against them, before you file on anyone's say-so, including ours.

The practical move is available today, and it costs nothing: open your draft return and find the small slice. If someone has put 9% on it, ask which bucket it sits in, and whether the gate was ever computed. If the answer is a split, you have found the most expensive instinct in free zone tax. Escrow's corporate tax accounting service buckets every revenue line before the return is built, computes the de minimis position as a filed working paper, and monitors headroom through the year. Start with a free corporate tax readiness assessment at escrowconsultinggroup.com, and bring your current guide with you. We will show you which side of the gate your slice is actually on.