Written for accounting practices rather than for one finance team. Businesses under AED 50m must appoint an Accredited Service Provider by 31 March 2027 and be live on 1 July. Most coverage quotes the July date; March is the one that constrains a book of forty clients, and the clients with no accounting system at all are the whole problem.
Ministerial Decision No. 131, issued on 7 August 2026, gives small businesses three more years at zero corporate tax and keeps the AED 3m threshold. You still have to file, the relief is still an election you can miss, and the prior-period test that disqualifies you permanently now spans twice as many years.
Cabinet Decision 129 of 2025 replaced the old compounding penalty structure on 14 April 2026. The headline is that late payment now costs 14% per annum rather than 4% per month, which cuts worst-case exposure dramatically. Here is what changed and what it means if you are already behind.
The VAT201 form is short, but the boxes are easy to misread and a wrong figure in box 9 or box 10 is the kind of thing that surfaces two years later in an audit. A practical walkthrough of each box, what belongs in it and the mistakes that recur.
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