Scope and impact assessment
We confirm whether your group meets the revenue threshold, which UAE entities are constituent entities, and what the DMTT means for your numbers. Groups near the threshold get a clear in-or-out answer instead of a hedge.
If your group's consolidated revenue is near or above EUR 750 million and you have entities in the UAE, the 15% global minimum tax now applies to you. The UAE collects it through the Domestic Minimum Top-up Tax (DMTT), and registration deadlines are already running.
Bestax Chartered Accountants provides global minimum tax advisory in Dubai for multinational groups. As an FTA Approved Tax Agency (No. 300086921), our cross-border tax team assesses whether your group is in scope, models your effective tax rate under the GloBE rules, and manages DMTT registration and filings with the FTA.
Fixed Fees In Writing Senior Review On Every Deliverable FTA Approved Tax Agency Rated 4.8/5 by 200+ Clients
Tell us your group's consolidated revenue and which entities sit in the UAE. We will confirm whether the DMTT reaches your group, and send you a fixed written quote before any work starts.
Our service covers the full DMTT cycle for UAE entities of large multinational groups: scope assessment against the EUR 750 million test, effective tax rate modelling, safe harbour analysis, EmaraTax registration, top-up tax return support, and coordination with your group's Pillar Two reporting abroad.

The six workstreams we run
We confirm whether your group meets the revenue threshold, which UAE entities are constituent entities, and what the DMTT means for your numbers. Groups near the threshold get a clear in-or-out answer instead of a hedge.
The 15% test runs on GloBE rules (the OECD's global minimum tax framework), not on your accounting profit or your UAE corporate tax return. We calculate your jurisdictional effective tax rate the way the rules require, so you know your exposure before the FTA does.
Transitional safe harbours and the de minimis test can strip most of the compliance burden away for entities that qualify. We test your eligibility first, because the cheapest DMTT computation is the one you don't have to run in full.
We handle DMTT registration through EmaraTax and support the preparation and filing of top-up tax returns, so deadlines are met without pulling your finance team off their day jobs.
Your UAE position feeds your parent company's Pillar Two reporting, and their rules can claw back tax the UAE doesn't collect. We align the UAE workstream with head office, which pairs naturally with cross-border tax structuring in the UAE where the group's setup itself needs attention.
Free zone entities are fully inside DMTT scope, and a 0% incentive can be exactly what triggers top-up tax. We quantify that effect, alongside QFZP tax advisory in the UAE for entities relying on free zone status.
The DMTT applies to entities in the UAE that belong to multinational groups with consolidated global revenue of EUR 750 million or more in at least two of the four preceding financial years. It took effect for financial years starting on or after 1 January 2025.
That includes
If your group sits below the threshold, the DMTT doesn't apply to you, and we'll tell you that plainly rather than sell you a project you don't need.
In-scope groups must register for the DMTT with the FTA and file top-up tax returns. Registration is due within seven months of the end of the first in-scope financial year, with a transitional deadline of 30 November 2026 announced for early periods.
| Obligation | Timing |
|---|---|
| DMTT applies from | Financial years starting on or after 1 January 2025 |
| DMTT registration | Within seven months of the first in-scope financial year end (transitional deadline: 30 November 2026) |
| First top-up tax return | 30 June 2027 for calendar-year groups whose first in-scope year is 2025 |
These dates are new, and new dates move. Deadlines this new tend to move as the FTA issues further decisions. We track them for our clients, and we confirm the dates that apply to your specific financial year during the scope assessment.
The engagement follows a fixed sequence: a short call, a scope assessment, a written quote, then the modelling, registration and filing work, with your group's reporting calendar driving the timetable.
Use the quote form or schedule a free 20-minute call. Our team replies within 30 minutes during business hours.
We assess your group structure, revenue history and UAE entities against the DMTT tests.
You receive a clear fee in writing for the agreed scope before any work starts.
We request the consolidated financials, entity data and tax information the GloBE computations need, in one structured list.
We calculate your jurisdictional effective tax rate, test the reliefs, and report your exposure with a senior accountant's review.
We register the group for DMTT through EmaraTax, support the top-up tax return, and coordinate outputs with your head office reporting.
One step starts the process. Request a quote through the form or book a free 20-minute call, and our cross-border tax team will assess your group's DMTT position and send you a fixed written quote.
We price DMTT work as a fixed fee, agreed in writing before work begins. The fee depends on your group structure, the number of UAE entities, and whether safe harbours apply, so we confirm it after the scope review.
What you can rely on
For groups that qualify for safe harbours, the work shrinks substantially, and so does the fee. That's another reason the scope assessment comes first.
Bestax is an FTA Approved Tax Agency (No. 300086921) with 10+ years in Dubai, 35+ ACCA and ICAEW trained accountants, operations in four countries, and a 4.8/5 rating across 200+ Google reviews. Senior accountants review every DMTT deliverable before it goes out.

Why that matters for a global minimum tax engagement
FTA Approved Tax Agency status means we deal with the FTA directly on registrations, filings and queries as your registered tax agent in Dubai, so nothing stalls in translation between your group and the regulator.
A cross-border tax practice, not a generalist desk. DMTT sits on top of corporate tax services in the UAE and interacts with transfer pricing services in the UAE, and our team runs all three, so your numbers stay consistent across every filing.
Operations in four countries means we work to group reporting calendars and head office expectations, not just local deadlines.
Senior review on every deliverable protects you where it counts: an ETR computation is only useful if it survives scrutiny.
A physical office in Business Bay at Damac Executive Bay Tower B puts your adviser in the same city as your UAE entities, with everything also available remotely.
A DMTT computation is only as sound as the corporate tax, transfer pricing and free zone positions underneath it. The same team runs all of them.
Where the group's setup itself needs attention rather than just its reporting — entity and ownership options compared before anything is incorporated.
For entities relying on free zone status, whose 0% incentive can be the very thing that triggers top-up tax for the group.
The regime the DMTT sits on top of. Separate rules, separate filings, and one team keeping the two consistent.
The intercompany numbers a GloBE computation is built from, benchmarked and documented to the same standard.
An FTA approved tax agency acting for you before the authority, so registrations, filings and queries are handled directly.
Groups and finance teams across the UAE on working with our tax practice.

Had my first corporate tax filing done through Bestax. They offered a tax planning session that was extremely helpful, especially because I was unsure what expenses could be deducted legally. They kinda guided me through the whole process because, as a healthcare professional, I had no clue how things work around here.
I'm very pleased with the support provided by Athira and her team in completing my Transfer Pricing report and filing the Corporate Tax returns for my company. They are highly responsive, and the quality of their work and reports is truly excellent.
Very smooth and efficient service to open a freezone company. Even while sitting in canada. They are great. Highly highly recommend.
Bestax have been managing my accounts for the past 1 year now and I must say they do an amazing job. My tax returns are always on time and I never faced any penalty.
Maham guided me through the business license renewal process. She even flagged upcoming compliance changes I had no clue about. It’s that extra attention to detail that makes Bestax stand out.
Anusha at Bestax keeps our financials in top shape. Her budgeting advice has improved our cash flow significantly. Highly reliable team!
Read these and more on Bestax on Google (opens in a new tab)
If your question is not here, ask it directly.
The DMTT applies to UAE entities of multinational groups with consolidated global revenue of EUR 750 million or more in at least two of the four preceding financial years. It applies for financial years starting on or after 1 January 2025.
Yes. Free zone entities inside an in-scope group are covered, and a 0% or 9% incentive can be the very thing that pulls the group's UAE effective tax rate below 15% and triggers top-up tax. We quantify that impact before it becomes a surprise.
No. UAE corporate tax and the DMTT are separate regimes. Corporate tax applies to your UAE taxable income at its own rates, while the DMTT tops the group's UAE effective tax rate up to 15% under GloBE rules. In-scope groups deal with both.
We start with your group's consolidated revenue for the last four financial years, the group structure, and basic data on each UAE entity. For full modelling we then request financial and tax data through one structured list, so your team isn't drip-fed requests.
Late registration exposes the group to FTA penalties, and it leaves the harder work (the computations and the return) compressed into less time. Registering early costs nothing extra and removes the deadline risk, so we handle it as one of the first steps.
We charge a fixed fee, confirmed in writing after the scope review. The amount depends on your structure, the number of UAE entities and whether safe harbours apply. The initial 20-minute call is free and carries no obligation.
Request a quote through the form or book a free 20-minute call through our appointment page. You can also call +971 4 585 3215 or email info@bestaxca.com. Our team replies within 30 minutes during business hours, Monday to Saturday, 9:00 am to 8:00 pm.
The groups that handle Pillar Two well are the ones that scoped it early, claimed the reliefs they qualified for, and registered before the deadline crowded them. Put your UAE workstream with an FTA approved tax agency in Dubai, for a fixed fee you approve in advance.
Which areas do we cover?
We advise on the global minimum tax from Dubai for entities across the UAE, mainland and free zone, and coordinate with group head offices and advisers internationally. Meetings run at our Business Bay office or remotely across time zones.