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Corporate tax and VAT in the UAE: who registers, and when

The UAE stopped being a no-tax jurisdiction some time ago, and the most expensive mistake is not underpaying. It is not registering, by a business that would have owed nothing anyway.

Tax7 min readUpdated 18 August 2026

Corporate tax and VAT are separate regimes with separate registrations, separate returns and separate deadlines. Businesses conflate them constantly, usually in the direction of assuming that being small exempts them from both. Being small can exempt you from paying. It rarely exempts you from registering.

The two, side by side

VATCorporate tax
Rate5% on most goods and services0% up to the threshold, 9% above it
Registration triggerTaxable supplies over the mandatory threshold in the last 12 months, or expected in the next 30 daysBeing a taxable person — including many businesses with no tax to pay
Voluntary registrationPossible at half the mandatory thresholdNot applicable
ReturnsPeriodic, usually quarterly or monthlyAnnual, after the financial year ends
RecordsInvoices and returns kept for the statutory periodFinancial statements for the tax period

Why registration matters more than the rate

Penalties in this system attach to process, not to profit. A business that files late, or never registers, is penalised even when the tax due is zero. That is the part which surprises small companies: the first bill many of them see is a fine for a return that would have been empty.

What to do, in order

  1. 1Fix your financial year — the corporate tax period follows it, and the filing deadline is counted from its end.
  2. 2Register for corporate tax through the Federal Tax Authority portal and keep the certificate with the licence.
  3. 3Track your rolling twelve-month turnover so you see the VAT threshold coming rather than crossing it unnoticed.
  4. 4Register for VAT when the threshold is met, and start issuing compliant tax invoices from day one of registration.
  5. 5Keep books continuously, not at year end — reconstructing a year from a bank statement is how deadlines get missed.
  6. 6File the return, pay any tax due, and archive the records for the statutory retention period.
Modern glass commercial buildings in a landscaped UAE business park with palm trees
Operating in a free zone does not automatically exempt a company from tax registration.

Free zone companies

A free zone company is not automatically outside the system. There is a preferential regime for qualifying income, with conditions about the type of activity and substance in the zone, and it has to be earned rather than assumed. The registration obligation applies regardless.

Questions people ask

We had no revenue this year. Do we still file?

Yes. A dormant or loss-making registered business still files, and a nil return filed on time costs nothing. A nil return filed late does not.

Is VAT charged on services exported outside the UAE?

Often at zero rate rather than exempt, which sounds the same and is not: zero-rated supplies still count towards your registration threshold and still appear on the return.

When is the corporate tax return due?

Within nine months of the end of the tax period. A financial year ending 31 December therefore falls due the following September — that is the date worth putting in the calendar today.

Can you handle the registration and the filing?

Yes — registration, the periodic VAT returns and the annual corporate tax filing, with the records kept in a form that survives a query later.

This article is general information, not legal or financial advice. Rules change — confirm your own position with a qualified professional before deciding.

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