UAE corporate tax registration: who, when and the penalties

UAE corporate tax registration is required for almost every business, even one that will owe nothing, and it is a dated obligation with a penalty for lateness. The rate is 9 percent on taxable profit above AED 375,000 and 0 percent below. Free zone companies register too, then claim their status.

Who has to register for UAE corporate tax?

Broadly, all taxable persons carrying on business in the UAE, including mainland and free zone companies and, in defined cases, individuals running a business. The scope and the obligation are set out by the Federal Tax Authority. A company that expects to stay below the AED 375,000 threshold every year still registers and still files. Registration is about being in the system, not about owing tax, and that distinction is where deadlines get missed.

When is the registration deadline?

The Federal Tax Authority sets registration deadlines, and late registration carries an administrative penalty. Treat your deadline as a fixed date tied to your entity, not as something to handle once you are profitable. Because the exact timing depends on your circumstances and the current rules, the safe step is to confirm your specific deadline against your trade licence rather than relying on a general date, and to register with margin rather than at the edge of the window.

Do free zone companies register too?

Yes. A free zone company registers for corporate tax like any other, even when it expects a 0 percent rate on qualifying income as a Qualifying Free Zone Person. The 0 percent rate is conditional on real substance and qualifying activity; registration is unconditional. A free zone address is not an exemption from registering, and assuming it is one is a route to a late-registration penalty on top of any tax dispute.

What records do I need for corporate tax?

You need accounting records and supporting documents sufficient to establish your taxable income, kept for the statutory retention period. In practice that means proper bookkeeping through the year, a clear separation of business and personal expenses, and evidence behind the figures on your return. Reconstructing this under audit pressure is far more expensive than keeping it as you go, and the 2026 tightening of the Tax Procedures framework raised the cost of incomplete records.

What should a founder do first?

Register, on time, whatever your expected profit. Confirm your deadline against your licence, get your bookkeeping to a standard that can support a return, and decide whether Small Business Relief, now available for periods ending on or before 31 December 2029 for revenue up to AED 3 million, fits your position. Then diarise the filing date. We confirm your deadline, set up the record-keeping and handle the registration and return so none of it is left to chance.