For decades, "no corporate tax" was part of the UAE's appeal. That changed with the introduction of federal corporate tax, and by 2026 it is a routine part of running a business here. The good news: for most small businesses, the rules are more generous and easier to manage than the headlines suggest.
This clear, simple guide explains the 9% rate, who has to register, the valuable Small Business Relief, the key deadlines, and the practical steps to stay compliant without needing a finance qualification.
The basics: how corporate tax works in the UAE
UAE corporate tax is a federal tax on business profits. Its overall structure is simple:
- 0% on taxable income up to AED 375,000
- 9% on taxable income above AED 375,000
So if your business has a taxable profit of AED 500,000, the first AED 375,000 is taxed at 0%, and only the remaining AED 125,000 is taxed at 9%. The rate applies to profit, not revenue — your deductible business expenses reduce the taxable amount.
A separate, higher rate applies to very large multinational groups under the global minimum tax rules. For the vast majority of small and medium-sized businesses in the UAE, the 0% / 9% structure is what matters.
Who needs to register?
Corporate tax registration is broad in scope. In practice:
- Mainland companies fall within scope.
- Free zone companies also fall within scope and must register — although a Qualifying Free Zone Person that meets strict conditions may benefit from a 0% rate on qualifying income. Free zone status does not mean you can ignore corporate tax.
- Natural persons (individuals) carrying on a business or business activity in the UAE above a certain annual turnover threshold also need to register.
Even if you expect to pay 0%, you generally still need to register and file a return. Registering is not the same as paying tax — it is how you enter the system and declare your position.
Small Business Relief: the SME-friendly part
This is the provision most small businesses should understand. Small Business Relief lets eligible businesses whose revenue is at or below a certain threshold (AED 3 million) be treated as having no taxable income for that period — in effect no corporate tax due, with simplified obligations.
The key points:
- It is based on revenue, not profit.
- You must elect for the relief in your tax return — it is not automatic.
- It is currently available for tax periods up to a specific end date set by the Ministry of Finance, so check the current availability window.
- You still need to be registered and you still file a return to claim it.
For a genuinely small company, Small Business Relief can cut your tax and your compliance burden considerably — but only if you register and elect for it correctly.
Deadlines you cannot miss
Corporate tax runs on tax periods, usually aligned with your financial year:
- Registration must be completed within the timeframe the FTA sets for your category. Late registration carries a penalty.
- Filing and payment are generally due within nine months of the end of your tax period. For a financial year ending 31 December 2025, that puts the deadline in 2026.
Deadlines depend on your specific tax period and your registration category. Always confirm your exact dates through the FTA's EmaraTax portal — do not rely on a general date.
What is taxable — and what reduces your bill
Your taxable income starts from your accounting profit, then is adjusted under the corporate tax rules. In practice, for a small or medium-sized business:
- Genuine business expenses are generally deductible — rent, salaries, supplies, marketing and so on.
- Some expenses are restricted or disallowed, such as a portion of entertainment costs and certain non-business or personal items.
- Accurate bookkeeping is essential. A corporate tax return is only as reliable as the accounts behind it.
That is why clean accounting throughout the year matters more than ever: corporate tax turns your bookkeeping from a "nice to have" into the basis of a legal filing.
A simple compliance checklist for small and medium-sized businesses
- Register for corporate tax with the FTA within your deadline — even if you expect to pay 0%.
- Keep sound accounting records all year, not only at the end of it.
- Separate business and personal spending so your deductible expenses are clean.
- Check your eligibility for Small Business Relief and elect for it in your return if you qualify.
- File your return and pay any tax within nine months of the end of your period.
- Keep your documentation to support your figures in case the FTA asks.
How Xrero keeps you ready for corporate tax
Corporate tax compliance succeeds or fails on your books. Xrero gives UAE small and medium-sized businesses accurate, real-time accounting in AED — tracking income, expenses and profit correctly all year — so the numbers are genuinely ready when filing time comes.
And because Xrero also handles VAT 201 returns and Wage Protection System (WPS) payroll in the same system, your VAT, payroll and profit data all agree from a single source of truth. That is the difference between a quiet year end and a frantic spreadsheet rebuild.
Xrero helps you keep accurate records and prepare the numbers. Registering, filing and paying corporate tax is completed by you (or your tax adviser) through the FTA's official channels. For your own situation, consult a qualified UAE tax specialist.
Frequently asked questions
What is the corporate tax rate in the UAE in 2026? 0% on taxable income up to AED 375,000 and 9% on anything above that. A higher rate applies only to very large multinational groups under the global minimum tax rules.
Do free zone companies pay corporate tax? Free zone companies must register and they fall within scope. A Qualifying Free Zone Person that meets strict conditions may have a 0% rate on qualifying income, but free zone status does not exempt you from registering and filing.
What is Small Business Relief? It is a provision that lets eligible businesses whose revenue is at or below AED 3 million be treated as having no taxable income for that period, reducing both the tax and the compliance burden. You must register and elect for it in your return.
Do I need to register if I am going to pay 0%? Generally, yes. Registration and filing are required even when the tax due is zero — including when you claim Small Business Relief.
When is the corporate tax return due? Usually within nine months of the end of your tax period. Confirm your exact deadline through EmaraTax, based on your financial year and your registration.
Keep your books corporate tax ready all year. See how Xrero works or talk to our team.
Related reading: How to file a VAT 201 return in the UAE · UAE e-invoicing guide 2026