Take a UAE business with a December 31 financial year-end. The owner has until September 30, 2025 to submit the 2024 corporate tax return. A business on a June 30 year-end has until March 31, 2026 for the period ending June 30, 2025.
The rule is simple. File within nine months of your financial year-end. Miss it and penalties start at AED 500 per month — even if you owe zero tax.
Corporate tax in the UAE is self-assessed. No bill arrives. No reminder comes. If you miss the deadline, you find out when the penalty lands.
Many SME owners are still mapping out how this works. The regime came into effect on June 1, 2023. Many businesses are filing their first return now or will do so in the coming months. This guide walks through every step of filing on the EmaraTax portal.
The Basics: Who Needs to File
UAE Corporate Tax applies at 9% on taxable income above AED 375,000. This applies to financial years beginning on or after June 1, 2023. All entities — mainland and free zone — must register with the FTA and file an annual return within nine months of their financial year-end.
There are no exceptions based on profit or activity level.
Entity Type
Must File?
Tax Rate
Mainland company — profit above AED 375,000
Yes
9% on excess
Mainland company — profit below AED 375,000
Yes (nil return)
0%
Mainland company — making a loss
Yes (nil return)
0%
Free zone — qualifying income
Yes (nil return)
0%
Business claiming Small Business Relief
Yes (SBR election required)
0% if elected
A nil return must still be filed. A late filing penalty of AED 500 per month applies regardless of whether any tax is owed.
For context on how corporate tax connects to your bookkeeping obligations, read our guide on bookkeeping services in Dubai.
A Quick Note on Small Business Relief
Before the filing steps, it is worth understanding Small Business Relief. It affects a significant number of SMEs.
Under Ministerial Decision No. 73 of 2023, businesses with turnover below AED 3 million can elect to have their taxable income treated as zero. This relief covers tax periods from June 1, 2023 to December 31, 2026. It is not automatic. You must elect it on your return.
There is a catch. Once your turnover exceeds the threshold and you post a profit, you cannot carry forward any losses from the relief period. Plan accordingly before electing.
The FTA challenges SBR elections during audits. Make sure your revenue figure is accurate and verifiable before you file the election. An incorrect SBR claim creates a larger problem than the original liability.
Step 1: Confirm Your Registration and TRN
Start here. Before you can file anything, you need a Tax Registration Number (TRN) for corporate tax purposes.
CT registration is separate from VAT registration. Both sit on the same EmaraTax portal, but they are different registrations. A VAT TRN does not mean you are registered for corporate tax. Many businesses assume it does — that assumption leads to missed deadlines and AED 10,000 penalties.
Businesses incorporated after March 1, 2024 must register within three months of incorporation.
Log in to EmaraTax using your UAE Pass or registered credentials. Go to the Corporate Tax section. Check that your entity details are accurate — trade licence number, financial year-end, and legal entity type. If any of this is wrong, the return form will not display the correct sections or available elections.
Fix registration errors before you start filling in the return. Correcting them mid-filing creates unnecessary complications.
For a full walkthrough of the TRN registration process, see our guide on how to get your UAE Tax Identification Number.
Step 2: Prepare Your Financial Statements
Corporate Tax is calculated on your accounting profit, adjusted for CT-specific items. Your accounts must comply with IFRS or IFRS for SMEs.
This means your profit and loss account, balance sheet, and cash flow statement must be finalised before you open the return form. Businesses with turnover above AED 50 million — and Qualifying Free Zone Persons — must have audited financial statements. For most SMEs below that threshold, an audit is not mandatory. It is still advisable if you expect close FTA scrutiny.
Before sitting down with your accountant, pull together:
- General ledger and trial balance
- Monthly bank reconciliations
- Quarterly payroll reports
- Documentation for significant transactions
- Documentation for any related-party transactions
Having these ready makes the process faster and reduces the risk of errors in your return. Businesses using cloud accounting platforms like Xero, QuickBooks, or Zoho Books can export most of this documentation directly. Expense management tools like Alaan also provide transaction-level records that support accurate income and expense categorisation at the return stage.
Step 3: Calculate Your Taxable Income
Start with your accounting net profit or loss for the year. Then work through the adjustments.
Add back non-deductible expenses:
- Fines and penalties paid to any authority
- Personal costs charged to the business
- 50% of entertainment expenses
- Amounts paid to related parties above arm's-length pricing
Then deduct exempt income:
- Qualifying dividends
- Certain capital gains meeting exemption criteria
Apply the AED 375,000 threshold. Calculate tax at 9% on the excess.
This adjustment process is where most errors occur. Common problems:
Error Type
What Goes Wrong
FTA Consequence
Misclassified personal expenses
Personal costs coded as business expenses
Disallowed deduction, back-tax, penalties
Unadjusted related-party transactions
Payments above arm's-length not adjusted
Reassessment plus interest
Incorrect income exemption
Non-qualifying income treated as exempt
Additional tax liability
Incorrect SBR election
Revenue above threshold or unverifiable
SBR disallowed, full tax liability applied
Get the adjustments right the first time. If the FTA audits your return and finds these errors, they reassess your liability — plus penalties and interest on top. For guidance on what qualifies as a deductible expense, the UAE Ministry of Finance publishes detailed corporate tax guidance.
Step 4: Complete the CT Return on EmaraTax
Log in to EmaraTax and open the Corporate Tax return for the relevant tax period. The form is structured according to your entity type and the elections you make.
Work through the return in this order:
- Confirm your entity details and residency status
- Enter your financial data from your finalised statements
- Disclose any related-party transactions
- Make any elections — including Small Business Relief if applicable
- Upload financial statements and all supporting schedules
- Complete transfer pricing disclosures in the separate schedule if required
- Review every field before final submission
Check everything before you submit. EmaraTax does not allow direct resubmission of a corrected return. If you find a significant error after submission, you will need to file a voluntary disclosure — a more involved process that carries its own implications and penalties.
Step 5: Submit and Pay
After filing, pay any tax due through the EmaraTax payment gateway. Payment methods include bank transfer, e-Dirham, and credit or debit card. Save the payment receipt once it is issued.
The payment deadline is the same as the filing deadline. Nine months from your financial year-end. There is no separation between the two dates and no discretion on timing.
Financial Year-End
Filing and Payment Deadline
December 31, 2024
September 30, 2025
March 31, 2025
December 31, 2025
June 30, 2025
March 31, 2026
September 30, 2025
June 30, 2026
If you overpaid or paid in error, a refund can be requested through EmaraTax.
What If You Find an Error After Filing?
Errors found after submission must be corrected through a voluntary disclosure on EmaraTax. A voluntary disclosure is a formal declaration to the FTA of the error and the correct calculation.
The minimum threshold for a voluntary disclosure is a tax difference of AED 10,000 or more. Differences below that can be corrected on your next return.
Timing matters significantly. A proactive voluntary disclosure — filed before the FTA identifies the issue — attracts lower penalties than an error found during an FTA audit. If you discover a mistake, act on it quickly. Waiting costs more.
Penalties to Know
The penalty structure is straightforward. It is also costly.
Violation
Penalty
Late registration
AED 10,000 fixed penalty
Late filing
AED 500 per month from due date
Late payment
14% per year on outstanding amount, compounded monthly
Voluntary disclosure (proactive)
Reduced penalty rate
Error found during FTA audit
Full penalty rate plus interest
There is no grace period. The FTA does not issue advance warning notices before penalties begin accruing.
There is currently a penalty waiver initiative in place. Businesses that have not yet registered can do so by July 31, 2026 and have the AED 10,000 late registration penalty waived. If you have been putting registration off, this window is worth acting on immediately.
A Few Practical Points for SME Owners
Keep your EmaraTax login credentials secure. Make sure your authorised signatory details are current on the portal. If a team member who previously had EmaraTax access has left the business, remove or update their access before your next filing deadline.
Keep a copy of everything you submit — the filed return, financial statements, and all supporting schedules. The FTA can request these documents during an audit up to seven years after the end of the relevant tax period.
Corporate tax is self-assessed. The FTA will not send a bill. No reminder arrives before the deadline. If you miss the filing window, you will not find out until the penalty is already accruing. Build the nine-month deadline into your financial calendar from the day your financial year closes. Treat it like any other non-negotiable business deadline. Because it is.
For a full picture of how corporate tax connects to your VAT obligations and bookkeeping requirements, see our complete guide to UAE compliance obligations.
Frequently Asked Questions
Who needs to file a UAE Corporate Tax return? Every entity registered in the UAE — mainland or free zone — must file an annual corporate tax return through EmaraTax within nine months of their financial year-end. This includes businesses that made a loss, businesses claiming Small Business Relief, and free zone companies on the 0% qualifying income rate.
What is the UAE Corporate Tax filing deadline? Nine months from the end of your financial year. For a December 31 year-end, the deadline is September 30 of the following year. For a June 30 year-end, it is March 31 of the following year. The FTA's deadline checker can confirm your specific date.
Is Corporate Tax registration the same as VAT registration? No. They are separate registrations. Both are managed through the EmaraTax portal, but having a VAT TRN does not mean you are registered for Corporate Tax. Each requires its own application and TRN.
What is Small Business Relief and how do I claim it? Small Business Relief allows businesses with turnover below AED 3 million to elect zero taxable income for tax periods from June 1, 2023 to December 31, 2026. It is not automatic — you must elect it on your return. The FTA audits SBR elections, so your revenue figures must be accurate and verifiable.
What happens if I miss the Corporate Tax filing deadline? Penalties start at AED 500 per month from the due date, regardless of whether any tax is owed. Late payment attracts 14% per year on the outstanding amount, compounded monthly. There is no grace period and no advance warning from the FTA.
Do free zone companies need to file a Corporate Tax return? Yes. All free zone entities must register and file. Free zone companies eligible for the 0% rate on qualifying income must still file a nil return. Failure to file attracts the same AED 500 per month late filing penalty.
What is a voluntary disclosure and when do I need one? If you find a significant error in a submitted return — a tax difference of AED 10,000 or more — you must file a voluntary disclosure through EmaraTax. Acting proactively before the FTA identifies the issue attracts lower penalties than errors found during an audit.
What financial statements do I need to file a Corporate Tax return? You need a finalised profit and loss account, balance sheet, and cash flow statement prepared in accordance with IFRS or IFRS for SMEs. Businesses with turnover above AED 50 million and Qualifying Free Zone Persons must have audited financial statements.
How long do I need to keep Corporate Tax records? Seven years from the end of the relevant tax period, as required under UAE Corporate Tax Law. The FTA can request records during an audit up to seven years after the period ends.
Can I file my own Corporate Tax return without an accountant? Yes — the EmaraTax portal is accessible to any registered user. However, the taxable income adjustments, related-party disclosures, and SBR election process carry real risk if handled incorrectly. Most SME owners benefit from professional support, particularly for their first return. See our corporate tax return filing service for what that looks like in practice.
Don't Let Your First Corporate Tax Return Be Your Most Expensive One
The first return is where most errors happen. Not because the rules are unclear — but because the adjustments, elections, and portal requirements all land at once on a deadline that does not move.
The Finanshels team has filed corporate tax returns for UAE businesses across mainland and free zones since the regime launched. We handle the financial statement review, taxable income calculation, EmaraTax submission, and FTA correspondence — so the return goes in correctly the first time.
No last-minute scrambles. No penalty surprises. Just a clean return, filed on time.
See how Finanshels handles corporate tax filing — and find out what getting it right looks like for a business your size.
