The Corporate Tax return deadline for most UAE businesses is 9 months
after the end of their financial year. For companies with a December
year-end — which is the majority — that means 30 September of the
following year. The return is not just a summary of the financial
statements. It is a separate calculation that starts with accounting
profit and applies UAE-specific adjustments to arrive at taxable income.
Getting those adjustments wrong — or missing them entirely — is where
most first-year CT returns have problems.
This guide covers how UAE Corporate Tax returns work, what they must
contain, the common errors that create liability, and the penalties that
apply.
How UAE Corporate Tax
Returns Work
The Tax Period
The UAE Corporate Tax period corresponds to the financial year. For
most UAE businesses, that is 1 January to 31 December. For businesses
incorporated mid-year, or those operating on a non-calendar financial
year, the first tax period may be longer or shorter than 12 months.
The FTA assigns the tax period at registration. Changing the
financial year requires FTA approval and cannot be done
retrospectively.
The Filing Deadline
The Corporate Tax return must be filed within 9 months of the
end of the tax period. For a December year-end, the deadline is
30 September of the following year. For other year-end dates, the
deadline shifts accordingly — a March year-end means a 31 December
deadline.
The return must be filed and any tax payable must be settled by the
same deadline. There is no separate payment deadline that follows the
filing deadline.
All filings are made through the FTA’s EmaraTax portal at
tax.gov.ae.
Source: Federal Decree-Law No. 47 of 2022, Article
53.
From Accounting Profit
to Taxable Income
The CT return does not simply replicate the financial statements. It
starts with accounting profit — the net profit or loss per the financial
statements prepared under IFRS or IFRS for SMEs — and applies a series
of adjustments required by the Corporate Tax law.
Exempt Income
Certain items included in accounting profit are excluded from taxable
income:
Dividends and profit distributions received from
UAE-resident juridical persons, and from foreign subsidiaries in which
the business holds at least 5% ownership for an uninterrupted 12-month
period, qualify for the Participation Exemption. These amounts are
excluded from taxable income.
Capital gains on the disposal of shares or similar
equity interests that qualify for the Participation Exemption are also
excluded, subject to the same conditions.
Amounts that appear in accounting profit but qualify for these
exemptions must be backed out in the CT calculation.
Non-Deductible Expenditure
Not every expense that reduces accounting profit is deductible for CT
purposes. The following are not deductible:
- Interest expense that exceeds 30% of EBITDA, for
businesses with net interest above AED 12,000,000 per period (the
General Interest Deduction Limitation Rule). Below that threshold,
interest is generally deductible subject to the arm’s length
condition. - Fines and penalties imposed by government
authorities. These are disallowed regardless of whether they relate to a
business activity. - Bribes and illicit payments — disallowed as a
matter of public policy. - Dividends and profit distributions paid — these are
not deductible expenses. - Personal expenditure or amounts not incurred for
business purposes.
Expenses paid to related parties — management fees, royalties, rent,
interest — must meet the arm’s length standard. The FTA can challenge
deductions where related party charges do not reflect what unrelated
parties would have agreed.
Losses
Unutilised tax losses from prior periods can be carried forward and
offset against taxable income in future periods, up to a maximum of
75% of taxable income in any single period. Losses
carried forward do not expire, but the 75% cap means a profitable
business will always pay some tax in years where it has brought-forward
losses.
Source: Federal Decree-Law No. 47 of 2022, Articles
20–39.
The Tax Calculation
Once adjusted taxable income is established, the tax is
straightforward:
- 0% on taxable income up to AED
375,000 - 9% on taxable income above AED 375,000
For a business with AED 1,000,000 in taxable income, the tax is 9% ×
(1,000,000 − 375,000) = AED 56,250.
The AED 375,000 threshold applies per taxable person. It is not
shared across a group unless the group has formed a Tax Group, in which
case the threshold applies once to the consolidated group.
Small Business Relief
Businesses with revenue not exceeding AED 3,000,000
in the relevant tax period can elect for Small Business Relief. The
election treats taxable income as zero for that period — effectively a
0% rate on the full amount.
The election is made in the CT return. It is available per period, so
a business that exceeds AED 3,000,000 in revenue in one year can still
elect the relief in a subsequent year where revenue falls back below the
threshold.
Small Business Relief is not available to Qualifying Free Zone
Persons or to businesses that were members of a Multinational Enterprise
group.
Transfer Pricing
Transactions between related parties — including transactions with
parent companies, subsidiaries, sister entities, and individuals who
control the business — must be conducted at arm’s length and must be
disclosed in the CT return.
For businesses whose total related party transactions exceed AED
40,000,000 per year, a formal Transfer Pricing Disclosure Form must be
filed with the return. For businesses above the threshold set for
Country-by-Country Reporting — broadly, UAE-headquartered Multinational
Enterprise groups with consolidated revenue above AED 3,150,000,000 —
additional reporting obligations apply.
Even where the formal transfer pricing form is not required, the
arm’s length obligation applies to every related party transaction. The
FTA can challenge intercompany charges that do not reflect market rates
and reassess the tax accordingly.
Source: Federal Decree-Law No. 47 of 2022, Article
34; Ministerial Decision No. 97 of 2023 (Transfer Pricing).
Penalties for
Late Filing and Incorrect Returns
Late Filing
Filing the CT return after the 9-month deadline attracts a fixed
penalty:
- First offence: AED 500
- Repeat offence within 24 months: AED 1,000
Source: Cabinet Decision No. 40 of 2017, as amended
by Cabinet Decision No. 129 of 2025 (effective 14 April 2026).
Incorrect Return
Submitting a return with an error that understates tax liability
carries a penalty of AED 500 per incorrect return
(reduced from AED 3,000 under Cabinet Decision No. 129 of 2025). The AED
500 penalty is separate from the obligation to pay the correct tax and
the 14% per annum interest that accrues on underpaid amounts from the
original due date.
Late Payment
Tax not paid by the filing deadline accrues interest at 14%
per annum, calculated monthly on the outstanding balance. This
replaced the prior structure of 2% immediately and 4% per month,
effective 14 April 2026.
Late Registration
Businesses that failed to register by the applicable deadline face an
AED 10,000 penalty for late registration, as covered in
the separate registration article.
Correcting a Past
Return: Voluntary Disclosure
If an error in a previously filed CT return is identified, the
correct process is a voluntary disclosure through EmaraTax.
Before FTA audit notification: 1% per month on the
tax difference, from the original due date. This is substantially less
than the pre-audit cost of waiting to be discovered.
After FTA audit notification: 15% fixed on the tax
difference, plus 1% per month from the original due date.
Errors below AED 10,000 can be corrected in the next CT return as an
adjustment. Errors above AED 10,000 require a formal voluntary
disclosure.
What Gets Picked Up at Audit
Participation Exemption claimed without
documentation. The exemption on dividends and gains from
foreign subsidiaries depends on a 5% minimum ownership held for 12
uninterrupted months. Where the holding period or ownership percentage
is not documented, the FTA will challenge the exemption.
Related party expenses at non-arm’s length rates.
Management fees paid to a parent, interest on shareholder loans, and
rent paid to a connected party that exceed market rates. The FTA
benchmarks these and disallows the excess.
Personal expenses run through the business. Costs
that have no nexus to the business activity — vehicle costs for
non-business use, personal insurance, expenses for owners’ private
properties — are not deductible. These are among the first items
reviewed.
Loss carryforward applied at more than 75%.
Businesses that offset the full brought-forward loss against taxable
income, without applying the 75% cap, understate their tax
liability.
Small Business Relief elected where revenue exceeded AED
3,000,000. Revenue for SBR purposes includes all revenue
sources. Businesses with multiple revenue streams that individually
appear below the threshold but collectively exceed it cannot elect the
relief.
What Good CT Return
Preparation Looks Like
A well-prepared CT return starts before the financial year ends.
Related party transactions are priced and documented during the year.
Expenses are categorised correctly in the accounting records, not
reclassified at year-end. The financial statements are finalised before
the CT workpapers are prepared, and the CT adjustments are prepared from
the statements — not from a summary.
The return itself is a document that must stand up to FTA scrutiny.
Every number should be traceable to the source, every election should be
supportable, and every related party charge should have documentation
ready if it is requested.
The businesses that struggle with CT returns are those that treat the
Corporate Tax calculation as something to sort out in September. By
then, the records exist or they do not. The transactions happened the
way they happened. There is nothing left to fix.
Prepared by BPOAS. This article provides general guidance and
does not constitute specific tax advice. Businesses should seek advice
from a qualified UAE tax professional on their individual
circumstances.