Find the Gaps Before Your UAE Corporate Tax Filing

• 06 September, 2026
• By Safwan, Managing Partner
• Tax Compliance

Last reviewed 6 September 2026 by the Exiloz tax team against the UAE legislation in force on that date. Tax law moves — confirm any figure against tax.gov.ae before you act on it.

A return can be wrong before you open EmaraTax

The filing screen is the last step, not the review. A company can carry the wrong tax period, copy accounting profit into the return without adjustments, treat a group invoice as proof, or claim the free-zone 0% rate without testing each income stream. Those gaps sit in the working papers. This UAE corporate tax health check is for the owner who wants the filing pack challenged while there is still time to correct it, not after the FTA asks for the trail. If you would rather not handle this in house, this is what our corporate tax health check covers.

A corporate tax return is a self-assessment. The business decides what belongs in the return, supports the calculation and pays what is due. That makes the review before filing more valuable than a quick glance at the final tax number.

Gap one is a filing date you have not tested

Dates are not estimates.

The Federal Tax Authority says a Corporate Tax Return and the tax payable are due within nine months from the end of the relevant Tax Period. A company whose financial year ended on 31 December 2025 must file and pay by 30 September 2026. A different year-end produces a different date, so do not copy the deadline from another company or from the licence date.

Write the Tax Period end date at the top of the review sheet. Then check that the accounting close, registration record and return period all point to the same year. The existing EmaraTax filing guide helps with the submission sequence, but it cannot correct a period that was set up incorrectly.

Gap two is treating accounting profit as taxable income

The ledger is only the start.

Under Federal Decree-Law No. 47 of 2022, taxable income starts with accounting income and then moves through the adjustments required by the Corporate Tax Law. The FTA’s Corporate Tax General Guide describes this as a calculation, not a copy-and-paste exercise.

Worked example. Mira Design LLC has taxable income of AED 1,800,000 for the illustration below, with no other adjustments, reliefs or credits. The first AED 375,000 is taxed at 0%. The remaining AED 1,425,000 is taxed at 9%, producing AED 128,250 of Corporate Tax. The arithmetic is simple. The hard part is proving that AED 1,800,000 is the right taxable starting point.

Before signing off the figure, tie the trial balance to the return working, separate business and personal items, and keep a list of every adjustment. If the number changed from the draft accounts, record why. A reviewer should be able to follow the route from the general ledger to the return without guessing.

Gap three is a related-party balance without evidence

A group invoice is not proof.

The FTA applies the arm’s length principle to transactions with Related Parties and Connected Persons, including domestic transactions. A payment to an owner, director or group company must match the market value of the service or benefit and be incurred wholly and exclusively for the business. The invoice is one item in the file, not the file itself.

For each material balance, keep the agreement, scope of work, calculation of the charge, evidence that the work happened and payment trail. Note how the price compares with an independent supplier. If the FTA requests transfer pricing support, the FTA guide says the information is generally due within 30 days of the request, unless a later date is directed.

A related-party schedule also catches balances that never reached the accounts team: owner benefits, shared staff, loans, rent paid by another entity and services billed at year-end. Review the schedule before the return, then keep the evidence with the tax file.

Gap four is calling every free-zone sale qualifying

A licence is not a tax rate.

A Free Zone Person still has to register and file. The 0% Corporate Tax rate is for Qualifying Income of a Qualifying Free Zone Person, while income outside that definition is subject to the 9% rate. The FTA lists conditions that include adequate substance in the UAE, qualifying income, transfer pricing compliance and no election to be taxed under the full Corporate Tax regime.

Test the income line by line. Keep separate ledgers for qualifying and other income, retain the contracts and customer evidence supporting the classification, and check the transfer pricing file. The existing QFZP guide is useful for the rules, but your return still needs evidence for your own transactions.

Gap five is finding the audit issue after the accounts close

Audit planning starts earlier.

Ministerial Decision No. 84 of 2025 requires audited financial statements for a Taxable Person that is not a Tax Group and has Revenue exceeding AED 50,000,000 in the relevant Tax Period. It also covers every Qualifying Free Zone Person. Tax Groups prepare audited special purpose financial statements under the decision’s rule.

That check belongs in the health review even if the return itself is filed online. Compare the Revenue figure with the threshold, confirm whether the entity claims QFZP status, and ask whether the accounts can be audited on the timetable. Exiloz provides preparation and filing support. It is not a statutory audit firm, so arrange the statutory audit with an authorised auditor where the rule applies.

The filing pack must survive a seven-year question

Keep the trail.

The FTA says Taxable Persons must retain the records and documents supporting the return for at least seven years after the end of the relevant Tax Period. Its examples include transaction records, asset purchases and disposals, liabilities and shares held at the period end. A folder of invoices alone is not a complete record.

1. Save the signed financial statements and final trial balance.
2. Save the tax adjustment schedule and the calculation behind each material item.
3. Save related-party, free-zone and audit evidence with the return version that used it.
4. Keep the filed return, payment proof and any later correction together.

This is also where a tax audit readiness review earns its place. The question is not only whether the return was submitted. It is whether the company can show how it reached every material line.

The mistake we see most is filing from the bank balance

Cash is not taxable income.

The mistake we see most is treating the bank statement as the business result. Cash can include a loan, an owner’s withdrawal, a customer deposit, a VAT movement or payment for an asset. None of those labels, by themselves, tells you what belongs in taxable income. The bank reconciliation is useful, but it is a control around the books, not a substitute for the books.

Start with the closed ledger. Then reconcile the bank, receivables, payables, fixed assets, loans and owner balances to it. Any unexplained difference is a filing gap until someone can state what it is and where it belongs.

One owner charge can remain unsettled

Some answers depend on facts.

An owner or group-company management charge can be deductible only if the service was actually provided, the amount matches market value and the cost was incurred wholly and exclusively for the business. The FTA guide states the test, but it does not turn a thin invoice into evidence. The treatment of a specific charge remains unsettled until the work, benefit, allocation and price are tested against the documents.

Do not hide that uncertainty in a neat spreadsheet. Mark the item for review, gather the missing proof and decide whether an adjustment is needed. A candid open item is safer than a deduction that nobody can explain six months later.

What to do before 30 September

Give yourself a buffer.

If the company’s Tax Period ended on 31 December 2025, the FTA’s example deadline is 30 September 2026. Use the date that applies to your own Tax Period. Before submission, finish this short review:

1. Lock the accounting period and reconcile the closing ledger.
2. Trace accounting profit to taxable income and document each adjustment.
3. Test related-party charges, free-zone income and the audited-financial-statements position.
4. File and pay only after the evidence pack matches the figures in the return.

If any line still depends on an assumption, get it reviewed now. The cheapest correction is the one made before the return is filed.

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