April 2026 brings a full slate of GCC tax deadlines across the UAE, Saudi Arabia (KSA), Oman, Bahrain, Kuwait and Qatar. The headline date is 30 April 2026, when UAE corporate tax returns — with the Transfer Pricing Disclosure Form — fall due for financial years ended 31 July 2025.
Key takeaways
- UAE: 30 April 2026 is the corporate tax return and payment deadline, including the Transfer Pricing Disclosure Form, for financial years ending 31 July 2025.
- UAE: the Q1 2026 (January to March) VAT return and payment, plus the March monthly VAT return for large businesses, are due 28 April 2026; the March excise return is due 15 April.
- KSA: 30 April 2026 brings the annual Zakat/CIT return with TP disclosure forms (year ending December 2025), the annual withholding tax (WHT) return for 2025, and Q1 VAT and excise returns; monthly WHT for March is due 10 April.
- Oman and Qatar: annual corporate income tax returns for the December 2025 financial year are due 30 April 2026, alongside Q1 2026 VAT or excise filings.
- Bahrain: Q1 2026 VAT and excise returns, and the March monthly VAT return, are due 30 April 2026.
- Kuwait: listed companies must file the annual Zakat declaration by 15 April 2026 — 105 days after a 31 December year-end.
April 2026 tax deadlines at a glance
| Due date | Jurisdiction | Filing or payment |
|---|---|---|
| 10 April 2026 | KSA | Monthly WHT return and payment (March 2026) |
| 14 April 2026 | Oman | WHT remittance (March 2026) |
| 15 April 2026 | UAE | Excise tax return and payment (March 2026) |
| 15 April 2026 | Kuwait | Annual Zakat declaration — listed companies (105 days after 31 December year-end) |
| 16 April 2026 | Qatar | Monthly WHT remittance (March 2026) |
| 28 April 2026 | UAE | Q1 2026 VAT return and payment (Jan-Mar); March monthly VAT return (large businesses) |
| 30 April 2026 | UAE | Corporate tax return and payment, incl. Transfer Pricing Disclosure Form (FY ending 31 July 2025) |
| 30 April 2026 | KSA | Annual Zakat/CIT return incl. TP disclosure forms (FY Dec 2025); annual WHT return (2025); Q1 VAT and excise returns |
| 30 April 2026 | Oman | Annual CIT return and payment (FY Dec 2025); Q1 2026 VAT and excise returns |
| 30 April 2026 | Bahrain | Q1 2026 VAT return; March monthly VAT return; Q1 2026 excise return |
| 30 April 2026 | Qatar | Annual CIT return and payment (FY Dec 2025); Q1 2026 excise return |
The UAE's 30 April corporate tax deadline
UAE corporate tax returns fall due nine months after the financial year-end, so a year ending 31 July 2025 must be filed and paid by 30 April 2026. The same date carries the Transfer Pricing Disclosure Form, which accompanies the return for taxpayers that cross the related-party and connected-person thresholds. Because that form summarises related-party dealings, the underlying benchmarking and transfer pricing analysis should be settled well before the deadline, not assembled in the final week.
Earlier in the month, indirect taxes fall due: the March excise return on 15 April, and the Q1 2026 VAT return on 28 April, which also captures the March monthly return for businesses on a monthly VAT cycle.
In the UAE, the corporate tax return and the Transfer Pricing Disclosure Form share the 30 April 2026 deadline for a year ended 31 July 2025 — so related-party analysis and benchmarking need to be finished ahead of month-end, not started then.
Deadlines across KSA, Oman, Bahrain, Kuwait and Qatar
Saudi Arabia has the busiest month-end. Its monthly WHT return for March is due 10 April, and by 30 April taxpayers must file the annual Zakat or corporate income tax return — with TP disclosure forms — for the December 2025 financial year, the annual WHT return for 2025, and the Q1 2026 VAT and excise returns. Oman and Qatar both file annual corporate income tax returns for the December 2025 year by 30 April, with Oman also completing Q1 VAT and excise returns and Qatar its Q1 excise return; Oman's March WHT remittance is due 14 April and Qatar's on 16 April. Bahrain files its Q1 2026 VAT return, the March monthly VAT return and the Q1 excise return by 30 April. In Kuwait, listed companies must submit the annual Zakat declaration by 15 April, which is 105 days after a 31 December year-end.
Why these deadlines are not optional
Every date here is a legal obligation, and a missed filing typically means penalties, interest and avoidable reputational damage. In practice, the filings that slip are rarely the big annual returns; they are the monthly VAT, excise and WHT cycles that quietly fall behind and then have to be rebuilt under pressure at quarter-end. The practical defence is a single compliance calendar per entity: reconcile those monthly cycles as they arise so nothing has to be reconstructed later, and finalise the annual corporate tax and Zakat returns — with their TP disclosures — early enough to review before submission. Where a group operates in several GCC states, aligning these cycles centrally avoids the same team facing five deadlines at once.
Frequently asked questions
When is the UAE corporate tax return due in April 2026?
The UAE corporate tax return and payment for a financial year ending 31 July 2025 are due on 30 April 2026, nine months after the year-end. The Transfer Pricing Disclosure Form is filed together with the return where the taxpayer meets the related-party and connected-person thresholds.
What is the Q1 2026 VAT deadline in the UAE?
Quarterly VAT registrants must file and pay the January to March 2026 VAT return by 28 April 2026. Businesses on a monthly VAT cycle file the March 2026 return by the same date. Excise tax for March 2026 is due earlier, on 15 April 2026.
What are the main KSA tax deadlines in April 2026?
Saudi Arabia's monthly withholding tax return for March is due 10 April 2026. By 30 April 2026, taxpayers file the annual Zakat or CIT return with TP disclosure forms for the December 2025 financial year, the annual WHT return for 2025, and the Q1 2026 VAT and excise returns.
When must Kuwaiti listed companies file their Zakat declaration?
Kuwaiti listed companies must file the annual Zakat declaration by 15 April 2026, which is 105 days after a 31 December financial year-end. Meeting this date avoids penalties and keeps the company in good standing for the year ahead.
How SBC Tax Consulting can help
SBC helps groups across the GCC track and meet every filing date — corporate tax and Zakat returns, VAT and excise, and withholding tax — with the transfer pricing analysis and disclosure forms prepared in good time rather than at the deadline. We build a single compliance calendar per entity and manage submissions end to end. Explore our corporate tax, VAT advisory and transfer pricing services, or contact us to stay ahead of your deadlines.
This publication is for general information only and does not constitute professional advice. Please consult your SBC advisor before acting on any matter covered here.