Key Tax Deadlines - May & June 2026
06 May, 20261 minuteA number of important tax deadlines are coming up in May and June that you may need to be aw...
A number of important tax deadlines are coming up in May and June that you may need to be aware of to avoid incurring any penalties.
Have a look at our ‘dates for your diary’ below to see which dates may apply to you:
Date | What’s Due |
1 May | Corporation Tax for the year to 31/07/2025 (unless quarterly instalments apply) |
19 May | PAYE & NIC deductions and CIS return and tax, for the month to 05/05/2026 (due 22/05 if you pay electronically) |
1 June | Corporation Tax for the year to 31/08/2025 (unless quarterly instalments apply) |
19 June | PAYE & NIC deductions and CIS return and tax, for the month to 05/06/2026 (due 22/06 if you pay electronically) |
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