Key Tax Deadlines - March & April 2025
28 Feb, 20251 minuteA number of important tax deadlines are coming up in March and April that you may need to be...

A number of important tax deadlines are coming up in March and April that you may need to be aware of to avoid incurring any penalties.
Take a look at our ‘dates for your diary’ below to see which dates may apply to you:
Date | What's Due |
01/03 | Corporation tax payment for the year to 30/05/2024 (unless quarterly instalments apply) |
19/03 | PAYE & NIC deductions, and CIS return and tax, for the month to 05/03/2025 (due 22/03/2025 if you pay electronically) |
26/03 | Spring Forecast: the Chancellor of the Exchequer, Rachel Reeves, will present her Spring forecast |
01/04 | Corporation tax payment for the year to 30/06/2024 (unless quarterly instalments apply) |
05/04 | End of the 2024/25 tax year – many tax planning actions need to have been taken by this date |
06/04 | Start of the 2025/26 tax year |
19/04 | PAYE & NIC deductions, and CIS return and tax, for the month to 05/04/2025 (due 22/04/2025 if you pay electronically) |
30/04 | Annual Tax on Enveloped Dwellings (ATED) returns and payment for the chargeable period starting on 1 April 2025 |