Key Tax Deadlines - February & March 2026

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A number of important tax deadlines are coming up in February and March that you may need to...

By JS .

A number of important tax deadlines are coming up in February and March 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

01/02

Corporation tax payment for the year to 30/04/2025 (unless quarterly instalments apply)

19/02

PAYE & NIC deductions, and CIS return and tax, for the month to 05/02/2026 (due 22/02/2026 if you pay electronically)

01/03

Corporation Tax payment for the year to 31/05/2025 (unless quarterly instalments apply)

19/03

PAYE & NIC deductions, and CIS return and tax, for the month to 05/03/2026 (due 22/03/2026 if you pay electronically)