August Key Tax Dates 2025

1^st

• Corporation Tax payments are due for companies with a year-end of 31st October.

19^th

• For employers operating PAYE, this is the deadline to send an Employer Payment Summary (EPS) to claim any reduction on what you’ll owe HMRC.
• It is also the deadline for employers operating PAYE to pay HMRC by post, for July.

22^nd

• Deadline for employers operating PAYE to pay HMRC electronically, for July.

31^st

• Corporation Tax Returns (CT600 form) are due for companies with a year-end of 31st August.

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