Tax Calendar 2025/2026

June 2025
01- Corporation Tax payments are due for companies with a year-end of 30th September.
19 - 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 May.
22- Deadline for employers operating PAYE to pay HMRC electronically, for May.
30- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 30th June.
01- Corporation Tax payments are due for companies with a year-end of 30th September.
July 2025
01- Corporation Tax payments are due for companies with a year-end of 30th September.
06- Deadline for submitting P11D and P11D(b) forms for the tax year 2024-25.
19- 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 June.
22- Deadline for employers operating PAYE to pay HMRC electronically, for June.
31- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 31st July.
August 2025
September 2025
October 2025
November 2025
December 2025