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Tax Calendar 2026/2027

As a firm of Chartered Certified Accountants based in Broughty Ferry, Dundee we serve clients across Scotland, the UK, and internationally providing a broad range of services to small, medium and large sized businesses.

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Tax Calendar 2026/2027

January 2026
01- Corporation Tax payments are due for companies with a year-end of 31st March
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 December.
22- Deadline for employers operating PAYE to pay HMRC electronically, for December.
31- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 31st January.
- It is also the deadline to submit your online self-assessment tax return (if you are required to do one) for the tax year ended 5th April 2025, and to pay HMRC any tax owed.
March 2026
01 - Corporation Tax payments are due for companies with a year-end of 30th April
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 January.
22 - Deadline for employers operating PAYE to pay HMRC electronically, for January.
28- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 28th February.
01- Corporation Tax payments are due for companies with a year-end of 30th May
March 2026
01- Corporation Tax payments are due for companies with a year-end of 30th May
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 February.
22- Deadline for employers operating PAYE to pay HMRC electronically, for February.
31- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 31st March.
April 2026
01- Corporation Tax payments are due for companies with a year-end of 30th June.
05- The end of the current tax year (2025/26). Use up any remaining tax allowances or reliefs by this date.
06- The new tax year (2026/27) begins. Most changes to tax rules and other measures mentioned in the latest Budget will take effect from this date.
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, as well as the Final Payment Summary (FPS) for the previous tax year.
- It is also the deadline for employers operating PAYE to pay HMRC by post, for March.
22- Deadline for employers operating PAYE to pay HMRC electronically, for March.
30- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 30th April.
- It is also the deadline for submitting the Annual Tax on Enveloped Dwellings (ATED) return and making the associated payment for the period covering 1 April 2025 to 31 March 2026.
01- Corporation Tax payments are due for companies with a year-end of 31st July.
May 2026
01- Corporation Tax payments are due for companies with a year-end of 31st July.
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, as well as the Final Payment Summary (FPS) for the previous tax year.
- It is also the deadline for employers operating PAYE to pay HMRC by post, for April.
22- Deadline for employers operating PAYE to pay HMRC electronically, for April.
31- Corporation Tax Returns (CT600 form) are due for companies with a year-end of 31st May.
- It is also the deadline for providing P60s to employees for the 2025-26 tax year.

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