1st
- Due date for Corporation Tax due for the year ended 31 March 2023
6th
- Employee National Insurance reductions announced at Autumn Statement to take effect
19th
- 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
22nd
- Deadline for employers operating PAYE to pay HMRC. For those paying by post, the deadline is 19 January.
31st
- Self-Assessment Tax Returns submission and payment deadline