Self Assessment payment dates (UK)
Use these dates to plan your cashflow and monthly set-aside.
Typical deadlines
- 31 January: balancing payment + first payment on account
- 31 July: second payment on account
Deadlines can vary depending on your filing history and HMRC position. Always verify your exact amount due.
Planning checklist
- Estimate total annual tax and NI early
- Set aside monthly using the calculator output
- Review profit changes quarterly
- Adjust set-aside if income rises
Calendar reminders (.ics)
Download reminders for 31 January and 31 July deadlines for the next 3 years.