📅 Countdown · 2027
How many days until Self Assessment Deadline?
UK Self Assessment tax return deadline — 31 January.
Answer: There are 252 days until Self Assessment Deadline on Sunday 31 January 2027.
📋 Live countdown
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Self Assessment Deadline 2027 — Sunday 31 January 2027
36.0
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8.3
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6048
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Falls on
About Self Assessment Deadline
1
When is Self Assessment Deadline this year?
Self Assessment Deadline 2027 falls on Sunday 31 January 2027 — that's Sunday.
31 January is the online Self Assessment deadline for the previous tax year in the UK. Late filing incurs a £100 penalty.
2
Upcoming dates
- 2027: 31 January (Sunday)
- 2028: 31 January (Monday)
- 2029: 31 January (Wednesday)
- 2030: 31 January (Thursday)
- 2031: 31 January (Friday)