📅 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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Sunday
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)
Frequently asked questions
How many days until Self Assessment Deadline?
There are 252 days until Self Assessment Deadline 2027 (on Sunday 31 January 2027).
When is Self Assessment Deadline 2027?
Self Assessment Deadline 2027 is on Sunday 31 January 2027.
How many weeks until Self Assessment Deadline?
There are approximately 36.0 weeks until Self Assessment Deadline 2027.