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How many days until Self Assessment Tax Return Deadline 2026?
Saturday, January 31, 2026 · US Eastern
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181 days since
25 weeks 6 days
4,348 hours
Self Assessment Tax Return Deadline 2026 countdown — see exactly how long until Self Assessment Tax Return Deadline in 2026, shown live in US Eastern (ET) time.
Self Assessment Tax Return Deadline in other years
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All times shown in US Eastern (America/New_York).