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UK Tax Deadlines 2026
tax-deadlines-ukGlobal
Important civic deadlines and dates. Never miss a tax-deadlines-uk deadline.
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Upcoming Deadlines (3)
Jul
31
2nd payment on account (2025-26)
Fri, Jul 31, 2026
Oct
31
Paper self-assessment deadline (2025-26)
Sat, Oct 31, 2026
Jan
31
Online self-assessment deadline (2025-26)
Sun, Jan 31, 2027
Last updated: Sat, Apr 18, 2026