Self AssessmentTax DeadlineAffordable Tax HelpJanuary 31stUK Tax

Self Assessment Deadline January 2026: Why Properly.Tax Is the Cheapest Way to Get Tax Help

January 31st is coming. Accountants charge £300+. Generic AI gets UK tax wrong. There's now a better option at £14.99/month - and it finds deductions they both miss.

16 December 2025 • 9 min read

The clock is ticking. **January 31st, 2026.** That's when 12.1 million Self Assessment tax returns need to be filed. Miss it, and you're looking at an automatic £100 penalty. Miss it by three months? That's another £10 per day. Miss it by six months? 5% of the tax owed. **The penalties add up faster than most people realize.** ...

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