Past deadline
First Payment on Account
First instalment of estimated tax for 2025/26 tax year
Deadline
Saturday, 31 January 2026
Who This Applies To
- Those whose Self Assessment tax bill was over £1,000 and less than 80% was deducted at source
What to File
Payment only - 50% of previous year's tax bill
How to File
Online banking, Direct Debit, HMRC app
Payment Due
31 January 2026
Penalties for Missing This Deadline
Interest on late payment
Tax Year: 2025/26
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