16/07/2026
UK: Self-Assessment Reminder – 31 July Payment Deadline
Your second payment on account for the 2025-26 tax year is due by 31st July 2026.
Who needs to pay?
You usually need to make these payment unless:
• You owed less than £1,000 in last tax year, or
• You already paid more than 80% of your tax through PAYE or other deductions.
Check your Self-Assessment account or statement to see if you need to make a payment.
If you are required to make payments on account, don’t miss the deadline to avoid interest and penalties.