
July/ August
July
1st - Corporation tax due for accounting periods ending 30th September 2025 not payable by instalments
5th - Deadline to agree PAYE settlement agreement for 25/26
6th - Deadline to submit P11d / P11d(b) for 25/26
7th - Deadline for VAT returns and payments/ for month or quarter ending 31st May 2026
19th - CIS returns due for month ended 5th July 2026
- PAYE, NICS, student loan deductions and CIS deductions due for month ending 5th July paid non electronically
22nd - PAYE, NICS, student loan deductions and CIS deductions due for month ending 5th July paid electronically
- Payment of 24/25 Class 1a NICS for employee benefits
31st - Corporation tax return due for accounting period ending 31st July 2025
- Second payment on account for 2025/26 self assessment due
August
1st - Corporation tax due for accounting periods ending 31st October 2025 not payable by instalments
7th - Deadline for VAT returns and payments for month or quarter ending 30th June 2026
- First Making Tax Digital (MTD) quarterly update due
19th - CIS returns due for month ended 5th August 2026
- PAYE, NICS, student loan deductions and CIS deductions due for month ending 5th August paid non electronically
22nd - PAYE, NICS, student loan deductions and CIS deductions due for month ending 5th August paid electronically
31st - Corporation tax return due for accounting period ending 31st August 2025
