Tax Diary

Tax & Finance Diary: September to November 2026

1 September – Corporation tax, 30 Nov 2025 year ends · 7 September – VAT returns for periods to 31 July · 22 September – PAYE/CIS cleared funds, month 5 · 7 October – VAT returns for periods to 31 August

1 September 2026 By SBTF Publishing Ltd 🔒 Subscribers
September 2026
1 SeptemberCorporation tax due for companies with a 30 November 2025 year end.
5 SeptemberEnd of PAYE month 5.
7 SeptemberDue date for VAT returns for periods ending 31 July 2026 and payment of associated VAT.
18 September

Payment of PAYE/NIC and CIS deductions for month 5 (to 5 September 2026) to reach HMRC where payment is not made electronically.

Note: 19 September 2026 falls on a Saturday.

22 SeptemberCleared funds must reach HMRC in respect of month 5 (to 5 September 2026) where payment of PAYE/NIC and CIS deductions is made electronically.

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Small Business Tax & Finance is intended to be a source of news and ideas for accountants and other taxation practitioners and financial advisors. No publication can be comprehensive enough to foresee all the considerations which may be relevant in individual cases and circumstances. Moreover, whilst great care is taken to ensure the highest standards of accuracy, the authors, the editor and the publisher cannot and do not accept any liability for any loss or disadvantage suffered by any person acting or refraining from acting in reliance on anything published in Small Business Tax & Finance.

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