Important Tax Dates for UK Small Businesses in 2025
Managing taxes is a critical part of running a successful small business. For entrepreneurs in the UK, staying on top of key tax deadlines can save time, reduce stress, and help avoid penalties. Here is a comprehensive guide to the important tax dates for 2025 to keep your finances in order.
Managing taxes is a critical part of running a successful small business. For entrepreneurs in the UK, staying on top of key tax deadlines can save time, reduce stress, and help avoid penalties. Here is a comprehensive guide to the important tax dates for 2025 to keep your finances in order.
January 2025
- 31 January 2025: This is the final deadline for submitting your online Self Assessment tax return for the 2023/24 tax year. It’s also the due date for paying any tax owed for that year, along with the first payment on account for the 2024/25 tax year.
April 2025
- 5 April 2025: The 2024/25 tax year ends. Ensure your financial records are up to date, and consider any last-minute tax planning.
- 6 April 2025: The new tax year (2025/26) begins. Take note of updated tax rates and allowances.
- 19 April 2025: Submit your final Full Payment Submission (FPS) under Real Time Information (RTI) for the 2024/25 tax year. This ensures all payroll information is correctly reported to HMRC.
May 2025
- 31 May 2025: Employers must provide employees with their P60, summarizing total pay and deductions for the 2024/25 tax year.
July 2025
- 6 July 2025: Submit your P11D and P11D(b) forms to HMRC, detailing expenses and benefits provided to employees during the 2024/25 tax year. Share copies of these documents with your employees.
- 19 July 2025: Pay Class 1A National Insurance contributions on employee benefits provided in the 2024/25 tax year.
- 31 July 2025: The second payment on account for the 2024/25 tax year is due. This payment contributes toward your overall tax liability.
October 2025
- 5 October 2025: If you are newly self-employed or have a new source of income, register for Self Assessment for the 2024/25 tax year by this date.
- 31 October 2025: This is the deadline for submitting paper Self Assessment tax returns for the 2024/25 tax year. Missed it? Don’t worry—you can still file online by 31 January 2026.
December 2025
- 30 December 2025: If you owe less than £3,000 in tax and want HMRC to collect it through your PAYE tax code, file your online Self Assessment return by this date.
Ongoing Deadlines
- VAT Returns: If your business is VAT-registered, ensure you submit VAT returns and payments on time. The deadlines vary depending on your VAT accounting period, but typically, VAT returns are due one calendar month and seven days after the end of the accounting period.
- Corporation Tax: Corporation Tax payment is due nine months and one day after the end of your company’s accounting period. For example, if your accounting period ends on 31 March 2025, the tax payment is due by 1 January 2026.
Staying organized and proactive about tax deadlines can prevent costly mistakes and ensure your business remains compliant. Invest time in keeping your records up to date and consider working with a tax professional to maximize tax relief opportunities.
By staying informed and prepared, you can focus more on growing your business and less on tax-related worries. Here’s to a successful 2025!
At PJCO, our team of specialist ACCA accountants is here to support your small business. Book a free discovery call today using the link below!
Please get in touch on 01273 441187 or book a discovery call with one of our expert accountants.
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