Q1 2025 Bookkeeping Deadlines: Essential Information

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Dates for your financial diary for early 2025.

The start of a new year is a busy time in the financial calendar, with much to remember and even more to comply with.

So, keeping track of everything you have to do can be hard.

But that’s what we’re here for.

In this blog post, the experts at Rosemary Bookkeeping have compiled a list of dates and guidance on the essential bookkeeping dates and deadlines for Q1 2025.

January 2025

January is packed with essential deadlines, including the all-important Self-Assessment Tax return for the tax year ending 5th April 2023.

There are also monthly deadlines for sending off your CIS, NICs and PAYE payments to HMRC.

  • 1st January 2025: Corporation Tax payment due date for the period ended 31st March 2024
  • 7th January 2025: D VAT Returns and payments deadline for the Accounting Quarter period ending 30th November 2024.
  • 14th January 2025: Due date for Income Tax for CT61 period to 31st December 2024.
  • 19th January 2025: Monthly deadline for CIS, NICs and PAYE to HMRC by post.
  • 22nd January 2025: Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC.
  • 31st January 2025: Self-Assessment Tax Returns filing deadline for the tax year that ended 5th April 2023 and for 2023/2024 Capital Gains Tax. This is also the date by which your balancing payment of tax for 2022-2023 is due. The first Payment on Account for Income Tax for 2022/2023 and the due date to file Corporation Tax for companies with 31st January 2024 year-end are also on this day.

February 2025

February includes due dates for essential payments like Corporation Tax, VAT Returns, and P46.

  • 1st February 2025: Corporation Tax due date for the period that ended 30th April 2024.
  • 2nd February 2025: P46 (Car) submission deadline for submitting for the quarter ending 5th January 2024
  • 7th February 2025: VAT Returns and payments deadline for the Accounting Quarter period ending 31st December 2024.
  • 19th February 2025: Monthly postal payment deadline of CIS, NICs and PAYE to HMRC.
  • 22nd February 2025: Monthly electronic remittance deadline of CIS, NICs and PAYE to HMRC.
  • 28th February 2025: The Corporation Tax filing due date for companies with a 28th February 2024 year-end.

March 2025

March brings further regular monthly deadlines and new AFR (Advisory Fuel Rates).

  • 1st March 2025: New Advisory Fuel Rates for company car users and the due date for payment of Corporation Tax for the period that ended 31st May 2024.
  • 7th  March 2025 VAT Return deadline and payments of the Accounting Quarter period ending 31st January 2025.
  • 14th March 2025: Corporation Tax quarterly instalment due date for large companies with year-end 31st March 2025 and 31st December 2025.
  • 19th March 2025: Monthly deadline for postal payments of CIS, NICs and PAYE to HMRC.
  • 22nd March 2025: Monthly deadline for electronic remittance of CIS, NICs and PAYE to HMRC
  • 31st March 2025: Corporation Tax Returns filed by companies with 31st March 2024 as year-end.

Need help with your bookkeeping?

With much more to keep track of throughout the year, including the end of the tax year in April, now is the time to get prepared for 2025.

If this seems like a lot of work to remember, you can leave your bookkeeping to the professionals by letting us handle your books.

Entrusting your bookkeeping to Rosemary means:

  • We keep track of your deadlines for you
  • We know when your Tax return needs to be filed by
  • We can keep track of your CIS payments

To learn more about our services and how Rosemary Bookkeeping can help you, call 0345 862 0072 or find your nearest Rosemary Bookkeeper today.