Get your Overlap Relief figure

Before including Overlap Relief in your Self Assessment tax return, you should check to see if you are affected by Basis Period Reform.

You can use Overlap Relief in the 2023 to 2024 tax year if your accounting end date:

• does not align with the tax year (accounting dates between 31 March and 5 April align with the tax year)
• has been changed to align to the tax year, but you did not use any Overlap Relief due
• was changed during the 2023 to 2024 tax year, but does now align with the tax year

If you have stopped trading in the 2023 to 2024 tax year you can still include Overlap Relief in your return for that year.

Section 19 of how to calculate your taxable profits (Self Assessment helpsheet HS222) explains how to include Overlap Relief in your tax return.

How to work out your Overlap Relief figure

Your Overlap Relief figure may already be entered as Overlap Profit Carried Forward on a previous Self Assessment return form if it included :

• trading income on Self Employment (SA103)
• trading income on Partnership (SA104)
• both trading income on Self Employment and Partnership

If you do not know your Overlap Relief figure, and you cannot find it on your previous Self Assessment returns, HMRC may be able to help.

Do not use this service if you are working as a trust, estate, or non-resident company that has trading income, contact HMRC to find out how to get your overlap relief figure.

Before you start

You’ll need to sign in with your Government Gateway user ID and password for Self Assessment (if you do not have a user ID, you can create one when you first try to sign in).

You will need to give:

• your name
• the name or description of your business (or both)
• your business address
• your Unique Taxpayer Reference (UTR)
• details of whether your business is a sole trader or part of a partnership
• the partnership’s UTR if your business is part of a partnership
• the date your self-employed business or being a partner in a partnership began (if not sure, the tax year this began)
• the most recent period of account or basis period used by your business
• the year or years the accounting period changed (if applicable)

You will be asked for contact details and whether you would like to receive a response by letter or email.

Start now

After you have requested your Overlap Relief figure

HMRC will send you a confirmation letter or email with your submission reference.

If you have received a confirmation email, the reply will contain the following details so you can be sure it has come from HMRC:

• a UTR, redacted to show the last 4 characters
• the first initial of your name
• your last name

We will review the information you have given us and contact you within 3 weeks. This may take longer if your case is complex.