Business records if you're self-employed

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Overview

You must keep records of your business income and expenses for your Self Assessment tax return if you’re a:

  • sole trader
  • partner in a business partnership

This guide is also available in Welsh (Cymraeg).

You’ll also need to keep records of your personal income.

If you’re the nominated partner in a partnership, you must also keep records for the partnership.

There are different rules on keeping records for limited companies.

Recording your income and expenses

If you prepare accounts for your business, you will need to choose the dates you keep records to and from – this would usually be the same dates each year.

It may be easier to complete your tax return if the dates match the tax year (6 April to 5 April). This is because HM Revenue and Customs (HMRC) works out tax based on the tax year. If your accounts do not match this, you will need to allocate profits to 2 different accounting periods.

If you do not prepare accounts, you will need to record your income and expenses for each tax year (6 April to 5 April).

Accounting methods

You’ll need to choose an accounting method.

From the 2024 to 2025 tax year, cash basis is the default method of accounting. You must opt out if you want to use traditional accounting or cannot use cash basis accounting.

Cash basis accounting

Most businesses can use cash basis reporting.

With this method, you only record income or expenses when you receive money or pay a bill. This means you will not need to pay Income Tax on money you have not yet received.

Example

You record your income and expenses in line with the tax year (6 April to 5 April). You invoiced someone on 15 March 2024 but did not receive the money until 30 April 2024. Record this income as received on 30 April 2024 in the 2024 to 2025 tax year.

Traditional accounting

Many businesses use traditional accounting where you record income and expenses by the date you invoiced or were billed.

Example

You prepare accounts to 31 March each year. You invoiced a customer on 28 March 2024. You record that invoice for the 2023 to 2024 tax year - even if you did not receive the money until the next tax year.

  1. Step 1 Check if being a sole trader is right for you

  2. Step 2 Choose your business name

  3. Step 3 Check what records you need to keep

    When you start trading you must keep records. This will help you work out your profit or loss for your tax return.

    1. You are currently viewing: Find out what business records you need to keep
  4. Step 4 Register as a sole trader

  5. Step 5 Check what taxes may apply to you

  6. Step 6 Plan for your tax bill

    You may need to pay Income Tax on your profits and may need to pay National Insurance contributions.

    1. Get an estimate of how much you will need to pay
    1. Find out more about Income Tax rates
    1. Find out more about National Insurance rates
  7. Step 7 Get help and support