If you're a UK taxpayer you should keep a record of the tax you pay each year and other records relating to your income. You'll need these if HM Revenue & Customs (HMRC) asks you to complete a tax return or if you need to provide information on one you've already completed.
Income from employment
You should keep documents containing details about your pay and tax that your employer provides, including:
You should also keep:
Expense records
When you're employed you may be able to claim for expenses to reduce the tax you'll have to pay. You'll need to keep records so you can include the expenses in your Self Assessment tax return.
Benefits records
You should keep any documents relating to:
Pension records
You should keep:
Interest, dividends or other income from UK savings, investments or trusts
You should keep all:
You should also keep:
Income from property
If you get income from letting out a property, you'll need to keep details of the rents you've received and the expenses you've paid.
Foreign income or gains
You'll need to keep any dividend vouchers, tax certificates and personal financial records.
Income from employee share schemes or share-related benefits
You should keep information on any share options awarded or share participation arrangements.
Capital gains or capital losses
You'll need to keep contracts and other documentation about assets you've bought, sold, exchanged, given away or acquired. You should also keep any bills, invoices or other evidence of payment such as bank statements and cheque stubs for the costs of buying, improving or selling assets - as well as copies of any valuations used in your calculations.
Business income or income from self-employment
If you're self-employed or in business there are certain records you legally have to keep. There are also good business reasons for keeping good records.
If you're not running a business you'll normally have to keep your records for at least 22 months from the end of the tax year to which they relate.
It's advisable to keep documents relating to buying or improving assets until at least 22 months after the end of the tax year in which you disposed of the asset. These documents will help you calculate any capital gains or losses and answer any queries HM Revenue & Customs (HMRC) has.
For example if you dispose of an asset in February 2008 you must keep any records relating to its purchase, improvement and disposal until after 31 January 2010.
If your records are lost or destroyed and you can't replace them you must tell HMRC what has happened and do your best to recreate them.
Once you've gathered replacement information you use this to complete your tax return. You must tell HMRC whether any provisional figures are:
If you make adjustments at a later date and you've underpaid tax there may be interest and penalties to pay.