United Kingdom: keep a copy with your records
A receipt shows that you were paid; it is not an invoice. If you are self-employed, HMRC asks you to keep records of all your sales and income, for at least 5 years after the 31 January submission deadline of the tax year. Keep a copy of every receipt you give.
Sources
- Business records if you're self-employed: what records to keep, GOV.UK (HM Revenue & Customs), checked Nov 6, 2026
- Business records if you're self-employed: how long to keep your records, GOV.UK (HM Revenue & Customs), checked Nov 6, 2026