RDRM34550 | Remittance Basis: Exemptions: Business investment relief: Record keeping
From HM Revenue & Customs · Remittance Basis and Domicile Manual
The onus of proof is on the person claiming business investment relief. If there is a claim to the relief, appropriate evidence should have been kept which will:
support the initial claim to the relief, for example
how much was invested
when the investment was brought to the UK
when and in which company the investment was made
if a chargeable event occurred, the actions taken, for example if an investment was not proceeded with, the amount returned overseas,
and show that it continues to be a valid claim throughout the life of the investment, for example that the company being invested in meets, and continues to meet, relevant conditions.
For example, if payments or other benefits are received from the company in which the investment occurred, there should be sufficient proof to show that these occurred on arm’s length terms.