Exchange rate to use for shares sold

Hello, I'm working out the exchange rate to use for USD shares sold. If the tax year runs from 6 April 2022 to 5 April 2023, and the shares were sold in November 2022, which exchange rate should I use for the conversion, for the purpose of the self assessment? Many thanks.

Hi Max McCarthy,
Under the terms of Self Assessment, we do not provide an official exchange rate and the onus is on the individual to use a just and reasonable exchange rate for each acquisition and disposal.
For your convenience, there are exchange rates here:
Exchange rates from HMRC in CSV and XML format
For older rates here:
Exchange rates.
You are free to use any of the supplied rates or one of your own choosing, for example the London Stock Exchange rates.
Thank you.