Cash loan to godson in Canada and repayment

My mother (a pensioner) wishes to loan her godson money from her savings for a mortgage deposit in Canada. When the money is returned to her account as a lump sum in a month's time, will she need to pay tax on it? The amount is over GBP 58,000. Thank you!

Hi marcus1234 Goodwin,
As long as it is just the capital that is returned then no tax is due.
If this amount includes interest, that will need to be declared as taxable income:
Peer to peer lending
Thank you.