Scottish people were the most generous, with 12 per cent willing to lend up to £5,000, compared to only eight per cent in the rest of the UK.
Head of AA personal loans Mark Huggins said: "Brits are clearly extremely generous when it comes to lending money.
"However, our research indicated that unless you can afford not to expect the money back immediately, don't feel pressured into shelling out your hard-earned cash."
Mr Huggins added that there were still loans with low borrowing rates available, meaning friction between loved ones could be avoided.
Meanwhile, the Citizens Advice Bureau has reported that it has seen calls for financial help rise by a third compared with last year, as householders struggle to cope with rising costs.
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