Legal tender has a very narrow and technical meaning in the settlement of debts. It means that a debtor cannot successfully be sued for non-payment if he pays into court in legal tender. It does not mean that any ordinary transaction has to take place in legal tender or only within the amount denominated by the legislation. Both parties are free to agree to accept any form of payment whether legal tender or otherwise according to their wishes. In order to comply with the very strict rules governing an actual legal tender it is necessary, for example, actually to offer the exact amount due because no change can be demanded.
The amounts for legal tender are stated below.
BANK OF ENGLAND NOTES:
In England and Wales the £5, £10, £20 and £50 notes are legal tender for payment of any amount. However, they are not legal tender in Scotland and Northern Ireland.
Coins are legal tender throughout the United Kingdom for the following amount:
£5 (Crown) - for any amount
£2 - for any amount
£1 - for any amount
50p - for any amount not exceeding £10
25p (Crown) - for any amount not exceeding £10
20p - for any amount not exceeding £10
10p - for any amount not exceeding £5
5p - for any amount not exceeding £5
2p - for any amount not exceeding 20p
1p - for any amount not exceeding 20p