minimum amount of money; minimum sum
Refers to the lowest monetary amount required, allowed, or set in a context such as a price, fee, bid, or fine.
The minimum bid for this auction is 1,000 yen.
Bids below the minimum amount will be invalid.
最高額 is the antonym, meaning 'maximum amount of money'.
Compound of 最低 (minimum, lowest) + 額 (amount, sum of money).