The phrase "a minimum fee" is correct and usable in written English.
It can be used when referring to the lowest amount of money that must be paid for a service or product.
Example: "To register for the event, participants are required to pay a minimum fee of $50."
Alternatives: "a base charge" or "a lowest fee".
They could decide on a minimum fee and stick to it.
Josh met Rosie online two weeks after signing up (Shaadi charges a minimum fee of £17 per month).
John Charcol, for example, has a minimum fee of £495 and a maximum of 1.5% of the loan value.
Colleges are now required to pay 2 cents for every 100 Internet listeners they have per song, with a minimum fee of $500 annually.
It uses a similar auction structure to the long-term repo auctions but allows banks to pledge discount-window-style collateral for a minimum fee of 1.25 percentage points over the bank's base rate.
According to the memorandum cited in the tribunal, R.P. Capital was to be paid a minimum fee of $2 million and 5 percent of the eventual sale amount, which would have given it at least $12.85 million.
Reuters New Media's revenues are generated through a combination of a guaranteed minimum fee a month somewhere in the four-figure range and half of a site's advertising revenue or inventory.
Under the old basic rate schedule, consumers paid a flat $3 a month minimum fee on top of per-minute charges that were determined based on when the call was placed.
Gold parkers pay $24 a day with an annual minimum fee of $288.
Calculating this is fairly difficult for all involved, because there are multiple fees, a monthly minimum fee, along with others that make an easy calculation impossible.
After personalizing their card, users pay a low minimum fee per recipient with the option to specify a larger amount for donation to UNICEF.
