How to say that something happens in the future related to a particular date?
Fines are issued in the future ??? as related to the date of first missed payment ???
To specify a particular date the prepostion "on" is usually used
Failure to receive payment will result in fines on or after the 20th of the month.
Your assignments are due on August 30th.
"On" is used to designate a specific time, "by" may be used to signify the time before and including the "on" time, "after" would be used for any time post the "on" time.
Our meeting is on the 10th.
The meeting presentation needs to be finished by the 9th.
After the 10th, it will be too late.
One of my credit card bills contains this verbiage:
Late Payment Warning: If we do not receive your Total Minimum Payment by the date listed above, you may have to pay a late fee of up to $37.00 and your APRs may be increased up to the Penalty APR of 29.99%.
I would use something like that (or exactly that) for my contract, were I drafting one.