Restrict Content Pro – Hard-set Expiration Dates GPL Overview:

Hard-set Expiration Dates allows for a specific expiration date to be assigned to membership levels. All members in that membership level will expire on that specific date, regardless of when their account was registered.

For example, if an expiration date of June 1 is assigned to a membership level, all accounts registered for that membership level will expire on June 1, regardless of when the account was created.