Two phrases that come to mind are "to pay a price" and "to pay a stiff price." Both expressions mean that there is trouble ahead if certain measures aren't taken or sacrifices made now. They may also mean that one will face severe consequences for a present action or attitude. Money is not necessarily involved, but it may be.
Jim will pay a price someday for his failure to maintain his brakes properly.
You will pay a stiff price for your arrogance.