isplaćivati

1. to pay out; to pay off
   Firma redovno isplaćuje plate petnaestog u mesecu. — The company regularly pays salaries on the fifteenth of the month.
   Osiguranje nam isplaćuje odštetu u ratama. — The insurance company is paying us the compensation in instalments.
2. (isplaćivati se) to pay off; to be worth it
   Ne isplaćuje se popravljati tako star auto. — It's not worth repairing such an old car.
   Trud se uvek isplaćuje na kraju. — Hard work always pays off in the end.

The perfective is isplatiti; in the sense 'be worth it' it is often impersonal: ne isplaćuje se + infinitive.