The PSLF Application For Forgiveness will be used once you've made 120 qualifying PSLF loan payments. Ideally, you would have at least 9 PSLF Employment Certification Forms for each of the prior years you've been making PSLF qualifying payments and this would act as your 10th form under your current PSLF qualifying employer. Visit https://studentaid.ed.gov/sa/repay-loans/forgiveness-cancellation/public-service for more information.