For the PSLF program, a qualifying payment is a timely payment under an income-driven repayment plan.
Under TEPSLF, a qualifying payment is broader – at least, it was before the October 2021 waiver, and will probably be after the waiver’s end in October 2022.
It includes, at a minimum, all payments that you made:
after October 1, 2007 (this was when the PSLF program started)
for the full payment amount due as shown on your bill (this includes payments under the Graduated Repayment Plan, Extended Repayment Plan, Consolidation Standard Repayment Plan, and Consolidation Graduated Repayment Plan.)
no later than 15 days after the due date
while working full-time for a qualifying employer.
Basically, under TEPSLF any payments plan is a qualifying repayment plan so long as you were making the payments on time, for the amount due, and were repaying a Direct Loan.
Click here to learn Are Consolidation Loans Eligible for PSLF?