installment plan; instalment plan
A payment method where the total amount is divided into fixed periodic payments. Used in financial and commercial contexts.
This product can be purchased on an installment plan.
分割払い is a more general term for paying in installments, while 割賦方式 specifically refers to the formal installment plan system.
Compound of 割賦 (allotment, installment) and 方式 (method, system).