A more thorough explanation:

Noninstallment credit is a type of consumer credit that is arranged to be repaid in a single payment. This means that the borrower is expected to pay back the entire amount borrowed in one lump sum, rather than in multiple payments over time.

Examples of noninstallment credit include bills from doctors or plumbers, which are typically due in full upon receipt. Unlike installment credit, which is repaid in regular intervals, noninstallment credit does not involve finance charges or interest.

For instance, if a person hires a plumber to fix a leaky faucet and the plumber charges $200 for the service, the payment is due in full when the work is completed. This is an example of noninstallment credit because the borrower is expected to pay the entire amount owed at once.

Noninstallment credit can be useful for borrowers who need to make a one-time purchase or pay for a service but do not want to take on a long-term debt obligation. However, it is important to carefully consider the terms of the credit agreement and ensure that the borrower will be able to repay the full amount owed on time.