Test the loan before planning prepayment
| Situation | What to do next |
|---|---|
| Extra payment planned | Get principal-application instructions. |
| Early payoff likely | Compare dated payoff examples. |
| Same APR, different method | Review total cost under your payment timing. |
Three differences that shape the answer
Interest method can change how early payoff savings develop.
Payment amount alone does not reveal how interest is allocated.
The contract and payoff quote control the actual result.
Ask how interest accrues
Simple-interest loans commonly calculate interest on outstanding principal over time; other contracts may calculate finance charge in advance under their terms.
Ask how interest is calculated and when it is earned. Similar payments or APRs do not prove that extra principal and early payoff will produce the same savings path. Request a sample allocation schedule before choosing the loan. Compare dated payoff quotes, not estimates from the original schedule.
Trace an extra payment
Confirm whether it reduces principal immediately, advances the due date or is held for future installments.
Send a small extra payment only after learning the servicer's instructions. Verify whether it reduces principal, advances the due date or is held for a future installment.
Request early-payoff examples
Compare payoff amounts at several months and ask how unearned charges or rebates are determined.
Request payoff examples at several months and ask how unearned charges are handled. The dated quote and contract are more reliable than assumptions based on the product name.
Simple Interest vs. Precomputed Interest Loans comparison checklist
Which choice fits which situation
Interest method can change how early payoff savings develop.
Extra payment planned: Get principal-application instructions.
Never assume that sending more money automatically reduces principal; verify the servicer's application method.
Primary sources
- CFPB: Consumer loansOfficial reference ↗
- Federal Reserve: Consumer creditOfficial reference ↗
Answers to check before you act
Does precomputed interest mean no early-payoff savings?
Not necessarily, but the savings and rebate method can differ. Read the contract and obtain a payoff quote.
Can an extra payment just advance my due date?
It can under servicing practices. Give instructions and verify how the payment was posted.