The Rate Buy Down decision file
What would have to be true for rate buy down to improve the purchase?
Rate buy down guidance for Prosper buyers comparing seller credits, builder promotions, temporary buydowns, and permanent discount points. The useful question is not whether the service sounds helpful. It is which decision, number, document, or deadline becomes clearer because of it.
A rebate, builder promotion, seller contribution, or rate offer is useful only after the buyer sees the net effect on cash, payment, loan cost, price, and future flexibility. The headline number is the beginning of the comparison.
Pressure-test the decision before saying yes
- Payment schedule: What is the payment during every temporary period and after the full note rate applies?
- Break-even: How long must you keep the loan before permanent points outperform other uses of the same funds?
- Alternative use: Would the same contribution do more as closing costs, a price change, reserves, or repairs?
Would it be unreasonable to ask for the evidence behind payment schedule before accepting the first answer? A buyer should be able to explain the tradeoff in plain language and see where it appears in the contract, report, worksheet, or property record.