Better credit scores mean you start from a lower base rate, which changes the economics of buying points. The rate reduction from points is roughly the same, but the savings in dollars may be smaller when your starting rate is already low. Shopping multiple lenders is essential to find the best pricing for your credit tier.
How Credit Affects Rates
Credit scores directly impact mortgage rates. A 760+ score might qualify for the best rate (say 6.75%), while a 680 score might see 7.5% for the same loan. The difference of 0.75% equals roughly three discount points worth of rate reduction. Buyers with lower scores have more room for improvement through points but also pay more per month from the start.
Point Economics by Credit Tier
For a buyer at 760+ with a 6.75% rate: one point ($3,000 on $300K) reduces to 6.5%, saving about $46/month. Break-even: 65 months. For a buyer at 680 with a 7.5% rate: one point reduces to 7.25%, saving about $50/month. Break-even: 60 months. The savings are slightly larger at lower credit tiers because the starting rate is higher, making each 0.25% reduction more impactful on the payment.
Lender Variations
Every lender prices points differently, especially across credit tiers. Some lenders offer aggressive point pricing for high-credit borrowers. Others compete more aggressively on lower-credit pricing. The only way to know is to get multiple loan estimates with the same points scenario and compare the total cost.
Shopping Tips
Ask each lender for a rate quote with 0 points and with 1 point. Compare the rate difference and cost. If the rate reduction for one point is less than 0.25%, the lender's point pricing is unfavorable. Also check whether the lender offers lender credits in exchange for a higher rate, which may be a better alternative if you plan to hold the loan short-term.