What your credit score is worth on a mortgage
Your credit score affects your mortgage in two ways. Conventional loans are priced with Fannie Mae and Freddie Mac adjustments that rise as scores fall, which shows up as a higher rate or points. And if you put less than 20% down, private mortgage insurance is also priced by credit score. Together, a lower score can add a meaningful amount to your monthly payment for as long as you keep the loan.
An example
On a $450,000 home with 10% down, moving from the 700–719 bracket up to 720–739 saves roughly $40 a month in payments and PMI. Moving from 700 to 780 or higher saves considerably more, and over 30 years the difference in interest can reach tens of thousands of dollars.
The brackets that matter
Pricing changes in 20-point steps: 640, 660, 680, 700, 720, 740, 760 and 780. A few points can move you into a better bracket, so it’s worth knowing where you stand before you apply.
Raising your score before you apply
- Pay credit card balances well below 30% of their limits, and ideally under 10%, before the statement date.
- Dispute errors on your credit reports.
- Avoid opening new accounts or financing big purchases in the months before applying.
- Ask lenders about a rapid rescore if you’ve just paid down balances.
When to apply
If you’re a few points below a bracket and not in a hurry, waiting a month or two while paying down balances can be worth it. If you need to buy now, consider an FHA loan, which doesn’t use these price adjustments and can cost less below about 680. You can also refinance later if your score improves meaningfully.
Questions buyers ask
Is it worth delaying a purchase to raise my score?
If you’re close to the next bracket and can raise your score within a month or two, it often is. If it would take longer, buying now and refinancing later may be better, especially in a rising market.
What credit score do I need for the best mortgage rate?
Under Fannie Mae’s pricing, 780 or higher gets the lowest adjustments.
How fast can I raise my credit score?
Paying down card balances can help within a month or two; a lender’s rapid rescore can update it in days.
Does checking my own score lower it?
No. Only lender credit checks (hard inquiries) can, and mortgage shopping within a short window usually counts as one.