Tool · Credit-Band Cost
What your credit band actually costs
Credit score doesn't nudge a mystery rate — on a conventional loan it triggers a specific, published fee by credit band and LTV. This tool turns Fannie Mae's own price-adjustment grid into dollars at your loan size. It shows the charge; it never tells you what to do about it.
Default assumptions & where they come from
Every pre-filled figure below is editable. Example inputs (home price, income) are illustrations, not data; the assumptions listed here stand in for real-world statistics, so each carries its public source.
- Base note rate: 6.5% (30-year fixed)Editable. Near the Freddie Mac PMMS 30-year average at verification; the live figure is on the Fee & Rate Index.
Your loan
Credit score changes conventional-loan pricing through a published fee schedule — not a vague “better rate.” Set your loan, pick your band, and see the exact charge.
Loan $382,500 · LTV 90.0% · fee band 85–90%
Used to amortize the fee if it's financed into the loan.
These are Fannie Mae's loan-level price adjustments for conventional loans — the same fee grid every lender prices from. FHA, VA, and USDA loans use different rules. Lenders often convert the fee into a slightly higher rate instead of charging it upfront; the total cost is comparable either way.
Credit band
Fee
Upfront cost
vs. best band
Credit-band premium — 700–719 vs. ≥ 780
$3,825
- Your band's fee
- $4,781 (1.25%)
- Extra over the loan, if financed
- +$8,705
At 90.0% LTV, a 700–719 borrower is charged 1.25% of the loan versus 0.25% for the top band — a real, published difference of $3,825. It shows what the band costs today; it is not a promise about your rate or a suggestion to do anything in particular.