Your credit score is the first filter lenders apply when you apply for a mortgage. It determines which loan programs you're eligible for, how much down payment you're required to bring, and — perhaps most importantly — what interest rate you'll be quoted. The difference between a 680 and a 760 FICO on a $400,000 conventional loan can be $75–$150/month. Over 30 years, that compounds to a very real number.
Here's the complete breakdown by loan type, what the rate gap actually looks like in dollars, and the fastest levers for borrowers who aren't at their target score yet.
Credit score floors by loan type
FHA loans. The Federal Housing Administration's minimum credit score requirement is defined in HUD's Single Family Housing Policy Handbook 4000.1: 580 FICO for 3.5% down payment, 500–579 FICO for 10% down payment. FHA is the dominant path for first-time buyers with limited credit history or scores in the 580–620 range. The tradeoff is mandatory mortgage insurance: an upfront MIP of 1.75% of the loan amount (can be financed into the loan) plus an annual MIP that ranges from 0.55% to 1.05% depending on term and LTV.
Conventional loans (Fannie Mae / Freddie Mac). The standard minimum FICO for a conforming conventional loan is 620, per Fannie Mae's Selling Guide. Freddie Mac's conforming standard mirrors this. Most borrowers should target 680+ to avoid the steepest loan-level price adjustments (LLPAs), and 740+ to reach the pricing tier where conventional becomes clearly cheaper than FHA when accounting for mortgage insurance costs. Above 780, pricing adjustments flatten. Lenders aren't just enforcing these floors on paper: the New York Fed counted $505 billion mortgage loans originated nationally in Q2 2026, and its Consumer Credit Panel data shows the credit box stayed tight — almost none of that volume went to borrowers below 620, and few below 660, per Calculated Risk's analysis of the underlying report.
VA loans. The Department of Veterans Affairs sets no minimum credit score for VA-guaranteed loans — one of the few programs where the government doesn't impose a FICO floor. Individual VA-approved lenders typically add their own "overlay" minimum, most commonly at 620. VA loans offer 0% down payment for eligible veterans, service members, and surviving spouses, and no private mortgage insurance requirement. The VA funding fee (1.25–3.30% of the loan amount, waived for veterans with service-connected disability) is the primary cost differentiator. The floor-free standard is a real benefit at scale, not just a policy footnote: the VA guaranteed 528,340 loans in fiscal year 2025 (Veterans Benefits Administration Annual Benefits Report), the large majority to borrowers who'd have needed a 620+ FICO to qualify anywhere else.
USDA guaranteed loans. USDA's Single Family Housing Guaranteed Loan Program also sets no official credit score minimum, per the USDA program guidelines. Approved lenders typically require 640. USDA loans are limited to eligible rural and suburban areas (USDA has a geographic eligibility map) and have household income limits. They offer 0% down payment for eligible borrowers.
Conventional conforming (higher standards). For borrowers accessing premium conventional products — Fannie's HomeReady, Freddie's Home Possible — the score floor generally starts at 660. These programs allow 3% down payment while staying within conforming loan limits.
The rate premium at each score tier
The credit score–to–rate relationship isn't linear. Fannie Mae and Freddie Mac use Loan-Level Price Adjustments (LLPAs) — a pricing grid that adds basis points to the rate (or to upfront fees) at each FICO tier below roughly 780. The CFPB's Explore Interest Rates tool lets you compare real-time rate quotes by score tier.
As a general framework from myFICO's mortgage rate guide, the approximate premium tiers on a 30-year conventional loan:
- 760–850: Best available pricing — minimal LLPA adjustments
- 740–759: Minimal additional cost above 760 tier
- 720–739: Modest LLPA addition, roughly 0.25%+ on rate
- 700–719: Moderate LLPA, roughly 0.5% over 760-tier rate
- 680–699: Notable LLPA — often 0.5–0.875% over 760-tier
- 660–679: Meaningful rate premium; FHA comparison often becomes favorable
- 640–659: High LLPA; FHA with MIP often has lower total monthly cost
- 620–639: Minimum conventional; highest LLPA tier; FHA usually wins on monthly cost
At a $400,000 loan, 0.75% APR difference = roughly $180/month difference in payment. Over 30 years (if you hold the full term), that's more than $64,000 in additional interest. The credit-score investment has a real return.
See which mortgage products fit your credit profile
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Explore mortgage options→FHA vs. conventional — which wins at different score levels?
Below 620: only FHA is available (conventional minimum not met).
620–660: FHA often wins on monthly cost despite the MIP, because the LLPA load on conventional at these scores can exceed the MIP cost.
660–680: The two are close. Run the math: take the FHA upfront MIP (1.75% of loan amount, often financed) + annual MIP (varies by LTV) against the conventional LLPA premium. At high LTVs with a 20%+ LTV, FHA's annual MIP drops after 11 years of payments, but conventional PMI can be removed when equity reaches 20% — which may be faster if property appreciates.
680–740: Conventional starts winning for most borrowers, assuming you can hit the 5–10% down payment threshold where PMI becomes removable. FHA MIP is permanent for most loans with LTV above 90% at origination.
740+: Conventional is clearly better. LLPA costs are minimal, and PMI elimination is achievable as equity builds.
See our Best Mortgages for First-Time Homebuyers 2026 guide for a side-by-side comparison of current FHA and conventional loan programs and lenders.
How to close the credit score gap
Pay down revolving balances — first and fastest lever. Credit utilization (balances ÷ credit limits across all cards) is the fastest-moving component of a FICO score. Dropping utilization from 70% to under 30% often produces score gains within 30–45 days of the creditor reporting the updated balance. Under 10% utilization consistently reaches the highest score tier for this factor.
Verify no errors are dragging your score. Under the Fair Credit Reporting Act, you're entitled to one free credit report annually from each bureau at AnnualCreditReport.com. Dispute inaccurate late payments, incorrect balances, or accounts that aren't yours — these can show up in 30–60 days after the bureau investigates.
Don't close old credit cards. Length of credit history and total available credit both contribute to FICO. Closing an old card raises utilization and reduces average account age — typically hurting scores.
Avoid new credit applications 6 months before mortgage application. Each hard inquiry can trim 2–5 points; multiple hard inquiries in a short window can add up. Mortgage rate-shopping is an exception — FICO counts multiple mortgage inquiries within a 14–45 day window as a single inquiry.
Make all payments on time starting now. Payment history is the largest FICO component. A 24-month clean payment history is the foundation lenders want to see.
For borrowers with scores in the 500s working toward FHA eligibility, 6–12 months of focused effort typically moves a file 40–80 points. If you're at 580 targeting 680+ for better conventional pricing, 18–24 months of disciplined credit management is a realistic timeline.
The bottom line
Most buyers can access mortgage financing at a 580 FICO via FHA, but the economics materially improve as you approach 700 and improve again above 740. The rate gap is real, measurable in dollars, and worth a delay of 6–12 months if you're close to a pricing threshold.
If you're not sure where your credit stands, AnnualCreditReport.com and most credit card issuers now provide free FICO score access. Know your number before you start the lender conversation.
For a side-by-side comparison of mortgage programs and lenders, see Best Mortgage Lenders 2026. For a full walkthrough of the homebuying process, see Best Mortgages for First-Time Homebuyers 2026.
This content is for educational purposes only. ClearValue Lending is a financial-education and comparison platform, not a lender, broker, or financial advisor. Mortgage program requirements, loan limits, and interest rates change frequently — verify current requirements directly with lenders or at hud.gov, fanniemae.com, and sba.gov before applying.