What Credit Score Do You Need to Buy a House in 2026?

Published June 20, 2026 · The Guidebook & Co.™

The headline number is "620" — the conventional loan floor. The honest answer is more nuanced. Your score doesn't just decide whether you qualify. It decides how much that mortgage costs you every single month for 30 years. Here's exactly what each tier buys you in today's market.

A 60-point score difference can cost you $400 a month on a $400,000 mortgage. Over 30 years, that's a second house.

The minimum scores by loan type (2026)

• FHA loan — 580 minimum (3.5% down), 500 (10% down)
• VA loan — No federal minimum, but lenders typically require 580-620
• USDA loan (rural) — 640 typical lender minimum
• Conventional loan — 620 minimum, 740+ for best pricing
• Jumbo loan — 700-720 minimum, 760+ for best pricing

What each score costs you (on a $400,000 mortgage, 30-year fixed)

Rates change daily, but the spread between tiers is stable. As of June 2026, with the conventional 30-year hovering around 6.4-6.7% for top borrowers:

• 760+: ~6.45% APR → $2,512/month principal & interest
• 740-759: ~6.625% → $2,560/month (+$48)
• 720-739: ~6.875% → $2,627/month (+$115)
• 700-719: ~7.125% → $2,696/month (+$184)
• 680-699: ~7.375% → $2,765/month (+$253)
• 660-679: ~7.625% → $2,834/month (+$322)
• 640-659: ~7.875% → $2,905/month (+$393)
• 620-639: ~8.25% → $3,005/month (+$493)

That last row is the punchline. The borrower with a 620 score pays $493 more per month than the borrower with a 760. Over 30 years that's $177,480 in extra interest — on the same house, the same loan amount, the same down payment. The only difference is the three-digit number.

The other costs of a low score

Beyond the rate, a lower score triggers:

• Higher mortgage insurance (PMI/MIP): FHA MIP runs 0.55% annually for the life of the loan at 3.5% down. PMI on conventional varies by score — a 620 borrower pays roughly 2-3x the PMI of a 760 borrower
• Larger down payment required: Conventional loans below 680 often demand 5-10% down instead of 3%
• Tighter debt-to-income (DTI) limits: Above 720 you can stretch to 50% DTI. Below 660, lenders pull back to 43%
• Lender overlays: Even with an FHA 580 minimum, most lenders impose "overlays" of 620 or 640 — meaning they won't actually do the loan at 580 even if FHA would

The real target: 740

740 is the sweet spot. You get every loan program, the best PMI tiers, the most aggressive rate sheets. Going from 740 to 800 saves you maybe 0.125% — a few thousand over the life of the loan. Going from 640 to 740 saves you 1.25-1.5% — over $100,000.

If your score is 660 and you're shopping a house, the right move is almost always: delay the offer by 60-120 days, fix the score, save 6 figures. A house that's right for you today is still right for you in October.

What moves a mortgage score (different from what you think)

Mortgage lenders pull a tri-merge: Equifax 5, Experian 2, TransUnion 4 — older FICO models than the ones credit card companies use. The mid-score is what counts. These older models care less about new credit and more about utilization and payment history.

The fastest 60-day score moves for a mortgage:

1. Drop utilization under 9% on every card 30 days before pulling credit — not 30%, not 10%, under 9%
2. Don't open or close anything for 90 days before applying — a single new account can drop your mid-score 10-25 points
3. Pay off small collections only if the lender requires it — paying an old collection can re-age it under older models and hurt the score. Get the lender's guidance before sending a dollar
4. Become an authorized user on a clean, old, high-limit card — older FICO models still honor AU positions

The "rapid rescore" most buyers don't know about

If you're under contract and your score is 5-30 points below the next tier, your loan officer can do a rapid rescore through the bureaus for $50-90 per item. You pay off a card, the lender pushes the update through, and your score reflects it in 3-5 business days instead of 30. This can save you a full rate tier at closing. Most loan officers won't volunteer it — you have to ask.

What to do this week if you're 6 months from buying

1. Pull all three reports at annualcreditreport.com
2. Calculate your utilization per card and total
3. Dispute any errors via certified mail
4. Stop opening anything new — no store cards at checkout, no auto loan shopping outside a 14-day window
5. Pay every card down to under 9% before each statement closes
6. Talk to a mortgage broker (not a bank) before you talk to a real estate agent — the broker pulls your real tri-merge and tells you the exact gap to the next tier

The pattern

The score isn't the obstacle. The behavior is. Mortgage lenders don't reward what you've earned — they reward what you've shown over the last 24 months of statements. Show them clean and the rate falls. Show them messy and the rate climbs. The house is the same either way.

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