The first answer most buyers get when they ask about credit scores and mortgages is a single number. Somebody tells them 620. Somebody else tells them 740. The honest answer is that there are at least two different numbers that matter, and they do two different things. One is the score that lets a loan close at all. The other is the score that earns a rate worth taking. Buyers who confuse the two either get told no when they should have heard yes, or take an approval at a rate that quietly adds thirty thousand dollars to the cost of the mortgage over thirty years. The gap between those two numbers is wider than most people think, and it shifts depending on the loan program, the down payment, and what shows up on the credit report the day a mortgage lender pulls it.
This is the actual answer to the credit score to buy a house question, written for borrowers who are six to twelve weeks from applying and want to know exactly what to do before the underwriter sees the file.
What Credit Score Do Mortgage Programs Actually Require?
Each major program sets its own floor, and the floors are not close to each other. FHA goes the lowest because the loans are insured by the Federal Housing Administration, which limits the lender’s exposure if a borrower defaults. The published FHA minimum is 580 for a 3.5 percent down payment and 500 for a 10 percent down payment. In practice, most national lenders add an overlay on top of the FHA guideline and start their FHA approvals at 620 to 640. A 580 score works at lenders that follow the published guideline directly. Below 580, the program technically still allows a 10 percent down approval, but the list of lenders willing to write the loan shrinks fast. Borrowers in the 580 to 640 band who get an FHA approval are also signing up for the FHA loan’s mortgage insurance premium, which behaves differently from conventional PMI and is worth understanding before locking the rate.
VA loans for veterans and active-duty service members do not have a credit score minimum published by the Department of Veterans Affairs. The cutoff is set by the lender. The typical floor is 580 to 620. The VA’s own handbook focuses more on residual income, which is the cash a borrower has left each month after the new housing payment and all recurring debts, than on the score itself. A borrower with a 595 score and strong residual income can sometimes close a VA loan that a higher-score borrower with thin reserves cannot.
Conventional loans, backed by Fannie Mae or Freddie Mac rather than the federal government, set the minimum at 620. That floor assumes the rest of the file is clean: 20 percent down, a debt-to-income ratio under 43 percent, and two to six months of reserves. With less down or higher debt, the practical conventional minimum climbs to 640 or 660. Most low-down conventional first-time buyer programs that allow 3 to 5 percent down want at least 660. USDA loans for rural and semi-rural properties sit at 640, which is the score the GUS automated underwriting engine needs to issue an accept recommendation. A USDA file below 640 can still close through manual underwriting, but the approval rate drops and the timeline stretches.
If the credit score is closer to 580 and the down payment is the actual bottleneck, the math sometimes works better through zero-down loan options like VA or USDA that bypass the down-payment requirement entirely for borrowers who qualify on service history or property location. The trade is on the eligibility side, not the score side. A borrower without VA eligibility and outside a USDA-eligible area still has to clear the FHA or conventional floor.
Why Do Good Rates Require a Higher Score Than Approval?
The minimum score gets a loan approved. It does not get a competitive rate. Two borrowers can qualify for the same conventional loan on the same property and pay rates that are a half-point apart purely because of where their middle credit score falls inside the rate tier. The pricing system that drives that gap is called Loan Level Price Adjustments, or LLPAs. Fannie Mae and Freddie Mac publish LLPA grids that adjust pricing based on the combination of credit score and loan-to-value ratio. The grid uses brackets at 620, 640, 660, 680, 700, 720, 740, and 760.
The widest jumps in pricing happen at 680 and 740. A borrower with a 739 middle score who puts 10 percent down sees a meaningfully higher rate than a borrower at 740 putting the same 10 percent down on the same loan amount. On a $400,000 loan, the difference between the 720 and 740 tier can run $30 to $60 a month, which is $11,000 to $22,000 over a 30-year term. The math is similar at the 680 line. That is why moving from 720 to 740, or from 678 to 681 in time for the application, is often worth more than chasing a lower rate by paying mortgage points to buy down the rate. A score change moves the rate for free; a point purchase costs cash up front and only pays back if the loan stays in place long enough to recoup the upfront cost.
FHA pricing is less score-sensitive than conventional. A 620 FHA borrower pays a rate closer to a 740 FHA borrower than a 620 conventional borrower pays compared to a 740 conventional one. That is one of the reasons FHA is usually the better fit between 580 and roughly 660. Above 700, conventional usually wins because the mortgage insurance comes off at 80 percent loan-to-value and the LLPA adjustments shrink. Above 740, the difference is large enough that some borrowers refinance from FHA to conventional within the first two to three years to escape the insurance.
VA loans do not use LLPAs. The VA rate sheet adjusts mostly by loan type (purchase, IRRRL, cash-out) and lock period, not by score. A 620 VA borrower and a 760 VA borrower can see rates that are roughly a quarter point apart, which is much narrower than the conventional spread. That tighter spread is part of why VA loans stay competitive even for borrowers with the kind of scores that get penalized in the conventional grid.
How Do Lenders Pull and Score Your Credit for a Mortgage?
A mortgage credit pull is not the same pull a credit card application or a free consumer app runs. Mortgage lenders use a tri-merge: one hard inquiry that pulls reports from all three bureaus (Equifax, Experian, and TransUnion) at the same time and returns the score each bureau calculates. The scoring model used for mortgages is older than the one consumer apps display. Conventional and FHA mortgage files are required to use FICO 2 (Experian), FICO 5 (Equifax), and FICO 4 (TransUnion). Consumer apps usually display FICO 8 or VantageScore 3.0, both of which can run twenty to forty points higher than the mortgage-specific versions on the same underlying file.
That gap matters in two ways. First, a 660 displayed in a free credit app can come back as 625 to 640 in a mortgage tri-merge, which is sometimes the difference between qualifying for conventional at 620 and being routed to FHA. Second, the mortgage system uses the middle of the three returned scores, not the highest and not the average. If a borrower’s tri-merge returns 712, 680, and 660, the underwriting engine and the LLPA grid both use 680. Two borrowers with the same average score can land in different rate brackets based on which of their three bureau scores is the middle one.
The pull itself is a hard inquiry and trims a few points off the score temporarily. Mortgage shopping inquiries are bundled by the major scoring models inside a 14- to 45-day rate-shopping window, which means pulling three lender pre-approvals back to back counts as one inquiry for scoring purposes, not three. Most underwriters request the credit report at the start of a real mortgage pre-approval and again within ten business days of closing. Anything that changes between those two pulls (a new card, a missed payment, a large dispute filed) shows up on the second pull and can force re-pricing or, in rare cases, denial of a loan that was already cleared to close.
Soft pulls are a separate category. A loan officer can pull a soft inquiry to quote a rate or pre-qualify a borrower without leaving a hard footprint on the report, but that quote is not a real approval. The hard tri-merge is what underwriting works from.
What Can You Fix in 30 to 60 Days Before Applying?
Short timelines call for the moves that change the score fastest. Three of them tend to work, and one common piece of advice does not. The fastest is paying down revolving balances. Credit card utilization, which is the ratio of what is owed to the total credit limit, carries more weight in the mortgage scoring models than most people realize. A borrower carrying $4,500 across cards with a $6,000 combined limit (75 percent utilization) can pick up twenty to forty mortgage-score points by getting balances below 30 percent of the limit before the next statement cycle posts. The detail that matters is timing: pay before the statement closes, not before the due date. The bureaus report whatever balance is on the statement that month, not the balance after payment. Paying on the due date can leave the high utilization on the report for another full cycle.
The second-fastest move is disputing legitimate errors. A Consumer Financial Protection Bureau study found that roughly one in five credit reports contains at least one material error. Wrong account balances, duplicate collections, accounts that should have aged off the file after seven years, and tradelines reported under the wrong name are all common. Any one of these can pull a mortgage score down by 10 to 60 points. A direct dispute filed through the bureau’s website usually resolves within 30 days. After the bureau corrects the file, a mortgage lender can request a rapid rescore, which pushes the corrected data through the FICO model in three to five business days instead of waiting another full reporting cycle.
The third move is leaving everything else alone. Do not open new credit cards. Do not close old cards, because length of credit history accounts for 15 percent of the FICO model and old cards anchor the average age. Do not finance furniture, a car, or a wedding ring on a payment plan during the application window. Each new tradeline adds an inquiry, lowers average account age, and resets the recency clock the model uses. Three or four of those moves stacked together can erase the score gains from paying down utilization.
The piece of advice that does not work in 30 days is becoming an authorized user on a parent’s old credit card. The major mortgage scoring models reduced the weight of authorized user accounts in 2008 to limit credit-piggybacking schemes. The boost still shows up on consumer scores, but on a mortgage tri-merge the lift is usually a few points, not the 50-point jump some advisors still describe. Adding an authorized user line can help on the margin, but it is not a substitute for paying down utilization or fixing an error.
When to Wait Versus Apply
If the middle score is within ten points of the next LLPA bracket (640, 660, 680, 700, 720, 740, or 760), waiting one or two payment cycles to push past the line usually changes the rate enough to justify the delay. If the score is already at a bracket ceiling and rates are dropping, applying now and accepting the current pricing is often the better trade. The decision depends on where the score sits inside the grid, not on how long the buyer has been waiting to get into a house.
Fellowship Home Loans walks borrowers through the credit picture before the first hard pull, including a review of the report a loan officer pulls in soft mode and a plan for any fixes that would change the bracket. If the credit score to buy a house is the gating question and the timeline matters, the conversation is worth having before the application clock starts.
Frequently Asked Questions
What is the minimum credit score to buy a house?
The published floors are 500 for FHA with 10 percent down, 580 for FHA with 3.5 percent down, 580 to 620 for VA (set by the lender, not the VA itself), 620 for conventional, and 640 for USDA. Most national lenders add overlays on top, so practical FHA minimums often sit at 620 to 640. The lowest score that actually closes a loan in a given month also depends on the overall file, including down payment, debt-to-income ratio, and reserves.
Can you buy a house with a 580 credit score?
Yes, through FHA at the published 3.5 percent down threshold, and through VA at most lenders that allow VA loans down to 580. The catch is overlays: many large lenders set their internal FHA floor above 580, so a 580 borrower may need to call several lenders to find one that closes at the published guideline. Rates at 580 are higher than rates at 620 or 660, but the loan is closable for most borrowers who clear the rest of the underwriting checks.
Will a soft credit check hurt my mortgage application?
No. A soft inquiry is not visible to other lenders and does not affect the score. Loan officers use soft pulls to quote rates or pre-qualify borrowers before committing to a hard tri-merge. The hard pull happens when the file moves into formal pre-approval or underwriting, and that pull does shave a few points off the score temporarily. Multiple mortgage hard inquiries inside a 14- to 45-day rate-shopping window are bundled by the scoring models and count as one inquiry, not several.
Do mortgage lenders use FICO 8 or FICO 9?
No. Conventional and FHA files are required to use the classic mortgage versions: FICO 2 (Experian), FICO 5 (Equifax), and FICO 4 (TransUnion). FICO 8 and FICO 9 are used by credit card issuers, auto lenders, and consumer apps, but not by Fannie Mae, Freddie Mac, FHA, or VA-approved mortgage underwriting engines. The mortgage versions usually score lower than FICO 8 on the same file, sometimes by twenty to forty points, which is why a free credit app score is not a reliable predictor of where a mortgage tri-merge will land.
How much can a credit score change a mortgage rate?
On conventional loans, the spread between a 620 score and a 760-plus score can be a half to three-quarters of a percentage point depending on the loan-to-value ratio. On a $400,000 loan, that translates to roughly $125 to $190 in monthly payment difference and $45,000 to $68,000 over a 30-year term. The biggest single-bracket jumps happen at 680 and 740. On FHA loans, the spread is narrower, usually a quarter point or less between a 620 and a 760 file. On VA loans, the spread is the narrowest, usually under a quarter point across the full score range.
How long does it take to raise a credit score before applying for a mortgage?
Paying revolving balances below 30 percent utilization usually moves the score within one statement cycle, which is 30 to 45 days. Disputing and correcting a legitimate error usually takes 30 days at the bureau plus three to five business days for a rapid rescore through a mortgage lender. Building positive history on a thin file (fewer than three open tradelines) generally takes six to twelve months. Bigger structural fixes, like waiting out a 30-day late or a collection, can take up to seven years to fully clear, although the impact fades over time.
Will a 750 credit score get the lowest mortgage rate?
It will get most of the available pricing, but not all of it on conventional loans. The conventional LLPA grid has a separate top bracket at 760-plus that prices slightly better than the 740-to-759 bracket, depending on loan-to-value. The difference between 750 and 760 on a 5 percent down conventional loan is usually a sixteenth to an eighth of a point in rate, which is small but not zero. On FHA and VA loans, 750 is effectively in the same pricing tier as 760, so chasing the extra ten points there is rarely worth delaying the application.
