What Is the Minimum Credit Score for a Conventional House?

Most lenders will consider you for a conventional loan once your credit score reaches the typical cutoff of 620. At that level, you're usually eligible for standard underwriting, meaning the loan can be approved and priced with conventional rates, provided you also meet the usual debt-to-income limits and have a down payment of at least 3 percent. Scores above 680 often unlock the most competitive interest rates, while scores in the 620-679 range still qualify but may come with slightly higher pricing or require a larger down payment to offset perceived risk.

If your score falls below 620, many conventional lenders will still look at your application, but approval becomes less certain and the loan may be classified as "non-prime." In those cases, you might need to compensate with a bigger down payment-often 10 percent or more-or provide a co-borrower with stronger credit. Some lenders also tighten other criteria, such as lowering the allowable debt-to-income ratio, to mitigate the lower credit score. Ultimately, while 620 is the benchmark most borrowers aim for, the exact threshold can vary from one institution to another.

Lenders gravitate toward a credit score of 620 because it sits at the intersection of risk and reward: scores above 620 generally signal enough repayment history to meet standard underwriting guidelines, while still leaving room for competitive pricing; scores below that threshold often trigger stricter scrutiny, higher interest rates, or the need for additional compensating factors.

• A score of 620+ usually satisfies the baseline "minimum score" many conventional-loan programs use for approval.
• Borrowers with 620-639 tend to receive near-prime rates, whereas those at 640-699 often qualify for better pricing tiers.
• Below 620, lenders frequently require larger down payments, lower debt-to-income ratios, or a co-borrower to offset perceived risk.

When your credit score falls under the typical 620 cutoff, many lenders will still consider you for a conventional loan, but the approval process becomes noticeably tougher. Expect stricter underwriting standards: lenders often require a larger down payment-sometimes 10% to 20% instead of the usual 3%-5%-and they may flag you for a higher risk tier, which can translate into a higher interest rate or additional fees. In some cases, the loan may be "approved with conditions," meaning you'll need to remediate recent negative items on your credit report or provide extra documentation to prove repayment ability.

Conversely, a sub-620 score doesn't automatically close the door on conventional financing if you bring other strengths to the table. A solid employment history, low debt-to-income ratio, or a sizable cash reserve can offset the lower score in the lender's eyes. Adding a co-borrower with a stronger credit profile can also improve your overall risk picture, potentially securing a more favorable rate and a lower down-payment requirement. In short, while a score below 620 generally leads to tighter terms, compensating factors can still make a conventional loan viable.

Astrong income can make the difference between a lender merely “considering” you and actually approving a conventional loan, even if your credit score sits below the typical cutoff. When you demonstrate that you have enough earnings to comfortably cover housing costs, lenders view the risk of a lower score as less threatening because they see a clear ability to meet monthly obligations.

1. Calculate your debt-to-income (DTI) ratio. Add up all monthly debt payments (car loans, student loans, credit-card minimums) and divide by your gross monthly income. A DTI under 36 percent is often viewed favorably, and many lenders will stretch the limit to 43 percent if your income is solid.
2. Show stable earnings. Lenders prefer at least two years of consistent employment or self-employment income documented on tax returns and pay stubs. Consistency reduces perceived risk, allowing a lower credit score to be offset.
3. Provide proof of cash reserves. Having several months of reserve funds-enough to cover mortgage payments, taxes, and insurance-signals that you can handle unexpected expenses, which can compensate for a weaker score.
4. Leverage a larger down payment. Putting down 20 percent or more not only lowers the loan-to-value ratio but also demonstrates financial discipline, giving lenders another reason to approve a borrower with a sub-620 credit score.

A higher credit score signals to lenders that you're less likely to miss payments, so they can afford to offer you a lower mortgage rate. Most conventional loan programs use a sliding scale: each 20-point bump above the typical cutoff (around 620) can shave roughly 0.15-0.25 percentage points off the interest rate. That may sound modest, but over a 30-year loan it translates into thousands of dollars saved in total interest. In addition, a strong score often unlocks the most competitive pricing tiers that many lenders reserve for their "prime" borrowers, reducing the need for discount points or higher fees.

When your credit score climbs into the 700-plus range, you not only benefit from the base rate reduction but also gain flexibility in other pricing factors. Lenders may be willing to lower the loan-to-value (LTV) requirement, waive private-mortgage-insurance (PMI) premiums, or offer more favorable terms on adjustable-rate options. In short, the better your score, the more levers a lender can pull to keep your monthly payment down, making the overall cost of the conventional loan significantly more affordable.

A co-borrower-usually a spouse, partner, or family member-adds a second credit profile to the loan file, which lenders evaluate alongside the primary applicant's information.

When the primary borrower's credit score hovers near the typical cutoff (around 620 for many conventional loans), the co-borrower's higher score can pull the combined risk assessment lower, making lender approval more likely. The extra income reported by the co-borrower also improves the debt-to-income (DTI) ratio, another key metric that lenders use to decide whether a borrower can comfortably afford the mortgage payments.

Example scenarios

• Primary score 610, co-borrower 750: The strong co-borrower score offsets the lower primary score, often resulting in lender approval and a competitive interest rate.
• Primary score 580, co-borrower 720, larger down payment: Even though the primary score is below the usual minimum, the high co-borrower score plus a 20 % down payment can satisfy many lenders' qualification thresholds.
• Both scores 630, modest income: Adding each other's incomes may bring the household DTI under 43 %, clearing another common hurdle for conventional loan qualification.

In each case, the presence of a qualified co-borrower expands the pool of acceptable risk factors, increasing the odds that a conventional loan application will be approved.

A larger down payment can soften the lender's view of a borderline credit score because it reduces the loan-to-value (LTV) ratio and the amount of risk the bank is taking on. When you put more equity into the purchase, many lenders are willing to overlook a credit score that sits just below their typical cutoff, since the higher cash cushion signals stronger repayment capacity.

• Put down at least 20 percent of the purchase price to eliminate private-mortgage-insurance (PMI) and often unlock lower underwriting thresholds.
• Increase your down payment to 25-30 percent if your score is in the 580-619 range; many conventional lenders will still consider you for a loan, albeit with a higher interest rate.
• Offer a down payment of 40 percent or more when your score falls below 580; this level of equity can sometimes compensate for a weak credit history and keep the loan from being rejected outright.

By boosting the down payment, you not only improve your chances of lender approval but also position yourself for better pricing and reduced monthly costs. Even if the credit score remains modest, the added equity demonstrates financial discipline and can tip the balance in your favor.

A sudden drop in your credit score-whether it's a few dozen points or a larger swing-can instantly shift you from "qualified" to "questionable" in the eyes of many lenders. When you apply for a conventional loan, the underwriting system pulls a fresh credit report; if that report shows a recent dip, the lender may interpret it as increased risk and either deny the application outright or push you into a higher-interest tier, even if you previously met the typical cutoff of 620.

The timing of the dip matters as much as its size. A decline that appears within the last 30 days is especially problematic because most lenders use the most current score for rate pricing. If the dip occurred after you submitted your loan estimate but before final approval, the lender can legally adjust your rate or request additional documentation, which often leads to delayed closing or outright rejection if the new score falls below the lender's internal threshold.

Mitigating this risk starts with proactive monitoring. Keep an eye on credit inquiries, pay down balances before applying, and avoid opening new lines of credit in the months leading up to your mortgage submission. If a dip does happen, be prepared to provide a brief explanation and evidence of corrective steps-such as paying off a delinquent account-so the underwriter can see that the drop is temporary rather than indicative of ongoing financial instability.

Review your credit reports from the three major bureaus, dispute any inaccurate entries, and request corrections; cleaned-up reports can lift your score within a few weeks.

Pay down revolving balances to bring your credit utilization below 30 % (ideally under 10 %); this single change often produces the biggest jump in a short period.

Keep all existing accounts open, even if you're not using them; closing accounts reduces your overall credit history length and can lower your score.

Set up automatic payments for all bills to avoid missed or late payments, which can drag your score down by dozens of points for each occurrence.

Avoid applying for new credit cards or loans in the 3- to 6-month window before you plan to apply for a conventional loan; each hard inquiry can shave 5-10 points off your credit score.