Your credit score is one of the first things a mortgage lender examines. But knowing the minimum score is just the starting point. Understanding how scores affect your interest rate, which programs open up at different score levels, and how to improve your score fast gives you real leverage in the mortgage process. This guide explains everything a first time buyer in Utah needs to know about credit scores and mortgages.

How Credit Scores Work

Your credit score is a three digit number ranging from 300 to 850 that represents your creditworthiness. Lenders use it as a quick measure of how likely you are to repay borrowed money. A higher score indicates lower risk to the lender.

Three major credit bureaus track your credit information: Equifax, Experian, and TransUnion. Each bureau maintains a separate report and calculates a separate score based on your payment history, outstanding debt, age of accounts, and other factors. When you apply for a mortgage, the lender typically pulls reports from all three bureaus and uses the middle score in their decision. This is important: if your scores are 620, 660, and 700, your lender uses 660.

The most commonly used credit score in mortgage lending is the FICO score (developed by Fair Isaac Corporation). Your FICO score is updated regularly as new information is reported by creditors.

Reference: myFICO.com and CFPB Understanding Credit Scores guide.

Minimum Credit Scores Required by Loan Type

FHA: The Federal Housing Administration allows credit scores as low as 580 for the standard 3.5 percent down program. If your score falls between 500 and 579, you can still get an FHA loan but will need to put 10 percent down. This is good news for buyers with limited credit history or past issues.

Conventional: Conventional loans typically require a minimum of 620. This is a common threshold across lenders. Some programs like Fannie Mae HomeReady offer 3 percent down with a 620 score.

VA: The Department of Veterans Affairs sets no official minimum credit score. Most VA lenders require 580 to 620, but it varies. If you are a veteran or active duty service member, ask your lender about their specific requirements.

USDA: USDA loans for rural properties require a minimum score of 640. This is the highest minimum among government programs.

Reference: HUD Mortgagee Letter 2025 03, Fannie Mae Selling Guide, VA, and USDA Single Family Housing Guaranteed Loan Program.

How Your Score Affects Your Interest Rate

The minimum score gets you approved. But your actual score determines your interest rate. A 100 point difference in credit score typically translates to 0.5 percent to 1.5 percent difference in interest rate on a conventional loan. On a $375,000 mortgage, this means a monthly payment difference of $100 to $300.

Consider this scenario: A $375,000 mortgage at 7 percent interest costs $2,490 per month. The same mortgage at 6.5 percent costs $2,388. That is $102 per month. Over a 30 year loan, you pay an extra $36,720 in interest just because your credit score is 100 points lower.

This is why improving your score before applying for a mortgage is so valuable. A small effort to increase your score from 640 to 700 can save you thousands of dollars in interest.

Reference: CFPB myFICO Loan Savings Calculator and mortgage rate charts.

The Breakdown of Your Credit Score: What Matters Most

Your FICO score is calculated using five major factors. Understanding what goes into your score helps you know where to focus your improvement efforts.

• Payment History (35%): Whether you pay bills on time. This is the single most important factor. Even one missed payment can significantly damage your score. Conversely, years of on time payments build your score steadily.
• Amounts Owed (30%): How much of your available credit you are using. This is measured as credit utilization. If you have a credit card with a $10,000 limit and a $2,000 balance, you are at 20 percent utilization, which is good. At $7,000, you are at 70 percent, which hurts your score. Lenders see high utilization as a sign of financial stress.
• Length of Credit History (15%): How long you have had credit accounts. Older accounts are good. Newer accounts are less valuable. This is why closing old credit cards hurts your score (you lose the age) and why becoming an authorized user on an older family account can help.
• New Credit (10%): Recent new credit inquiries and accounts opened. If you apply for multiple credit cards in a short period, your score drops. Each inquiry and new account slightly damages your score for a time.
• Credit Mix (10%): Variety of credit types you have. Lenders like seeing you manage both revolving credit (credit cards) and installment credit (car loans, mortgages). A diverse credit mix slightly boosts your score.

Reference: myFICO.com Score Composition information and CFPB credit score guide.

How to Improve Your Credit Score Before Applying

Pay Down Revolving Balances: This has immediate impact. If you have credit card debt, paying it down below 30 percent utilization boosts your score. This is the quickest improvement. If you have a $5,000 balance on a $10,000 limit card, paying it down to $3,000 immediately helps your score.

Avoid New Credit Applications: Do not apply for new credit cards, car loans, or other credit in the six months before applying for a mortgage. Each inquiry and new account lowers your score. Do not even apply for retail store cards when checking out, as these are recorded as inquiries.

Dispute Credit Report Errors: One in five credit reports contains an error. These errors can lower your score. Check your free annual report at AnnualCreditReport.com. If you see a mistake (a debt you paid off still showing as open, a late payment you made on time, or an account that is not yours), file a dispute. The bureaus have 30 days to investigate. Correcting errors often improves your score.

Become an Authorized User: Ask a family member with good credit if you can be added as an authorized user on their credit card. You do not have to use the card, but their account history will appear on your credit report, potentially boosting your score. Choose someone with a long history and low utilization.

Set Up Autopay: Payment history is 35 percent of your score. Setting up automatic payments for all your bills ensures you never miss a payment, even by accident. Missing one payment can damage your score for seven years.

Reference: FTC Credit Monitoring and Dispute Guide, AnnualCreditReport.com, and myFICO.com improvement strategies.

How Long Does It Take to Improve Your Score?

Improvements take time. Here are realistic timelines:

• 30 to 60 days: Paying down credit card balances below 30 percent utilization. This is fast because credit card companies report balances monthly. As soon as they report your lower balance, your score improves.
• 3 to 6 months: Correcting errors on your credit report. Once you dispute an error, the bureau has 30 days to investigate. If they correct it, your score bounces back. Becoming an authorized user also takes time for the account to appear on your report.
• 6 to 12 months: Establishing new positive payment history if you had late payments. Each month of on time payments slowly improves your score. A one year history of good payment might raise your score 40 to 100 points.
• 7 years: Completely recovering from a missed payment, late payment, or collection account. These negative items fall off your credit report after seven years. Before that, their impact lessens with time.

Free Ways to Check Your Credit Score

AnnualCreditReport.com: Federally mandated, you get one free report from each bureau annually. This shows what information is on your report but not always your FICO score.

Credit Karma: Free FICO score estimates, monitoring, and dispute tools. Accurate enough for your purposes.

Experian Free Tier: Experian offers a free credit score directly.

Bank App Scores: Many banks and credit unions now include credit score monitoring in their apps. Check yours.

Your Lender: When you apply for a mortgage, your lender will pull your official FICO score. This is the most accurate number.

Do not pay for credit score monitoring unless you want credit protection services. The free options are sufficient.

Reference: AnnualCreditReport.com (official), Credit Karma, and myFICO.com free score options.

Key Actions to Take Right Now

• 1

  Check your free credit report. Go to AnnualCreditReport.com and request reports from all three bureaus. Look for errors or unfamiliar accounts.

• 2

  Check your FICO score. Use Credit Karma or your bank app to see your current score. This tells you which loan programs you qualify for.

• 3

  Dispute any errors. If you find errors on your credit report, dispute them at the bureau website. This can improve your score in 30 days.

• 4

  Pay down credit cards. If you have balances above 30 percent utilization, pay them down. This improves your score within 30 to 60 days.

• 5

  Avoid new credit applications. Do not apply for new cards, car loans, or other credit for at least six months before applying for a mortgage.

• 6

  Set up autopay. For all existing bills and credit accounts, set up automatic payments to ensure no missed payments.

• 7

  Talk to a lender. Once you have checked your score and taken initial steps, meet with a mortgage lender. They can confirm your eligibility and discuss your options.