How Your Credit Score Affects Your Mortgage Approval and Interest Rates
- John Lee - Arise Mortgage
- May 29
- 3 min read
When you're applying for a mortgage, one of the most critical factors lenders consider is your credit score. This three-digit number can significantly impact whether you're approved for a mortgage and how much you'll pay in interest over the life of your loan. Understanding how your credit score influences your mortgage application can help you prepare and position yourself for better rates and terms.
What Is a Credit Score?
A credit score is a numerical representation of your creditworthiness. It’s calculated based on your credit history, including:
Payment history (35%) – Do you pay your bills on time?
Amounts owed (30%) – How much of your available credit are you using?
Length of credit history (15%) – How long have you had credit?
New credit (10%) – Have you applied for new credit recently?
Credit mix (10%) – Do you have a variety of credit types (e.g., loans, credit cards)?
Scores typically range from 300 to 850. The higher your score, the more financially trustworthy you appear to lenders.
Credit Score Ranges and What They Mean
Credit Score Range | Rating | Impact on Mortgage |
300–579 | Poor | Very difficult to get approved |
580–669 | Fair | Subprime approval, higher interest rates |
670–739 | Good | More favorable rates and terms |
740–799 | Very Good | Better chances of approval and lower interest |
800–850 | Excellent | Best rates and loan terms available |
How Credit Score Affects Mortgage Approval
Lenders use your credit score to assess risk. A higher score tells lenders that you’re more likely to repay your mortgage on time. Here's how it affects the approval process:
Lower scores might lead to outright rejection or only approval for high-interest subprime loans.
Moderate scores can get you approved, but you may face stricter lending terms.
Higher scores improve your chances of approval and qualify you for larger loan amounts and better terms.
How It Affects Your Interest Rate
Your credit score doesn't just determine approval—it also affects the interest rate you're offered. Even a small difference in interest rates can significantly affect your monthly payment and the total cost of your mortgage.
For example:
With a credit score of 760, you might secure a 5.5% interest rate on a 30-year fixed mortgage.
With a credit score of 620, that rate might rise to 7.0% or higher.
Over the life of a $400,000 mortgage, that difference could mean paying tens of thousands more in interest.
How to Improve Your Credit Score Before Applying
If your credit score isn't where you'd like it to be, here are some steps you can take:
Pay bills on time – Late payments hurt your score the most.
Reduce credit card balances – Aim to keep usage below 30%.
Avoid new credit inquiries – Too many hard pulls can lower your score.
Check your credit report – Dispute any errors with the credit bureaus.
Keep old accounts open – The length of your credit history matters.
Final Thoughts
Your credit score plays a huge role in determining the success of your mortgage application and the interest rate you’ll pay. By taking the time to understand and improve your credit score, you can save yourself thousands of dollars and open the door to better home financing options.
Whether you're just starting to think about buying a home or are getting ready to apply for a mortgage, make sure your credit score is working for you, not against you.
Need guidance on mortgage approval and how your credit impacts your options? 📞 Contact Arise Mortgage Corp. — we're here to help you navigate the mortgage process with confidence.
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