Optimize Credit Score for Mortgage Pre-Approval
September 18, 2025
9 minutes
Thinking about buying your first home? Then your credit and debt situation is the first thing to get right. Lenders will judge your financial health long before they approve you for a mortgage. That means the way you handle credit, debt, and payments has a direct impact on the interest rate you receive and whether you qualify at all.
Here’s what every aspiring home buyer should know.
1. Your Credit Score Matters Most
Your credit score is the first number lenders check. It signals how likely you are to repay.
- Scores of 720 and above get the best interest rates.
- Scores of 670 and higher are considered good.
- Conventional loans usually require at least 620.
- Below 620, you’ll need to look at government-backed loans.
Why this matters
The difference in your score equals real money. For example:
- A $200,000 loan with a high score (760–850) could save you about $70,000 in interest over 30 years compared to a lower score (620–639).
- A $300,000 loan at those same ranges could save you over $91,000.
Options if your score is lower
- FHA loans: As low as 580 with 3.5% down.
- VA loans: For active or veteran military, often with flexible credit requirements.
- USDA loans: For buyers in rural areas, typically starting around 640.
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2. Keep Your Credit Utilization Ratio Low
This is how much of your available credit you’re using. Lenders want it under 30%.
Example:
- $7,500 in card balances
- $23,000 in total credit limits
- CUR = 32.6% (too high)
How to improve it
- Pay down balances quickly.
- Ask for higher limits but avoid extra spending.
- Do not close old cards since they help expand your available credit.
3. Watch Your Debt-to-Income Ratio (DTI)
Lenders compare what you owe each month to your gross income. They want to see balance.
- Front-end DTI: Mortgage payment only, ideally under 28%.
- Back-end DTI: Mortgage plus all debts, usually under 36%.
Tip: Conventional loans often deny applications above 50%. VA and USDA loans usually cap at 41%.
How to lower your DTI
- Pay off debts with small balances (snowball method).
- Tackle high-interest debts first (avalanche method).
- Increase income with side work or a raise.
- Keep spending under control.
Save up to 1.5% at closing when you buy
Save up to 1.5% at closing when you combine real estate and mortgage services with reAlpha.

4. Check Your Credit Reports for Errors
Your credit report feeds your score. Mistakes can cost you a loan or push your rate higher.
You’re entitled to free weekly checks at AnnualCreditReport.com. Review all three bureaus: Experian, Equifax, TransUnion.
Look for:
- Wrong personal details
- Duplicate accounts
- Closed accounts showing as open
- Missed payments listed in error
- Accounts tied to ex-partners or identity theft
Dispute errors right away. Credit bureaus have 30 days to investigate.
5. Manage Credit Strategically Before Applying
Every move matters in the months before you apply for a mortgage.
- Pay every bill on time.
- Keep balances low.
- Do not open new credit accounts.
- Avoid closing old accounts.
- Reduce overall debt to improve both DTI and credit score.
- Hold steady employment. Lenders prefer consistent work history.
- Save for your down payment. A larger down payment makes your file stronger.
Key Takeaways for Aspiring Buyers
- Your credit score directly affects your loan cost. Aim for 720 or higher.
- Keep your credit utilization below 30%.
- DTI should stay under 36% for the best approval odds.
- Check your credit reports for mistakes.
- Manage debt and avoid new accounts before applying.
- Give yourself enough time to see progress.
Final Thought
Buying a home is more than saving for a down payment. Your credit and debt choices shape your mortgage terms and long-term costs. Start with one action today-paying down a card, checking your report, or setting up automatic payments.
What’s the next financial step you’ll take to prepare for your first home?
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Article by
Rocky Billore is a mortgage industry leader and Chief Sales Officer with over two decades of experience across residential and commercial lending. Since entering the industry in 2004, he has been directly involved in funding more than $1.4 billion in loans. A recognized expert in VA and government lending, Rocky combines deep program knowledge with a data driven, relationship-first leadership style. His work focuses on building scalable sales organizations, developing high performing teams, and aligning technology with real world lending outcomes to improve the homeownership experience.