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Your Credit Score Isn’t the Whole Story: What Actually Determines Your Mortgage Approval

Writer: Chrissy Peterson
Chrissy Peterson
Sep 29
6 min read

“My credit score is ___… can I buy a house?”

It’s one of the most common questions buyers ask me.

And my answer is usually: Your credit score matters, but it’s only one piece of the puzzle.

When you apply for a mortgage, lenders look at much more than a three-digit number. They’re evaluating your overall financial picture and your ability to comfortably repay the loan.

So before you decide your credit is “too low,” assume you're automatically approved because your score is high, or put off buying because an app gave you a number you weren't expecting, let's talk about what lenders actually consider.

1. Your Credit Score

Let's start with the obvious one.

Yes, your credit score is important. It can affect whether you qualify for certain mortgage programs as well as the interest rate and loan terms you're offered.

But here's something many buyers don't realize:

You don't have just one credit score.

Different scoring models can produce different scores, and lenders may use different models depending on the type of credit you're applying for. That's why the number you see through a free credit-monitoring service, credit card app, or other online tool may not match the score your mortgage lender sees.

The Consumer Financial Protection Bureau explains that mortgage lenders commonly use credit scores and information from your credit reports when evaluating a loan application, and the score you see as a consumer can differ from the one used for a mortgage.

So if your mortgage lender pulls your credit and says your score is different from the one on your phone, that doesn't necessarily mean something is wrong.

2. Your Credit History

Your lender isn't only interested in your score.

They're also looking at the story behind it.

That can include things such as your payment history, outstanding debt, credit utilization, recent applications for credit, collections, and other information appearing on your credit reports.

A credit score essentially summarizes information from your credit history, but lenders can evaluate the underlying information as part of the mortgage process.

That's also why I encourage buyers to avoid making major credit changes once they're preparing to purchase a home.

That new car, furniture financing or credit card can wait.

Always talk with your lender before opening new credit, closing accounts, financing a large purchase or making another significant financial move while you're buying a home.

3. Your Income

A great credit score doesn't automatically mean you can qualify for any home price you want.

Your lender needs to determine whether you have enough reliable, qualifying income to support the mortgage payment and your other financial obligations.

Depending on your situation, they'll review and document the income being used to qualify you.

If you're self-employed, earn commissions, receive bonuses, work multiple jobs or have variable income, the process can look different than it does for someone earning a straightforward salary.

That's why getting connected with a knowledgeable lender before you start seriously shopping can save a lot of frustration later.

4. Your Debt-to-Income Ratio

Here's a term you'll hear frequently during the mortgage process:

DTI — debt-to-income ratio.

In simple terms, your DTI compares your qualifying monthly debt obligations — including the proposed housing payment — with the qualifying monthly income used for your mortgage application.

For example, car payments, student loans, credit cards and other debts can affect how much home you qualify to purchase.

This is one reason two buyers earning the exact same salary could qualify for very different mortgage amounts.

One may have very little monthly debt, while the other has significant car, student loan and credit card payments.

Income matters, but so does how much of that income is already committed elsewhere.

5. Your Employment and Income Stability

Lenders also want to know that the income being used to qualify is reliable.

That doesn't mean you necessarily need to have worked for the same employer forever.

For example, Fannie Mae's current guidelines call for lenders to evaluate employment history to determine whether it reflects a reliable pattern of employment, while also allowing certain situations with shorter employment histories to be considered.

Job changes, gaps in employment, variable income and self-employment don't automatically mean you can't get a mortgage.

They may simply require additional documentation or a closer look from your lender.

This is another reason I tell buyers:

Don't assume you won't qualify. Talk to a lender and let them evaluate your actual situation.

6. Your Assets and Savings

Your lender may also look at the money and other eligible assets you have available.

Why?

Because buying a home involves more than making the monthly mortgage payment.

Depending on your loan and transaction, you'll potentially need funds for your down payment, closing costs and other expenses associated with purchasing the home.

Your lender may also evaluate reserves — money remaining after closing — depending on your loan circumstances.

Having savings can help demonstrate that you're financially prepared for homeownership.

And from my perspective as your REALTOR®, I want you to think beyond simply getting approved.

I want you to be comfortable after you get the keys, too.

Owning a home comes with repairs, maintenance and unexpected expenses. Draining every dollar from your savings just to get into a home isn't always the best strategy.

7. Your Down Payment

Here's another misconception I hear:

“I need 20% down to buy a house.”

Not necessarily.

There are mortgage programs that allow qualified buyers to purchase with significantly less than 20% down, and some eligible borrowers may qualify for programs with little or even no down payment.

Your options depend on the loan program, property, financial profile and other eligibility requirements.

And putting the largest possible amount down isn't automatically the right decision for everyone.

Sometimes keeping additional cash available for reserves, repairs or other goals may be important.

That's a conversation to have with your lender based on your entire financial picture.

Why Your Online Credit Score May Be Different

This deserves its own section because it surprises so many buyers.

You check your credit through an app and see 740.

Then your mortgage lender pulls your credit and tells you they're working with a different number.

What happened?

Probably nothing unusual.

According to the CFPB, consumers can have multiple credit scores because different scoring formulas, credit-reporting sources, loan types and even the timing of the calculation can produce different results.

In other words:

The score you see online isn't necessarily the score a mortgage lender will use.

That's why I don't recommend using an online credit score alone to decide whether you're ready to purchase a home.

Don't Let a Number Stop You From Having the Conversation

This may be the most important part.

I've talked with buyers who assumed they couldn't purchase because their credit wasn't “perfect.”

I've also seen people wait because they thought they needed significantly more money saved before they could even start the conversation.

You don't need to diagnose your own mortgage qualifications.

That's what a good lender is there to help you do.

Maybe you're ready right now.

Maybe there are a few things you should work on first.

Maybe paying down a particular debt could improve your buying power.

Maybe waiting several months is the smartest choice.

Whatever the answer is, I'd rather help you create a plan based on real information than have you spend another year sitting on the sidelines because of an assumption.

One More Tip Before You Buy

Once you're preparing for a mortgage, try to keep your finances as consistent as possible.

Before making a significant financial change, talk with your lender.

That includes things like:

  • Financing a vehicle

  • Opening a new credit card

  • Making a large financed purchase

  • Changing jobs

  • Moving significant amounts of money between accounts

  • Closing credit accounts

  • Co-signing a loan for someone else

Even something that seems completely unrelated to buying your home can potentially affect your mortgage qualification.

When in doubt, ask before you act.

The Bottom Line

Your credit score matters when you're applying for a mortgage — but it isn't your entire mortgage application.

Your lender may also evaluate your income, employment, existing debts, debt-to-income ratio, credit history, assets, down payment and other financial information.

So instead of asking:

“Is my credit score good enough to buy a house?”

A better question might be:

“What does my complete financial picture look like, and what are my options?”

If you're thinking about buying a home in Minnesota — whether that's next month, six months from now or sometime next year — you don't have to have everything figured out before reaching out.

We can start with a conversation, connect you with a trusted lender, and find out exactly where you stand.

If you're ready now, great. We'll build a plan.

If you're not quite there yet, that's okay too. We'll figure out what needs to happen next.

Because getting ready to buy a home doesn't start with scrolling through listings. It starts with understanding your numbers and having a plan. #mnrealtor #minnesotarealtor #mnrealty #mnrealestate #ChrissyJHomes


Chrissy J Homes Team


 
 
 

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