How Much House Can I Afford? A Guide to Home Buying Confidence

Buying a home is exciting - but figuring out how much house you can afford? That part can feel overwhelming. Don’t worry, at Summit Credit Union, we’ve got your back! Our goal is to help you feel more confident and in control of your finances, especially when it comes to big life decisions.

Let’s walk through the basics so you can feel empowered to take the next step.

First Things First: Budgeting for Your Home

Before you dive into scrolling through dream homes online and imagining your future space, it’s important to pause, take a deep breath, and reflect on your current financial situation.

Here are 3 important factors to consider when determining your budget for how much house you can afford:

Your Income - This includes your salary and any other regular income you receive.
Your Debts - Think credit cards, car loans, student loans - anything you’re making monthly payments on.
Your Down Payment - The more you can put down upfront, the less you’ll need to borrow - and the more affordable your monthly payments will be.

Once you’ve gathered these numbers, you can start building a budget that includes:

Estimated monthly mortgage payment (including taxes and insurance)
Utilities and maintenance costs
Savings goals (like emergency funds or future upgrades)
Lifestyle expenses (groceries, transportation, entertainment)

With a clear budget in place, you’re not just dreaming, you’re preparing to turn your goals into reality. Budgeting early helps you shop with confidence, avoid surprises, and stay focused on what’s truly affordable.

What Is DTI (Debt-to-Income Ratio)?

Now that you’ve outlined your budget and debts, it’s time to calculate your DTI. Your DTI is a big deal when it comes to home loans. DTI stands for Debt-to-Income ratio, which is a way lenders measure what percentage of your income goes toward debt each month.

Here’s how to calculate it:

DTI = (Monthly Debt Payments ÷ Gross Monthly Income) × 100

Most lenders like to see a DTI of 43% or lower - but the lower, the better.

Want to take control and see what’s possible? Use our to get a fast estimate of how much home you can confidently afford.

What’s a Good Home Debt Percentage?

While DTI looks at a broader picture of your debt, your home debt percentage focuses on your mortgage payment (including taxes and insurance). A good rule of thumb? Try to keep your home debt percentage around 28% or less of your gross monthly income.

Why does this matter? By keeping your housing costs within this range, you’ll create room in your budget for other goals - like saving, traveling, or treating yourself to something fun.

What Is Loan-to-Income?

Another helpful metric in your home-buying journey is your Loan-to-Income (LTI), also referred to as your Housing Ratio. LTI is another way to look at affordability, because it compares the total amount of your to your annual income. Lenders use this to make sure you’re not borrowing more than you can reasonably pay back.

A lower LTI means a healthier financial picture. And a healthier financial picture? That means you’re not just buying a house-you’re building a foundation for less financial stress and more financial confidence.

Ready to Find Your Magic Number?

At Summit, we make your home-buying process simple, because your goals deserve real progress. Try using our quick and effortless to see how much house you can truly afford based on your income, debts and down payment. Clarity and confidence start here.

And if you’re ready to take the next step, check out these helpful resources:

Buying a home is a big deal - but you don’t have to do it alone. At Summit Credit Union, we’re here to help you every step of the way. Whether you’re just starting to explore or ready to apply, we’ll help you feel confident, informed, and totally in control.