Is buying a home on your New Year's resolution list? You're not alone! The start of a new year is one of the most popular times to start thinking seriously about homeownership. Whether you're dreaming of hosting next year's holiday gathering in your own place or just ready to stop paying someone else's mortgage, there's no better time to figure out what you can actually afford.
If you've been asking yourself "how much house can I really afford?" over and over, the good news is there's actually a straightforward way to figure it out, and it starts with understanding something called DTI.
The Quick Answer
Your home budget comes down to something called your debt-to-income ratio, or DTI for short. Think of it as the percentage of your monthly income that goes toward debt payments. Lenders typically like to see your housing costs around 28% of your gross income, and your total monthly debts (including that new mortgage) around 36% to 43%.
But here's the thing—just because a lender says you qualify for a certain amount doesn't mean you should max it out. Your comfort level, savings goals, and lifestyle matter too.
A quick note: I'm a real estate expert, not a mortgage lender, so everything I'm sharing here is for educational purposes and to help you understand the basics. When you're ready to get pre-approved or want specific advice about your financial situation, I'm happy to connect you with trusted mortgage professionals who can give you the detailed guidance you need.
Understanding DTI (It's Easier Than It Sounds)
Front-End DTI
This is just your housing costs divided by your monthly income. Housing costs include your mortgage payment, property taxes, homeowners insurance, and HOA fees if your future home has them. Most lenders want this to be 28% or less.
Back-End DTI
This looks at your total debt picture—your future housing payment plus car loans, student loans, credit card minimums, and any other monthly debt payments. Lenders usually want this between 36% and 43%, though some loan programs are more flexible.
How Lenders Figure Out What You Can Afford
Lenders start with your gross monthly income (that's before taxes). Then they look at all your monthly debt obligations to make sure you fit within those DTI percentages.
Two other big factors come into play:
Your Down Payment
The more you put down, the smaller your loan and the lower your monthly payment. This improves your DTI and might even get you a better interest rate.
Your Interest Rate
Even a small difference in your rate can mean hundreds of dollars difference in your monthly payment. That's why it's worth shopping around.
Let's Walk Through the Numbers
Here's how to estimate what you can actually afford:
Start with your gross monthly income
Add up your salary, any bonuses you reliably receive, and other income that counts toward a mortgage. Use your pre-tax income here.
List out all your monthly debt payments
Write down the minimum payments for student loans, car payments, credit cards, and personal loans. Include things like child support or alimony if applicable.
Calculate your front-end limit
Take your gross monthly income and multiply it by 0.28. That number is roughly what you should aim to spend on housing costs each month.
Calculate your back-end limit
Multiply your gross monthly income by 0.36. This is what all your debts combined (including your future mortgage) should stay under.
Work backwards to a home price
Use an online mortgage calculator to figure out what loan amount gives you a monthly payment within those limits. Don't forget to factor in property taxes, insurance, and your down payment. Once you know your target loan amount, add your down payment to get your home price range.
Real-World Examples
The Stable Income Buyer
Let's say you make $6,000 a month before taxes and have $1,000 in other monthly debt payments. Your housing payment should probably be around $1,500 to $1,700 a month (depending on local property taxes and insurance rates). This keeps you within healthy DTI ranges and leaves room for savings and surprises.
The First-Time Buyer
If you're putting down less than 20%, you'll probably need to pay for mortgage insurance, which adds to your monthly costs. You might also face stricter DTI requirements. Saving up a bigger down payment can really help here.
The Conservative Approach
If interest rates are high or you value financial flexibility, consider aiming for 25% instead of 28% on your front-end DTI. It's better to have breathing room in your budget than to feel house-poor.
Ways to Boost Your Buying Power
Pay down existing debt
Knocking out high-interest debt before you buy doesn't just improve your DTI—it frees up money for your monthly mortgage payment.
Save a bigger down payment
More money down means a smaller loan, lower monthly payments, and sometimes you can skip private mortgage insurance altogether.
Explore different loan programs
FHA, VA, USDA, and conventional loans all have different rules and DTI flexibility. I can help you figure out which program works best for your situation.
Don't Make These Common Mistakes
Borrowing the maximum amount
Just because you're approved for a certain amount doesn't mean you should spend it all. Build in a cushion for the unexpected.
Forgetting about ongoing costs
Your mortgage payment is just the start. Property taxes, insurance, maintenance, repairs, utilities, and HOA fees add up fast. Plan for these from day one.
Not thinking ahead
Life changes. Maybe you'll want to start a family, change careers, or deal with an unexpected expense. Buy a home that fits your budget even if things don't go exactly as planned.
The Bottom Line
The best home budget is one that lets you sleep at night. Use those 28% and 36% guidelines as your starting point, run the numbers with a mortgage calculator, and be honest with yourself about what monthly payment feels comfortable.
As we head into 2026, why not make this the year you stop wondering "what if" and start taking real steps toward homeownership? Understanding your DTI is the perfect first step. Remember to factor in your down payment, current interest rates, and all those ongoing homeownership costs. But DTI is only part of the story—your credit score also plays a huge role in what you'll qualify for and what interest rate you'll get. Check out my next post where I break down everything you need to know about credit scores and home buying.
Ready to get pre-approved? While I can help you understand the home buying process and find the perfect property, you'll want to work with a qualified mortgage professional for the financing piece. I work with excellent lenders who can walk you through your options and get you pre-approved. Just reach out and I'll make the connection.
Here's to making 2026 the year you get the keys to your own place. Buying a home is exciting—let's make sure it's financially comfortable too.
