Can I Buy a House With Student Loan Debt?

Last updated: August 2, 2026

Short Answer: Yes — But It Comes Down to One Key Number

Student loan debt doesn’t automatically disqualify you from buying a home. But it does factor directly into what you can qualify for, and understanding exactly how lenders treat it can change your entire strategy. Here’s everything you need to know before you apply.

It’s All About Debt-to-Income Ratio (DTI)

When a lender evaluates your mortgage application, one of the first things they calculate is your debt-to-income ratio — your total monthly debt payments divided by your gross monthly income. Student loans count as part of that total debt, right alongside car payments, credit cards, and any other monthly obligations.

Most conventional loan programs want your total DTI at or below 43–45%. FHA loans can sometimes go higher, up to 50% with strong compensating factors like a higher credit score or larger down payment. VA loans have more flexibility still if you qualify.

The key: your student loan payment is just one piece of that DTI puzzle. If your income is strong enough or your other debts are low, student loans often don’t prevent you from qualifying at all.

How Lenders Actually Count Your Student Loan Payment

This is where most buyers get tripped up, because the rules are not the same across all loan types.

Standard repayment plan: Lenders use your actual documented monthly payment. Straightforward.

Income-driven repayment (IDR) with a low payment: This is where it gets complicated. Some lenders use your actual low (or even $0) payment. Others — particularly on conventional loans — will calculate a “phantom payment” based on 0.5% to 1% of your total loan balance per month, regardless of what you actually pay. On $80,000 in student loans, that phantom payment could be $400–$800/month in their DTI calculation even if your real payment is $0.

Deferment or forbearance: Most lenders will not count this as zero. They’ll estimate a future payment based on your balance. Don’t assume deferment means your loans disappear from the calculation.

FHA vs. conventional: FHA loans currently use 0.5% of your outstanding balance if your payment is $0 or unknown. Conventional loans through Fannie Mae use your actual payment if it’s documented, or 1% of the balance if not. These differences can meaningfully change your qualifying picture, which is why shopping lenders matters.

Real Example: What This Looks Like in Practice

Say you have $60,000 in student loans on an income-driven repayment plan with a documented payment of $150/month, and you earn $75,000/year ($6,250/month gross).

Lender A uses your actual $150 payment. Your DTI might be 32% — well within range for approval.

Lender B uses 1% of your $60,000 balance = $600/month phantom payment. Your DTI suddenly jumps to 42% — still possible, but much tighter, and potentially affecting your loan terms.

Same borrower, same debt. Very different qualifying experience depending on which lender you talk to. This is exactly why getting multiple quotes matters.

What You Can Do to Strengthen Your Application

Document your actual payment. If you’re on an IDR plan, get your payment confirmation letter from your loan servicer before you apply. Lenders who allow actual payments need that documentation or they’ll default to the higher estimate.

Pay down higher-rate revolving debt first. Credit card balances directly impact both your DTI and your credit score. Reducing those can improve your qualifying picture even if your student loan balance stays the same.

Explore down payment assistance. In Houston, programs like the TSAHC Home Sweet Texas program and the Houston Homebuyer Assistance Program can cover part of your down payment, reducing how much cash you need upfront and making the whole picture more workable. See my full guide to down payment assistance in Houston.

Shop lenders, not just rates. Because student loan treatment varies by lender and loan program, the lender who gives you the best rate isn’t necessarily the one who gives you the best qualifying picture. Talk to a lender who has experience working with borrowers who have significant student debt.

Don’t apply for new credit before closing. Any new hard inquiry or new account in the months before your mortgage application can temporarily lower your credit score and complicate the process.

The Real Takeaway for Houston Buyers

Student loan debt is a factor, not a wall. I work with first-time buyers in Houston regularly who carry meaningful student loan balances and still qualify, often for more than they expected. The key is understanding exactly how your specific loans will be treated before you assume you can’t, and working with lenders who know how to structure the deal correctly.

Want to talk through your specific numbers? Contact me — I’m happy to connect you with Houston lenders who are experienced with student loan borrowers and can give you a realistic picture of what you can qualify for.