Mortgage rates have been bouncing around in the mid-6% range for a 30-year fixed loan, and plenty of buyers are watching those numbers like a hawk.
But here's the thing nobody puts on a billboard: the rate isn't the only number that can sink a home loan application.
Your debt-to-income ratio, or DTI, might matter even more.
Add up your monthly debt payments — car loans, student loans, minimum credit card payments, personal loans — and divide that by your gross monthly income.
If you bring in $6,000 a month and owe $2,400 in total debt payments, your DTI is 40%.
That single percentage can make the difference between a mortgage approval and a rejection letter.
Most conventional lenders prefer a DTI at or below 36%, though some will stretch to 43% or even 50% depending on your credit score, savings, and the type of loan.
FHA loans have historically allowed higher ratios, but they come with their own trade-offs like mortgage insurance premiums.
Go too far above the line, and underwriters start asking uncomfortable questions.
Here's where it gets tricky for everyday households.
Credit card minimums count against you, and with the average APR sitting above 20%, even a modest balance can drag your ratio upward fast.
A $5,000 card balance with a 2% minimum payment adds $100 a month to your DTI — enough to knock some buyers out of contention.
Student loan payments count too, even if they're on an income-driven plan.
Paying down revolving debt is the fastest lever, because it lowers both your balance and your minimum payment.
Avoid financing a new car or taking on fresh loans in the six months before you apply.
And if you get a raise, document it — a higher income shrinks your ratio without you paying off a dime.
Some buyers also use a strategy called "paying down to qualify." If you're sitting at 45% DTI and need to hit 43%, a loan officer can tell you exactly how much debt to eliminate.
Sometimes it's a few thousand dollars on one card.
That's often cheaper than waiting a year for rates or prices to shift.
One more warning: don't assume pre-approval means final approval.
Lenders recheck your finances before closing, and a new financed couch or a co-signed loan for a relative can blow up the deal at the worst possible moment.
Keep your credit profile frozen in place until the keys are in your hand.
Your DTI isn't a number you check once — it's a running score that changes with every balance and every payment.
Knowing where you stand before you house-hunt beats finding out at the underwriter's desk.
Pull your credit report, add up the minimums, and do the math early.
Final Thoughts
That ten-minute exercise can save you months of frustration and possibly tens of thousands in a worse loan.