Mortgage rates have been bouncing around in the high-6% to low-7% range for months, and a lot of would-be buyers are discovering that the old "three times your salary" rule of thumb no longer gets them very far.
The number that actually decides whether a lender says yes or no is your debt-to-income ratio, and it has quietly become the single biggest hurdle in the homebuying process.
Your DTI is every monthly debt payment you owe, divided by your gross monthly income.
That includes your future mortgage payment, plus car loans, student loans, minimum credit card payments, and personal loans.
If you bring home $6,000 a month and owe $2,400 in total debt payments, your DTI is 40%.
Most conventional loans want that number at or below 43% to 45%, though some programs allow up to 50% with other compensating factors.
Cross those lines and you can be denied even with a great credit score and a solid down payment.
What trips people up is that lenders count the mortgage you're applying for, not the rent you pay now.
So a $1,900 rent payment can suddenly look like a $2,600 housing payment after taxes, insurance, and higher rates.
Add a $450 car note and $150 in card minimums, and a household earning $7,000 a month is already at 46% before anyone even talks about the down payment.
A few practical moves that actually help.
Paying off a small installment loan can drop your DTI by several points overnight, sometimes more than saving another $5,000 for a down payment would.
Avoid opening new credit cards or financing furniture before closing, since a fresh inquiry and a new minimum payment can sink an approval that was already tight.
If you carry balances on multiple cards, paying them down rather than just moving them around lowers the minimum payments lenders calculate, which is what counts.
And if you're self-employed or have variable income, expect underwriters to average your last two years of returns, which often lands lower than what you feel you earn.
One more thing worth knowing: DTI is calculated on gross income, before taxes and 401(k) contributions come out.
That's good news, but it also means a raise that pushes you into a higher bracket doesn't hurt your ratio the way people sometimes fear.
Renters hoping to buy in 2026 should run their own numbers before talking to a lender.
Add up every minimum payment, divide by gross monthly pay, and see where you land.
If you're above 40%, start chipping at the smallest debts first.
The honest takeaway is that affordability today is less about the sticker price of a house and more about the monthly obligations you're already carrying.
Final Thoughts
Buyers who clean up their debt load often qualify for more house than they expect, and they do it without a bigger down payment.