Qualifying for a higher mortgage on a low income comes down to two things: stretching the income you already have as far as possible, and finding ways to add income that lenders will count. Mortgage lenders approve loan amounts based on your debt-to-income ratio (the percentage of your gross monthly income that goes toward debt payments), so every strategy here either increases the income side of that equation or reduces the debt side.
How Lenders Decide Your Maximum Loan
Your debt-to-income ratio, or DTI, is the single biggest factor controlling how much you can borrow. To calculate it, a lender adds up all your monthly debt obligations (car payments, student loans, credit cards, and the proposed mortgage payment including taxes and insurance) and divides that total by your gross monthly income. Most conventional loans cap your DTI at 43% to 45%. FHA loans also use 43% as the standard ceiling, but borrowers with a credit score of at least 580 and other strengths on their application can sometimes qualify with a DTI as high as 50%.
To see this in dollar terms: if you earn $4,000 a month before taxes and your lender allows a 43% DTI, your total monthly debt payments can’t exceed $1,720. If you’re already paying $300 on a car loan and $200 on student loans, only $1,220 is left for a mortgage payment, which limits how large a loan you can carry. Every strategy below works by shifting these numbers in your favor.
Add a Co-Borrower’s Income
One of the most direct ways to qualify for more is to apply with someone who earns additional income. A co-borrower’s earnings are added to yours when the lender calculates DTI, which can dramatically increase your borrowing power. This person doesn’t even have to live in the home. FHA loans allow a non-occupying co-borrower, though that person must take title to the property and be obligated on the loan.
HUD defines eligible non-occupying co-borrowers broadly. A parent, grandparent, sibling, child, spouse, domestic partner, in-law, aunt, uncle, or legally adopted or foster child all qualify as family members under FHA rules. The co-borrower (or co-signer) must be a U.S. citizen or have a principal residence in the United States. One important restriction: anyone with a financial interest in the transaction, like the seller, builder, or real estate agent, cannot serve as a co-borrower unless they’re a family member.
Keep in mind that a co-borrower’s debts count too. If your co-borrower carries heavy monthly payments of their own, the net benefit to your DTI may be smaller than expected.
Count All Your Income Sources
Many borrowers leave qualifying income on the table because they only think about their primary paycheck. Lenders can count a variety of income streams, as long as you can document them and show they’re likely to continue. Part-time or second-job earnings typically qualify if you’ve held the position for at least a year, and sometimes two years. Overtime, bonuses, and commission income usually need a two-year history to be averaged into your qualifying income.
Other sources lenders may accept include child support, alimony, Social Security benefits, disability income, VA benefits, pension payments, rental income from an investment property, and even boarder income (rent from someone living in your home). Fannie Mae’s HomeReady program specifically allows boarder income and rental income from an accessory dwelling unit to be used in qualifying, which can make a meaningful difference for low-income borrowers.
If you’re self-employed or do freelance work, lenders will typically look at two years of tax returns and average your net income. Keeping clean books and avoiding aggressive write-offs in the years before applying can help your reported income better reflect what you actually earn.
Use Low-Income Mortgage Programs
Several loan products are designed specifically for buyers who earn less than the median income in their area, and they offer more flexible qualifying standards.
Fannie Mae’s HomeReady mortgage is available to borrowers earning at or below the area median income for the property’s location. It requires as little as 3% down and offers qualifying flexibility that standard conventional loans don’t, including the ability to use non-occupant borrower income and on-time rent payment history as evidence of creditworthiness. Very low-income first-time homebuyers may also receive a $2,500 credit toward their down payment or closing costs on loans purchased through early 2027.
Freddie Mac’s Home Possible program works similarly, targeting borrowers at or below 80% of area median income with 3% minimum down payments and flexible income sourcing. Both programs use private mortgage insurance rates that are lower than what you’d pay on a standard low-down-payment conventional loan, which reduces your monthly payment and effectively lets you qualify for a slightly higher loan amount.
FHA loans remain a strong option for low-income buyers because they accept credit scores as low as 580 with 3.5% down, and their DTI limits can stretch to 50% with compensating factors like significant cash reserves or minimal payment shock compared to your current housing cost.
Pay Down Existing Debt First
Because DTI is a ratio, reducing the debt side has the same mathematical effect as increasing income. Paying off a $300 monthly car payment frees up $300 toward a mortgage payment, which could translate to roughly $50,000 to $60,000 in additional borrowing capacity depending on your interest rate.
Prioritize debts with the highest monthly payment relative to their balance. A credit card with a $2,000 balance might only carry a $50 minimum payment, while a personal loan with a $3,000 balance might require $150 a month. Eliminating the personal loan gives you three times more DTI room per dollar spent. If a loan will be paid off within 10 months, some lenders won’t count it against your DTI at all, so check with your loan officer before making payoff decisions.
Lower the Monthly Payment With Buydowns
If your income supports a certain monthly payment but not quite enough to reach the home price you need, a rate buydown can close the gap. There are two types: temporary and permanent.
A temporary buydown, like a 2-1 buydown, reduces your interest rate by 2 percentage points in the first year and 1 point in the second year before settling at the full rate in year three. The seller or builder typically funds this by depositing the difference into an escrow account. Since lenders usually qualify you at the full note rate, a temporary buydown won’t directly increase your approved loan amount, but it does lower your payments during the early years when cash flow is tightest.
A permanent buydown uses discount points (prepaid interest) to reduce your rate for the entire life of the loan. One point costs 1% of the loan amount and typically lowers your rate by about 0.25%. If a seller agrees to contribute toward points, or if you can use gift funds to buy them, the lower rate reduces your monthly payment permanently. Because the lender qualifies you at this lower rate, a permanent buydown can increase the loan amount you’re approved for.
Tap Down Payment Assistance
A larger down payment doesn’t directly raise your approved loan amount, but it does reduce how much you need to borrow and can eliminate or reduce mortgage insurance costs, which lowers your monthly payment and frees up DTI room. If saving for a down payment is the barrier, down payment assistance programs offered by state, county, and city governments can help.
These programs come in several forms. Grants are free money you never repay. Forgivable loans act like grants if you stay in the home and keep your mortgage current for a set period, typically three to ten years, after which the balance is forgiven. Deferred-payment loans require no monthly payments and come due only when you sell, refinance, or pay off the mortgage. Some programs also cover closing costs, which keeps more of your cash available for reserves.
Eligibility varies by location but usually targets first-time buyers (or anyone who hasn’t owned a home in three years) earning below a certain income threshold. Your lender or your state’s housing finance agency can point you to programs available in your area.
Choose a Longer Loan Term
A 30-year mortgage produces a lower monthly payment than a 15-year or 20-year loan for the same amount borrowed. If you’re on the edge of qualifying, simply choosing the longest available term can push you over the threshold. You’ll pay more in total interest over the life of the loan, but you’ll qualify for a higher principal balance today because the monthly payment stays within your DTI limit.
Improve Your Credit Score
Your credit score doesn’t change how much income you have, but it directly affects the interest rate a lender offers you. A lower rate means a lower monthly payment for the same loan amount, which means more of your DTI capacity goes toward principal rather than interest. Even a modest improvement, from 660 to 700 for example, can shave enough off your rate to add thousands to your approved loan amount.
Quick wins include paying down credit card balances below 30% of their limits (below 10% is even better), correcting errors on your credit report, and avoiding new credit applications in the months before you apply for a mortgage. If your score is below 620, bringing it up also opens the door to conventional loan programs with better terms than FHA, which can further stretch your buying power.