How to improve your debt-to-income ratio for mortgage approval

Written by Samantha SheltonNMLS 1647301Updated October 2026

You improve your debt-to-income ratio two ways: shrink the monthly payments a lender counts, or raise the income you can document. Clearing a $400 car payment on a $5,000 monthly income drops your ratio 8 percentage points on the spot, which is usually more leverage than chipping away at a large balance.¹ The ceiling most conventional borrowers are aiming under is 50%, the maximum debt-to-income ratio Fannie Mae allows on loan casefiles underwritten through Desktop Underwriter.

Couple planning a debt payoff strategy at home to improve their debt-to-income ratio before a mortgage application

The 43% figure quoted all over the internet is not a current federal limit. The CFPB removed the 43% DTI cap from the General Qualified Mortgage definition and replaced it with price-based thresholds, effective March 1, 2021 and mandatory for applications received on or after October 1, 2022. Your real limit comes from the automated underwriting decision on your file, plus whatever your lender layers on top of it.

Learn which payments actually move your ratio, which ones an underwriter can leave out entirely, and how loan structure fixes a ratio that payoff can’t fix in time. If you’re earlier in the process, start with our Mortgage Basics guide.

Key takeaways:

Payments count, balances don’t: Retiring a $400 car loan moves a borrower earning $5,000 a month by 8 percentage points, while wiping out a $4,000 credit card balance carrying a $90 minimum moves that same borrower 1.8 points.
Know the ceiling you’re aiming under: Fannie Mae allows up to 50% on loans underwritten through Desktop Underwriter and 36% on manually underwritten loans, stretching to 45% for borrowers who meet the credit score and reserve requirements in its Eligibility Matrix.
Structure can beat payoff: A larger down payment, a longer term, a permanent rate buydown or a different loan program can move a ratio in days, which matters when your closing date is 30 days out.

What counts in your debt-to-income ratio?

Your debt-to-income ratio is every monthly debt payment divided by your gross monthly income, before taxes. The CFPB’s example: $1,500 for a mortgage, $100 for an auto loan and $400 for the rest of your debts is $2,000 in monthly debt payments, and against $6,000 of gross monthly income that’s a 33% ratio. Our breakdown of how the DTI formula works line by line covers front-end versus back-end; this article is about moving the number.

Two details drive every strategy below. Lenders count the required monthly payment, not the balance. And they only count income you can document. Read the CFPB’s page on how lenders define debt-to-income ratio before you build a payoff plan around the wrong debt.

Counted: Your new housing payment, auto loans and leases, student loans, personal loans, credit card minimums, timeshares, court-ordered obligations like child support, and any loan you co-signed.
Not counted: Utilities, groceries, cell phone, health insurance, day care and subscriptions. They shape your budget and never touch your ratio.

What DTI do mortgage lenders actually require?

There is no single federal number anymore, and the working ceiling on most conventional files is 50%. Here’s what each rulebook holds you to.

Conventional, automated: Fannie Mae’s maximum allowable DTI ratio is 50% for loan casefiles underwritten through Desktop Underwriter. The approval still comes from the whole file, so 49% with thin credit and no reserves can come back a refer.
Conventional, manual: Fannie Mae’s maximum total DTI for manually underwritten loans is 36% of stable monthly income, and that maximum can be exceeded up to 45% when the borrower meets the credit score and reserve requirements reflected in the Eligibility Matrix.
FHA, manual: HUD’s matrix caps manually underwritten FHA loans at 31/43 with no compensating factors. One documented compensating factor allows 37/47 and two allow 40/50. Borrowers with a decision credit score below 580, or no score at all, may not exceed 31/43.²
Lender overlays: Two lenders can work the same program from the same guidelines and stop at different ratios, which is why one file gets three different answers on the same afternoon.

The 43% number has a real history: it was the DTI ceiling inside the General Qualified Mortgage definition until the CFPB replaced it with price-based thresholds. Quoting it as today’s rule sends borrowers into payoff plans they never needed. What matters is the decision your file gets in mortgage underwriting, and the credit and reserve strength behind it. Our Credit & Qualifying hub covers the rest, and a stronger credit score is frequently what buys the higher ratio.

How to lower the payments lenders count

At $5,000 of gross monthly income, every $100 of monthly payment you remove is worth 2 percentage points of DTI. That arithmetic is why the three moves below beat almost anything else in 30 days.

1. Retire a payment, not a balance

Target the debt with the biggest payment relative to its balance, not the biggest balance. A $4,000 credit card with a $90 minimum and a $4,000 car loan with a $400 payment cost the same to wipe out, and at $5,000 of monthly income they’re worth 1.8 and 8 percentage points of DTI. The car loan buys more than four times the relief for identical cash.

Near-final installment loans are the best value of all, because you may not have to pay them off at all. Fannie Mae requires installment debt to be counted when more than ten monthly payments remain, so a loan with 10 or fewer payments left can often be left out entirely. It isn’t automatic: the guide still asks the lender to count a short-term debt when the payment significantly affects your ability to meet your credit obligations. FHA is tighter. Closed-end debts don’t have to be included if they’ll be paid off within 10 months from the date of closing and the cumulative payments of all such debts are 5% or less of your gross monthly income, and you may not pay a balance down to meet the 10-month requirement.

So ask your loan officer what your file already excludes before you spend anything. Draining savings to erase a debt an underwriter was going to ignore costs you reserves, and reserves are one of the things that buy a higher allowable ratio.

2. Restructure the payments you can’t retire

Refinancing a payment down works on your ratio the same way paying it off does, just partially. Stretching a $520 auto payment to $380 removes 2.8 points at $5,000 of monthly income without touching your savings. You’ll usually pay more total interest, but a 30-day fix is a 30-day fix.

One caution: new credit applications while your mortgage file is open create inquiries your underwriter has to chase, and on FHA files the lender must review all credit report inquiries and make sure any resulting payment is in the ratio. If the debt itself is the problem rather than the payment, nonprofit credit counseling through the NFCC is a better first call than another loan.

3. Remove debts that aren’t really yours

Pull all three credit reports before you apply, not after. You’re entitled to your free official credit reports from Equifax, Experian and TransUnion every week, a schedule the bureaus made permanent in 2023. Errors, duplicate tradelines and closed accounts still reporting a payment inflate your ratio exactly like real debt.

Authorized-user accounts are the common one. On an FHA file, an account you’re only an authorized user on must be included in your DTI unless the lender can document that the primary account holder made all required payments on it for the previous 12 months. Sitting on a relative’s card can cost you a full card payment’s worth of ratio. A co-signed loan works the same way: if you’re obligated, it counts. A cleaner report also protects the credit score the rest of your approval rests on.

How to raise or restructure instead of paying off

When your closing date arrives before your payoff date, the fastest points come from income and from the loan itself. These four moves can change a ratio inside a week without a single debt disappearing.

4. Add income you can document

Only documented income counts, and a raise counts the moment you have a pay stub showing it. Lifting gross monthly income from $5,000 to $5,500 against $2,400 of obligations takes a 48% ratio to 43.6% without paying off a dollar. Lenders in Align’s network generally want a track record behind variable income, often two years for a second job, bonus or overtime, so the side gig you started last month won’t help this file, though it will help the next one. Cash that never reached a tax return doesn’t count at all. What income qualifies, and how it gets averaged, is settled in mortgage underwriting.

5. Put more money down

A bigger down payment shrinks the loan, and a smaller loan means a smaller principal-and-interest payment inside your housing expense. It’s the only move here that improves your front-end and back-end ratios at once. Reaching 20% down on a conventional loan also keeps monthly mortgage insurance out of the payment entirely, often worth more ratio than the principal reduction itself. If the cash isn’t there yet, how to save for a down payment covers the timelines and the assistance programs that shorten them.

Money that goes into the down payment, though, stops being reserves, and documented reserves are a compensating factor on manual FHA files and a lever in Fannie Mae’s Eligibility Matrix. Run that tradeoff before assuming more down is always better.

6. Buy the rate down permanently, not temporarily

Discount points lower your note rate, and a lower note rate is a lower qualifying payment, so a permanent buydown reduces the ratio your file is judged on. A temporary buydown doesn’t. Fannie Mae requires the lender to qualify the borrower based on the note rate without consideration of the bought-down rate, so a 2-1 buydown makes your first two years cheaper and does nothing for your approval math. Our guide to mortgage rate buydowns runs the break-even against putting the same cash down. Term length works from the other direction: a 30-year payment is lower than a 15-year payment on the same loan, which is why borrowers tight on ratio rarely qualify on a 15.

7. Change the loan program

The same debts produce different ratios under different rulebooks, and that’s the most underrated fix here. A student loan reporting a $0 payment is the clearest case. On an FHA file the lender must use 0.5% of the outstanding balance whenever the credit report shows a zero payment, which is $110 a month on a $22,000 balance. Under Fannie Mae’s guide, a lender may instead qualify you with a $0 payment when you’re on an income-driven plan and documentation verifies the actual payment is $0. That’s a lender option, not an automatic exclusion, and on the same debts it can be worth several points.

Ceilings cut the other way. A manually underwritten FHA file with two documented compensating factors can carry a 50% back-end ratio where a manually underwritten conventional loan stops at 45%. Which program wins depends on your file, not on a rule of thumb, and that’s the whole argument for running one scenario through several lenders.

How much is each move worth?

Here’s the arithmetic on one borrower: $5,000 in gross monthly income and $2,400 in monthly obligations including the new house payment, a 48% back-end ratio. Every $100 of payment removed is worth 2 percentage points.

Monthly payment removed	DTI points it removes	Back-end DTI, starting at 48%	What it changes
$90, a typical credit card minimum	1.8	46.2%	Little. Still needs a strong automated approval.
$200, a small personal loan	4.0	44.0%	Clears 45%, the manual-underwriting stretch maximum.
$400, a typical car payment	8.0	40.0%	Real room under the 50% Desktop Underwriter maximum.
$600, a car payment plus a card	12.0	36.0%	Meets Fannie Mae’s base manual-underwriting maximum.

Notice what the table never mentions: balances. That $90 row could sit on a $2,000 balance or a $9,000 one and the effect is identical. Six hundred dollars of payments retired takes this borrower from needing a generous automated approval to clearing Fannie Mae’s base manual maximum of 36%, which is where the familiar 28/36 rule of thumb comes from: housing at 28% of gross income, total debt at 36%.

How Align helps when credit is the question

Another lender's no is not always the final answer. Lenders add their own rules on top of the program's, and Samantha can take your file to a wholesale lender whose rules fit it.

If it is not time yet, she will say so and tell you what to work on first. It is also why local real estate agents bring her in for second opinions.

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FAQ: Improving your debt-to-income ratio

Here are answers to common questions about improving your debt-to-income ratio.

What is a good debt-to-income ratio for mortgage approval?

Under 36% is comfortable. Fannie Mae allows up to 50% through Desktop Underwriter and 36% on manually underwritten loans, stretching to 45% for borrowers who meet the credit score and reserve requirements in its Eligibility Matrix. FHA’s manual matrix reaches a 50% back-end ratio with two documented compensating factors. The 43% number still quoted everywhere is a legacy Qualified Mortgage threshold the CFPB replaced with a price-based test, mandatory for applications received on or after October 1, 2022. Our guide to the debt-to-income ratio shows how front-end and back-end are calculated.

How fast can you improve your debt-to-income ratio?

Faster than most people expect. Paying off an installment loan removes its full payment as soon as the payoff is documented, and a raise counts the moment you hold a pay stub reflecting it. Structural changes take effect immediately, because a bigger down payment, a longer term or a different program changes the payment your file is underwritten against. What takes months is waiting for a balance to shrink, which often doesn’t change your payment at all. See how the numbers get tested in mortgage underwriting.

Should I pay off a credit card or a car loan to lower DTI?

Compare payments, not balances. A $4,000 credit card balance with a $90 minimum lowers your ratio far less than a $4,000 car loan with a $400 payment. Underwriters can often leave out an installment loan with 10 or fewer monthly payments remaining, and on FHA files those excluded payments must also total 5% or less of your gross monthly income, with no paying a balance down to get there. Ask before you pay anything off, and never drain reserves to erase debt a lender would have overlooked. More qualifying levers live in Credit & Qualifying.

Can I get a mortgage with a high DTI?

Yes, with compensating factors. Documented cash reserves, a minimal increase over your current housing payment, residual income, and significant additional income not already counted are the four factors HUD’s matrix accepts on manual FHA files, and Fannie Mae’s Eligibility Matrix leans on credit score and reserves the same way. Overlays also differ from lender to lender on the identical program, which is where shopping several lenders changes the answer. A stronger credit score is usually the cheapest of those to build.

The bottom line on improving your debt-to-income ratio

You improve a debt-to-income ratio by removing monthly payments or adding documented income, and payments are where the leverage sits. Clearing a $400 car payment on $5,000 of monthly income is worth 8 percentage points; erasing a $4,000 credit card balance with a $90 minimum is worth 1.8. Aim under 50%, Fannie Mae’s maximum through Desktop Underwriter, and under 45% if your file will be underwritten manually. The 43% Qualified Mortgage limit hasn’t applied to new applications since October 1, 2022. And when the calendar is short, structure moves faster than payoff: more down, a longer term, a permanent buydown, a different program.

If you’re ready to find out which lender reads your ratio most favorably, talk to Align Lending. We’ll shop your scenario across our lender network and put the numbers in front of you side by side. Call 248-506-5727 or start online.

Footnotes:

1. Example figures in this article are hypothetical and for educational purposes only; they do not constitute an advertisement of credit terms or a rate quote under federal or state lending laws. Debt-to-income results depend on your actual income documentation, the payments reported on your credit report, your loan program and your lender’s requirements. Return to text.

2. Align Lending is not acting on behalf of or at the direction of FHA or HUD. FHA qualifying ratios, compensating factors and liability calculations are set by HUD in Single Family Housing Policy Handbook 4000.1 and are subject to change. Return to text.

Sources: debt-to-income ratio defined as all monthly debt payments divided by gross monthly income, and the $2,000-on-$6,000 example equal to 33%, Consumer Financial Protection Bureau, “What is a debt-to-income ratio?” Removal of the 43% DTI limit from the General QM loan definition and its replacement with price-based thresholds, effective March 1, 2021 with a mandatory compliance date of October 1, 2022, CFPB, Qualified Mortgage Definition Under the Truth in Lending Act (Regulation Z): General QM Loan Definition, and the subsequent delay of the mandatory compliance date. Maximum allowable DTI of 50% for loan casefiles underwritten through Desktop Underwriter, and a 36% maximum total DTI for manually underwritten loans that may be exceeded up to 45% when the borrower meets the credit score and reserve requirements in the Eligibility Matrix, Fannie Mae Selling Guide B3-6-02. Installment debt counted when more than ten monthly payments remain, the caveat for short-term debt that significantly affects the borrower’s ability to meet credit obligations, and the option to qualify a borrower with a documented $0 income-driven student loan payment, Fannie Mae Selling Guide B3-6-05. Installment loans paid off or paid down to 10 or fewer remaining monthly payments excluded from long-term debt, Fannie Mae Selling Guide B3-6-07. Qualification at the note rate without consideration of the bought-down rate on temporary buydowns, Fannie Mae Selling Guide B2-1.4-04. Manual FHA maximum qualifying ratios of 31/43, 37/47 with one compensating factor and 40/50 with two, and 31/43 for decision credit scores of 500 to 579 or no credit score, HUD Handbook 4000.1, II.A.5. Closed-end debts excluded only when paid off within 10 months of closing with cumulative payments of 5% or less of gross monthly income and no paydown to reach 10 months; authorized-user accounts included unless the primary account holder’s 12-month payment history is documented; review of all credit report inquiries for new debt; and student loans calculated at 0.5% of the outstanding balance when the credit report shows a zero payment, HUD Handbook 4000.1, II.A.4. Permanent weekly free credit reports from Equifax, Experian and TransUnion at AnnualCreditReport.com, Federal Trade Commission.

Freelance and self-employed income is averaged and documented differently from a salary, which changes both sides of the ratio. Read more on buying a home as a freelancer.

This article is for informational purposes only and is not intended to provide legal, financial, or tax advice. Underwriting guidelines, program ratios and agency requirements change and vary by lender, program and borrower; confirm your figures with your loan officer and consult a qualified professional about your situation. Figures shown are illustrative, are not a rate quote or an offer of credit, and are subject to change. Align Lending is an independent Michigan mortgage broker, NMLS #2041154.