Debt-to-Income Ratio for a Mortgage in Clackamas County

The short answer: Your debt-to-income ratio for a mortgage is every monthly debt payment, including the new house payment, divided by your gross monthly income. Most programs work comfortably in the low to mid 40s, and some go higher with a strong file. Retiring one small payment often does more for your approval than months of saving.

What Is a Debt-to-Income Ratio for a Mortgage?

A debt-to-income ratio for a mortgage is a simple fraction. On the bottom sits your gross monthly income, meaning what you earn before taxes come out. On top sit your required monthly debt payments plus the housing payment on the home you want.

The Consumer Financial Protection Bureau defines it the same way, and it notes that limits vary by loan product and by lender. That last part is why two lenders can look at one household and reach different answers.

Underwriters actually look at two versions of it. The front-end ratio counts only the housing payment: principal, interest, property taxes, homeowners insurance, and any HOA dues. The back-end ratio counts the housing payment plus everything else you owe each month.

The back-end number is the one that usually binds. When I say a file is tight on debt-to-income, I almost always mean the back-end ratio.

Here is the arithmetic on a household near the Clackamas County median income of roughly $82,000 a year, which works out to about $6,800 a month gross. Say the car is $450, a student loan is $180, and card minimums total $120. That is $750 of existing debt. At a 45 percent back-end ratio, the total budget is about $3,060, so roughly $2,310 is left for the full house payment.

Debt-to-Income Ratio Limits by Loan Program in Clackamas County

Every program draws its line in a different place, so the debt-to-income ratio for a mortgage you need depends on which loan you are aiming for. The table below shows the guidelines I work with day to day. These are general program guidelines, subject to qualification and a full review of your income, assets, and credit.

Two limits matter alongside the ratio, because they decide which column you are even shopping in. The 2026 FHA loan limit for a one-unit home in Clackamas County is $701,500, set by HUD. The 2026 conforming loan limit is $832,750, published by the Federal Housing Finance Agency. Those are different numbers and buyers mix them up constantly.

My FHA home loans page covers the full requirements, and my guide for VA buyers in Clackamas County explains how residual income works in practice. Above $832,750 you are in jumbo territory, where my Clackamas County jumbo loan checklist lays out what underwriting expects.

What Counts in Your Debt-to-Income Ratio for a Mortgage, and What Does Not

People overestimate their ratio about as often as they underestimate it, usually because they are counting the wrong things. Your debt-to-income ratio for a mortgage only counts obligations that appear as required monthly payments.

Counted: the new housing payment, car loans and leases, student loans, credit card minimums, personal loans, co-signed loans you are legally on, court-ordered child support, and alimony. Also counted are payments on accounts you never use but still owe on.

Not counted: groceries, gas, utilities, phone bills, insurance outside the housing payment, day care, streaming subscriptions, and the 401k contribution you make every payday. Those shape whether a payment feels comfortable, and they do not enter the calculation at all.

That gap surprises people, so I say it plainly. A family in West Linn paying $2,200 a month for two kids in day care can qualify for the same loan as a neighbor with no child care cost. The ratio does not see it. Your budget does, and that is a conversation worth having before you shop.

A few line items also get handled in ways worth knowing. Student loans in deferment usually still count at a calculated payment rather than zero. A car lease counts even when the lease ends in four months. Meanwhile, a business debt paid by your company can sometimes be excluded with the right documentation.

How to Lower Your Debt-to-Income Ratio for a Mortgage in Six Steps

You can lower a debt-to-income ratio for a mortgage from either direction: shrink the monthly payments on top, or document more income underneath. Work these in order, because the first two move the needle fastest.

1. Pay off the smallest balance with the biggest payment. A $3,000 car loan with a $450 payment helps far more than a $12,000 loan at $180. Why it matters: underwriting counts the payment, not the balance, so the payment-to-balance ratio is what you are shopping for.
2. Do not consolidate without running the math first. Rolling three cards into one loan can lower total interest and still raise your required monthly payment. Why it matters: a consolidation that shortens the term raises the payment, which raises your ratio right when you need it lower.
3. Leave the paid-off accounts open. Close the loan, keep the card. Why it matters: closing a card does nothing for your ratio and can hurt your credit score, which affects pricing on the same loan. My guide to improving your credit score for a mortgage covers that interaction.
4. Document every dollar of income you actually earn. Overtime, bonus, commission, part-time work, and a second job can often be used with enough history. Why it matters: income sits in the denominator, so adding it lowers the ratio without you paying down anything.
5. Consider a co-borrower before you consider a smaller house. A spouse or family member on the loan brings their income into the calculation. Why it matters: their debts come along too, so this helps when they have income and little debt, and backfires when they do not.
6. Ask me to reprice the payment instead of the purchase. A larger down payment, a different program, or a rate buydown all lower the housing payment on the top of the fraction. Why it matters: sometimes the ratio problem is not your debt at all, and switching programs solves it without you spending a dime on your creditors.

One warning on step one. Do not drain the account you need for the down payment and closing costs to pay off a car. I have watched buyers fix their ratio and break their cash position in the same week. Bring me the numbers first and we will decide which dollars do the most work.

What Your Debt-to-Income Ratio for a Mortgage Buys at Clackamas County Prices

This ratio is not abstract in a county where the median home runs roughly $525,000 to $575,000. Every percentage point of headroom translates into purchase price, and every payment you retire translates into headroom.

Take that $450 car payment. Retiring it moves $450 a month from your debt column into your housing budget, which is a meaningful jump in the price range you can shop. I will not quote you a purchase price off a payment here, because the figure depends on pricing the day we lock. What I can tell you is that it is usually a bigger jump than buyers expect.

The effect scales with the price point. In Milwaukie, homes near the MAX Orange Line often list between $425,000 and $575,000, so a modest ratio improvement can be the difference between two and three bedrooms. Oregon City sits in a similar band at $450,000 to $600,000.

Happy Valley new construction at $575,000 to $800,000 magnifies it further, since the same headroom applies to a larger loan. At the top of the market a Lake Oswego purchase between $750,000 and $1,200,000 often crosses into jumbo underwriting, where the ratio tightens exactly when the payment grows. That combination is why I look at debt before I look at houses. My guide to how much house you can afford in Oregon walks the full calculation, including the 28/36 rule.

Why This Ratio, Not Your Credit Score, Is Usually the Ceiling

A credit score decides your pricing tier. Your ratio decides your loan amount. Buyers spend months on the first one and almost no time on the second, and the second is what sends people home from a bidding war.

I see it most clearly with strong borrowers. A West Linn couple with 780 scores and two financed vehicles can be capped below a Milwaukie buyer at 660 who drives paid-off cars. The scores never explain that outcome. The debt does.

So run both early. A soft credit review tells me your qualifying score and your exact required payments in the same sitting. From there I can show you the two or three moves that raise your ceiling most, and you can compare every program on my Clackamas County home loans hub.

Frequently Asked Questions About Debt-to-Income Ratio for a Mortgage

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

How do I calculate my debt-to-income ratio for a mortgage?

Does rent count in my debt-to-income ratio for a mortgage?

Can I get a mortgage in Clackamas County with a 50 percent debt-to-income ratio?

Do student loans in deferment count toward my debt-to-income ratio?

Should I pay off my car before applying for a mortgage?