Should I pay off debt before buying a house?

Not necessarily all debt — but high-rate revolving debt (credit cards) should be eliminated or significantly reduced first. A lower debt-to-income ratio improves your mortgage rate and loan amount qualification. More importantly, carrying high-rate debt while taking on a mortgage means you're paying 22% on credit cards while borrowing at 7% for the house — mathematically backwards.

What debt-to-income ratio do mortgage lenders require?

Most conventional mortgages require a back-end DTI (all monthly debt payments ÷ gross monthly income) of 43% or below. FHA loans allow up to 57% in some cases. To qualify for the best rates, target under 36% total DTI including your estimated mortgage payment. Use the DTI calculator on this site to see where you stand.

Which debts hurt mortgage approval the most?

Revolving debt (credit cards) hurts most, for two reasons: high credit utilization ratio (anything above 30% of your limit) and high minimum payments that inflate your DTI. Installment debt (car loans, student loans, personal loans) has fixed payments that lenders can easily model. Pay down credit cards before the mortgage application — even partial payoff improves your approval odds and rate.

How much should I save for a down payment vs paying off debt?

A 20% down payment eliminates PMI (private mortgage insurance, typically 0.5–1.5% of the loan annually). Below 20%, you pay PMI — effectively an extra monthly cost. If you have credit card debt at 22%, it's usually better to eliminate the cards first, then save for 20% down, rather than saving for a large down payment while carrying high-rate debt.

How to Pay Off Debt While Saving for a House

Buying a house and paying off debt compete for the same dollars. But they're not equally urgent — and the order you tackle them in can mean the difference between qualifying for a good mortgage and a bad one, or not qualifying at all.

What mortgage lenders actually care about

Mortgage approval depends heavily on three things: credit score, debt-to-income ratio (DTI), and down payment size. Your debt directly affects all three.

Credit score: High credit card utilization (balance ÷ limit) drags your score down. Paying cards below 30% utilization — ideally below 10% — before applying for a mortgage can raise your score 20–50 points, which translates to a meaningfully lower interest rate.

Debt-to-income ratio (DTI): Your back-end DTI is all monthly debt payments (including estimated mortgage) ÷ gross monthly income. Most lenders want this under 43%. Every monthly debt payment you eliminate before applying increases how large a mortgage you can qualify for.

Down payment: At 20%, you avoid PMI (private mortgage insurance — typically $100–250/month on a $300,000 home). Below 20%, PMI adds real ongoing cost.

Which debts hurt mortgage approval most

Not all debt affects mortgage approval equally:

Credit cards (revolving): Hurt the most. High utilization ratio directly depresses your credit score. Minimum payments add to DTI. Paying cards to under 30% utilization before applying is one of the highest-ROI moves for mortgage qualification.
Car loans: Fixed payments that lenders can model — less damaging than credit cards. Still count toward DTI.
Student loans: Count toward DTI. For federal loans in IDR, lenders use either the actual payment or 0.5–1% of the balance as the monthly payment estimate — check with your lender.
Personal loans: Fixed payments, similar to car loans. Count toward DTI but don't affect credit utilization.

The recommended order

Build a small emergency fund ($1,000–2,000). Unexpected costs during the homebuying process are real — inspections, moving, closing cost overages.
Eliminate credit card debt entirely, or reduce utilization below 10%. This improves both your credit score and DTI simultaneously.
Check your DTI with the mortgage payment included. Use our DTI calculator with a realistic mortgage payment at current rates. If DTI is above 43%, you have more debt to eliminate before qualifying for your target home price.
Save for down payment. Once DTI is acceptable and credit cards are clean, redirect freed-up payments to a HYSA earmarked for down payment.

The 20% down payment question

PMI on a $350,000 home at 0.8% costs about $233/month. That's real money. But if you have credit card debt at 22%, the math often still favors: eliminate cards → save for 10–20% down → buy with PMI → pay down mortgage to 20% equity to cancel PMI. The 22% card interest typically costs more than PMI while you're carrying it.

If you're choosing between a 10% down payment now (with PMI) and waiting 2 more years to save 20% — run the numbers on local home price appreciation. In appreciating markets, buying earlier with PMI can still win financially.

Use the DTI calculator first

Before deciding how much debt to pay off before buying, plug your current debts and a realistic mortgage scenario into the DTI calculator. It tells you exactly where you stand and how much debt reduction is needed to hit your target DTI threshold.