Conventional Loan
How Much House Can You Afford With a Conventional Loan in California?
Reviewed by the HomeMath editorial team Updated 2026-08-02
Key takeaways
- Affordability is usually capped by your debt-to-income (DTI) ratio, not the interest rate alone — most lenders cap total DTI in the mid-40s percent of gross monthly income.
- Property tax under California's Proposition 13 is assessed near 1% of purchase price, but on a high sale price that's still a real monthly line item to budget for.
- HOA dues count toward your DTI just like the mortgage payment, so a condo with high dues can lower how much home you qualify for even at the same price point as a house without HOA.
Affordability with a conventional loan in California is usually capped less by the interest rate and more by the debt-to-income ratio lenders apply — typically a ceiling in the mid-40s percent of gross monthly income once the new mortgage payment is added to existing debts.
A practical way to estimate your ceiling
Start with your gross monthly income, subtract existing recurring debt payments (auto loans, minimum credit card payments, student loans), and see what's left under your lender's DTI ceiling. That remainder, roughly, is the room available for principal, interest, property tax, insurance, and any HOA dues combined — not just the loan payment alone.
Why California buyers often feel the squeeze
- Property tax is assessed near 1% of purchase price under Proposition 13, but on a high purchase price that's still a meaningful monthly line item.
- HOA dues on condos and many planned communities add a fixed monthly cost that counts toward DTI just like a mortgage payment.
Use the calculator above to plug in your own numbers — this article is general information, not a personalized affordability assessment.
FAQ
Does a car lease count against my DTI the same way a car loan does?
Generally yes — lenders typically count the monthly lease payment as a recurring debt obligation the same way they would a loan payment.
Can a co-signer increase how much house I can afford?
A qualified co-borrower's income can raise the combined income used for DTI, but their debts are also added in, so the net effect depends on their full financial picture, not just their paycheck.
Does paying off a small debt right before applying actually help?
It can, if it meaningfully lowers your monthly obligations relative to income — paying off a loan with a small remaining balance but a real monthly payment often moves the needle more than paying down a large balance with a small minimum payment.
Is the affordability ceiling the same for a 15-year and a 30-year loan?
No — a 15-year term has a higher monthly principal and interest payment for the same loan amount, so it typically lowers the maximum purchase price you'll qualify for under the same DTI ceiling.
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