How much home can you actually afford?

What lenders actually look at

Behind any pre-approval, four numbers do most of the work:

• Gross monthly income, pre-tax, including reliable bonuses and self-employment income (averaged differently for self-employed borrowers).
• Total monthly debts, minimum payments on credit cards, auto loans, student loans, and any new mortgage payment.
• Debt-to-income ratio (DTI), total debts ÷ gross income. Most conventional programs cap this around the low-to-mid 40s. The exact threshold depends on the program and your overall profile.
• Credit profile, score, depth of file, and recent activity. The same loan amount can carry meaningfully different terms based on credit.

What lives outside the principal-and-interest payment

Almost every “monthly mortgage payment” people quote skips three things:

• Property taxes. In California these vary by county and by the assessed value at the time of purchase. Plan to escrow.
• Homeowner's insurance. Required by lenders. Costs vary widely by region, wildfire and flood zones can shift the math.
• Mortgage insurance. When you put less than 20% down on a conventional loan, expect a monthly mortgage insurance premium until you reach the threshold.

Reserves matter more than people realize

Lenders want to see post-closing reserves, savings beyond the down payment and closing costs. The exact amount varies by program, but the principle is the same: showing you can handle a couple of months of payments after closing strengthens your file and reduces risk if something changes.

Where this conversation usually starts

The honest first question on most calls isn't “how much can I qualify for?” It's “what's a comfortable monthly payment, given everything else in your life?” From there we work backward to a price range that has room to breathe.