Three ways to use it
- By home price: enter a price and down payment to see the full monthly payment.
- By income: enter your income, debts and cash to see the most you can afford (explained below).
- By monthly payment: enter the most you want to spend each month to see the price that fits it, with your down payment as a percent of the price.
How the income estimate works
Lenders look at your debt-to-income ratio (DTI): every monthly debt payment, including the new house payment, divided by your gross monthly income. This calculator finds the highest price where:
- The full house payment (principal, interest, taxes, insurance, mortgage insurance and HOA) plus your other debts stays within the DTI target, and
- Your cash covers closing costs plus the loan type's minimum down payment.
It shows two answers. Comfortable keeps total debts at 36% of income, a common budgeting guideline. Stretch uses 43%, a level many lenders accept; some loan programs go higher with strong credit or savings, but your budget gets tight.
All the cash you enter goes toward the down payment after closing costs, so more savings lowers the loan amount and the payment.
What limits you
If income is the limit, paying off a debt, adding a co-borrower or finding a lower rate raises the price you can afford. If cash is the limit, down payment assistance, a seller credit toward closing costs, or a loan with a smaller minimum down payment can help more than a raise would.