Enter your numbers
Adjust any field and recalculate — figures are pre-filled with a typical example.
Formula & explanation
House Affordability Calculator uses the following calculation:
This is a simplified model intended for planning and education. Real-world offers from lenders, institutions, or tax authorities may include additional fees, rules, or adjustments not reflected here.
Frequently asked questions
What debt-to-income ratio do lenders typically allow?
Many conventional lenders cap total DTI around 36–43%, though some programs allow higher ratios with compensating factors.
Does this include property tax and insurance?
No, this is a simplified affordability estimate based on principal and interest; build in a buffer for taxes, insurance, and maintenance.
How much does a bigger down payment change affordability?
A larger down payment reduces the loan amount needed, which directly raises the home price you can afford at the same monthly payment.