There are two numbers that matter: how much a lender will approve you for, and how much you actually want to spend. They are not always the same, and the second one is more important for your peace of mind.
How lenders measure affordability
Lenders focus heavily on your debt-to-income ratio (DTI), which compares your monthly debts plus the new house payment to your gross monthly income. Many programs look for a DTI at or below roughly 43% to 50%.
What is included in the payment
- Principal and interest on the loan
- Property taxes
- Homeowners insurance
- Mortgage insurance, if applicable
- HOA dues, if the property has them
Set your own comfortable number
A good habit is to pick a monthly payment that still leaves room for savings, retirement, and life. Working backward from a comfortable payment often gives a healthier price range than starting with the maximum approval.
Get pre-approved early so you shop in the right range and can move fast when you find the right home.

