Affordability Formula:
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This calculator estimates how much you can afford to spend on a home based on your income, existing debt obligations, and a selected debt factor that represents your risk tolerance.
The calculator uses the affordability formula:
Where:
Explanation: The formula calculates your available funds for a mortgage payment after accounting for existing debt obligations multiplied by a safety factor.
Details: Proper affordability calculation helps prevent over-leveraging and ensures you can comfortably make mortgage payments while maintaining other financial obligations.
Tips: Enter your annual income and debt payments in dollars. Select a debt factor based on your risk tolerance (conservative, moderate, or aggressive).
Q1: What debt should I include?
A: Include all recurring debt payments - car loans, student loans, credit card minimums, personal loans, etc.
Q2: Which factor should I choose?
A: Conservative (1.5x) if you want more safety margin, Moderate (1.2x) for balanced approach, Aggressive (1.0x) if you expect income growth.
Q3: Does this include taxes and insurance?
A: No, this is a simplified calculation. Your actual mortgage payment will include principal, interest, taxes, and insurance (PITI).
Q4: What's a good affordability amount?
A: Typically, your total housing costs shouldn't exceed 28% of gross income, and total debt payments shouldn't exceed 36%.
Q5: Should I use gross or net income?
A: This calculator uses gross income, similar to how lenders evaluate your mortgage application.