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House Hacking Calculator

Calculate true housing costs with rental income.

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House Hacking Calculator

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How This is Calculated

Formula:

Net Monthly Cost = Total Housing Expenses (PITI) - Rent Income From Roommates/Tenants

Calculates housing cost reductions or cash flow generated by renting out rooms or adjacent units of your primary residence.

Sources & Assumptions: Standard real estate investment and cash flow calculations.

What Is House Hacking?

House hacking is a real estate investment strategy where you purchase a property — typically a multi-unit home, duplex, or a house with a basement or garage apartment — and rent out the portion you do not occupy. The rental income collected from your tenants offsets or completely eliminates your monthly mortgage payment, allowing you to live for free or dramatically reduce your largest monthly expense. Made popular by the FIRE (Financial Independence, Retire Early) community, house hacking is one of the most accessible entry points into real estate investing because it qualifies for owner-occupied mortgage financing (including FHA loans with as little as 3.5% down), which carries lower interest rates than standard investment property loans.

Formula Used

Formula:

Net Monthly Cost = Total Housing Expenses (PITI) − Rental Income from Tenants
Sources & Assumptions: Calculated using standard real estate cash flow analysis. PITI = Principal + Interest + Taxes + Insurance. Vacancy and management costs are factored from industry averages.

ⓘ Disclaimer: Results are estimates for educational purposes only and do not constitute financial, tax, or investment advice. Always consult a qualified financial professional before making significant financial decisions.

Results are for informational purposes only and do not constitute financial advice. Always consult a qualified financial professional.