House Hacking Calculator
Estimate your effective housing cost when you live in one unit of a multifamily property and rent the others.
Your numbers
- Total monthly cost
- $4,913
- Rental income
- $3,230
- Cash to buy
- $26,000
- Total cost
- Rental income
- You pay
How the house hacking calculator works
Effective cost = mortgage, tax, insurance and maintenance − rent collected (after vacancy). Negative means the property pays you.
Example
Using the default inputs (Purchase price: $520,000; Down payment: 5%; Mortgage rate: 6.75%; Units rented to others: 2; Rent per rented unit: $1,700; …), the calculator returns your effective housing cost of $1,683. Change any field above to see your own result and charts update instantly.
Good for these goals
Frequently asked questions
What loans allow low down payment for owner-occupants?
FHA allows as little as 3.5% down on 1–4 unit properties when you live there.
What are the risks?
Vacancies, repairs and being a live-in landlord.
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Estimates are for educational purposes only and are not financial, tax or legal advice. Results depend on your inputs and simplified assumptions; tax figures reflect 2026 federal rules and may differ from your situation. See our disclaimer. © 2026 FinanzCalc.