INTERACTIVE DECISION TOOL
Roommate Mortgage Offset Calculator
Test how roommate contributions change the family cost of owning near campus. Inputs stay on the left while the visual output updates on the right as assumptions change.
THE NUMBERS, WITH YOUR ASSUMPTIONS
Is Buying Cheaper for Your Family?
The interest rate is a planning input, not a current offer. Enter actual taxes, insurance, HOA and mortgage insurance when available. Results update as you type.
4-year net ownership cost
$275,929Renting lower by $122,329 under these assumptions.
Payment & cost breakdown
- Loan amount
- $540,000
- Principal & interest / month
- $3,502
- Taxes + insurance + HOA + MI
- $950
- Rent over 4 years
- $153,600
- Ownership cash outlay
- $395,967
- Net proceeds after hypothetical sale
- $120,038
- Opportunity cost of initial cash
- $0
- Renting lower by
- $122,329
Net cost = cash outlay − sale proceeds + opportunity cost. Default price appreciation is 0%. Includes purchase/sale costs, principal paydown, maintenance and entered roommate income. Excludes tax benefits, inflation in ownership costs and reinvestment of monthly differences.
Educational estimates only. No loan approval, rate quote, or commitment to lend. Rates, terms, down payment, documentation, reserves, occupancy and property eligibility vary by borrower, lender, state and program. Rental income, appreciation and investment returns are not guaranteed.
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