House Hacking Calculator — Portland, OR
Pre-filled with localized assumptions for Portland. Replace the defaults with your real numbers (rent comps, taxes, insurance, repairs, and reserves) to get an accurate result.
Inputs
Results
More expensive than renting alone.
- Rental units: 3 (you live in 1)
- Rental income (gross): $3,600
- Rental income (after vacancy): $3,420
- Operating expenses: $987
- Mortgage payment: $3,539
- Total housing cost: $4,526
- Offset by rental income: −$2,433
- Your net cost: $2,093
- If you rented instead: $1,200/month
- House hacking cost: $2,093/month
- Monthly difference: -$893
Tip: FHA loans allow 3.5% down on 2-4 unit properties if you live in one. Down payment: $28,000
Portland Local Market Note
Informational onlyOregon's statewide rent stabilization caps annual increases (7% plus CPI, with a hard ceiling) for buildings over 15 years old, and Portland adds relocation-assistance payments for many no-cause terminations and large increases — model rent growth conservatively. Investors focus on neighborhoods like Lents and St. Johns for relative value. Multnomah County's stacked local taxes also affect high-income operators.
Local context for general information — not financial, legal, or tax advice. Verify current regulations and market data before making investment decisions.
How to Use This House Hacking Calculator (Mini Guide)
Live in one unit of a 2-4 unit property and rent out the others — see how much you save vs renting and whether you can live for free (or profit). These defaults are pre-filled for Portland, OR. Always replace them with your real numbers when you have them.
What house hacking is
Buy a duplex, triplex, or fourplex with an owner-occupant loan (3.5-5% down).
Live in one unit, rent out the others.
Rental income offsets (or eliminates) your housing cost.
Why house hacking is powerful
FHA loans allow 3.5% down on 2-4 unit properties if you live in one.
Conventional loans allow 5% down on 2-unit, 10-15% on 3-4 units.
You get investment property benefits with homeowner financing.
How to use this calculator
Enter purchase price and number of units (2, 3, or 4).
Enter rent per rental unit (not your own).
Value of your unit = what you'd pay to rent something similar.
Net cost = your total housing cost minus rental income offset.
What success looks like
Net housing cost < $500/month = you're winning.
Net housing cost ≤ $0 = you live for free.
Net housing cost < $0 (negative) = tenants pay you to live there.
Reality check
You're a landlord living next door to tenants — not for everyone.
Vacancy and maintenance are real — don't assume 0%.
Market rent matters — verify with comps, not wishful thinking.
How to use this calculator in Portland
Start with the pre-filled assumptions for Portland, then replace them with your deal’s numbers. If you’re an investor, keep vacancy and reserves conservative. If you’re a homeowner, pay special attention to property taxes and insurance — these often drive the rent vs buy decision.
Nearby cities in OR
Explore nearby cities to compare assumptions and outcomes.