STR House Hacking Calculator

House hacking is a real estate strategy where you live in one unit or part of a property while renting out the rest to offset your housing costs. With an STR house hack, instead of traditional long-term tenants, you rent your spare unit, ADU, or bedroom on Airbnb/VRBO. This can generate 2–3x the income of a long-term rental, potentially covering 50–100%+ of your mortgage. The owner-occupied status also qualifies you for better financing (3–5% down, lower interest rates).

Qualifying for a mortgage using Airbnb income is complex. Traditional lenders typically require 1–2 years of documented STR income from tax returns. Some lenders allow projected rental income for new investments under specific programs. DSCR loans evaluate the property's income potential rather than your W-2 income. For house hacking specifically, you qualify based on your personal income, not rental income — the STR income is a bonus that reduces your housing cost after you have the mortgage.

Owner-occupied properties (1–4 units) qualify for low down payment programs: FHA loans allow 3.5% down on 2-4 unit properties (you must occupy one unit), conventional loans allow 3–5% down for owner-occupied properties, and VA loans allow 0% down for qualified veterans. These rates are significantly better than investment property loans (typically 20–25% down). The owner-occupied advantage is one of house hacking's biggest financial benefits — you access leverage that pure investors can't.

The best property types for STR house hacking are: duplexes (you live in one unit, rent the other — legal and clearly separated), single family homes with ADUs (accessory dwelling units — separate cottage, garage apartment, or basement unit), fourplexes (live in one, rent three as STR or mix LTR/STR), and homes with walkout basements or separate entrances. Spare bedroom house hacking (renting rooms within your home on Airbnb) is the most accessible but has the most lifestyle trade-offs. Local STR regulations may restrict which configurations are allowed.

House hacking legality depends entirely on local STR regulations. Some cities restrict STRs to owner-occupied properties only — this actually favors house hacking. Other cities restrict STRs by number of nights, require permits, or limit STRs to certain zones. HOAs may also restrict STR activity regardless of local law. Always verify local STR regulations and HOA rules before purchasing for house hacking. Our city market pages include regulatory risk assessments for 50+ US markets.

The amount depends on your property's STR unit size, local demand, ADR, and occupancy. Typical house hackers in strong vacation markets cover 60–100%+ of their mortgage with STR income. In urban markets, coverage of 30–60% is more common. The key variables are your mortgage payment (driven by purchase price, down payment, and interest rate) and your STR unit's net income after platform fees, cleaning, and utilities. Use this calculator to model your specific scenario.

House hacking with an STR unit offers several tax advantages: depreciation deductions on the rental portion of the property, deductions for direct expenses of the rental unit (cleaning, utilities, supplies, platform fees), and partial deductions for shared expenses (mortgage interest, property taxes, insurance, maintenance) based on the percentage of the property rented. With careful record-keeping, the tax benefits can be substantial — consult a CPA with STR experience to maximize your deductions.

The key differences: House hacking means you live on the property and qualify for owner-occupied financing (lower down payment, better interest rates). Investment property means you don't live there and must use investment financing (20–25% down, 0.5–1% higher rates). House hacking provides personal housing while building equity, and often generates enough income to live nearly rent-free. Investment properties are purely investment vehicles with more leverage required upfront. Many serious real estate investors start with house hacking before scaling to pure investment properties.