Buyer tool
Rent vs. Buy Calculator
If you stay long enough, buying usually wins. If you don't, renting wins. This tool finds your break-even year — and shows the total cost of each scenario over your expected holding period.
Estimate only. The model uses straight-line appreciation and rent growth; real markets are lumpy. Tax deductions for mortgage interest and SALT are not modeled (Washington has no state income tax, so impact is smaller than in California or New York).
How the comparison works
For each year of your holding period, the calculator runs both scenarios in parallel:
- Buying: mortgage payments, property tax, insurance, maintenance, HOA, and up-front down payment + closing costs. At the end, you sell — getting back the home's appreciated value minus mortgage payoff, REET, and selling costs.
- Renting: rent (growing each year). The down payment + closing costs you'd have spent buying go into an investment portfolio at the assumed return rate. Each year that buying costs more than renting, the difference also goes into the portfolio (apples-to-apples comparison). At the end, you keep the portfolio.
Net cost = total cash out minus what you get back at the end (home equity for buyers, investment growth for renters). Lower number wins.
What pushes the break-even earlier
- Higher rent growth
- Higher home appreciation
- Lower interest rates
- Lower selling costs (a flat-fee listing helps here)
What pushes it later
- High investment-return assumptions on the renter side
- High maintenance / HOA assumptions
- Short holding periods (under 4 years rarely wins)
The Seattle reality check
Greater Seattle home prices compounded around 5–6% per year over the last 20 years (with significant volatility — including the 2026 dip of about 2% YoY). Recent 5-yr CAGR is closer to 2.5%. If you plan to stay 5+ years and have a stable income, buying usually wins. Under 4 years, renting almost always does. Want us to run real comps for your scenario?
Next: try the mortgage calculator for the actual monthly payment, or the affordability calculator if you're sizing how much house your income supports.