Not financial advice. Mortgage FV Calculator is a software calculator, not a personal-finance product or advisory service. It computes standard financial functions and displays the results for your convenience. Nothing here constitutes, or is intended to constitute, financial, investment, tax, legal, mortgage, credit, or insurance advice. Always consult a qualified professional before making any financial decision.
Seattle mortgage calculator
A median-priced Seattle, WA home at 6.75% over 30 years, with Washington property tax of 0.87% and $1,400 a year of homeowners insurance. Every figure below is computed on our amortising engine — nothing is estimated in the browser.
$6,387 a month, all in
Principal and interest are $5,248; escrow and PMI add the rest. Over the full term the loan costs $1,080,111 in interest. Discounted at 5%, buying here has a net present value of $-85,847 ($393,112 in today’s dollars).
Within Washington, Seattle is 2nd of the 5 Washington markets covered here, between Bellevue at the top and Spokane at the bottom of a 2.67x spread. A state-level median hides most of that.
Seattle carries a premium over the rest of Washington: a median home here runs $899,000, about 45% above the state median of $620,000. The deposit moves with it, so the same 20% down is $179,800 rather than $124,000.
The price-to-rent ratio here is 24.3 ($899,000 to buy, $3,080 a month to rent), which is high. Renting and investing the deposit is a genuine alternative in Seattle, not a fallback position.
Monthly cost in Seattle vs comparable rent
Owning is stacked by component; renting is the local median asking rent.
The monthly breakdown
| Median home price | $899,000 |
|---|---|
| Down payment (10%) | $89,900 |
| Loan amount | $809,100 |
| Principal & interest | $5,248/mo |
| Property tax (0.87%) | $652/mo |
| Homeowners insurance | $117/mo |
| PMI while above 80% LTV | $371/mo |
| Total monthly payment | $6,387/mo |
| Comparable rent | $3,080/mo |
What a rate move does to the Seattle payment
| Rate | Principal & interest |
|---|---|
| 5.5% | $4,594/mo |
| 6% | $4,851/mo |
| 6.5% | $5,114/mo |
| 7% | $5,383/mo |
| 7.5% | $5,657/mo |
| 8% | $5,937/mo |
Rent or buy in Seattle?
Against $3,080 a month in rent, over 7 years renting leaves you about $231,040 better off — $194,366 once 2.5% inflation is stripped out. See the Washington rent-vs-buy page.
Where these numbers come from
Washington medians come from editorial and are refreshed weekly. The Seattle figures index those state medians to the local market, so they track the same feed rather than going stale. Insurance and the state income tax rate are editorial. Treat everything here as a planning estimate, not a quote.