Washington (WA) · No state income tax · Property tax: 0.98% · Median home (ZHVI): $615,000
As of · Sources: Zillow ZHVI, Tax Foundation, Census ACS, Freddie Mac PMMS
In Washington, the median home price is $615,000 as of 2026, which directly determines your loan amount and monthly payment. Property taxes run 0.98% annually — about $6,027/year on a median-priced home — and are typically rolled into your monthly PITI payment. Homeowners insurance averages $1,060/year in Washington, adding roughly $88/month to your total housing cost. Since Washington has no state income tax, your full federal mortgage interest deduction applies without state-level complications.
Home value, monthly carrying cost, property tax, and insurance are the four levers for the mortgage payment calculator in Washington. Every row cites a primary public dataset. Numbers reflect the most recent vintage available; refresh cadence is documented in the methodology.
Every real-estate number on this page runs through the same core identity: the monthly principal-and-interest payment on a fully amortizing fixed-rate loan is M = P · r / (1 − (1+r)^(−n)), where P is the loan principal, r is the monthly rate (annual rate / 12), and n is the term in months. For a typical Washington buyer in 2026, P starts from an $615,000 median home value (Zillow ZHVI)[1], minus a standard 20% down payment.
On top of P&I the calculator adds the two Washington-specific carrying costs: property tax at the state effective rate of 0.98%[2] and homeowners insurance at roughly $1,060/year (NAIC state average)[3]. The Freddie Mac PMMS national average 30-year fixed rate (6.30% (Freddie Mac PMMS · week of ))[4] drives the payment curve — Washington rate quotes can move a few basis points around that number depending on lender, loan size, and credit band.
Calc-specific note: For a fully amortising 30-year fixed, plug Washington's ZHVI minus 20% down into the M = P·r/(1−(1+r)^−n) identity — output is principal + interest only.
Worked example — Washington
A Washington buyer purchasing the median home at $615,000 with 20% down ($123,000) borrows $492,000. At the PMMS 6.30% 30-year fixed, monthly P&I is $3,045. Add $502/month property tax (0.98% effective rate) and the typical Washington homeowners premium to reach full PITI.
Same formula, different inputs. Each city name links to its own pSEO page where the calculator is pre-filled with local medians.
| City | Median home | Median rent | HUD FMR 2BR | Median income | Est. P&I |
|---|---|---|---|---|---|
| Seattle, WA | $751,552 | $2,192/mo | $2,025/mo | $112,594 | $3,722/mo |
| Spokane, WA | $416,800 | $1,520/mo | $1,400/mo | $72,836 | $2,064/mo |
| Kennewick, WA | $438,869 | $1,686/mo | $1,550/mo | $85,881 | $2,173/mo |
| Kent, WA | $495,000 | $1,750/mo | $1,600/mo | $75,800 | $2,451/mo |
| Tacoma, WA | $445,000 | $1,600/mo | $1,475/mo | $62,500 | $2,204/mo |
Sources: Zillow ZHVI + ZORI[1], HUD FMR[2], Census ACS[3], Freddie Mac PMMS[4].
Moving one state over changes the mortgage payment numbers. Compare median home value (Zillow ZHVI), top marginal income tax rate, effective property tax rate, and the BEA all-items Regional Price Parity across Washington and its border states.
| State | Median home | Top inc tax | Prop tax rate | RPP (US=100) |
|---|---|---|---|---|
| Washington (this page) | $615,000 | None | 0.98% | 108.4 |
| Idaho side-by-side | $465,000 | 5.70% | 0.69% | 92.2 |
| compare to Oregon | $490,000 | 9.90% | 0.87% | 104.8 |
Sources: Zillow ZHVI[1], state Departments of Revenue / Tax Foundation[2], Tax Foundation property taxes[3], BEA Regional Price Parities[4].
These calculators share inputs with the mortgage payment formula, so pair them to pressure-test your answer from multiple angles.
| Metric | Washington | National Avg | ID | OR |
|---|---|---|---|---|
| Median Home Price | $615,000 | $420,000 | $465,000 | $535,000 |
| Property Tax Rate | 0.98% | 1.07% | 0.84% | 0.97% |
| State Income Tax | None | 4.6%* | 5.8% | 9.9% |
| Avg Insurance Cost | $1,060/yr | $1,544/yr | $1,320/yr | $1,440/yr |
| Cost of Living Index | 108.4 | 100 | 99 | 115 |
| Household Income — p25 | $45,301 | $41,401 | $43,600 | $45,569 |
| Household Income — p50 (median) | $96,526 | $83,592 | $81,700 | $89,511 |
| Household Income — p75 | $166,045 | $153,000 | $137,996 | $152,459 |
*Average of states that levy an income tax. 2026 estimates. Washington has the lowest estate tax exemption threshold in the U.S. at $2.193M.[3] Income percentiles from DQYDJ/Census CPS 2024[4].
Washington has no state income tax, but property taxes average 0.98% and King County (Seattle) runs significantly higher.
WSHFC (Washington State Housing Finance Commission) offers down payment assistance and homebuyer education.
Seattle-area median home prices exceed $750K — but eastern Washington (Spokane, Tri-Cities) offers medians under $400K.
Washington's real estate excise tax (REET) is tiered: 1.1% on the first $525K, up to 3% on portions over $3M.
Every number on this page reads from the same CalcFi data repository used by the Live Data pages below — the figures stay consistent.
Home Prices by State
Zillow ZHVI across all 50 states
Property Tax by State
Effective rate × ZHVI = annual bill
Household Income by State
FRED real median + percentile bands
Cost of Living by State
BEA RPP all-items + housing
No-Income-Tax States
Full list + trade-offs
Current Interest Rates
Treasury curve + PMMS + FDIC
CalcFi pSEO pages combine three inputs: (1) the calculator formula itself, which runs client-side so no inputs leave your browser; (2) state-level financial constants from primary public datasets; and (3) national benchmarks for comparison. The Washington page uses the property tax rate (0.98%), median home price ($615,000), and no state income tax from the sources listed below.
Refresh cadence:state tax brackets and minimum wage rates are reviewed annually after each state's legislative session. Property tax, median home price, insurance, and cost-of-living figures are reviewed annually against the primary sources. Income percentiles are refreshed when the Census CPS/IPUMS releases update (typically September). Page-level dateModified matches the last editorial review date, shown above.
Known limits: statewide averages mask large intra-state variance — county-level property tax and metro-level home prices differ significantly from the figures shown. For the most precise calculations, cross-check the output against your actual county assessor and the latest federal/state tax tables at filing time.
Use Mortgage Payment Calculator for any city in Washington.
Every number on this page cites a primary public dataset. Last reviewed (auto-bumped by the next ISR refresh after an ETL run).
CalcFi does not sell data. If you spot an error, email hello@calcfi.app with the URL and the correct figure.