A mortgage calculator that knows what state the house is in: principal and interest, plus Washington property tax at the state's effective rate (0.81% of value, ACS 2025 medians) and a closing-cost estimate in the CFPB's typical 2–5% range.
Loan: $484,480. Insurance estimated at 0.2% of value per year inside the monthly total.
P&I $3,062 · tax $409 · insurance $101
| Principal & interest / month | $3,062 |
| Property tax / year (0.81% effective) | $4,905 |
| Closing costs (one-time, estimate) | $14,534 |
| Total interest over the term | $617,928 |
The Census Bureau's ACS 2025 medians put Washington's typical bill at $4,911 on a $605,600 home — an effective 0.81%. Effective rates blend every local levy into one comparable number; your parcel's assessed value and local rates set the real bill.
Source: U.S. Census Bureau, ACS 2025 1-year estimates (tables B25077/B25103).
1% levy limit (RCW 84.55 / Initiative 747): each taxing district's regular levy revenue may grow at most 1%/yr plus new construction, absent a voter-approved lid lift - a revenue limit per district, NOT a cap on an individual home's bill or assessed value.
Source: state source cited in the research (see hub).
The CFPB puts typical buyer closing costs at 2–5% of the loan (origination, appraisal, title, prepaid escrows). The default here is 3% and the field is yours to change — no official schedule exists, and this page will not pretend one does. Washington transfer/recording charges sit inside that range for most purchases.
Source: Consumer Financial Protection Bureau, closing-cost guidance.
Property tax. At 0.81%, Washington adds $409 a month on the median home — in the highest-tax states that rivals a full percentage point of interest rate.
No — it is the state's median effective rate applied to your price. Assessments, exemptions (homestead and others) and local rates move real bills both ways; the county assessor's figure governs.
Below 20% down, lenders usually add private mortgage insurance (roughly 0.3–1.5% of the loan per year) until you reach ~20% equity. It is not in the default total — add it to the insurance line mentally if it applies.
Washington Mortgage Calculator with the costs other calculators skip: on the Washington median home ($605,600, ACS 2025), $3,572 a month — $3,062 principal & interest, $409 property tax at the state's 0.81% effective rate, plus closing costs of about $14,534.
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A mortgage calculator for Washington that includes Washington property tax and a closing-cost estimate alongside principal and interest.
On the median Washington home ($605,600): $3,572 a month, of which $409 is property tax.
The state's median tax bill is $4,911 a year (ACS 2025).
An effective 0.81% of value at the ACS medians — $4,911 a year on the median home.
No — they are one-time costs at closing, shown separately.
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