Seattle, Washington Mortgage Calculator - Monthly Payment with Taxes, PMI & Insurance
Seattle adds a city market adjustment on top of the King County benchmark. Actual tax bills vary by school, port, library, EMS, and voter-approved levy districts.
Loan Details
$70,000 · LTV 80%
Buyer Profile
Extra Payment
Optional principal-only payment used to estimate payoff speed and interest savings.
Monthly Payment
$1,770 Principal & Interest · $277 Property Taxes · $125 Other
Methodology and limitations
Last reviewed:
Methodology
Uses standard principal-and-interest mortgage math, then models housing-cost inputs such as tax, insurance, PMI, and extra-payment scenarios where available.
Limitations
Planning estimate only. Actual approval, escrow, PMI, fees, taxes, insurance, and closing disclosures depend on lender, property, borrower profile, and local rules.
Seattle, Washington Mortgage Calculator - Monthly Payment with Taxes, PMI & Insurance
Washington · King County
Seattle adds a city market adjustment on top of the King County benchmark. Actual tax bills vary by school, port, library, EMS, and voter-approved levy districts.
Use this mortgage calculator for Seattle, Washington to estimate the monthly payment with principal, interest, configured annual taxes, eligible exemptions, and assistance programs when the buyer profile matches the conditions.
What This Estimate Uses
- Geographic level: city
- Configured property tax rate: 0.95%
- Configured benefits or exemptions: 1
- Reviewed sources: 3
What Changes in Seattle, Washington
- Data level used: city. This page uses the most specific available data layer for Seattle, Washington.
- Configured combined annual property tax rate: 0.95% before exemptions and buyer-specific conditions are applied.
Local Tax Assumptions
These are the annual tax assumptions configured for this page. The calculator applies them to the appropriate value, then accounts for exemptions or conditions when the buyer selects them.
- Washington Local Property Tax - 0.850%
- Seattle Property Tax Market Adjustment - 0.100%
Programs and Exemptions Included
These benefits do not mean automatic approval. The calculator models them when the buyer inputs match the configured eligibility conditions.
- Mortgage Credit Certificate (MCC) - 20% of mortgage interest (requires: first-time buyer, primary residence, buyer has a Mortgage Credit Certificate)
When This Estimate Can Change
- The actual property tax bill depends on the address, overlapping taxing jurisdictions, approved exemptions, and appraised value.
- Home insurance, flood insurance, HOA dues, and PMI can vary by property, lender, and buyer profile.
- Configured closing costs include Washington Real Estate Excise Tax, but other settlement charges may appear on a real loan estimate.
2025 Local Home-Purchase Mortgage Market in King County, Washington
Local home-purchase mortgage market context for King County, Washington: in 2025 Home Mortgage Disclosure Act (HMDA) data, King County logged 29,862 final-action applications. The mortgage denial rate was 6.45% and the originated share was 71.70%.
These figures reflect the county market, not the city alone.
| Metric | King County | State |
|---|---|---|
| Final-action applications | 29,862 | 119,193 |
| Mortgage denial rate | 6.45% | 6.76% |
| Originated share | 71.70% | 72.13% |
Source: FFIEC HMDA 2025 (LAR modificado, compra de vivienda) · Texas vs California mortgage denial rates (methodology)
Local Data and Sources
Last editorial verification: May 15, 2026. This page combines the official data layers configured for Seattle, Washington.
The sources used on this page are Consumer Financial Protection Bureau mortgage cost guidance, Washington Department of Revenue property tax statistics, Washington Department of Revenue property tax levies. Each source lists which rate, exemption, or program it validates and when it was last reviewed.
- Consumer Financial Protection Bureau mortgage cost guidance - verified May 3, 2026 - General U.S. mortgage closing-cost and mortgage-cost guidance.
- Washington Department of Revenue property tax statistics - verified May 15, 2026 - Official source for Washington property-tax levy, collection, assessed-value, and tax-rate statistics.
- Washington Department of Revenue property tax levies - verified May 15, 2026 - Official source for Washington levy administration and levy-rate limits.
Frequently Asked Questions
Does Washington have one statewide property tax rate?
No. Washington property taxes depend on local levy districts, including schools, county, city, fire, and other districts.
What Washington transfer tax is modeled?
The state page uses a baseline Washington real estate excise tax estimate. Actual REET can vary by sale price tier and local add-ons.
Does this King County estimate include Seattle city tax?
No. This county page models the broader King County market. The Seattle city page adds a Seattle-specific layer.
Does Seattle have one simple property tax rate?
No. The final Seattle bill depends on overlapping levy districts, so this page uses a local market adjustment rather than claiming a single universal city rate.
Does this mortgage calculator include taxes and insurance?
Yes. This calculator estimates your full monthly housing payment by combining principal and interest with property taxes, homeowners insurance, and PMI when your down payment is below 20%. The result reflects a PITI-style payment rather than principal and interest alone, which helps you compare homes and loan scenarios more realistically before talking to a lender.