Mortgage Calculator in Washington

Calculate your monthly mortgage payment in Washington using the 2026 median home price of $596K and current local rates. Adjust the inputs below. Formula shown, sources cited — no account required.

Washington's housing market is one of the most expensive in the country, with a median home price of $596,000 driven largely by the Seattle metro's concentration of high-paying technology jobs. The cost-of-living index of 112.9 places the state well above the national baseline, meaning buyers pay premium prices across housing, services, and everyday expenses. Property taxes average 0.98%, which is moderate given the high price base — on a $596,000 home, that adds roughly $486 per month. Washington charges a graduated real estate excise tax (REET) on home sales, paid by the seller, but it affects pricing dynamics and market behavior in every transaction. Closing costs for buyers average 1.5%, roughly $8,940 on a median purchase. At 12% down, buyers need $71,520 before closing costs. First-time buyers should explore the House Key Opportunity and HomeChoice Down Payment Assistance programs. Use a mortgage calculator with the current 6.35% average rate — lower than most states — to see what your monthly principal and interest looks like on Washington's elevated purchase prices.

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Washington Housing Market at a Glance (2026)

$596K

Median Home Price

6.35%

Avg Mortgage Rate

0.98%

Property Tax Rate

12%

Typical Down Payment

Buying a Home in Washington: Costs to Know

Average closing costs1.5% of purchase price

On a $596K home, closing costs â‰ˆ$8,940

Median household income$99,389/yr

State income tax (top rate)None

First-Time Buyer Programs in Washington

Washington offers state-sponsored programs that can reduce your down payment or closing costs:

✓House Key Opportunity
✓HomeChoice Down Payment Assistance

Buying a Home in Washington: No Income Tax Advantage

A standard mortgage payment in Washington is calculated using the amortization formula:M = P[r(1+r)^n] / [(1+r)^n - 1]

Where P is the loan principal, r is the monthly interest rate (annual rate ÷ 12), and n is the number of monthly payments. On a $596K home in Washington with a 12% down payment at 6.35% over 30 years, your principal and interest payment comes to approximately $3,264/month— not including property taxes or homeowner's insurance.

Washington's property tax rate of 0.98% adds roughly $487/month to your total housing cost on a $596K home. This rate is near the national average of ~1.1%.

Washington vs. National Average

Metric	Washington	National Avg
Median Home Price	$596,000	$420,000
Property Tax Rate	0.98%	1.07%
Avg Mortgage Rate	6.35%	6.85%
Cost of Living Index	112.9	100

Questions You Might Ask — Mortgage Calculator in Washington

What is the average mortgage payment in Washington?

Based on the median home price of $596K in Washington with a 12% down payment and 6.35% rate (30-year fixed), the estimated monthly principal and interest payment is approximately $3,264. Adding property taxes (~$487/mo) and homeowner's insurance, total PITI is typically $3,901–$4,001/month.

What is the property tax rate in Washington?

Washington has an average effective property tax rate of 0.98%. On the median home price of $596K, that equals roughly $5,841 per year — or $487 added to your monthly mortgage payment. This is near the national average of ~1.1%.

How much down payment do I need to buy a home in Washington?

The typical down payment in Washington is 12% — about $71,520 on the median $596K home. Conventional loans require as little as 3% down; FHA loans allow 3.5%. First-time buyers may also qualify for assistance through programs like House Key Opportunity.

What are closing costs in Washington?

Average closing costs in Washington are approximately 1.5% of the purchase price — about $8,940 on the median $596K home. Closing costs include lender origination fees, title insurance, escrow, prepaid interest, and government recording fees.

What income do I need to afford the median home in Washington?

To afford the $596K median home in Washington under the 28% housing-cost rule, you need a gross monthly income of at least $13,932 — roughly $167K/year. The median household income in Washington is $99,389.

Data Sources & Methodology

State data sourced from the National Association of Realtors (median home prices), Tax Foundation (property tax rates, income tax), Freddie Mac PMMS (mortgage rates), ATTOM Data Solutions (closing costs), and U.S. Census Bureau ACS (household income). Last updated 2026.