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Washington mortgage calculator

Pre-filled for Washington: the median home value ($600,000) and the state's effective property tax rate of 0.79%. Change anything to match your home.

Home price
Down payment$120,000
%
Interest rateAPR, fixed
%
Loan term
Extra monthly paymenttoward principal
/ mo

Estimated monthly payment

$3,578.93

Loan $480,000 · 20% down

  • Principal & interest$3,033.93
  • Property tax$395.00
  • Home insurance$150.00
See the month-by-month schedule →
Total interest
$612,211
Total cost
$1,288,411
Payoff time
30 yr
PMI paid
None

Principal vs. interest by year

1: Principal 5,365, Interest 31,04212: Principal 5,724, Interest 30,6833: Principal 6,108, Interest 30,2994: Principal 6,517, Interest 29,89045: Principal 6,953, Interest 29,4546: Principal 7,419, Interest 28,9887: Principal 7,916, Interest 28,4918: Principal 8,446, Interest 27,96189: Principal 9,012, Interest 27,39610: Principal 9,615, Interest 26,79211: Principal 10,259, Interest 26,14812: Principal 10,946, Interest 25,4611213: Principal 11,679, Interest 24,72814: Principal 12,461, Interest 23,94615: Principal 13,296, Interest 23,11116: Principal 14,186, Interest 22,2211617: Principal 15,137, Interest 21,27118: Principal 16,150, Interest 20,25719: Principal 17,232, Interest 19,17520: Principal 18,386, Interest 18,0212021: Principal 19,617, Interest 16,79022: Principal 20,931, Interest 15,47623: Principal 22,333, Interest 14,07424: Principal 23,829, Interest 12,5792425: Principal 25,424, Interest 10,98326: Principal 27,127, Interest 9,28027: Principal 28,944, Interest 7,46328: Principal 30,882, Interest 5,5252829: Principal 32,951, Interest 3,45730: Principal 35,154, Interest 1,25030
PrincipalInterest

Amortization schedule by year

YearPrincipalInterestBalance
1$5,365$31,042$474,635
2$5,724$30,683$468,910
3$6,108$30,299$462,803
4$6,517$29,890$456,286
5$6,953$29,454$449,332
Monthly payment$3,578.93

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Washington at a glance

Effective property tax
0.79%
Rank (1 = highest)
24th of 51
Median home value
$602,200
Median tax bill
$4,729/yr

On the same $400,000 home, property tax in Washington adds about $263.33/month, versus $296.67/month at the national rate.

Washington mortgage payments by home price

Home pricePrincipal & interestProperty taxTotal / month
$300,000$1,516.96$197.50$1,864.46
$450,000$2,275.44$296.25$2,721.69
$600,000(median)$3,033.93$395.00$3,578.93
$900,000$4,550.89$592.50$5,293.39
$1,200,000$6,067.85$790.00$7,007.85

20% down, 6.5% 30-year fixed (example rate), 0.79% property tax, $1,800/yr insurance, no HOA. Also see: how much house you can afford in Washington.

Mortgage calculators for other states

Assumptions

  • Fixed interest rate for the full term.
  • Property tax, insurance and HOA stay constant (in reality they usually rise over time).
  • PMI applies only when the loan is over 80% of the home price, and stops once the balance reaches 78% of the original price.
  • Extra payments go entirely to principal.
  • Washington figures: Effective rate = ACS median real estate taxes paid ÷ ACS median value, owner-occupied housing units, by state. Source: US Census Bureau ACS 2024.

Frequently asked questions

What is the property tax rate in Washington?+

The effective property tax rate in Washington is about 0.79% of home value a year (median taxes paid $4,729 on a median home worth $602,200). That's the 24th highest of 50 states and DC, and lower than the national 0.89%. Your actual bill depends on your county, city and exemptions.

What's the mortgage payment on a median-priced home in Washington?+

For a $600,000 home with 20% down at an example 6.5% 30-year rate, the payment is about $3,578.93 a month, including $395.00 of property tax and $150.00 of insurance.

How much income do I need to buy a home in Washington?+

To afford the median Washington home ($600,000) under the 28/36 guideline with 10% down and no other debts, you'd need roughly $180,000 a year in gross income at a 6.5% rate.

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Last reviewed October 14, 2026. Calculator version 1.0.0. Sources: US Census Bureau, ACS 2024 1-year, Table B25103 (Median Real Estate Taxes Paid) · US Census Bureau, ACS 2024 1-year, Table B25077 (Median Value, Owner-Occupied). Results are estimates for educational purposes, not financial, tax or lending advice. How we check our numbers.