Washington Mortgage Calculator (2026)
Calculate your monthly payment with Washington-specific property tax (0.98%) and average insurance ($1,100/yr).
Monthly payment
Payment breakdown
Loan summary
Amortization schedule (first 12 + every 12 months)
| Month | Principal | Interest | PMI/MIP | Balance |
|---|---|---|---|---|
| 1 | $444.85 | $3,165.75 | $226.13 | $542,255 |
| 2 | $447.44 | $3,163.16 | $226.13 | $541,808 |
| 3 | $450.05 | $3,160.54 | $226.13 | $541,358 |
| 4 | $452.68 | $3,157.92 | $226.13 | $540,905 |
| 5 | $455.32 | $3,155.28 | $226.13 | $540,450 |
| 6 | $457.97 | $3,152.62 | $226.13 | $539,992 |
| 7 | $460.65 | $3,149.95 | $226.13 | $539,531 |
| 8 | $463.33 | $3,147.26 | $226.13 | $539,068 |
| 9 | $466.03 | $3,144.56 | $226.13 | $538,602 |
| 10 | $468.75 | $3,141.84 | $226.13 | $538,133 |
| 11 | $471.49 | $3,139.11 | $226.13 | $537,661 |
| 12 | $474.24 | $3,136.36 | $226.13 | $537,187 |
| 24 | $508.52 | $3,102.08 | $226.13 | $531,276 |
| 36 | $545.28 | $3,065.31 | $226.13 | $524,937 |
| 48 | $584.70 | $3,025.90 | $226.13 | $518,140 |
| 60 | $626.97 | $2,983.63 | $226.13 | $510,852 |
| 72 | $672.29 | $2,938.30 | $226.13 | $503,037 |
| 84 | $720.89 | $2,889.70 | $226.13 | $494,657 |
| 96 | $773.01 | $2,837.59 | $226.13 | $485,671 |
| 108 | $828.89 | $2,781.71 | $226.13 | $476,036 |
| 120 | $888.81 | $2,721.79 | — | $465,704 |
| 132 | $953.06 | $2,657.54 | — | $454,625 |
| 144 | $1,021.95 | $2,588.64 | — | $442,745 |
| 156 | $1,095.83 | $2,514.76 | — | $430,007 |
| 168 | $1,175.05 | $2,435.55 | — | $416,347 |
| 180 | $1,259.99 | $2,350.60 | — | $401,700 |
| 192 | $1,351.08 | $2,259.52 | — | $385,995 |
| 204 | $1,448.75 | $2,161.85 | — | $369,154 |
| 216 | $1,553.48 | $2,057.12 | — | $351,095 |
| 228 | $1,665.78 | $1,944.82 | — | $331,731 |
| 240 | $1,786.20 | $1,824.40 | — | $310,968 |
| 252 | $1,915.32 | $1,695.27 | — | $288,703 |
| 264 | $2,053.78 | $1,556.81 | — | $264,828 |
| 276 | $2,202.25 | $1,408.35 | — | $239,228 |
| 288 | $2,361.45 | $1,249.14 | — | $211,778 |
| 300 | $2,532.16 | $1,078.43 | — | $182,342 |
| 312 | $2,715.21 | $895.38 | — | $150,779 |
| 324 | $2,911.50 | $699.10 | — | $116,934 |
| 336 | $3,121.97 | $488.63 | — | $80,643 |
| 348 | $3,347.65 | $262.94 | — | $41,728 |
| 360 | $3,589.66 | $20.94 | — | $0 |
What the payment actually costs
The carrying cost that lenders leave out of the headline number: at 0.98% effective, Washington sits 23rd of 51 states and adds around $327 a month to a $400,000 home, or $3,920 a year.
Homeowners insurance runs about $1,100 a year in Washington, 46th of 51 states and below the $1,552 national average. Together, tax and insurance add roughly $418 a month to the payment before you have paid a dollar of principal.
How this fits the rest of your tax bill
Washington charges no income tax, and property tax is where that revenue is recovered. At 0.98% the rate ranks 23rd of 51. For a renter the no-income-tax advantage is close to pure gain; for an owner of a $400,000 home it is offset by roughly $3,920 a year. Run both sides before assuming the state is cheap.
Housing costs compound with the rate. Washington runs about 10% above national-average costs, so the same 0.98% rate applies to a larger assessed value than it would elsewhere. A percentage rate is only half the number that matters; the base it applies to is the other half.
Property tax rates are effective statewide averages; your county assessor sets the actual figure and it varies widely within a state. See our methodology.