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Washington Mortgage Calculator

Monthly payment, total interest and the balance left each year for any home price, down payment, rate and term. The starting rate of 7.32% is the Freddie Mac 30-year average for Oct 22, 2026. Property tax uses Washington's average effective rate of 0.75%.

Rates checked on Oct 25, 2026

Your result

Monthly payment$2,598.18
Loan amount
$320,000.00
Total interest
$471,344.07
  • Principal 40.4%
  • Total interest 59.6%
1Principal and interest$2,198.18
2Property tax$250.00
3Home insurance$150.00
4Monthly payment$2,598.18
Show the yearly schedule
YearPrincipalInterestBalance
1$3,055.29$23,322.85$316,944.71
2$3,286.60$23,091.54$313,658.11
3$3,535.41$22,842.72$310,122.70
4$3,803.07$22,575.07$306,319.64
5$4,090.98$22,287.15$302,228.65
6$4,400.70$21,977.44$297,827.96
7$4,733.86$21,644.28$293,094.10
8$5,092.24$21,285.89$288,001.86
9$5,477.76$20,900.38$282,524.10
10$5,892.46$20,485.68$276,631.64
11$6,338.56$20,039.58$270,293.09
12$6,818.43$19,559.71$263,474.66
13$7,334.63$19,043.51$256,140.03
14$7,889.90$18,488.23$248,250.13
15$8,487.22$17,890.91$239,762.91
16$9,129.76$17,248.38$230,633.15
17$9,820.94$16,557.20$220,812.21
18$10,564.45$15,813.69$210,247.76
19$11,364.25$15,013.89$198,883.51
20$12,224.59$14,153.54$186,658.92
21$13,150.08$13,228.06$173,508.84
22$14,145.62$12,232.51$159,363.22
23$15,216.54$11,161.60$144,146.69
24$16,368.53$10,009.61$127,778.16
25$17,607.73$8,770.40$110,170.43
26$18,940.75$7,437.39$91,229.68
27$20,374.69$6,003.45$70,854.99
28$21,917.18$4,460.95$48,937.80
29$23,576.46$2,801.68$25,361.35
30$25,361.35$1,016.79$0.00
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Payments by rate and term

Monthly principal and interest on a $320,000 loan
Rate15 years20 years25 years30 years
6.32%$2,756$2,352$2,125$1,985
6.82%$2,844$2,447$2,225$2,090
7.32%$2,934$2,543$2,327$2,198
7.82%$3,025$2,641$2,432$2,308
8.32%$3,117$2,741$2,538$2,420

How it's calculated

The principal-and-interest payment uses the standard annuity formula:

M = P × r / (1 − (1 + r)^−n)

P is the loan amount, r the monthly rate and n the number of monthly payments. Property tax, home insurance, PMI (when the down payment is under 20%) and HOA fees are added on top.

Official source: Freddie Mac PMMS. Rates checked on Oct 25, 2026.

Questions people ask

How much does each 1% of interest rate add?
On $320,000 over 30 years, the payment at 7.32% is $2,198 and at 8.32% it is $2,420 a month.
Should I choose a 15 or 30-year term?
A shorter term has a higher monthly payment but far less total interest. The table above shows both.
When can I stop paying PMI?
Lenders must cancel PMI automatically when the balance reaches 78% of the original home value, and you can ask to remove it at 80%.

Reviewed by Soufyane S.. Last updated Oct 25, 2026. How we check numbers

Estimates for information only, not tax, legal or financial advice. Check with an adviser or the official tax authority.