Washington mortgage calculator

30-year fixed mortgage calculator with Washington-specific defaults. Median home price $605,000 · property tax effective rate 0.94%. All inputs update live; share your scenario as a URL.

Median home price reconciled 2026-04-22. Source: Zillow Home Value Index, state-level.

Your loan

Home price

$100k$2M

Down payment$121,000

Interest rate30-yr avg: 6.875%

Loan term

Taxes & insurance

(optional, but realistic)

State

Washington

State pre-set for this page. Switch state

Property tax rate

~$474 per month

Homeowner insurance

HOA dues (if any)

PMI required. With 20% down (LTV 80.0%), private mortgage insurance is added at 0.50% of the loan annually — that's $202/month. PMI auto-removes at month 28 (78% LTV, per the Homeowners Protection Act).

Extra payments

(optional — accelerate payoff)

Biweekly paymentsPay half the monthly amount every two weeks (26 half-payments per year ≈ 13 monthly equivalents). Typically saves 4-7 years and tens of thousands in interest on a 30-year loan.

Extra each month

Applied as additional principal every month.

One-time lump sum

Single payment toward principal at the specified month (e.g. tax refund or bonus).

Estimated monthly payment

For a $605,000 home, 20% down, 6.875% APR, 30-year fixed in Washington.

Where your payment goes

Principal & interest$3,180

Property tax$474

Homeowner insurance$145

PMI$202

Loan amount

$484,000

Total interest

$660,633

Total paid

$1,144,633

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How your balance falls over time

The crossover point — where more of each payment goes to principal than interest — is at year 20.

BalanceInterest paidPrincipal paid

Amortization schedule

Year-by-year breakdown of every payment.

Period	Payment	Principal	Interest	Total interest paid	Balance
Y01Year 1	$38,154	$5,036	$33,118	$33,118	$478,964
Y02Year 2	$38,154	$5,394	$32,761	$65,879	$473,570
Y03Year 3	$38,154	$5,776	$32,378	$98,257	$467,794
Y04Year 4	$38,154	$6,186	$31,968	$130,226	$461,608
Y05Year 5	$38,154	$6,625	$31,529	$161,755	$454,983
Y06Year 6	$38,154	$7,095	$31,059	$192,814	$447,888
Y07Year 7	$38,154	$7,599	$30,556	$223,370	$440,289
Y08Year 8	$38,154	$8,138	$30,017	$253,387	$432,151
Y09Year 9	$38,154	$8,715	$29,439	$282,826	$423,436
Y10Year 10	$38,154	$9,334	$28,821	$311,647	$414,103
Y11Year 11	$38,154	$9,996	$28,158	$339,805	$404,107
Y12Year 12	$38,154	$10,705	$27,449	$367,254	$393,401
Y13Year 13	$38,154	$11,465	$26,690	$393,944	$381,936
Y14Year 14	$38,154	$12,278	$25,876	$419,820	$369,658
Y15Year 15	$38,154	$13,150	$25,005	$444,825	$356,508
Y16Year 16	$38,154	$14,083	$24,072	$468,896	$342,426
Y17Year 17	$38,154	$15,082	$23,072	$491,969	$327,344
Y18Year 18	$38,154	$16,152	$22,002	$513,971	$311,191
Y19Year 19	$38,154	$17,298	$20,856	$534,827	$293,893
Y20Year 20	$38,154	$18,526	$19,629	$554,456	$275,367
Y21Year 21	$38,154	$19,840	$18,314	$572,770	$255,527
Y22Year 22	$38,154	$21,248	$16,906	$589,676	$234,279
Y23Year 23	$38,154	$22,756	$15,398	$605,075	$211,523
Y24Year 24	$38,154	$24,371	$13,784	$618,858	$187,152
Y25Year 25	$38,154	$26,100	$12,054	$630,913	$161,052
Y26Year 26	$38,154	$27,952	$10,202	$641,115	$133,100
Y27Year 27	$38,154	$29,935	$8,219	$649,334	$103,165
Y28Year 28	$38,154	$32,060	$6,095	$655,429	$71,105
Y29Year 29	$38,154	$34,334	$3,820	$659,249	$36,771
Y30Year 30	$38,154	$36,771	$1,384	$660,633	$0

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Washington context

No state income tax. Median home price is among the highest in the country, concentrated in the Puget Sound region.

Washington — related

Washington income tax

Top marginal — · No income tax

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Compare scenarios

Up to three mortgage scenarios side-by-side with a differential row.

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National 30-year fixed

Same calculator with cross-state defaults; manually pick any state.

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Last updated 2026-05-13