Seattle, WA Mortgage Calculator
Estimate your monthly mortgage payment in Seattle including property taxes, homeowners insurance, PMI, and 2026 loan limits.
Local Home Values & Affordability
With a median home value of $780,000, Seattle is 152% above the national median of $310,000 — placing it firmly in premium territory where careful loan-type selection matters.
A 20% down payment on a median Seattle home requires $156,000 in cash — or $27,300 for an FHA-minimum 3.5% down payment. Buyers with less than 20% down will also need to budget for PMI or FHA MIP.
Property Tax in This Market
Based on the 0.93% effective rate and a median home value of $780,000, a typical homeowner in King County pays approximately $7,254 in annual property taxes — or $605 per month added to their mortgage payment.
King County's property tax rate of 0.93% is close to the national average of 1.10%. On a median-priced home of $780,000, expect an annual tax bill of approximately $7,254.
Sources: Tax Foundation 2025
Homeowners Insurance Costs
Insurance costs in King County are relatively modest at an estimated $1,100/year — about $92/month added to your mortgage payment, and 31% below the national average.
Premium quotes in King County typically range from $750 to $1,600 per year depending on home age, construction type, coverage limits, and your insurer. Always get multiple quotes.
Sources: NAIC 2024
Loan Limits & Financing Options
A buyer purchasing the median Seattle home ($780,000) with FHA's minimum 3.5% down would borrow $752,700 — well within the $1,063,750 elevated FHA limit for this county. FHA financing is a viable option for most buyers here.
King County is designated a high-cost area by both FHFA and HUD, meaning local FHA and conforming limits are elevated above the national baseline. This expanded purchasing power is a meaningful benefit for buyers compared to most-of-the-country baseline markets.
With 20% down on a median-priced home, the loan amount of $624,000 stays $439,750 below the $1,063,750 conforming limit — giving buyers access to conventional Fannie/Freddie pricing without jumbo underwriting.
Sources: HUD ML 2025-23, FHFA 2026
Extra Monthly Payment
Estimated Monthly Payment
$4,827
Estimates are for educational purposes only and are not a loan offer or commitment to lend.
Loan Amount: $624,000
LTV: 0.01%
P&I Payment
$4,131
Total Interest
$863,000
over loan life
Payoff
30 yr
Closing Costs
$16,770–$31,304
est. range
Monthly Payment Breakdown
2026 Loan Limit Context
FHA Limit
$1,063,750
Conforming Limit
$1,063,750
Amortization Schedule
| Mo. | Payment | Principal | Interest | Balance | Total Interest |
|---|---|---|---|---|---|
| 1 | $4,131 | $517 | $3,614 | $623,483 | $3,614 |
| 2 | $4,131 | $520 | $3,611 | $622,964 | $7,225 |
| 3 | $4,131 | $523 | $3,608 | $622,441 | $10,833 |
| 4 | $4,131 | $526 | $3,605 | $621,916 | $14,438 |
| 5 | $4,131 | $529 | $3,602 | $621,387 | $18,040 |
| 6 | $4,131 | $532 | $3,599 | $620,855 | $21,639 |
| 7 | $4,131 | $535 | $3,596 | $620,321 | $25,235 |
| 8 | $4,131 | $538 | $3,593 | $619,783 | $28,827 |
| 9 | $4,131 | $541 | $3,590 | $619,242 | $32,417 |
| 10 | $4,131 | $544 | $3,586 | $618,698 | $36,003 |
| 11 | $4,131 | $547 | $3,583 | $618,150 | $39,587 |
| 12 | $4,131 | $550 | $3,580 | $617,600 | $43,167 |
2026 Loan Limits — King County, WA
| Limit Type | 2026 Limit | Note |
|---|---|---|
| FHA Loan Limit (1-unit) | $977,500 | Max loan for FHA-insured mortgage |
| Conforming Loan Limit (1-unit) | $977,500 | Fannie Mae / Freddie Mac eligible |
Source: HUD / FHFA. Data as of 2025-01-15.
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