Seattle and King County Mortgage Hub: High-Balance Limits, RSUs and Townhome Loans
Updated October 2026
Seattle sits inside the King, Snohomish and Pierce county high-cost tri-county area, which means the 2026 conforming ceiling runs to roughly $1,035,000 instead of the $832,750 baseline that applies across Eastern and Central Washington. That single distinction decides whether a Queen Anne craftsman or a Beacon Hill townhome is financed as a high-balance conforming loan or pushed into jumbo territory with tighter reserve expectations. Buyers who understand the break point early stop over-structuring their down payment.
How the 2026 Limits Shape a Seattle Offer
High-balance conforming pricing carries a modest rate adjustment over baseline conforming, but it keeps you inside agency guidelines: standard documentation, no post-closing reserve mandate beyond the automated finding, and gift funds treated normally. Jumbo financing above the ceiling typically asks for six to twelve months of reserves and a lower debt ratio. The 2026 FHA floor of $541,287 is largely irrelevant in Seattle proper, since King County FHA limits track the high-cost structure instead.
| Loan structure | 2026 Seattle relevance |
|---|---|
| Baseline conforming $832,750 | Applies in Eastern and Central WA, not King County |
| High-balance conforming to about $1,035,000 | The practical King County agency ceiling |
| Jumbo above the ceiling | Reserves, lower ratios, bank-statement scrutiny |
Run scenarios on both sides of the line with the monthly payment calculator before you write an escalation clause.
RSU Income and Equity Compensation
Amazon, Microsoft and the broader Seattle tech base pay heavily in restricted stock. Underwriters generally want a two-year vesting history plus documented future vesting, then average the realized value. Sign-on bonuses rarely count. Because vest schedules cliff, a December offer and a March offer can underwrite very differently on identical pay.
Closing Costs and Washington Taxes
Washington charges no state personal income tax, so qualifying income reads higher per gross dollar than in Oregon or California. The tradeoff arrives at closing: graduated state REET runs 1.10% to $525,000, 1.28% from $525,000 to $1.525M, and 2.75% above that, plus local REET of 0.25% to 0.50%. Seattle closings happen as table closings coordinated by an escrow company alongside a title company. Model the seller and buyer split with the closing cost estimator, and review the Washington Department of Revenue Property Tax and REET schedule plus FHFA Loan Limits directly.
Neighborhood-level townhome and condo mechanics are covered in the Seattle neighborhood guide.
Compare Current Mortgage Rates
Compare current APRs, points, fees, and estimated monthly payments from participating lenders below.
Loan Program Comparison: 2026 Benchmarks
Seattle and King County Mortgage Hub: High Balance Limits, RSUs and Townhome Loans — Choose a mortgage by comparing eligibility, upfront cash and total monthly costs, not the advertised rate alone. Conventional, FHA, VA and USDA serve different borrowers. Confirm county limits, taxes, insurance and lender requirements before comparing personalized Loan Estimates for your household.
Historical 2025 one-unit comparison: conforming $806,500; FHA floor $524,225. County and unit-count limits can differ.
| Loan program | Down payment / equity | 2026 one-unit baseline | Costs and page-specific comparison |
|---|---|---|---|
| Conventional | 3%–5% subject to eligibility | $832,750 | PMI generally below 20% down |
| FHA | 3.5% at 580+; 10% at 500–579 | $541,287 floor | 1.75% upfront MIP; 0.55% annual for >95% LTV, base loan ≤$726,200, term >15 years |
| VA | 0% for eligible borrowers | No VA limit with full entitlement | No monthly PMI; funding fee unless exempt |
| USDA | 0% for eligible borrowers | Income, address and repayment eligibility | Guarantee and annual fees; confirm current schedule |
| Jumbo | Lender-specific cash and reserves | Above applicable conforming limit | Lender-specific pricing and insurance |
| Home Equity / Refinance | Equity and underwriting dependent | Property and lender dependent | Compare closing costs, term and break-even |
Sources: FHFA limits; HUD FHA limits.
Editorial Methodology & Primary Sources
Verification date: Not recorded; check the primary source and lender timestamp before relying on an estimate.
Rate comparisons use participating lender feeds, not a whole-market survey or guaranteed offers. Freddie Mac PMMS is a market benchmark, not a personalized quote. Calculator models rely on published regulatory formulas and disclosed assumptions rather than fabricated first-person loan testing.
Monthly principal and interest use the amortization formula P × r / (1 − (1 + r)−n), where r is the monthly note rate and n is the number of payments; at zero interest use P / n. PITI adds monthly property taxes and homeowners insurance; PMI is separate. APR includes applicable finance charges under Regulation Z and is not the note rate used for payments. Compare lender Loan Estimates for actual APR and fees.
- Consumer Financial Protection Bureau (CFPB) — Loan Estimates, APR and borrower disclosures; Regulation Z.
- U.S. Department of Housing and Urban Development (HUD / FHA) — FHA program guidance.
- U.S. Department of Veterans Affairs (VA) — VA loan eligibility and benefits.
- Freddie Mac Primary Mortgage Market Survey (PMMS) — published rate benchmarks.
- U.S. Census state tax collections — state property tax benchmarks; confirm parcel-specific assessments and exemptions with the state revenue department and local assessor.
The payment snapshot uses illustrative annual taxes of 1% of home price, $1,200 insurance and 0.5% PMI below 20% down, not verified local quotes. Other calculators disclose their inputs and assumptions. Published guidance and lender feeds may change independently; confirm current program rules, taxes and offers before a decision.