Washington's Proposed Millionaires Tax (SB 6346) and the "Seattle Tax Stack": Mechanics, Migration, and Real Estate Impacts

Industrial Advisors Podcast hosts Bill Condon and Matt McGregor discuss Washington's proposed "Millionaires Tax," SB 6346, a 9.9% tax on household income above $1 million, noting it can effectively hit dual-income households and "lumpy" stock-based compensation. They describe a cumulative Seattle "tax stack" (9.9% state, 5% social housing, 2.4% JumpStart, 0.58% WA Cares) exceeding 18% before federal taxes, potentially reaching 55–60% total, and argue it could influence jobs, investment, sports free agents, and real estate demand, including taxation of Washington-sourced income for nonresidents. Using an AI-generated deep dive built from documents, the episode compares migration and revenue dynamics in New York and California, explains domicile-planning timelines, highlights QSBS (Section 1202) as a potential shelter, and emphasizes the risk that the $1 million threshold could be lowered, especially if tech valuations fall and projected revenues miss.

0:00 Cold open: the $1M household threshold
0:46 Introduction to Washington's proposed millionaires tax
2:08 RSUs, deferred income, and one-time tax events
3:10 Seattle's 18% local tax stack explained
5:31 Commercial real estate and Washington-sourced income
7:00 Investor demand, property values, and economic ripple effects
8:01 Why Bill and Matt used AI for this episode
10:15 AI deep dive: tax flight and wealth migration
11:19 Washington as a national tax policy test case
14:32 Revenue projections and the 21,000 filer base
15:22 The Seattle tax stack breakdown
16:50 Federal taxes and the 55%–60% combined burden
18:47 The real estate exemption in SB 6346
19:37 Lessons from Los Angeles Measure ULA
22:57 Luxury housing demand and high-net-worth buyer risk
24:11 2028 effective date and relocation planning
26:35 RSUs and "lumpy vesting" risk for tech workers
28:05 The marriage penalty in the proposed tax structure
30:06 QSBS as a potential shelter for founders
33:13 California, New York, and wealth migration data
36:38 Remote work and the new mobility of high earners
38:47 Why the $1M threshold may not stay fixed
41:04 Massachusetts and the risk of expanding the tax base
43:29 Tech market correction risk and revenue shortfalls
44:32 Final takeaway: the "leaky bucket" problem
45:06 Closing comments