Washington state's proposed 20% capital gains tax could deter entrepreneurs from launching companies in Seattle, according to a Wall Street Journal opinion piece. The tax would apply to stock sales, business sales, and other investment gains, potentially making the region less attractive for startup founders who might otherwise choose to build their companies there.

Amazon founder Jeff Bezos famously moved to Seattle in the 1990s to start his online bookstore, taking advantage of Washington's lack of personal income tax. The proposed capital gains tax represents a significant shift in the state's tax policy that could impact future entrepreneurs' decisions about where to locate their businesses. Seattle has become a major tech hub, home to companies like Microsoft, Amazon, and numerous startups.

The tax could particularly affect early-stage companies and their founders who often rely on capital gains from stock sales or business exits as their primary source of wealth creation. This policy change may push entrepreneurs to consider other states with more favorable tax environments for startup growth and investment returns.