The capital gains provisions represent the single largest revenue raiser in the bill. For high-income investors, the changes are significant. For typical middle-class investors with 401(k)s and index funds, the impact is largely indirect.
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Short-Term vs. Long-Term Treatment Changes
The holding period for long-term capital gains treatment is extended from 12 months to 18 months for gains above $500,000. Gains on assets held between 12 and 18 months will now be taxed as ordinary income for high earners.
Core Takeaway
For investors near the $500,000 gain threshold, the mathematics of waiting an additional 6 months before selling can be substantial. At a 37% marginal rate vs. 20% long-term rate, the tax cost difference is approximately $85,000 per $500,000 of gain.