A proposed change to how long-term capital gains are taxed is moving through Washington, and it could alter the math on everything from index funds to rental properties.
The current structure taxes most long-term gains at 0%, 15%, or 20%, depending on taxable income.
The new framework would adjust those income thresholds and, for higher earners, add a fourth tier.
For everyday investors, the headline number matters less than the bracket they land in.
A household earning $100,000 filing jointly currently sits in the 15% long-term rate.
Under the proposal, that same household would stay at 15% but see the threshold for the 0% rate rise, meaning some middle-income savers could pay nothing on modest gains.
Those above roughly $600,000 in taxable income would face a 25% rate on long-term gains, up from 20%.
Short-term gains, already taxed as ordinary income, would remain unchanged.
Financial planners say the gap between holding periods becomes more valuable, not less.
Real estate investors are watching closely.
The 1031 exchange, which lets property owners defer gains by reinvesting, stays intact in the current draft.
But the step-up in basis at death, which wipes out unrealized gains for heirs, faces new limits above a $5 million exemption.
For family farms and small landlords, that's the provision generating the most calls to accountants.
Gains inside a 401(k) or IRA aren't taxed annually, so the rate change doesn't touch them.
The impact lands on taxable brokerage accounts, where millions of Americans hold individual stocks, ETFs, and mutual funds.
Tax law changes rarely apply retroactively, and the effective date in the draft is January 1, 2026.
Some advisors suggest accelerating gains into 2025 if you're near a threshold.
Others say the smarter move is simply holding longer and using tax-loss harvesting to offset what you owe.
The most overlooked detail: the 3.8% net investment income tax still applies on top of capital gains for high earners.
Add that to a 25% rate and the top effective burden approaches 28.8%.
That's a meaningful jump from today's 23.8%, and it changes the calculus on whether to sell a concentrated position or hold it for the next generation.
Markets have barely reacted, which suggests investors view the proposal as a starting bid rather than a done deal.
Historically, capital gains rate changes get negotiated down before passage.
The House and Senate versions will differ, and lobbying from the financial industry is already intense.
For now, the practical takeaway is simple.
Check your cost basis, review your holding periods, and talk to a tax professional before December.
The rules may not change, but the cost of being unprepared if they do is real. **Our take:** Tax policy is one of the few investing variables you can actually plan around, and this proposal rewards patience over reaction.
If you're years from selling, the noise matters less than your time horizon.
Final Thoughts
If you're close to a big exit, 2025 may be the year to have that conversation with your accountant.