Sell a stock you've held for years and the government wants its cut.
How big that cut is depends on something most investors rarely think about until April: how long they held the asset, and how much they earn.
For 2024 tax returns filed in 2025, the long-term capital gains rates stand at 0%, 15%, and 20%.
The 0% bracket isn't a myth reserved for the wealthy's accountants.
It applies to single filers with taxable income up to $47,025 and married couples filing jointly up to $94,050.
Above those thresholds, the 15% rate kicks in, and the top 20% rate hits single filers past $518,900 and couples past $583,750.
Here's the wrinkle that trips people up: those income thresholds are based on taxable income, not your salary.
A household earning six figures can still land in the 0% bracket after deductions and retirement contributions shrink the number the IRS actually taxes.
That gap between what you earn and what you're taxed on is where smart planning lives.
Short-term gains are a different animal entirely.
Sell an asset held one year or less and the profit gets taxed as ordinary income, meaning rates can climb as high as 37% depending on your bracket.
That single extra day of holding can mean the difference between paying 15% and paying nearly double.
It's why tax-savvy investors mark their calendars around the one-year anniversary of every purchase.
There's also the Net Investment Income Tax, a 3.8% surtax that applies to single filers with modified adjusted gross income above $200,000 and couples above $250,000.
It stacks on top of the standard capital gains rate, quietly pushing the effective top rate closer to 23.8% for high earners.
Many investors don't discover this until their accountant delivers the news.
A few strategies keep showing up in conversations with financial planners.
Tax-loss harvesting lets you sell losing positions to offset gains elsewhere in your portfolio.
Holding assets for at least a year converts short-term pain into long-term rates.
And for retirees or those in low-income years, the 0% bracket becomes a genuine window to sell appreciated assets without owing federal tax on the gain.
One detail worth flagging: these brackets are tied to inflation and get adjusted most years, but the underlying structure hasn't changed dramatically in decades.
Proposals to raise rates on top earners surface periodically in Washington, but nothing has cleared Congress recently.
Anyone making decisions based on what might happen should weigh the certainty of today's rules against the speculation of tomorrow's.
The takeaway for ordinary investors isn't glamorous.
It's a calendar reminder, a look at your income for the year, and a willingness to think about taxes before you click sell rather than after.
The difference between a 0% and a 20% rate on the same trade is rarely about luck.
It's about timing, and the paperwork most people ignore until it's too late to change anything. **Our take:** Capital gains rules reward patience and punish improvisation, which is backward from how most Americans actually invest.
If you're sitting on a winner, the holding period matters more than the headline rate.
Final Thoughts
Treat the one-year mark like a deadline worth respecting.