Clinton has proposed changing the capital gains tax rate structure from having a 1-year short/long-term cutoff between 39.6% and 23.8%* to a 6-year stepped rate that holds steady for the first two years and decreases after years two through 6. See this bar chart.
*Oversimplified. E.g. I left out the 3.8% surtax for the highest earners. Ordinary/qualified dividends are treated similarly to short/long-term gains, respectively. Lower-income taxpayers have different rates. A full explanation can be found here: Capital gains tax in the United States - Wikipedia
**This thread is about the effects of the proposed change vs the current tax rates, especially with respect to the stated, intended effects, described below.
This thread is not about whether capital gains should be taxed as ordinary income or not at all, about double taxation of profits, etc.
My understanding of Clinton’s reasons are as follows:
“Quarterly capitalism” is bad. Businesses care too much about short-term wall-street performance over longer term performance, which is more important for the economy as a whole. We see lots of stock buy-backs and dividend payments instead of reinvestment, which would be better for the U.S. Activist investors try to force changes, divestitures, etc. to make a quick buck. This rate adjustment would encourage longer-term investment and would free management from short-term performance pressure.
What will this new rate structure do? Most capital gains are realized before 6 years:
0-1 12%
1-2 35%
2-3 6%
3-4 5%
4-5 4%
5-6 3%
6+ 35%
CBO estimates that holdings would shift to 36% taxed at the highest rate in the first two years (even split between first and second years), and 49% held for 6+ years. I haven’t checked the methodology. But assuming that’s all correct, we should expect some elasticity. It’s not a huge change. Is it enough to affect management behavior? I don’t know. A lot of shareholders are tax-exempt, but I don’t know if they’re the sorts who push for short-termist behavior.
One of the WSJ opinion pieces below says the proposal will cause harm:
The Moneyweek piece suggests that stopping dividend payments to short-term investors might have a more profound effect. I’m not sure how that would be legislated.
I generally do not like laws with sharp cutoffs, be it time or income, so this gradual approach appeals to me simply for that reason. I think that whether the proposed change will have a large effect or not is dependent in large part on who the short-termists are. If they’re big tax-exempt organizations or people with retirement accounts, I don’t think this will do much. But my guess is those sorts of shareholders are more in it for the long-haul.
Background reading and others’ opinions:
http://www.wsj.com/articles/clinton-to-push-revamp-of-capital-gains-tax-rates-1437365173
http://www.wsj.com/articles/what-would-clintons-capital-gains-tax-mean-for-you-1437761670
http://www.wsj.com/articles/hillarys-capital-lock-in-1437948796
http://www.forbes.com/sites/dougschoen/2015/07/14/hillary-clinton-rolls-out-her-economic-platform/2/