1. Tax Deferral

Tax deferral works like an interest-free loan from the government. When you hold an investment instead of selling and paying tax, you’re effectively keeping the government’s share of your gains invested. That untaxed portion compounds alongside your own money, earning returns on the government’s dollar as well as yours. When you eventually sell, you repay the “loan” by paying the deferred tax—but you keep all the growth that accrued on that borrowed portion. That extra performance is the real value of tax deferral.

2. Tax Loss Harvesting

When you sell an investment for less than you paid, that loss becomes a realized capital loss. Those losses can offset capital gains without limit in the same tax year, directly reducing the tax owed on your profitable positions. If your total losses exceed your total gains, you can apply up to $3,000 of the excess against ordinary income in that year. Any unused amount isn’t lost — it carries forward indefinitely until it’s applied against future gains or income. There’s no limit on how much you can harvest, only on how much you can use each year when you have no gains to offset.