Why Taxes Matter
Two investors both make 10% per year for 30 years on $10,000:
- Investor A trades constantly, paying short-term gains taxes every year → ends with about $87,000
- Investor B buys and holds → ends with about $174,000
Same returns. Same starting amount. Taxes alone created a 2x difference.
The Three Types of Investment Income (US)
| Type | When You Owe | Tax Rate (typical) |
|---|---|---|
| Ordinary dividends | When paid out | Your income tax bracket |
| Qualified dividends | When paid out | 0% / 15% / 20% |
| Short-term capital gains | When you sell within 1 year | Your income tax bracket |
| Long-term capital gains | When you sell after 1+ year | 0% / 15% / 20% |
The lesson is simple: hold for over a year whenever you can, and you cut your tax bill dramatically.
Tax-Advantaged Accounts
The US gives you legal ways to skip or defer investment taxes entirely. Use them in this order:
- 401(k) match — free money from your employer, take it first
- Roth IRA — pay tax now, withdraw tax-free in retirement (great if you're young)
- Traditional 401(k) / IRA — tax deduction now, pay tax later
- HSA (Health Savings Account) — triple tax-advantaged if you have a qualifying health plan
- Taxable brokerage — no special perks, but no contribution limits
Most people should max #1 and #2 before doing anything else.
Tax-Loss Harvesting
If an investment in a taxable account is down, you can sell it to "harvest" the loss. That loss offsets other gains and up to $3,000 of regular income per year. The unused portion carries forward.
You can buy a similar (but not "substantially identical") investment immediately to keep your exposure. Watch out for the wash-sale rule: rebuying the same security within 30 days disallows the loss.
The IRS doesn't reward day-trading. It rewards patience — which, conveniently, is also what builds the most wealth.
This is general education, not tax advice. Rules differ by country and personal situation. Consult a tax professional.