Question 1

How is stock profit calculated?

Accepted Answer

Stock profit is your total sell proceeds minus your total cost, including any fees on both sides of the trade. The formula: (sell price × shares − sell-side fees) − (buy price × shares + buy-side fees). If you bought 100 shares at $50 and sold at $75 with no fees, that's $7,500 − $5,000 = $2,500 profit. Profit is a dollar amount; pair it with return percentage to judge whether the trade was actually a good use of capital, especially when comparing trades of different sizes.

Question 2

How do I calculate profit or loss on a stock sale?

Accepted Answer

Subtract total cost from total sale proceeds. Total cost = shares × buy price + buy-side fees. Total proceeds = shares × sell price − sell-side fees. Positive result is profit, negative is loss. For partial sales, prorate: if you sold 50 of 100 shares, use only the 50-share cost basis. Brokers report this automatically on Form 1099-B for taxable accounts, but running the math yourself before selling helps you plan around tax lots, holding periods, and offsetting gains against losses.

Question 3

Do I pay tax on stock profit even if I don't sell?

Accepted Answer

No — in the US, capital gains tax is triggered only when you actually sell (or otherwise dispose of) a position. Paper profits on shares you're still holding are unrealized and untaxed, no matter how large they've grown. The exceptions are dividends (taxed in the year received) and specific instruments like certain futures and MTM-elected trader accounts. For long-term investors, this deferral is one of the most powerful features of the tax code — it lets winners compound tax-free until sale.

Question 4

What's the difference between realized and unrealized profit?

Accepted Answer

Realized profit is locked in — you sold the position and the cash is in your account. Unrealized profit is the paper gain on a position you still hold; it can grow further, shrink, or fully disappear before you sell. Only realized profit is taxable in a standard brokerage account. Investors often confuse the two, feeling wealthy on unrealized gains and then surprised when a pullback erases them without ever having created a tax liability.

Question 5

How do capital gains taxes work on stock profits?

Accepted Answer

In the US, profits on positions held less than one year are taxed as short-term capital gains at your ordinary income rate (10–37%). Profits on positions held over a year qualify for long-term rates (0%, 15%, or 20% depending on income). State taxes may apply on top. That difference can easily be 15–20 percentage points, which is why long-term holding is often more valuable than 'trading around' a position. Tax-advantaged accounts (401(k), IRA, Roth IRA) defer or eliminate the tax entirely.

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