Maximizing Stock Profits: The Hidden Math of Trading
"Amateurs focus on the stock price; professionals focus on the cost-basis after taxes and commissions."
Break-Even Analysis
A stock price of $150 and a sell price of $150并不意味着你收支平衡。If you paid a $5 commission to buy and will pay another $5 to sell, your true **Break-Even Price** is actually higher. Our tool calculates this instantly, ensuring you don't sell for a 'surface' profit that is actually a 'net' loss.
Capital Gains Tax Overview
USA (Short vs Long)
Holding for 12+ months lowers your tax rate from standard income brackets to a special 0%, 15%, or 20% rate.
UK (Gains Allowance)
The UK provides an annual tax-free allowance. Above that, you pay 10% (Basic rate) or 20% (Higher rate) on equity gains.
Trading FAQ
What is ROI vs Profit?
Profit is the absolute dollar amount you've made. ROI (Return on Investment) is the efficiency percentage. An ROI of 30% is better than $100 profit on a $10k investment.
Do I pay tax if the broker is zero-commission?
Yes. Zero-commission only eliminates the *transaction fee*. You still owe Capital Gains Tax to the IRS, HMRC, or your local tax bureau based on your profits.