The Simple Math Behind Your Break-Even
Total Cost = (Shares × Buy Price) + Buy Fee + Sell Fee
Break-Even Price = Total Cost ÷ Shares
That’s it. The break-even price is the minimum price your stock must reach when you sell to avoid losing money—after accounting for both entry and exit trading commissions.
Real-World Example: How Trading Fees Impact Your Break-Even
Let’s say you buy a stock at $45.00 per share, and your round-trip fees (buy + sell) total $13.90. Here’s how different trade sizes affect your break-even:
| Shares Purchased | Raw Stock Cost | Roundtrip Fees | Total Cost | Break-Even Price | Required Price Gain |
|---|---|---|---|---|---|
| 20 Shares | $900.00 | $13.90 | $913.90 | $45.70 / share | +1.55% |
| 50 Shares | $2,250.00 | $13.90 | $2,263.90 | $45.28 / share | +0.62% |
| 200 Shares | $9,000.00 | $13.90 | $9,013.90 | $45.07 / share | +0.15% |
The takeaway? Trading fees hit smaller trades much harder. With just 20 shares, you need a 1.55% price increase just to break even. With 200 shares, that same fee is spread out, requiring only a 0.15% gain.
How to Use This Calculator
Getting your exact break-even price is quick and straightforward:
- Pick your currency from the selector in the site header.
- Enter the number of shares you’re buying (e.g., 200).
- Enter your purchase price per share (e.g., $45.00).
- Enter your buy commission fee — what you pay to enter the trade.
- Enter your projected sell commission fee — what you’ll pay to exit.
- View your results instantly — total purchase cost, required break-even sell price, and the minimum percentage gain needed.
Who Benefits From This Calculator?
This stock trading tool is perfect for:
- Stock traders — knowing your break-even before entering any trade
- Investors — understanding the true cost of trading
- Anyone — comparing the impact of fees across different trade sizes
- New traders — learning how commissions affect profitability
Common Questions About Stock Break-Even Prices
Why do trading commissions affect my break-even price?
Both buy and sell commissions increase your net cost basis. Since you paid more than just the share price, you need the stock to rise slightly above your purchase price to cover those fees and break even.
How does share volume impact the percentage gain I need?
Smaller trades — fixed fees are a larger percentage of your total cost, so you need a higher percentage gain to break even.
Larger trades — fixed fees are spread across more shares, so the required percentage gain is lower.
Are commission-free platforms truly free?
Many brokers offer $0 commissions on stock trades. However, some fees like SEC transaction fees, FINRA TAF fees, or exchange fees may still apply—especially on sell orders.
How do bid-ask spreads affect my break-even?
When you buy, you typically pay the ask price. When you sell, you typically receive the bid price. The spread between them creates immediate slippage—your break-even price needs to account for both the spread and the fees.
Can dividends lower my break-even price?
Yes! Any cash dividends you receive while holding the stock reduce your effective cost basis. The more dividends you collect, the lower your break-even selling price becomes.
What’s the exact formula used?
Break-Even Price = [(Shares × Buy Price) + Entry Fee + Exit Fee] ÷ Shares
Simple, clear, and precise.
💡 Quick Tip: Always calculate your break-even before entering a trade. Knowing the minimum price you need to hit helps you set realistic profit targets and avoid holding a trade that’s underwater just to cover fees.