About

In the world of high-frequency trading and long-term investing alike, friction costs are the silent killers of wealth. A nominal gain on a stock or cryptocurrency position can easily turn into a net loss once platform fees, spread costs, regulatory fees (like SEC fees), and capital gains taxes are subtracted.

This calculator provides a reality check for your trades. It is essential for traders who need to understand their "Breakeven Price"—the price an asset must reach just to cover the costs of entering and exiting the position. By aggregating fixed commissions and percentage-based fees, this tool reveals the true efficiency of your investment strategy across different brokerage platforms.

Formulas

The Net Profit is calculated by subtracting the total Cost Basis (including buying fees) from the Total Proceeds (after selling fees and taxes).

Profit_net = (P_sell × Q − F_sell) − (P_buy × Q + F_buy) − Tax

The Return on Investment (ROI) is expressed as:

ROI = Profit_netTotal Investment × 100%

Reference Data

Broker / Exchange	Asset Class	Maker/Taker Fee (%)	Fixed Commission	Minimum Fee
Interactive Brokers (Pro)	Stocks (US)	-	$0.0035 / share	$0.35
Robinhood	Stocks / Crypto	0%	$0	$0
Coinbase (Standard)	Crypto	~1.49%	-	$0.99 - $2.99
Binance	Crypto	0.10%	-	-
eToro	Stocks	0%	Spread only	-
TD Ameritrade	Stocks	-	$0 (Online)	-
Kraken	Crypto	0.16% / 0.26%	-	-
Charles Schwab	Stocks	-	$0	-
Fidelity	Stocks	-	$0	-
Tastytrade	Options	-	$1.00 / contract	-
Bitfinex	Crypto	0.10% / 0.20%	-	-

Frequently Asked Questions

Maker fees apply when you add liquidity to the order book (e.g., placing a limit order that doesn't fill immediately). Taker fees apply when you remove liquidity (e.g., a market order). Taker fees are usually higher.

Spread costs (the difference between Buy and Sell prices at a single moment) are not explicitly entered as a fee, but they are accounted for if you enter your actual execution price rather than the mid-market price.

This tool estimates tax based on the percentage rate you provide. In reality, short-term capital gains (assets held <1 year) are often taxed as ordinary income, while long-term gains have lower preferential rates.

This is likely due to fees. If the asset price increase is smaller than the combined percentage of buying fees, selling fees, and regulatory costs, you will still lose money on the trade.

The breakeven price is the price at which you must sell your asset to cover the purchase price plus all associated buying and selling fees, resulting in exactly $0 profit.