Crypto Capital Gains Calculator
Calculate gains, holding period, and returns for your cryptocurrency transactions with live price autofill and currency conversion, all client-side.
Introduction
Welcome to the Crypto Capital Gains Calculator by Mama Calculator! Our free, client-side tool helps you estimate cryptocurrency transaction outcomes with ease and privacy. Input the cryptocurrency, quantity, buy/sell prices, and dates to compute gains, losses, holding period, and annualized returns, with real-time price autofill and currency conversion powered by CoinGecko. All calculations are performed in your browser, ensuring data security.
Cryptocurrency taxes can be complex, but our tool simplifies the process by providing key metrics like cost basis, proceeds, and capital gains. Whether you're trading Bitcoin, Ethereum, or other cryptocurrencies, our calculator offers actionable insights. Export your calculation history as a CSV file for record-keeping or tax reporting. Designed for global users, this tool helps you understand short-term and long-term capital gains, which may impact tax obligations depending on your jurisdiction (e.g., in the US, short-term gains ≤ 1 year are taxed as ordinary income, long-term > 1 year may have lower rates). Start using our calculator today to manage your crypto finances!
Data provided by CoinGecko
Understanding Your Crypto Gains
This tool helps clarify the financial outcome of a crypto transaction. Key terms include:
- Cost Basis: Total acquisition cost (Buy Price × Quantity + Buy Fees).
- Proceeds: Total sale value (Sell Price × Quantity - Sell Fees).
- Capital Gains/Loss: Proceeds minus Cost Basis.
- Holding Period: Time between buy and sell dates, affecting tax rates (short-term ≤ 1 year, long-term > 1 year).
- Annualized Return: Percentage return adjusted for holding period.
Calculations are estimates and do not account for specific tax rates, which vary by jurisdiction. Consult a tax professional for precise tax obligations.
Frequently Asked Questions
What is a "taxable event"?
A taxable event in crypto includes selling for fiat, trading for another crypto, or buying goods/services.
Is my data private?
Yes. This is a client-side tool. All calculations happen in your browser, and no data is sent to our server.
How are short-term and long-term gains taxed?
Short-term gains (held ≤ 1 year) are typically taxed as ordinary income, while long-term gains (held > 1 year) may have lower tax rates, depending on your jurisdiction.
How does currency conversion work?
Real-time prices are fetched from CoinGecko's API to convert your input currency (e.g., BTC) to a base currency (USD) for calculations, then displayed in your chosen output currency (e.g., EUR).
How does autofill work?
Buy and sell prices are automatically populated with live prices from CoinGecko's API based on your selected cryptocurrency and input currency, updated when you change selections.
Disclaimer
The Crypto Capital Gains Calculator provided by Mama Calculator is intended for educational and informational purposes only. It is not a substitute for professional financial, tax, or legal advice. Calculations are estimates based on your inputs and do not account for specific tax laws, regulations, or rates, which vary by jurisdiction. Cryptocurrency transactions can be complex, and tax obligations may depend on factors such as your country, residency, transaction type, and local regulations. Real-time price data and currency conversion are provided by CoinGecko and may be subject to API rate limits or temporary inaccuracies. We strongly recommend consulting a qualified tax professional or financial advisor to ensure compliance with applicable laws and accurate reporting of your cryptocurrency transactions. Mama Calculator and xAI are not responsible for any financial decisions or tax liabilities resulting from the use of this tool.
About This Calculator
Built by xAI, this Crypto Capital Gains Calculator provides a simple way to estimate gains and returns for educational purposes, with real-time price autofill and currency conversion powered by CoinGecko. For precise tax planning, consult a financial advisor or tax professional.