Capital Gains Calculator

Track all your investment transactions and calculate realized capital gains using FIFO or LIFO methods. Filter by year, see short-term vs long-term gains, and export everything as CSV for your tax filing.

About tax tools

The tax calculator matches your sell transactions against buy lots using FIFO (First In First Out) or LIFO (Last In First Out) to determine cost basis and capital gains.

FIFO and LIFO capital gains calculation
Short-term (<1 year) vs long-term (>1 year) gain classification
Transaction recording (buy, sell, reward, deposit, withdraw)
Link transactions to portfolio positions
Yearly filter and summary
CSV export for gains report and full transaction history

100% free. No signup. No data collected or sent anywhere.