Koinly

Koinly is an accounting and tax reporting software for cryptocurrency investors, hobbyists and accountants. With over 700 integrations, Koinly supports over 400 Exchanges, 100 Wallets and over 170 Blockchains. Koinly aims to make tax reporting easier, reliable and accurate. The user connects exchange accounts / public addresses, and Koinly will calculate capital gains, then generate a tax report for next year. The final report is accepted by tax agencies and can be printed & filed. Additionally, Koinly can:

Tracks crypto assets & taxes
Shows total holdings and portfolio growth over time - across all wallets and accounts - along with tax liabilities.

Cryptocurrency tax reports
Creates a preview of capital gains and taxes for free, and generates tax documents.

Helps to fix issues with transactions
Helps users avoid generating inaccurate tax reports.