Dime vs Koinly

Dime is a free, open-source command-line tool that calculates United Kingdom cryptoasset taxes from a transaction spreadsheet. It accepts CSV data containing fields such as dates, operations, market values, assets, quantities, fees, and income, with receive, send, swap, and transfer operations. After processing, users can review figures for available tax years and see their current fiat balance. The format supports marking sent and received assets as non-fungible, including guidance for an NFT minted from multiple NFTs. Dime runs locally and stores transactions and computed figures in a SQLite database inside the user’s .dime folder. Installation documentation covers Composer, a PHAR archive, Docker, and an experimental standalone application. Composer and PHAR installations require PHP 8.2 and BCMath; Docker requires Docker and sh or Bash. The project targets people familiar with UK tax rules who want local processing.

Koinly calculates cryptocurrency taxes and helps users prepare tax reports. It imports exchange history through APIs or CSV files and connects blockchain wallets using public addresses; private keys are not required. Koinly says it auto-syncs from 1,000+ direct integrations and 7,200+ DeFi protocols, with unlimited CSV imports. It supports DeFi and NFT transactions, displays holdings, return on investment, and growth over time, and can show the potential impact of tax-loss harvesting. Reports include US Form 8949 and are available for 20+ countries. The free plan includes portfolio tracking and a preview of capital gains. Paid plans are purchased for specific tax years rather than as subscriptions: Newbie costs $49 a year per tax year, Hodler $99 a year per tax year, and Trader from $199 a year per tax year. Regular accounts support up to 100,000 transactions, with additional transactions purchasable in the app above the top-plan limit. Koinly lists web, Android, and iOS, with mobile apps identified as beta options.