Basis A method for determining capital gains and capital losses for tax purposes based on the total investment in an asset, including purchase price, commissions and other expenses. Home Resources Startup Law Dictionary Basis Return to Glossary Need legal help? Schedule a free consultation with a world-class startup attorney on LawTrades. LET'S CHAT Roy G. Business Attorney Heather N. Business Attorney Jared S. Business Attorney Tell us about your project We'll connect you with a vetted attorney in just a few minutes. Trusted by top companies like :