Abstract: A system and method for managing tax consequences associated with financial market transactions. The tax management system comprises a platform access component hosted by a computer and accessible via a user input device. The tax management system allows a user to set aside and internally or externally transfer a determined amount of money related to the sale of an investment asset. The amount set aside may be determined by percentage or preset dollar amount. When an investor sells a stock or other security for a profit, a percentage of the profits representing the tax liability from the sale is moved a separate account. The tax management system allows the user to set aside a percentage of profits, cash amount per transaction, percentage of total sale, or percentage of a portion of each sale automatically to a separate account administered by the tax management system.