Earnings Tracker is a free accounting / bookkeeping software tool for contractors and freelancers. It enables invoice amounts, salaries, pension contributions, and expenses to be recorded, and calculates the amount of corporation (business) tax due. It also calculates dividend payments for shareholders, and enables dividend tax vouchers to be generated. Written in PHP and MySQL, Earnings Tracker can be downloaded and installed on a web server, or a preinstalled online version can be used. There is also the option to buy Earnings Tracker preinstalled on a USB memory stick. A small charge is made for this version to cover the cost of the memory stick itself, and package and postage. The software also handles multiple users.