TurboTax Online is a web-based tax preparation software that allows individuals to easily file their taxes from the comfort of their own home. With TurboTax Online, users can input their financial information, answer simple questions, and the software will automatically calculate their tax refund or amount owed. TurboTax Online also provides step-by-step guidance and support throughout the filing process to ensure accuracy and maximize deductions. Additionally, users can access their tax returns at any time and receive assistance from TurboTax experts if needed.