Safe and convenient tool. The IRS has launched an online tool that lets taxpayers see their account balance, including what they owe as well as any penalties and interest. The agency said the app is designed to safely and conveniently help taxpayers with basic account information. “The new ‘balance due’ feature, paired with the existing online payment options, will increase the availability of self-service interactions with the IRS,” said IRS Commissioner John Koskinen. (IR 2016-155)