View key data from their most recently filed tax return, including adjusted gross income.See digital copies of some IRS notices.View their tax owed and payment history and schedule payments.With an Online Account, individuals can also: Taxpayers and Individual Taxpayer Identification Number (ITIN) holders can now access their Online Account and view, approve and electronically sign power of attorney and tax information authorizations from their tax professional. Here's what's new and what to consider before filing next year. The Get ready page on IRS.gov outlines steps taxpayers can take now to make filing easier in 2024. This is the second in a series of reminders to help taxpayers get ready for the upcoming filing season. WASHINGTON - The Internal Revenue Service today urged taxpayers to take important actions now to help them file their 2023 federal income tax return next year.