A tax history report from the IRS provides a detailed overview of your tax records, including all filed returns, payments made, outstanding balances, penalties, and interest accrued over time. This report gives you a comprehensive look at your tax obligations, showing any discrepancies, adjustments, or unresolved issues with the IRS. It also includes information about your account status, such as whether you have any liens, levies, or audits in progress. Reviewing your tax history report helps you understand your current tax position, identify potential areas for resolution, and ensure that your records are accurate and up-to-date, providing you with the necessary information to address any outstanding tax matters.