For some, the new tax season might serve as a stressful reminder of past taxes that have yet to be filed and paid. Taxpayers owed over $120 billion in back taxes, penalties and interest in 2022, according to the IRS. And there soon may be more concrete reminders coming: T he IRS resumed sending automated collection notices for unpaid taxes in 2024 after pausing them “due to the unprecedented effects of the COVID-19 pandemic” in February 2022.