
As the new year begins, many Americans who receive non-payroll income will need to meet an IRS quarterly estimated tax obligation. This applies to any income that has not been subject to automatic federal withholding at the time of receipt. Self-employed earnings, investment income, and side incomes are all included in this obligation.
Your next instalment for the 2025 tax year must be paid by 15 January. Failure to do so can lead to hefty penalties and interest charges. While missing the deadline might result in a refund when you file your annual return, in some cases, individuals who neglect to make their payment could find themselves facing substantial additional costs.