Estimated taxes help you stay current on your tax obligations when income isn’t fully covered by employer withholding. If you earn from self-employment, investments, or other non-wage sources, you may need to make quarterly payments to avoid penalties. You can pay by mail, online, or through automatic bank transfers, with flexibility in how and when you pay—so long as your payments meet each deadline. The rules include special thresholds and exceptions, and some taxpayers must also factor in additional Medicare and net investment income taxes. Understanding when and how to pay estimated taxes helps you stay penalty-free and financially on track.
