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How Much Should I Send In With My Extension?

  • Writer: NaviraTax
    NaviraTax
  • Sep 9, 2025
  • 2 min read

Title: How Much Should I Send In With My Extension?

When tax season approaches, many people feel unsure about extensions. It’s common to wonder exactly how much money should be submitted when filing an extension with the IRS.

If you ask this question, you’re not alone. The need to file an extension doesn’t mean you get more time to pay your taxes. Instead, it only gives you extra time to file your tax return forms. The IRS expects an estimated payment of any taxes owed at the time you file for the extension. Knowing your estimate can help you avoid unnecessary stress or penalties.

Filing an extension requires you to estimate your total tax liability for the year. This may sound daunting if your financial situation has changed or you lack all the relevant documents. The IRS asks for your best estimate, not a perfect calculation. Reviewing your prior year’s return, considering any changes in income, and making reasonable adjustments provides a solid starting point. Documentation is not required right away; simply use what you know so far.

It’s perfectly acceptable if your estimate is less than exact. The IRS asks for a reasonable attempt using what you know at the deadline. If you end up owing more, you may face some penalties or interest, but honest estimating offers some protection if you’re later audited.

If you send in less than your total amount owed with your extension, keep in mind that interest and possible penalties can accrue on the unpaid portion. These usually aren’t severe if you’ve made a genuine effort to estimate and pay on time. Paying what you can by the deadline reduces possible charges.

At this point, it’s common to wonder if there are concrete answers about how much to pay. The facts suggest that sending in as much as you reasonably believe you owe, based on last year’s return and your current information, gives you the best chance of avoiding unnecessary costs.

By clarifying your estimated tax payment when filing for an extension, you can move forward with more confidence. While uncertainty is part of the process, giving it your best effort can help minimize complications and keep you on track.

 
 
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