New USPS postmark rule: Why your 'on-time' tax return could be late

Dropping your return in a mailbox isn't enough in 2026. Learn why a missing postmark could trigger "failure to file" ...
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Here’s how much you could owe if you file your tax return late this April

Missing the April 15 tax deadline can get expensive quickly. The IRS charges separate penalties for filing late and paying late, and they can stack. Add interest to the mix, and what starts as a ...

What happens if you file your taxes late?

The extension form is known as "Form 4869, Application for Automatic Extension of Time to File U.S. Individual Income Tax ...