Key Takeaways
- U.S. citizens/residents abroad on April 15 automatically get until June 15 to file
- No form needed — the 2-month extension is automatic based on your location
- Interest on unpaid taxes still accrues from April 15 — this is NOT an extension to pay
- Estimate and pay any taxes owed by April 15 to avoid interest charges
- Can combine with Form 4868 for an additional extension to October 15
Who Qualifies for the Automatic Extension
If you are a U.S. citizen or resident alien living or working outside the United States and Puerto Rico on April 15, you automatically receive an extra two months to file your return — moving the deadline to June 15. No form or application is required; the extension is automatic based on your physical location.
The Critical Catch: Extension to File, Not to Pay
While you get extra time to file, the extension does not extend your time to pay. If you owe taxes, interest begins accruing from April 15 — even though your filing deadline is June 15. This is a common misconception that costs many expatriates unnecessary interest charges.
The smart approach is: even if you cannot complete your full return by April 15, estimate your tax liability and make a payment by April 15 to minimize interest. Then file your complete return by June 15 (or request an additional extension to October 15 using Form 4868).
Combining Extensions
The automatic 2-month extension can be combined with a further extension. By filing Form 4868 by June 15, you can extend your filing deadline to October 15. In some cases, taxpayers abroad can even request an additional extension to December 15 by writing to the IRS. However, interest on any unpaid tax always runs from April 15 regardless of extensions.
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