Understanding Form 4868 – Extension of Time to File
Suppose you’re unable to file your U.S. tax return by the regular deadline, 15th April for Form 1040 or 1040NR American tax return filers living in the USA or 15th June for tax filers residing outside of the United States. In that case, you can request an automatic extension of time using Form 4868, which provides an additional six months to submit your 1040/1040NR Federal individual income tax return. However, this extension applies only to filing the return, not the payment of any taxes owed.
Certified Acceptance Agents (CAAs) simplify this process by verifying documents, completing applications accurately, and liaising with the IRS on your behalf on a timely basis.
Key Filing Deadlines 2024 American Tax Return
- April 15, 2025 – Standard tax filing deadline for most U.S. taxpayers residing in the United States as of 15th April or who have taxes due.
- June 15, 2025 – Automatic extension for U.S. citizens and resident aliens living abroad (including expats) residing outside of the United States as of 15th April 2025.
- October 15, 2025 – New filing deadline if Form 4868 is submitted by the appropriate due date 15th April.

Important Notes:
- Filing an extension does not extend your time to pay taxes owed.
- All payments for the tax year must be made by April 15 to avoid interest and late payment penalties.
- Form 4868 must be submitted before the due date to be valid.
How to File Form 4868
- Estimate your total tax liability for the year.
- Enter your information and estimated tax on Form 4868.
- Submit Form 4868 either electronically or by mail. If 4868 form is sent via postal mail. Please ensure you have postal proof of mailing for your file records.
- Pay any tax due before the original deadline to avoid penalties.
Final Thoughts
Form 4868 offers a straightforward solution if you need more time to file your tax return. For the American expats living abroad, this is especially helpful when coordinating international documents like their local country tax due information or awaiting an ITIN. However, it’s important to remember that any taxes owed must still be paid by April 15, regardless of whether you request an extension.
Working with a Certified Acceptance Agent (CAA), CPA or IRS Enrolled Agents ensures a seamless ITIN application process and 1040/1040NR tax compliance submission process smooth and hassle free. From verifying identity documents to resolving application issues, CAAs handle all aspects of the application efficiently and accurately. Whether you’re applying for a new ITIN or renewing an existing one, their expertise simplifies the process, saving you time and effort.
For assistance with ITIN applications, renewal services, or U.S. tax compliance, contact our team of experienced CAAs today.
We are one of the IRS Enrolled Agent with many years of experience in US 1040/1040NR personal tax compliance reporting and Fatca Compliance FBAR Reporting, We are happy to assist our clients in a timely, efficient, and cost-effective way.