Understanding the difference between IRS 1040-NR and IRS 1040-SS

Last updated on Dec 8, 2025

What is IRS 1040-NR?

The IRS 1040-NR is a tax form designed for non-resident aliens. It is primarily used by foreign individuals who earn income in the United States and need to report their earnings to the IRS. This form helps the IRS assess the appropriate tax obligations of non-resident aliens.

The purpose of the IRS 1040-NR is to provide a straightforward method for non-residents to file their taxes accurately and legally. By using this form, individuals communicate their income sources and calculate their liability under U.S. tax law.

1.

You may need IRS 1040-NR if:
2.

You are a non-resident alien engaged in trade or business in the U.S.
3.

You received income from U.S. sources that is not effectively connected with a U.S. trade or business.
4.

You are a foreign student or scholar who meets certain conditions.

Who needs to complete a IRS 1040-NR?

1.

Typically required for:
2.

Non-resident aliens who earn income in the United States.
3.

Foreign investors who derive income from U.S. properties.
4.

Students and scholars on specific visas who derive income from U.S. sources.
5.

Foreign athletes or entertainers performing in the U.S.

When is IRS 1040-NR due?

The due date for filing the IRS 1040-NR is typically April 15 following the tax year. However, if you are a non-resident alien and did not receive wages subject to U.S. income tax withholding, your due date extends to June 15. If you file for an extension, be sure to complete your filing by October 15, if applicable.

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What is IRS 1040-SS?

The IRS 1040-SS is a tax form meant for residents of U.S. territories, including Puerto Rico, Guam, the U.S. Virgin Islands, and American Samoa. This form is specifically designed for income earned by individuals in these regions, allowing them to report their income and calculate their tax liability.

Its primary purpose is to ensure individuals living in U.S. territories can file their taxes accurately, considering their unique circumstances and different tax laws that apply to those regions.

1.

You may need IRS 1040-SS if:
2.

You are a bona fide resident of Puerto Rico and do not have to file Form 1040.
3.

Your income is sourced solely within U.S. territories.
4.

You work for an employer who does not withhold federal taxes from your income.

Who needs to complete a IRS 1040-SS?

1.

Typically required for:
2.

Bona fide residents of Puerto Rico earning income solely from territorial sources.
3.

Individuals who do not meet the income threshold for filing a regular 1040.
4.

Residents of Guam, the U.S. Virgin Islands, or American Samoa having similar income conditions.
5.

Those who are subject to specific tax treaties affecting their tax responsibilities.

When is IRS 1040-SS due?

The filing deadline for the IRS 1040-SS is similar to the IRS 1040-NR, which is generally April 15 for the previous tax year. If extension procedures are followed, the extension may apply similarly to the 1040-NR deadlines as well.

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Key differences between IRS 1040-NR and IRS 1040-SS

1.

Main differences include:
2.

IRS 1040-NR is for non-resident aliens, while IRS 1040-SS is for residents of U.S. territories.
3.

IRS 1040-NR is used primarily for those working in the U.S.; IRS 1040-SS offers provisions for those earning within their territories.
4.

The relevant due dates overlap, but their eligibility factors differ significantly.
5.

IRS 1040-NR is more focused on the global income from U.S. sources, whereas IRS 1040-SS focuses exclusively on income earned in specific territories.

Understanding potential penalties

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Author:

by Iryna Marchuk

Lead Writer/Blogs Manager at airSlate

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