ITIN Tax Return 2026: How to File Form 1040-NR as a Non-Resident

Updated April 2026

Written by

itin.so Editorial Team

IRS-Authorized Certifying Acceptance Agents

Filing US Taxes with ITIN: Form 1040-NR Guide 2026 — itin.so guide

Short answer: Non-residents with US-source income file Form 1040-NR. Place your ITIN in the SSN field. Report only US-source income (ECI taxed at 10%-37% graduated rates, FDAP at flat 30% unless a treaty reduces it). The US has tax treaties with 60+ countries. April 15 deadline (June 15 for non-residents abroad with no US wages). File to claim refunds of over-withheld taxes and keep your ITIN active under Rev Proc 2015-35's 3-year non-use rule.

Non-residents with US-source income file their federal tax return on Form 1040-NR, placing their ITIN in the Social Security Number field. Only US-source income is reported, with effectively connected income taxed at graduated rates and FDAP income taxed at a flat 30 percent unless a tax treaty reduces it. This guide explains when you need to file, how Form 1040-NR is structured, and the difference between ECI and FDAP income. It also covers treaty benefits, available deductions, filing deadlines, a step-by-step walkthrough, and the common mistakes that lead to rejections or a higher tax bill.

When Do You Need to File a US Tax Return with an ITIN?

6 situations require ITIN holders to file Form 1040-NR.

US wages or salary from a US employer, even with taxes withheld at source
Rental income from US real estate property
US LLC ownership requiring Form 5472 and pro-forma Form 1120
Dividends, interest, or royalties from US sources subject to withholding
Capital gains from selling US property or investments
Refund claim for over-withheld taxes during the year

Even without required filing, submitting a return keeps your ITIN active. ITINs expire after 3 consecutive years of non-use per Rev Proc 2015-35. If you do not have one yet, start your ITIN application before you file. For ITIN uses beyond tax filing, see what you can do with an ITIN.

What Is Form 1040-NR and How Does It Work?

Form 1040-NR is the federal return for non-resident aliens. It is now a single-page form with supporting schedules. 6 main sections cover your filing.

Section	What It Covers
Filing Status	Residency classification; ITIN in SSN field
Income	US-source effectively connected income only
Adjustments	Educator expenses, student loan interest, IRA deductions (limited)
Tax & Credits	Tax computation, credits, treaty claim amounts
Payments	Withholding paid, estimated tax payments
Refund/Amount Owed	Whether you get money back or owe more

You also need Schedule OI (Other Information) for visa type, days in US, and treaty claims. Schedule A for itemized deductions. Schedule C for business income. The specific schedules depend on your income types. For W-7 form details, see our W-7 guide.

What Income Do You Report on Form 1040-NR?

Non-residents report only US-source income, split into 2 categories with different tax rates.

Effectively Connected Income (ECI)

Income connected to a US trade or business: wages, salary, self-employment income, US LLC profits, rental income (if elected as ECI). Taxed at graduated rates: 10%, 12%, 22%, 24%, 32%, 35%, 37%. Deductions allowed against ECI.

FDAP Income (Fixed, Determinable, Annual, Periodical)

Passive income: dividends, interest, royalties, rents (if not ECI), pensions. Default flat 30% tax rate. Tax treaties often reduce to 15%, 10%, 5%, or 0% depending on country and income type. Usually withheld at source by the payer.

Common ITIN holder income: freelance income from US clients, Amazon/e-commerce revenue through a US LLC, rental income from US property, US stock dividends, US bank interest. For LLC-specific filing, see ITIN for LLC owners.

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How Do Tax Treaty Benefits Work for ITIN Holders?

The US has income tax treaties with 60+ countries. These treaties reduce or eliminate US tax on certain income types. 5 income categories commonly qualify.

Dividends: Default 30% often reduced to 15%, 10%, or 0% depending on country
Interest: Many treaties reduce or eliminate the 30% withholding
Royalties: Software, patent, copyright royalties at reduced rates
Business profits: Some treaties exempt profits without a US permanent establishment
Personal services: Independent services may be exempt if under specified days in the US

Claim treaty benefits on Schedule OI. Cite the specific treaty article. File Form W-8BEN with payers. If tax was withheld at 30% but a treaty entitles you to less, claim the refund on your 1040-NR. For treaty-based ITIN applications without a tax return, see ITIN without tax return guide.

What Deductions Can Non-Resident Filers Claim?

Non-residents have limited but meaningful deduction options. All deductions must connect to effectively connected income.

No standard deduction for most non-residents

Unlike the $14,600 standard deduction for single US residents, non-residents must itemize on Schedule A. Exception: students and apprentices from India may claim the standard deduction under the US-India treaty.

State and local taxes: State income taxes paid, capped at $10,000 (SALT)
Charitable contributions: Donations to qualifying US charities only
Business expenses: Ordinary and necessary expenses on Schedule C
Rental expenses: Mortgage interest, property taxes, insurance, depreciation
Student loan interest: Up to $2,500 if qualifying

For cost details, see ITIN cost guide.

What Are the Filing Deadlines for Form 1040-NR in 2026?

3 deadline scenarios exist depending on your income type and location.

Situation	Deadline	Extension
US wages with withholding	April 15	October 15 (Form 4868)
No US wages, living abroad	June 15 (automatic)	December 15 (Form 4868)
US LLC owner (Form 5472)	April 15	October 15 (Form 7004)

Extensions give more time to file, not more time to pay. Interest accrues from April 15 on unpaid tax. Failure-to-file penalty: 5% per month up to 25%. Failure-to-pay: 0.5% per month. Source: IRS.gov, "Instructions for Form 1040-NR."

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How Do You File Form 1040-NR Step by Step?

5 steps complete your non-resident filing.

Step 1: Gather Your Documents

W-2 (wages), 1099-NEC/MISC (freelance), 1099-DIV (dividends), 1099-INT (interest), 1042-S (non-resident withholding). You need your ITIN, passport info, and country of tax residence details.

Step 2: Determine Your Filing Status

Most non-residents file as single or married filing separately. Joint filing requires a Section 6013(g) election. Determine which treaty articles and reduced rates apply to your income.

Step 3: Complete Form 1040-NR

ITIN in SSN field. Foreign address. Report income on appropriate lines. Attach Schedule OI with visa type, days in US, and treaty claims. Schedule A for itemized deductions. Tax tables for computation.

Step 4: Report Tax Payments

Enter federal tax withheld from W-2, 1042-S, and 1099 forms. Include estimated tax payments. This section determines your refund or amount owed.

Step 5: Submit Your Return

E-file via Sprintax ($50-$150), Glacier Tax Prep, or through a CPA ($300-$800). Paper filing to IRS Austin, TX. If you need an ITIN simultaneously, attach Form W-7 and identity documents. See ITIN tax return parent guide.

What Are the Most Common Filing Mistakes to Avoid?

7 errors cause rejections or incorrect tax calculations.

Using Form 1040 instead of 1040-NR. Reporting worldwide income instead of US-source only. Claiming the standard deduction (not allowed for most non-residents). Forgetting Schedule OI. Missing the deadline because you assumed the June 15 extension applied when you received US wages. Not claiming treaty benefits you qualify for. Filing with an expired ITIN without attaching a renewal. Each mistake increases your tax bill or triggers IRS correspondence.

Ensure your ITIN is active before filing. If expired, see our ITIN renewal guide. For ITIN application mistakes, see our dedicated guide. For business owner filing, check our guide. For international student filing, see our student guide.

ITIN Tax Return and Form 1040-NR: Frequently Asked Questions

Can I file a US tax return with just an ITIN in 2026?

Yes. An ITIN is specifically designed for individuals who need to file a US tax return but cannot get an SSN. Place your ITIN in the SSN field on Form 1040-NR. The IRS processes your return identically. You can claim tax treaty benefits, request refunds of over-withheld taxes, and fulfill all federal filing obligations with an ITIN.

What is the difference between Form 1040 and Form 1040-NR?

Form 1040 is for US citizens and resident aliens reporting worldwide income. Form 1040-NR is for non-resident aliens reporting only US-source income. Non-residents cannot use Form 1040 unless they meet the substantial presence test or make a special election. If you hold an ITIN and live outside the US, you need Form 1040-NR.

Do I need to file a US tax return if I had no US income?

In most cases, no. But if you own a US LLC, you must file Form 5472 and a pro-forma Form 1120 regardless of income. Also, filing a return keeps your ITIN active since ITINs expire after 3 consecutive years of non-use per Rev Proc 2015-35. Even a zero-income return resets the clock.

Can I claim a tax refund using Form 1040-NR?

Yes. If taxes were withheld at the default 30% rate on dividends, interest, or royalties, but a treaty reduces your rate, you claim the difference as a refund. The IRS processes refunds within 6 to 8 weeks. You must file the return to receive the refund. Over 60 countries have US tax treaties with reduced withholding rates.

What happens if I miss the tax filing deadline?

If you owe taxes and miss April 15, the IRS charges 5% of unpaid taxes per month (up to 25%) plus 0.5% per month failure-to-pay penalty plus interest. If you are owed a refund, there is no penalty but you must file within 3 years to claim it. Non-residents abroad get automatic extension to June 15, but interest accrues from April 15.

Can I e-file Form 1040-NR with an ITIN?

Yes. The IRS accepts e-filed 1040-NR returns with ITINs. Not all software supports non-resident filings. Sprintax ($50-$150) and Glacier Tax Prep are built for non-residents. A CPA can also e-file on your behalf ($300-$800 for non-resident returns). E-filing is faster and reduces errors compared to paper.

Do I need a new ITIN every year to file taxes?

No. Your ITIN stays the same year to year. Renew only if it expired due to 3 years non-use or middle-digit retirement. Once renewed, your ITIN is valid until the next expiration trigger. There is no annual renewal requirement. The IRS charges $0 for renewal via Form W-7.

What is effectively connected income (ECI)?

ECI is income connected to a US trade or business: wages, salary, self-employment income, business profits from a US LLC, and rental income elected as ECI. ECI is taxed at graduated rates (10% to 37%) and you can take deductions against it. This is reported on the main section of Form 1040-NR.

What is FDAP income and how is it taxed?

FDAP stands for Fixed, Determinable, Annual, Periodical income. It includes passive income like dividends, interest, royalties, rents (if not ECI), and pensions. FDAP is taxed at a flat 30% rate unless a tax treaty reduces it. Tax is usually withheld at the source. You report it on Schedule NEC of Form 1040-NR.

How do I claim tax treaty benefits on Form 1040-NR?

Complete Schedule OI (Other Information) on Form 1040-NR. Identify your country of residence, cite the specific treaty article, and show the income amount eligible for the reduced rate. If tax was withheld at 30% but a treaty entitles you to a lower rate, claim the difference as a refund. File Form W-8BEN with payers for future payments.

Written by

itin.so Editorial Team

IRS-Authorized Certifying Acceptance Agents

The itin.so editorial team is made up of IRS-authorized Certifying Acceptance Agent (CAA) professionals who have helped applicants from 150+ countries secure their ITINs. Every guide is sourced from official IRS publications, forms, and instructions, then reviewed for accuracy before publishing.