Form 1040-NR with ITIN 2026: Non-Resident Alien Tax Filing Guide

Who Files Form 1040-NR as a Non-Resident Alien?

Non-resident aliens who did not meet the substantial presence test (183 days) or the green card test file Form 1040-NR. You are a non-resident alien if you spent fewer than 183 weighted days in the US over 3 years and do not hold a green card.

6 types of income require Form 1040-NR filing:

1. US wages and salaries. Income earned while working in the US, including on an H-1B, L-1, or O-1 visa.
2. US rental income. Income from US real estate owned by a non-resident real estate investor.
3. US business income. Profits from a US trade or business, including foreign-owned US LLCs.
4. US-source dividends and interest. Payments from US corporations taxed at 30% or the applicable treaty rate.
5. Capital gains from US assets. Gains from selling US real property (subject to FIRPTA), US stocks if present in the US for 183+ days.
6. Scholarship or fellowship income. Taxable portions of scholarships for international students.

What Schedules Are Required with Form 1040-NR?

Form 1040-NR uses 6 key schedules depending on your income types and deductions.

Schedule OI is required for all Form 1040-NR filers. It asks for your visa type, country of residence, and whether you are claiming treaty benefits. Complete Schedule OI even if you are not claiming any treaty positions.

What Is the Filing Deadline for Form 1040-NR in 2026?

The filing deadline depends on whether you had US wages subject to withholding during the tax year.

For a complete list of all ITIN-related deadlines, see our ITIN tax deadline guide.

What Is the Difference Between ECI and FDAP Income?

Form 1040-NR splits income into two categories that are taxed differently. Understanding this distinction determines where you report each income type.

ECI: Effectively Connected Income

ECI is income connected to a US trade or business. It is taxed at graduated rates from 10% to 37%, the same rates that apply to US citizens. ECI goes on page 1 of Form 1040-NR. You can deduct business expenses against ECI. Examples: wages, self-employment income, rental income (with Section 871(d) election), and business profits from a US LLC.

FDAP: Fixed, Determinable, Annual, Periodical Income

FDAP income is passive income not connected to a US business. It is taxed at a flat 30% rate (or lower treaty rate) with no deductions allowed. FDAP income goes on Schedule NEC. Examples: dividends, interest, royalties, rent (without Section 871(d) election), and certain scholarships. The 30% rate applies to gross income, not net income.

Should You E-File or Mail Form 1040-NR?

E-filing is faster but not all software supports Form 1040-NR with an ITIN. Here is the comparison.

E-File Advantages

• Faster processing: 3 to 6 weeks vs 8 to 12 weeks by mail
• Instant confirmation of receipt
• Faster refunds via direct deposit
• Reduced error risk through built-in validation

E-File Software That Supports ITIN and 1040-NR

• Sprintax: Purpose-built for non-resident tax returns. Supports ITIN, Form 1040-NR, treaty claims, and Schedule NEC. Starting at $49.95.
• Glacier Tax Prep: Used by 600+ universities for international students and scholars. Supports ITIN and treaty benefits.
• TaxAct: Supports Form 1040-NR for basic filing situations.

When You Must File by Mail

File by mail if your ITIN is expired (e-file rejects expired ITINs), if you are applying for a new ITIN with Form W-7 attached, or if your situation is too complex for available software. Mail to: Department of the Treasury, Internal Revenue Service, Austin, TX 73301-0215 (for returns without payment).

How Do You Claim Tax Treaty Benefits on Form 1040-NR?

Claiming tax treaty benefits on Form 1040-NR requires 3 steps. Failing to follow this process triggers a $1,000 penalty per IRC Section 6114.

1. Complete Schedule OI. Check the box indicating you are claiming treaty benefits. Enter the treaty country and the specific article number. Specify the income type and amount exempt or reduced.
2. Attach Form 8833. Treaty-Based Return Position Disclosure is required for every treaty claim. Enter the treaty country, article number, and a statement explaining how the treaty applies to your situation.
3. Report reduced tax on the return. Enter the treaty-reduced withholding rate on Schedule NEC for FDAP income or on page 1 for ECI treaty claims.

For detailed treaty rates by country, see our ITIN tax treaty guide.

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

Follow these 8 steps to complete and file Form 1040-NR with your ITIN.

1. Determine your filing obligation. Confirm you are a non-resident alien (did not meet substantial presence or green card test) with US-source income.
2. Gather income documents. Collect all W-2s, 1099s, 1042-S forms, and K-1s showing US-source income.
3. Classify income as ECI or FDAP. Separate effectively connected income from passive income. This determines which sections of Form 1040-NR you complete.
4. Complete page 1 with ECI. Enter wages, business income, and other ECI on page 1. Enter your ITIN in the SSN field.
5. Complete Schedule NEC with FDAP income. Enter dividends, interest, royalties, and other passive income. Apply the 30% rate or applicable treaty rate.
6. Complete Schedule OI. Enter your visa type, country, and treaty claim information.
7. Attach Form 8833 if claiming treaty benefits. Disclose every treaty position taken.
8. Sign, date, and submit. E-file through compatible software or mail to the IRS Austin processing center.

What Are the 5 Biggest Mistakes on Form 1040-NR?

1. Claiming the standard deduction. Non-residents cannot take the standard deduction ($15,000 for single filers in 2026). Only itemized deductions connected to US income are allowed.
2. Missing Form 8833 for treaty claims. Every treaty position requires a separate disclosure. The $1,000 penalty applies per omission.
3. Reporting worldwide income. Non-residents report only US-source income. Foreign income earned outside the US is not reported on Form 1040-NR.
4. Using the wrong form. Filing Form 1040 instead of 1040-NR (or vice versa). Check the substantial presence test to determine the correct form.
5. Not electing ECI treatment for rental income. Without the Section 871(d) election, rental income is taxed at 30% on gross receipts. With the election, you deduct expenses and pay tax only on net profit.