For an Australian with U.S.-source income, the label matters. U.S. tax residency, Australian tax residency, citizenship and immigration status are four separate things. A person can be an Australian tax resident and still a nonresident alien under U.S. domestic rules.
This guide covers eligibility, treaty exceptions, itemised deductions, forms and documentation. Rules vary by tax year and individual facts, so check current IRS materials before filing. Figures below reflect the 2025 tax year.
Key Takeaways
- Most Form 1040-NR filers get no standard deduction.
- Eligible students and business apprentices from India are the treaty exception.
- A valid spouse election gives resident treatment but triggers worldwide-income reporting.
- Itemised deductions, effectively connected income and treaty benefits need separate review.
Who Is a Nonresident Alien for U.S. Federal Tax Purposes?
Green card test and substantial presence test
An alien is any person who is not a U.S. citizen or national. A nonresident alien is someone who passes neither the green card test nor the substantial presence test, subject to exceptions, according to the IRS taxation guidance.
- Green card test: lawful permanent residence at any time during the calendar year.
- Substantial presence test: at least 31 days in the current year and 183 weighted days (current-year days, plus one-third of the prior year, plus one-sixth of the year before that).
- Closer connection exception: fewer than 183 actual days, a foreign tax home and closer foreign ties, claimed on Form 8840.
Visa type, nationality or Australian residence alone does not settle U.S. status. Apply the U.S. tests on their own terms.
U.S. tax residence versus Australian tax residence
Domestic-law status and treaty residence are different questions. Under Article 4 of the U.S.-Australia treaty, a dual resident is sorted by permanent home, then habitual abode, then closer personal and economic relations. Citizenship only feeds into that last step.
A dual resident who claims treaty residence in Australia must file Form 1040-NR on time, compute tax as a nonresident and attach Form 8833. Treaty residence does not grant the standard deduction.
Resident aliens and dual-status aliens
Resident aliens generally report worldwide income. Nonresident aliens generally report U.S.-source income and income effectively connected with a U.S. trade or business (ECI). Dual-status taxpayers and people electing resident treatment need case-by-case treatment.
Three quick examples:
- An Australian consultant working temporarily in the U.S. may be taxed on wages for services performed there.
- An Australian investor with U.S. rental income is taxed by reference to property location.
- Someone who becomes a U.S. resident mid-year may be dual-status.
Can Nonresident Aliens Claim the Standard Deduction?
General rule for Form 1040-NR filers
No, in most cases. Section 63(c)(6)(B) of the Internal Revenue Code sets the nonresident alien standard deduction at zero. Always check the current Publication 519 and Form 1040-NR instructions.
Limited U.S.-India treaty exception
Eligible students and business apprentices from India may claim the standard deduction under Article 21(2) of the treaty. The conditions are tight:
- The person was resident in India immediately before visiting the U.S.
- Presence is principally for education or training.
- Benefits last only for a reasonable or customary training period.
- No itemised deductions claimed at the same time
- No claim if a spouse files and itemises
Indian nationality or student status alone is not enough. Publication 519 has the worksheet.
Election to be treated as a resident alien
A nonresident married to a U.S. citizen or resident can elect full-year resident treatment under section 6013(g). A separate election under section 6013(h) covers someone who was a nonresident at the start of the year and a resident at the end.
The trade-off: the couple files jointly and both report worldwide income. For some households that cost outweighs the deduction.
Dual-status aliens
A dual-status return does not allow the standard deduction. Which form you file depends on your status on the last day of the year:
- Resident on the last day: Form 1040 with a nonresident-period statement
- Nonresident on the last day: Form 1040-NR with a resident-period statement
A spouse election may change this, so check the current rules.
Standard deduction versus other tax benefits
Losing the standard deduction does not end every benefit.
| Category | Example | Check eligibility |
|---|---|---|
| Itemised deduction | State income tax, U.S. charity | Schedule A (1040-NR) |
| Adjustment | IRA, HSA, student-loan interest | Form 1040-NR instructions |
| Credit | Foreign tax credit | Form 1040-NR instructions |
| Treaty relief | Reduced withholding | Treaty text, Form W-8BEN |
What Deductions, Credits and Treaty Benefits May Be Available?
Itemised deductions connected with effectively connected income
Nonresident aliens generally deduct only items connected to ECI, using Schedule A (1040-NR). Schedule A (1040) is not interchangeable. For 2025, the Schedule A instructions list:
- State and local income taxes: capped at $40,000 ($20,000 if married filing separately), phasing down at higher income.
- U.S. charitable gifts: to qualifying U.S. organisations, with percentage limits; noncash gifts over $500 need Form 8283.
- Casualty and theft losses: generally federally declared disasters involving U.S. property.
Amounts are in U.S. dollars and change by year.
Business and income-producing expenses
Ordinary and necessary expenses of a U.S. trade or business are deductible to the extent they relate to ECI. Personal costs are not. Keep records tying each expense to the income it earned.
An Australian holding U.S. rental property can elect under section 871(d) to treat the income as ECI. That permits deductions and graduated tax on net income. The election covers all qualifying U.S. real-property income and continues until revoked.
Limits based on income type
Deductions cannot offset passive income that is not ECI. The IRS states that FDAP income is taxed at a flat 30 percent (or a lower treaty rate if you qualify), and no deductions are allowed against such income.
For example, an Australian receiving U.S. dividends has tax withheld at source. Costs of earning that income do not reduce it.
Credits and adjustments
Eligibility is narrower than for residents:
- IRA, HSA and student-loan deductions may apply; an IRA deduction needs taxable ECI compensation
- Foreign tax credit may be available under conditions
- Earned income credit and American opportunity credit are not available on Form 1040-NR
Tax treaties, including the U.S.-Australia treaty
A treaty can reduce withholding, exempt income or allocate taxing rights. It does not make you a resident or create standard-deduction eligibility. For qualifying Australian-resident beneficial owners, general ceilings on non-ECI income are:
| Income | Treaty ceiling |
|---|---|
| Ordinary dividends | 15% |
| Ordinary interest | 10% |
| Covered royalties | 5% |
These are ceilings, not universal rates. Some interest is exempt under U.S. law.
Give Form W-8BEN to the payer, not the IRS, and keep evidence of treaty residence. Review the current treaty and technical explanation.
How Are Nonresident Aliens Taxed?
U.S.-source and effectively connected income
Source decides what the U.S. can tax. ECI decides how it is reported.
| Income | Source determinant |
|---|---|
| Wages and services | Where services are performed |
| Interest | Residence of payer, with exceptions |
| Dividends | U.S. or foreign status of payer |
| Rent | Property location |
| Royalties | Where property is used |
Different tax treatment for active and passive income
ECI is taxed at graduated rates with allowable deductions. Passive FDAP (fixed, determinable, annual or periodical) income is generally subject to 30% withholding, or a lower treaty rate. Withholding is not always final tax, so do not assume it settles the liability.
Forms, withholding and state obligations
- Form 1040-NR: the nonresident return. Participation in a U.S. trade or business generally requires filing even without taxable business income.
- W-2, 1042-S, 1099: report wages, foreign-person income and withholding, and support refund claims.
- ITIN (Form W-7): for those who need a U.S. tax ID but cannot get an SSN.
For the 2025 tax year, the filing deadline is 15 April 2026 if you received U.S. wages subject to withholding; otherwise it is 15 June 2026. State taxes are separate. California, for example, taxes nonresidents on California-source income.
Filing and Documentation Checklist
Confirm status and income categories
- List travel days for the current and two prior years.
- Gather visa and green card records.
- Sort income into ECI and non-ECI.
- Note any treaty-residency position.
- Confirm the tax year, deadline and current Form 1040-NR requirements with the IRS.
Gather forms and evidence
- Forms W-2, 1042-S, 1099 and W-8BEN
- Receipts for charitable gifts and expenses
- Treaty support, including Form 8833 where required
- State withholding and proof of income source
- Keep tax records for at least three years from filing (longer for property)
- Use Form 1040-X to amend a prior return
When professional support may be appropriate
Seek specialist review for:
- Mixed resident and nonresident status
- A resident-spouse election
- U.S. partnership or rental income
- Treaty claims and amended returns
- Possible double taxation involving Australia
VJM Global supports Form 1040-NR preparation, ITIN applications and treaty and withholding reporting. Australian businesses or investors with connected U.S. and India activities may also need coordinated cross-border accounting. This is tax compliance support, not immigration advice, and it cannot guarantee any deduction.
Frequently Asked Questions
Can a nonresident alien claim the standard deduction?
Generally no. The exception is eligible students and business apprentices from India under the treaty. A qualifying spouse election gives resident treatment but requires worldwide-income reporting.
How are nonresident aliens taxed?
Tax focuses on U.S.-source income and ECI. ECI gets graduated rates, while FDAP income is generally withheld at 30% unless a treaty lowers it.
How are resident aliens taxed in the U.S.?
Resident aliens generally follow citizen rules, reporting worldwide income with broader access to deductions and credits, subject to current law.
Can nonresident aliens claim itemised deductions?
Some, when connected with ECI, using Schedule A (1040-NR). Limits and documentation requirements apply.
What form does a nonresident alien use to file a U.S. tax return?
Generally Form 1040-NR. Required schedules depend on income, treaty claims and personal circumstances.
