US Work Visits and Taxes for Argentina Residents
Service income, owner-paid expenses and protective returns
Who This Applies To
- Argentina residents who periodically visit the United States and perform services.
- Foreign individuals operating through a disregarded U.S. single-member LLC.
- Owners paying business expenses personally or evaluating a protective Form 1040-NR.
This article assumes the individual remains a nonresident alien for U.S. tax purposes. Residence in Argentina alone does not establish that status. Confirm the entity classification, travel history, services and compensation before applying the conclusions.
Core Tax Rule
A nonresident’s performance of personal services in the United States generally constitutes a U.S. trade or business, subject to limited exceptions. Compensation attributable to that work is generally U.S.-source and may be effectively connected income, meaning income taxable under the U.S. business rules. A disregarded LLC generally does not separate its owner from those activities for federal income-tax purposes.
Frequently Asked Questions
1. Can a short working visit create U.S. tax obligations?
Yes. There is no general tax-free allowance for brief working visits. Identify what you actually did and where you did it. Calling the trip a vacation or business visit does not determine the tax result. Section 864(b) specifically includes U.S.-performed personal services, subject to its exceptions.
2. Does it matter that my customers and bank account are abroad?
For ordinary service-income sourcing, physical work location generally controls. Services performed from a U.S. hotel can generate U.S.-source income even when the client, contract and receiving account are abroad. Those facts do not move the work outside the United States.
3. How should I divide income between U.S. and foreign work?
Match compensation to the work that earned it, then allocate by location. A time basis is commonly appropriate for an individual, but the method must fit the facts and applicable rules. Compare U.S. work time with total work time for the relevant compensation; do not simply divide travel days by 365. Retain project records, contracts and the allocation calculation.
4. Should I track presence days separately from workdays?
Yes. Presence days help determine residency and eligibility for the short-stay exception. Workdays or hours help allocate compensation. A day without work may still count toward U.S. presence, while remote work can count as U.S.-performed services without a client meeting.
5. What are the conditions for the short-stay exception?
All three conditions generally must be satisfied: no more than 90 total days of U.S. presence during the tax year; no more than $3,000 of aggregate compensation for the relevant U.S. services; and a qualifying service recipient. That recipient must be a nonresident individual, foreign partnership or foreign corporation not engaged in a U.S. trade or business, or a qualifying foreign office of a U.S. person.
The limits apply to the year, not separately to each visit. The $3,000 amount is an eligibility ceiling, not an automatic deduction from taxable compensation.
6. Does my disregarded LLC make the exception available?
No. The LLC generally is not a separate employer or customer of its owner for federal income-tax purposes. Examine the underlying contracts and service recipient. Living in Argentina or withdrawing little cash from the LLC does not establish that the exception applies.
7. Can I rely on a U.S.–Argentina treaty exemption?
As of October 21, 2026, no comprehensive U.S.–Argentina income-tax treaty is in force. An Argentina resident should therefore not assume a treaty exemption for short visits or a permanent-establishment threshold. Apply domestic U.S. law unless a separate treaty entitlement is established from additional facts.
8. Does staying below 183 days prevent U.S. taxation?
No. Nonresident status does not exempt U.S. business income. The substantial-presence residency test generally considers days over three years, subject to exceptions. Confirm residency separately from the sourcing and business-activity analysis; a single-year “under 183 days” conclusion is insufficient.
9. When is Form 1040-NR required?
A nonresident engaged in a U.S. trade or business generally files Form 1040-NR, subject to applicable exceptions, even if no net taxable profit results. If U.S. work occurred and no exception applies, determine the income and ordinary filing requirement. If every exception condition is met, document that conclusion and check other filing triggers. If limited activities leave uncertainty about effectively connected income, consider a protective return.
10. What does a protective return protect?
It can preserve otherwise allowable deductions and credits if limited U.S. activities, initially determined not to produce effectively connected income, are later found to do so. Attach an explanatory protective statement. The filing does not establish exemption or guarantee deductions. If some income is already determined to be effectively connected, report it and protect only the uncertain activities.
11. Can I deduct costs paid from a personal account?
Personal payment alone does not decide deductibility. Keep the invoice, payment evidence and business purpose. Separate personal spending, capital items and current expenses. Business deductions generally must be connected with effectively connected income, with proper allocation; foreign business costs are not automatically deductible against U.S. income.
12. Can the same payments also affect Form 5472?
Yes. For a qualifying foreign-owned U.S. disregarded LLC, paying an LLC obligation personally can represent owner funding or another reportable transaction. Classify the payment and any reimbursement separately from the underlying expense. Form 5472 reporting does not establish that a cost is deductible.
Forms and Filing Checklist
Form 1040-NR
Who and why: The nonresident individual reports required U.S. income and claims allowable deductions.
Inputs: Residency facts, travel and work records, income allocation, expenses and withholding. Deadline: For a calendar year, generally April 15 if wages subject to U.S. income-tax withholding were received; otherwise generally June 15.
Protective Form 1040-NR
Who and why: The individual protects deduction rights for qualifying uncertain activities.
Inputs: Identification and a statement explaining the protective filing.
Timing: File within the applicable protective-return rules; plan around the ordinary filing deadline. This is a use of Form 1040-NR, not a separate IRS form.
Form 4868 if Needed
Who and why: The individual requests additional filing time.
Timing: By the applicable original return deadline.
Inputs: Identification and a reasonable tax estimate. An extension does not postpone the applicable payment deadline.
Form 5472 with Pro Forma Form 1120
Who and why: A qualifying foreign-owned disregarded LLC reports applicable related-party transactions.
Inputs: EIN, ownership, related parties, owner funding and transaction details.
Deadline: Generally April 15 after a calendar year. Form 7004 may request a filing extension if submitted by the original deadline under the special LLC instructions.
Adjust dates for weekends, legal holidays and applicable relief. The individual’s filing and extension are separate from the LLC’s information-return package.
Deadlines and Deduction Exposure
Section 874 makes a proper return a prerequisite to specified deductions and credits. Treasury Regulation section 1.874-1(b)(1) generally uses a 16-month period after the statutory return due date for this deduction-preservation purpose. If a preceding required return was not filed, an IRS notice described in the regulation can cut that period short.
The 16-month rule is not an ordinary filing extension or permission to delay payment. Late filing may produce ordinary filing or payment consequences as well as loss of deductions. Waiver is fact-dependent. Identify the affected year, prior filing history and notices before calculating the deadline.
Practical Examples
A Short Visit That Exceeds the Compensation Limit
An Argentina resident spends 20 days in the United States and earns $8,000 attributable to services performed there. The compensation exceeds the short-stay ceiling, so the brief visit alone cannot establish that exception.
One Project Performed in Two Countries
An individual performs 180 comparable workdays in Argentina and 20 in the United States on one evenly compensated project. If time allocation reflects the facts, 20 of 200 workdays, or 10%, is attributable to U.S. services. Other projects may require a different calculation.
An LLC Bill Paid Personally
An owner pays an LLC software bill from a personal account. The invoice and payment record support the expense analysis, including business use and allocation. Separately, the owner payment is reviewed as funding for Form 5472.
Uncertainty About Limited Activities
A nonresident concludes that limited U.S. activities did not produce effectively connected income, but the result remains uncertain. A timely protective filing may preserve deduction rights if that conclusion is later rejected. Known effectively connected income must still be reported.
Authorities and Why They Apply
The numbered references support the corresponding discussion. Statutes and Treasury regulations provide the legal rules; IRS instructions explain filing procedures. Use the versions applicable to the year being filed.
U.S. service-income sourcing and the three-part short-stay exception.
Treasury Regulation section 1.861-4(a) and (b)
Presence counting and allocation of compensation for services performed in multiple locations.
U.S. trade or business, the limited personal-services exception and effectively connected income.
Taxation of a nonresident individual’s effectively connected taxable income.
IRC section 874 and Treasury Regulation section 1.874-1
Paragraphs (b)(1), (b)(2) and (b)(6) govern deduction-preservation deadlines, waiver and protective returns.
Statutory text of IRC section 874
Practical guidance on tax residency, U.S. service income and nonresident taxation.
IRS Instructions for Form 1040-NR
Who must file, ordinary deadlines and extensions for nonresident individuals.
IRS Income Tax Treaties A to Z
Current treaty-partner reference; Argentina is not listed as a comprehensive income-tax treaty partner.
Treasury Regulation section 301.7701-2
Disregarded-entity treatment and its limited exceptions, including section 6038A reporting.
Connection and allocation requirements for deductions against effectively connected income.
Treasury Regulation section 1.6038A-2 and IRS Form 5472 Instructions
Owner funding and other reportable transactions, pro forma Form 1120 and the special extension procedure.
Regulatory text of section 1.6038A-2
IRS Instructions for Form 1120
The deadline framework referenced by the Form 5472 instructions.
Professional Disclaimer
This article is for general educational purposes only and is not individualized tax, legal, or accounting advice. U.S. tax consequences for Argentina residents working during U.S. visits depend on residency, days present, where services are performed, compensation, deductions, and the specific filing facts.
For advice specific to your circumstances, schedule a paid consultation with O & G Tax and Accounting Services.
***Disclaimer: This communication is not intended as tax advice, and no tax accountant/Attorney client relationship results**
