itin.expert

LLC owner · United Kingdom

A UK founder learns when his single-member LLC actually needs him to have an ITIN

In year one we told Samuel he did not need an ITIN. In year two he hired a U.S. sales lead who signed contracts, which created a 1040-NR obligation. We filed it with his W-7.

Samuel O.
Samuel O.
Founder, Delaware LLC · United Kingdom
$0
fee in year one
12 weeks
IRS processing
This case is for you if
  • You own a single-member U.S. LLC from outside the U.S.
  • You are not sure whether you file only Form 5472 or also a 1040-NR
  • You have hired people or opened an office in the U.S.

The situation

They could have taken my money in year one. Instead they told me to come back when it actually mattered.

Samuel runs a software company from London through a Delaware LLC. In 2023 all sales were made online by his London team, and the LLC had no U.S. office, staff or agent.

In 2024 he hired a sales lead in New York who negotiated and signed customer contracts on the LLC’s behalf.

Application path

W-7 reason
Reason b — nonresident alien filing a U.S. federal tax return
Filed with
Form 1040-NR for tax year 2024

For 2023 the LLC only needed a pro forma Form 1120 with Form 5472, filed under its EIN; Samuel had no personal filing requirement and no basis for an ITIN. In 2024 a U.S. employee concluding contracts meant the income was effectively connected, so Samuel had to file a 1040-NR.

Documents

What the client provided
  • Valid UK passport
  • LLC formation documents and EIN letter
  • 2024 financial statements and the sales lead’s employment agreement
What we prepared
  • Form W-7 with Reason b
  • Form 1040-NR reporting effectively connected income
  • Pro forma Form 1120 and Form 5472 for 2024
  • Form W-7 (COA) Certificate of Accuracy

Timeline

  1. 2024, month 2
    First call. No ITIN needed for 2023; Form 5472 only.
  2. 2025, day 1
    Second call after the New York hire; ECI confirmed.
  3. 2025, day 5
    Video interview; passport certified.
  4. 2025, day 9
    W-7 and 1040-NR mailed.
  5. Week 12
    ITIN issued.

Issues we solved

Samuel’s bank asked for his ITIN in 2023 and he wanted to apply anyway.

An application without a filing requirement would have been rejected. We explained the rule and he opened the account with his passport and the LLC’s EIN instead.

The IRS sent a CP566 letter asking for the sales lead’s employment agreement as support.

We replied within a week, well inside the 45-day window, and the application moved forward without being re-filed.

Outcome

The ITIN was issued twelve weeks after filing. Samuel’s 2024 obligations are now complete: Form 5472 for the LLC and a 1040-NR for himself.

Missing Form 5472 carries a $25,000 penalty, so we set both forms on the same annual calendar.

Questions people in this situation ask

Does a foreign-owned single-member LLC need the owner’s ITIN for Form 5472?

No. Form 5472 and the pro forma 1120 are filed under the LLC’s EIN.

What creates a 1040-NR filing requirement?

Income effectively connected with a U.S. trade or business, for example U.S. employees or agents who conclude contracts, a U.S. office, or U.S. inventory.

What is a CP566?

A request for more information. You have 45 days to respond before the application is closed.

IRS sources

This is a representative case. Names and personal details are illustrative; the IRS rules, forms and calculations reflect tax year 2024. It is general information, not tax advice for your situation.