17 Aug U.S. Work Visas for UK and Irish Employers: a Diagnostic Starting Point, Not Another Directory
You’ve spent hours checking online sources for information on visa routes open to a UK or Irish company needing to move an individual to the U.S. to head up an operation there with no definitive, actionable guidance that appears to fit the situation.
The problem appears straightforward: a key person needs to be moved, along with family members, to the U.S. as soon as possible.
The financing is in place, you’ve been informed, there’s been board approval, and now, as the head of HR, you’re expected to book a consultation with counsel and then provide a full report to leadership on the timing for the move.
At a glance: There is no single U.S. work visa for employees of UK or Irish companies. The right route depends on the person’s proposed activities, the relationship between the overseas and U.S. entities, nationality and company ownership, and the required start date. Possible routes include the L-1, H-1B, E-1, E-2 and O-1 visas.
“As managing partner of Flynn Hodkinson, a London firm working solely in U.S. visa and nationality law, I've spent more than 20 years helping individuals and companies work through the clutter and pinpoint which U.S. visa fits their situation.”
The frustration:
- A key person needs to be in the U.S. and leadership wants answers.
- The employee keeps asking what happens next.
- After two hours of searching for answers online, you still cannot determine which visa applies.
The villain:
- This is not a competence failure; almost all the relevant content online is written for U.S. employers and assumes facts that do not hold for a UK or Irish business.
Why the search failed. The three assumptions:
- “The employee is already in the U.S.”
Most U.S.-facing content assumes a change of status inside the country. A UK-based employee is usually applying from outside, which changes route viability and, for H-1B, cost.
- “The company is a U.S. entity.”
Whether a qualifying corporate relationship exists between the UK/Irish company and a U.S. entity is decisive for the L-1 route — that distinction is invisible in U.S.-written guides.
- “Nationality doesn’t matter.”
It often does matter. The E-1/E-2 treaty routes turn on the nationality of the company and its owners; the UK and Ireland are under different treaty instruments.
*A fourth “symptom” of failed research is the confusion between a U.S. work visa and a U.S. business visa. This distinction is blurred in most generic content.
What to sort out before you can even ask the question “which visa?”
The first task is not choosing a visa; it is assembling the facts that will determine the visa path. There are four factors to use as a diagnostic to use internally before any call with a lawyer. Armed with these factors, HR can approach the conversation with leadership prepared rather than ambushed.
- Activity
What will the person actually do in the U.S., and for how long? Is what’s contemplated a short business trip? A genuine transfer? A permanent role?
- Corporate structure
Is there a U.S. entity? What is its relationship to the UK or Irish company?
Parent? Subsidiary? Affiliate? Branch?
- Nationality and ownership
What is the nationality of the employee? Of the company? Of company owners? (This factor opens or closes treaty routes.)
- Timeline
When does the person need to start? Has a start date been promised internally? (Timing changes what is realistic.)
The visas at a glance:
| Visa | What it’s for | Key fact |
| L-1 (Transfer Visa) | Moving an existing employee from the UK/Irish entity to a related U.S. entity, in a managerial, executive, or specialised-knowledge role |
Requires one continuous year of employment abroad within the three years immediately preceding the petition/transfer USCIS petition, then consular processing; Premium processing is available ($2,965, Form I-907, effective 1 March 2026). The U.S. organisation will usually file a Form I-129 petition with USCIS before the employee applies for an L visa abroad. A different procedure may apply where the organisation has an approved blanket L petition. |
| H-1B (Specialty Occupation) | A role needing a specialized body of knowledge, typically evidenced by at least a bachelor’s degree in the field. Many first-time H-1B cases are subject to the annual numerical cap and selection process, although cap-exempt employers and other cap-exempt cases exist. | Current H-1B fee issue: Certain H-1B petitions involving workers outside the United States may be subject to the $100,000 payment introduced under Presidential Proclamation 10973. The payment does not apply to every H-1B petition, and its enforceability and scope remain subject to legal and policy developments. Its status must be checked against current government guidance and court records before publication. |
| E-1/E-2 (Treaty Trader/Investor) |
For nationals of a treaty country carrying on substantial trade with the U.S. (E-1) or directing a substantial U.S. investment (E-2).
|
Turns on nationality and the specific treaty instrument. UK and Ireland differ. Consular route: no USCIS adjudication step. |
| O-1 (Extraordinary Ability) | The O-1 may be relevant for an individual who can document extraordinary ability and sustained national or international acclaim. It can be worth assessing for a senior specialist with an unusually strong professional record, but the evidentiary standard is demanding and a qualifying US employer or agent must file the petition. |
A qualifying U.S. employer or agent must file Form I-129 with USCIS; the individual cannot self-petition. The evidence must demonstrate sustained national or international acclaim, and the proposed U.S. work must be in the applicant’s area of extraordinary ability. Premium processing is available.
|
ESTA or a B-1 visa may permit certain temporary business activities, including meetings, consultations, conferences and contract negotiations. It does not normally authorise employment or the performance of productive work for a U.S. business. Some narrow exceptions exist, so the proposed activities must be assessed rather than judged solely by the length of the trip.
The UK/Ireland difference
The United Kingdom and Ireland both have access to the E-1 Treaty Trader and E-2 Treaty Investor routes, but the legal basis and country-specific requirements are different.
- For UK nationals and qualifying UK-owned companies
The E-1/E-2 treaty basis is the 1815 Convention of Commerce and Navigation between the U.S. and the UK (UK nationals must be resident in the UK to qualify).
- For Irish nationals and qualifying Irish-owned companies
The E-1 Treaty Trader route is based on the 1950 Treaty of Friendship, Commerce and Navigation between Ireland and the United States. The E-2 Treaty Investor route became available under the 1992 Protocol to that treaty, which entered into force on 18 November 1992.
Both E-1 and E-2 visas may therefore be available to eligible UK and Irish nationals. Eligibility will depend on the ownership and nationality of the U.S. enterprise, the nature of the trade or investment, and the role the applicant will perform in the United States.
Why just reading this blog can’t help finish the job
- We’re telling readers which questions decide the answer, but the answer itself depends on specific facts.
Only after the facts have been ascertained: worksite details, ownership structure, timing, and petition mechanics, can a consultation help work through to the answers.
- On the consular E-1/E-2 route, the treaty visa is issued through consular processing.
There is no USCIS petition stage on that route; treaty visas are issued through consular processing only (the U.S. Embassy in London for UK-based applicants).
- The next step is a structured conversation.
The resulting written post-consultation summary will be persona-specific, ready to be forwarded internally by HR to leadership without translation.
If you’d find it useful to turn these four questions into a clear view of your options, that is precisely what an initial consultation is for.
This post is for informational purposes only and is not intended as legal advice. If you require further assistance or advice relating to the above, please contact janice@flynnhodkinson.com.
1. How do we determine which U.S. work visa our employee needs?
The correct route depends on the facts rather than the employee’s job title alone. The main considerations are what the person will do in the United States, the relationship between the overseas and U.S. businesses, the employee’s nationality, the ownership of the company and the proposed start date. These facts may point towards an L-1, H-1B, E-1, E-2, O-1 or another immigration route.
2. Can an employee travel to the United States on ESTA or a B-1 visa and begin working?
Generally, no. ESTA and the B-1 business visitor classification may cover limited activities such as attending meetings, consulting with business associates, negotiating contracts or attending conferences. They do not normally authorise employment or productive work for a U.S. business. The planned activities should be reviewed carefully before the person travels.
3. Is the L-1 always the best visa for an employee transferring from a UK or Irish company?
No. The L-1 is only available when there is a qualifying relationship between the overseas organisation and the U.S. organisation. The employee must also normally have worked continuously for the qualifying organisation abroad for at least one year during the relevant three-year period and must be coming to the United States in an executive, managerial or specialised-knowledge capacity.
4. Does the company need a U.S. entity before it can apply for a work visa?
That depends on the route. An L-1 requires a qualifying U.S. organisation related to the overseas company. An H-1B normally requires a U.S. employer to file the petition, while the E-1 and E-2 routes require a qualifying U.S. treaty enterprise. The structure of the U.S. operation should therefore be reviewed early rather than after a start date has already been agreed.
5. Does the employee’s nationality affect the visa options?
Yes, particularly for E-1 Treaty Trader and E-2 Treaty Investor visas. These routes depend on the relevant treaty country and, in corporate cases, the nationality and ownership of the U.S. enterprise. Both the United Kingdom and Ireland have access to E-1 and E-2 visas, but the legal basis and country-specific requirements differ.
6. Is every H-1B application subject to the annual cap and selection process?
No. Many first-time H-1B petitions are subject to the annual numerical cap and selection process, but exemptions exist. Certain institutions of higher education, affiliated organisations, nonprofit research organisations and governmental research organisations may qualify for cap-exempt filings. Some workers who have already been counted against the cap may also be exempt from a new selection process.
7. Can the employee’s spouse and children move to the United States with them?
Most of the visa categories discussed in this guide allow a spouse and unmarried children under the age of 21 to apply for corresponding dependent status. However, the spouse’s right to work depends on the principal applicant’s visa category and the spouse’s immigration documentation. Family arrangements should be considered at the same time as the employee’s application, especially where the move affects employment, schooling or the planned relocation date.
8. How long does it take to obtain a U.S. work visa?
There is no single processing time. The timeline depends on the visa category, whether a USCIS petition is required, whether premium processing is available, the quality and complexity of the evidence, and appointment availability at the relevant U.S. embassy or consulate. An internal start date should not be treated as confirmed until the route and realistic processing stages have been assessed.
9. How much does a U.S. work visa cost for a UK or Irish employer?
The total cost may include legal fees, USCIS filing fees, visa application or consular fees, premium-processing fees and costs connected with the employee’s family. Some fees depend on the employer, petition type and location of the employee. Government fees and any temporary or policy-based charges should be checked when the application strategy is confirmed.
10. When should an employer speak to a U.S. immigration lawyer?
Ideally, before the company promises a start date, commits to a relocation timetable or assumes that a particular visa will work. Early advice allows the company to assess the proposed activities, corporate structure, nationality and ownership issues, timing, costs and family requirements before those factors begin to delay the wider business plan.
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