The H1B vs H4 visa distinction is straightforward: the H-1B is the work visa held by the employee, and the H4 is the dependent visa held by their spouse and children. They are granted together and expire together, but only one of them carries the right to work by default.
The United States offers various visa categories to cater to the needs of immigrants, workers, students, and their families. Among these, the H1B and H4 visas are closely related but serve entirely different purposes. Understanding the distinctions between these two visa types is essential, especially for skilled workers and their dependents planning to move to the U.S.This detailed guide explains the key differences between the H1B and H4 visas, their eligibility criteria, benefits, restrictions, and processes.
What is an H1B Visa?
The H1B visa is a non-immigrant visa that allows U.S. companies to employ foreign workers in specialized occupations. These jobs typically require theoretical or technical expertise, such as IT, engineering, healthcare, and finance.
Key Features of the H1B Visa
Work Authorization: H1B holders can work only for the sponsoring employer.
Duration: Initially granted for 3 years, extendable up to 6 years.
Dual Intent: Allows the holder to apply for a green card while on the visa.
Annual Cap: Subject to a quota of 85,000 visas per fiscal year, including:
65,000 for general applicants.
20,000 for individuals with U.S. master’s degrees or higher.
Eligibility:
A job offer from a U.S. employer in a specialized field.
A bachelor’s degree or equivalent in the relevant field.
Benefits of H1B Visa
Ability to work in the U.S. legally.
Pathway to permanent residency (green card).
Dependents can accompany the holder on H4 visas.
What is an H4 Visa?
The H4 visa is a dependent visa issued to immediate family members (spouse and children under 21) of H1B visa holders. Its primary purpose is to allow families to stay together while the H1B holder works in the U.S.
Key Features of the H4 Visa
Dependent Status: H4 holders depend on the primary H1B holder’s status.
No Work Authorization (Generally):
However, certain H4 holders can apply for an Employment Authorization Document (EAD) if the H1B holder has an approved green card application.
Duration: Valid as long as the H1B visa is active.
Education: H4 holders can study in the U.S. without additional visas.
Benefits of H4 Visa
Family members can accompany the H1B holder.
Access to U.S. education for children.
Potential work authorization for eligible spouses.
Application Processes for H1B and H4 Visas
H1B Visa Application Process
Employer Sponsorship: A U.S. employer files a Labor Condition Application (LCA) with the Department of Labor.
Petition Filing: Employer submits Form I-129 to USCIS.
Approval and Consular Processing: If approved, the applicant applies for the H1B visa at a U.S. consulate.
Start Work: Once the visa is stamped, the applicant can begin employment.
H4 Visa Application Process
H1B Approval: Ensure the H1B visa holder has a valid status.
Visa Application: Submit Form DS-160 online.
Visa Interview: Attend an interview at the U.S. consulate.
Dependent Status: Receive the visa and travel to the U.S.
Common Scenarios
Can H4 Visa Holders Work in the U.S.?
H4 visa holders can work if they obtain an Employment Authorization Document (EAD). Eligibility for EAD arises when:
The H1B holder has an approved I-140 (green card petition).
Can H1B Visa Holders Bring Their Families?
Yes, immediate family members can accompany H1B holders on H4 visas.
Can H4 Visa Holders Transition to H1B?
Yes, H4 holders can apply for an H1B visa if they meet the eligibility criteria, such as a job offer and a bachelor’s degree.
Tips for a Smooth Application
For H1B Applicants:
Ensure the employer is compliant with visa regulations.
Apply early to secure a spot within the quota.
For H4 Applicants:
Keep all documents related to the H1B holder’s status.
Prepare for the visa interview with supporting evidence like marriage or birth certificates.
Conclusion
The H1B and H4 visas serve complementary roles, enabling skilled professionals and their families to live and thrive in the U.S. The H1B visa focuses on work opportunities, while the H4 visa ensures that families can stay united. By understanding the distinctions and processes, applicants can navigate their U.S. immigration journey with confidence.Whether you’re a skilled professional seeking career opportunities or a family member supporting their loved one, both visa pathways open doors to life in the United States.
H1B vs H4 at a glance
H1B
H4
Who it is for
The worker in a specialty occupation
Spouse and unmarried children under 21 of an H1B holder
Needs a job offer
Yes — an employer must sponsor and petition
No
Can work
Yes, for the sponsoring employer only
Only with an approved H4 EAD, and only if eligible
Can study
Yes, alongside work
Yes, no separate student visa needed
Status depends on
Own petition
The H1B holder’s status
Duration
Three years, extendable to six (longer in some green card cases)
Matches the H1B holder’s validity
Dual intent
Yes — you may pursue a green card
Yes, as a derivative
Annual cap
85,000 (65,000 general + 20,000 US advanced degree)
None
The H4 EAD — who can actually work
This is the question most H4 families are really asking, and the answer is narrower than people expect. An H4 spouse is not automatically allowed to work. Employment authorisation is available only when the H1B holder has reached a specific point in the green card process.
Eligible: the H1B spouse has an approved I-140 immigrant petition.
Also eligible: the H1B holder has been granted an extension beyond the usual six-year limit because of a pending green card case.
Not eligible: everyone else — including families early in the green card process, and H4 children regardless of age.
Where eligibility exists, the H4 spouse files for an Employment Authorization Document. Once it is approved they may work for any employer, change jobs freely, and are not tied to a sponsor the way the H1B holder is. Without it, working — including remote work for a foreign employer while physically in the US — is a status violation.
What happens if the H1B holder loses their job
H4 status is derivative, so it rises and falls with the primary holder. If the H1B holder is laid off, the whole family is affected at once.
The H1B holder generally has a short grace period to find a new sponsoring employer, change status, or depart.
H4 dependants remain in status only as long as the H1B holder does.
An existing H4 EAD stops being valid once the underlying H1B status ends, even if the card itself has not expired.
This is why families in this position act quickly on a transfer to a new employer rather than waiting — the clock runs on everyone, not just the worker.
Children turning 21
H4 status for a child ends at 21. There is no extension of H4 on age alone. Families usually plan one of three routes before the birthday rather than after it:
Change status to F-1 and continue studying as an international student.
Qualify for their own work visa if they have completed a degree and found a sponsor.
Where a family green card case is far enough along, protection under the child status provisions may apply — this is fact-specific and worth checking early.
Leaving this to the last months is the most common and most costly mistake in H4 families.
Everyday practicalities on H4
Study: permitted at any level without switching to a student visa.
Social Security Number: issued only with an approved EAD. Without one, a taxpayer identification number is the usual alternative for tax filing.
Driving licence and banking: generally available, though requirements vary by state and institution.
Travel: re-entry needs a valid H4 stamp and evidence the H1B holder remains in status.
Moving from H4 to H1B
An H4 holder who receives a qualifying job offer can be sponsored for an H1B in their own right. That means entering the annual cap process like any other applicant, unless the employer is cap-exempt — universities and certain non-profit and research organisations fall outside the quota, which is why they are a common route for H4 spouses wanting to work without waiting on an EAD.
Frequently asked questions
What is the difference in the H1B vs H4 visa?
In the H1B vs H4 visa comparison, the H-1B is the work visa held by the employee and the H4 is the dependent visa held by their spouse and children. They are granted and expire together, but only the H-1B carries work authorisation automatically; H4 holders need a separate EAD where they are eligible for one.
Can an H4 spouse work in the US?
Only with an approved H4 EAD, which requires the H1B holder to have reached a qualifying stage of the green card process. Without it, no employment is permitted — including remote work for an employer outside the US.
Can H4 holders study?
Yes, at any level, without changing to a student visa.
Does H4 have an annual cap?
No. The cap applies to H1B petitions only. H4 dependants are not counted against it.
What happens to H4 if the H1B holder changes employer?
H4 status continues provided the H1B holder maintains valid status through the transfer. The dependants do not file separately for the employer change itself.
Can an H4 holder apply for a green card?
Yes, as a derivative of the H1B holder’s case. Both visas allow dual intent, so pursuing permanent residence does not jeopardise the status.
Is H4 easier to get than H1B?
They are not comparable. H4 has no cap, no lottery and no job offer requirement — but it is only available to the dependants of someone who already holds H1B status.
Planning an H1B or H4 application
US immigration rules around H4 employment authorisation and dependent status have changed several times, and the details that matter depend on where the family sits in the green card process. Talk to our team before filing if your case involves an EAD, a child approaching 21, or a change of employer.
Mary Emanuel is a Senior Global Immigration Specialist with over 15 years of experience guiding individuals, families and multinational corporations through complex visa and immigration processes across more than 40 countries.
At NC Visas she leads guidance on Australian skilled and student visas, UK work and study routes, Canadian permanent residence, and the European job seeker and work permit categories — the areas she writes about most on this site. Her work focuses on assessing eligibility honestly before an application is lodged, so that applicants understand the real requirements and timelines rather than the marketed version.
She writes the guides on this site to give applicants the same assessment she would give in consultation: what the rule actually says, what commonly causes refusals, and when an applicant is better advised to strengthen their profile before applying.
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