Employer Changes Can Void the Job Behind Your Work Visa

If you hold an employer-sponsored work visa, a future expiration date on the document is not the reassurance it appears to be. When your sponsoring employer, job, salary, or worksite changes, the immigration permission behind that visa may no longer line up with the work waiting for you — and border officers can refuse entry even when the sticker is still valid.

Why the visa and the approval are separate

Most immigration systems split three things that travelers tend to treat as one: the travel document (a visa sticker, eVisa, or travel authorization), the employment approval (such as a U.S. petition, a Canadian LMIA or offer, or a UK Certificate of Sponsorship), and the actual permission to work. These records can carry different information. A new offer letter does not automatically replace the original approval. A genuine trading-name change might need only notification and evidence, while moving to an unrelated company usually requires fresh authorization.

Timing matters too. Workers already admitted and working in a country generally have more flexibility than those still outside it. The riskiest moment is after an approval but before travel — border authorities may ask whether the company still exists, whether the offer is still open, and whether you will actually perform the approved role. A withdrawn position is especially dangerous, since arriving to start a job that no longer exists can lead to refusal.

H-1B specifics

A new U.S. employer normally files Form I-129 for an H-1B worker. Certain qualifying workers already inside the U.S. can begin work once USCIS receives a qualifying nonfrivolous petition — known as H-1B portability. That flexibility is narrower from abroad: a worker overseas should generally wait for the new petition's approval before traveling. An unexpired H-1B visa issued while employed by Company A can typically be presented alongside Company B's valid I-797 approval, and State Department guidance says a new visa stamp is not ordinarily required solely because the employer changed. Admission still depends on inspection by Customs and Border Protection.

One new wrinkle: as of August 3, 2026, a presidential proclamation restricts H-1B issuance and entry tied to petitions filed after September 21, 2025, unless a USD 100,000 payment was made or DHS granted an exception. It is scheduled to expire September 21, 2026 absent an extension. Employer-change petitions face separate review under this restriction. Moving to a worksite outside the area covered by the existing Labor Condition Application can also count as a material change requiring an amended petition.

Canada and elsewhere

Canada distinguishes open work permits, which generally allow employer changes, from employer-specific permits, which name the employer and often require a new permit before switching jobs. A port-of-entry letter based on Employer A should not be treated as authority to work for Employer B. A Canadian work permit is not itself a travel document, so a temporary resident visa or eTA may still be needed.

The takeaway: before traveling after any employer or role change, confirm that the approval and work permission — not just the visa — still match your actual job, and carry supporting documents to the border.

Originally reported by VisaVerge.