For employers seeking to transfer key personnel to the United States through the L-1 intracompany transferee visa, or to petition for a multinational manager or executive under the EB-1C immigrant classification, one threshold requirement often determines the outcome of the entire case: demonstrating that the beneficiary worked abroad, full-time and continuously, for at least one year within the relevant qualifying period. For L-1 petitions, this means one continuous year of employment abroad within the three years immediately preceding the employee's admission to the United States in L-1 status. For EB-1C petitions, USCIS looks to one year of qualifying employment abroad within the three years preceding the filing of the petition (or, if the beneficiary is already in the U.S. working for the petitioning employer, within the three years preceding the employee's transfer to the United States). Because this requirement is jurisdictional rather than discretionary, USCIS adjudicators scrutinize it closely, and gaps or ambiguities in the record are a common basis for Requests for Evidence (RFEs) and denials.

USCIS does not evaluate this requirement based on a single document. Rather, adjudicators look for a consistent, corroborated narrative built from multiple, independent sources of evidence. The most persuasive petitions typically include an employment verification letter from the foreign entity, on company letterhead, specifying the employee's exact job title, dates of employment, a detailed description of duties, hours worked per week, salary, and the name and title of the signing official. This letter alone, however, is rarely sufficient. USCIS regulations and internal policy guidance make clear that adjudicators expect objective, third-party corroboration wherever it reasonably exists, such as foreign payroll records, pay stubs, income tax filings or wage statements, social security or social insurance contribution records, and employment contracts. Additional supporting evidence such as organizational charts showing the employee's place within the foreign entity, business cards, performance reviews, work visas or resident permits used abroad, and travel or entry/exit records confirming the employee's physical presence in the foreign country during the claimed employment period can further strengthen the record, particularly where local recordkeeping practices make formal payroll documentation harder to obtain.

Equally important is demonstrating that the work performed abroad matches the nature of the visa classification being sought. For L-1A petitions, the evidence must show the employee functioned in a genuinely managerial or executive capacity abroad, not merely that they held an executive-sounding title. For L-1B petitions, the record must establish that the employee's knowledge was "specialized", meaning advanced or proprietary knowledge distinguishing the employee from other workers in the field or within the organization. Job descriptions that use generic or conclusory language ("responsible for managing daily operations") without concrete detail are a frequent source of RFEs, because USCIS looks for specificity: the number and roles of subordinates supervised, budget or resource authority, decision-making scope, and how the foreign role connects functionally to the position the employee will assume in the United States.

Finally, employers should be attentive to continuity and timing. A single missed month, an unpaid leave of absence, or a period of part-time work can interrupt the "one continuous year" requirement, and USCIS has denied petitions where the record showed even short gaps that the petitioner failed to address. Employers should proactively identify and explain any such gaps for example, approved parental leave, medical leave, or a documented transition between related corporate entities, rather than leaving adjudicators to draw their own conclusions. Because supporting documents are often in a foreign language, certified English translations should accompany every submission. Ultimately, USCIS evaluates the totality of the evidence: internal consistency across documents, credibility of the issuing sources, and a plausible, well-corroborated timeline are what transform a bare assertion of foreign employment into a claim USCIS is prepared to accept.

If you have questions about this or any other immigration matter, our office is here to help. Contact us at 703-348-1663 to schedule a consultation.

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