Complete guide to H-1B visa stamping at U.S. embassies. Required documents, interview preparation, common questions, and processing times.
Last updated: April 2026 · Disclaimer: This guide is for informational purposes only and does not constitute legal advice. Consult a licensed immigration attorney.
Visa stamping is the process of obtaining an H-1B visa stamp in your passport at a U.S. embassy or consulate. The stamp is required for entering the U.S. from abroad. If you changed status to H-1B while inside the U.S. (e.g., from F-1), you have H-1B status but no visa stamp — you'll need stamping before any international travel. The stamp is typically issued for the duration of your H-1B approval period.
Bring to your visa interview: valid passport (6+ months validity), DS-160 confirmation page, visa appointment confirmation, I-797 approval notice, original LCA, employer support letter with job details, resume/CV, original degree certificates and transcripts, recent pay stubs (last 3 months), W-2s or tax returns, company profile/brochure, and photos meeting embassy specifications. Carry originals — embassies may not accept photocopies of key documents.
The interview is typically brief (5-10 minutes). Key tips: answer questions concisely and directly, be prepared to explain your role in simple terms, know your employer's business and your project, bring all supporting documents organized, dress professionally, arrive early, don't volunteer unnecessary information, and be honest — any misrepresentation can result in permanent visa denial.
Some applicants receive a 221(g) refusal — this means the embassy needs additional information or background checks before issuing the visa. Common for technology workers, researchers, and certain nationalities. Processing times vary from 2 weeks to several months. You can check your case status online. If you're subject to administrative processing, plan your travel accordingly and inform your employer about potential delays.
You need a valid visa stamp in your passport to re-enter the U.S. after international travel. Exception: automatic visa revalidation allows travel to Canada or Mexico for 30 days or less without a new stamp (with restrictions).
Ideally, your home country embassy. Third-country stamping is possible but carries risks — the embassy may refuse and you'd be stuck outside the U.S. Some embassies have faster processing and interview slots than others.
Typical processing is 3-5 business days after the interview, assuming no administrative processing. With 221(g) administrative processing, it can take 2 weeks to several months. Plan accordingly.