Complete guide to H-1B extensions — 3-year renewal, 6-year limit, extensions beyond 6 years with pending green card, and filing process.
Last updated: April 2026 · Disclaimer: This guide is for informational purposes only and does not constitute legal advice. Consult a licensed immigration attorney.
An H-1B visa is initially granted for up to 3 years and can be extended for a total of 6 years. Before your current H-1B period expires, your employer files an extension petition (Form I-129) with USCIS. You should file the extension at least 6 months before expiration to avoid gaps. If the extension is filed before your current status expires and is still pending, you can continue working for up to 240 days under the "240-day rule" while awaiting a decision.
The 6-year limit can be bypassed if you have a pending green card application. Under AC21 Section 104(c): If your I-140 is approved but you can't file I-485 because your priority date isn't current, you can extend H-1B in 3-year increments. Under AC21 Section 106(a): If your PERM labor certification or I-140 has been pending for 365+ days, you can extend H-1B in 1-year increments. These provisions are essential for Indian and Chinese nationals facing long green card backlogs.
The extension process requires: (1) New or recertified LCA from the DOL. (2) Form I-129 with H-1B supplement filed by employer. (3) Filing fees ($1,710 base + ACWIA + fraud fees). (4) Supporting documents: employer support letter, updated job description, recent pay stubs, I-94, passport copy, and any green card related approval notices for beyond-6-year extensions. (5) Premium processing available ($2,805 for 15-day decision).
You can file up to 6 months before your current H-1B expires. It's recommended to file at least 3-4 months early to allow processing time.
Yes, under the 240-day rule, you can continue working for up to 240 days after your H-1B expires if the extension was timely filed (before expiration).
If denied, you must stop working immediately and may need to leave the U.S. unless you have another valid status. Consult an attorney about appeal options or filing a motion to reopen/reconsider.