Crescent Law | H-1B Extension
Extending Your H-1B Status in Seattle

Whether you're approaching the end of your initial three-year period or nearing the six-year maximum, understanding extension rules is essential to maintaining your work authorization.

Crescent Law | H-1B Extension
Extending Your H-1B Status in Seattle
Whether you're approaching the end of your initial three-year period or nearing the six-year maximum, understanding extension rules is essential to maintaining your work authorization.
Understanding H-1B Extensions
H-1B status is initially granted for up to three years and can be extended for an additional three years, for a total maximum of six years. Extensions must be filed by the sponsoring employer before the current period of authorized stay expires. For many professionals in the Seattle area working at major tech companies and startups, the extension process becomes a routine but critically important step in maintaining lawful status and employment authorization.
How to File an H-1B Extension
Determine Extension Eligibility
Confirm that the worker has remaining time within the six-year maximum or qualifies for an extension beyond six years under AC21 provisions. Review the current I-94 expiration date and plan filing timelines accordingly.
File a New LCA if Needed
If the job terms have changed, such as a new worksite within the Seattle metro area, a significant change in duties, or a change in wage level, a new Labor Condition Application must be filed and certified before the extension petition is submitted.
Prepare and File Form I-129
The employer files Form I-129 with USCIS along with the certified LCA, evidence of the continuing employment relationship, and documentation of the worker's maintained status.
Continue Working During Pendency
If the extension petition is filed before the current I-94 expires, the worker is authorized to continue working for the same employer for up to 240 days while the petition is pending, even if the I-94 expiration date passes.
Extensions Beyond Six Years
Under Sections 104(c) and 106(a) of AC21, H-1B workers may extend beyond the six-year limit if they are the beneficiary of an approved I-140 immigrant petition, or if at least 365 days have passed since the filing of a PERM labor certification or I-140 petition. These provisions are particularly relevant for Seattle professionals who have begun the green card process but face lengthy backlogs due to per-country limits.
H-1B Extension Timeline
| Milestone | Recommended Timing |
|---|---|
| Begin planning for extension | 6 months before I-94 expiration |
| File LCA with DOL | 4 to 5 months before expiration |
| File I-129 extension with USCIS | At least 3 months before expiration |
| 240-day extension begins (if applicable) | Day after I-94 expiration if petition is pending |
| Latest safe filing date | Day before I-94 expiration |
Milestone
Begin planning for extension
Recommended Timing
6 months before I-94 expiration
Milestone
File LCA with DOL
Recommended Timing
4 to 5 months before expiration
Milestone
File I-129 extension with USCIS
Recommended Timing
At least 3 months before expiration
Milestone
240-day extension begins (if applicable)
Recommended Timing
Day after I-94 expiration if petition is pending
Milestone
Latest safe filing date
Recommended Timing
Day before I-94 expiration
Employer Responsibilities During Extension
- File the extension petition before the worker's current I-94 expires
- Maintain the public access file with updated LCA information
- Continue paying the worker at least the required wage throughout the process
- Keep records of all filings and approvals
- Notify USCIS of any material changes in employment terms
Need Help with an H-1B Extension?
Crescent Law helps Seattle professionals and employers manage the extension process, including complex scenarios involving beyond-six-year extensions under AC21.
Frequently Asked Questions
What happens if my H-1B extension is filed late?
Can I stay in the U.S. beyond six years on H-1B?
Do I need to leave the U.S. if my extension is pending but my I-94 has expired?
Can my employer file for premium processing on an extension?
Ready to Move Forward?
Whether you are a professional exploring your visa options or an employer building a global team, we are here to help you navigate the process with clarity and confidence.
Submitting a consultation request does not create an attorney-client relationship. Legal services provided by Crescent Law.