The U.S. subsidiary pays the Form I-129 filing fee, the fraud prevention and detection fee, the asylum program fee where applicable and optional premium processing, at amounts in the current USCIS fee schedule, Form G-1055. Attorney fees and the cost of documenting the placement are additional.
The expensive part is the evidence, not the filing
Government fees for an L-1B petition are set out in the USCIS fee schedule and vary with the employer's size and the processing option; quote the schedule, not a remembered figure. The larger cost is usually professional. An offsite placement adds a separate evidentiary issue, so the company should budget for a licensed U.S.
immigration attorney to document both the specialized knowledge and the petitioner's continuing control rather than relying on a thin initial filing. Internally, someone has to assemble training records, procedure histories and escalation tickets, which is staff time. The client relationship also has a cost: the service agreement may need an addendum clarifying supervision, and the client's legal team may want to review it.
Add relocation, housing near the client site, the family's L-2 applications and health coverage. If the company expects a second placement later, preparing the specialized-knowledge package as a reusable internal document is money well spent.