The Short Answer: Vendor vs. Employer of Record
A C2C vendor verifies your right to work by requiring I-9 documentation and background checks, but they do not become your employer of record (EOR). The end client remains your actual employer for tax and legal purposes. The vendor sits between you and the client as a compliance checkpoint—they collect identity and work authorization documents, pass them through e-verify or similar federal systems, and keep the records. They never sign your W2, pay FICA taxes, or withhold income. That responsibility stays with the client company that actually hired you.
Why This Distinction Matters
The confusion arises because vendors feel like employers when they ask for your information. They don't. An Employer of Record (EOR) assumes legal liability for payroll, employment taxes, workers' comp, and benefits. A C2C vendor assumes verification and compliance liability. If the vendor were also the EOR, they'd be double-billing the client for administrative costs and creating a hidden employment relationship—which defeats the entire purpose of corp-to-corp contracting.
For you, this means: the vendor's right-to-work check is a gatekeeping function, not an employment decision. They're confirming you're legally authorized to work in the US (typically through Form I-9), not hiring you into a W2 position.
How the Right-to-Work Verification Actually Works
- You provide documents. Passport, driver's license, birth certificate, visa, work permit—whatever proves your identity and authorization. The vendor collects these (often through a portal or email).
- The vendor runs I-9 verification. They cross-reference your documents against federal databases (or use a third-party compliance service). E-Verify is common for immediate validation; some vendors use manual review for green card holders or visa holders.
- Background check runs in parallel. Most C2C vendors run a criminal background check and sometimes credit screening, depending on the role's sensitivity. This is separate from I-9 but often bundled in the same onboarding window.
- Clearance decision. Vendor issues clearance (or requests additional documents if there's a mismatch). You proceed to the client's own onboarding, which may include another I-9 verification—clients sometimes do their own despite the vendor's check.
- Records stored by vendor. The vendor retains I-9 forms and compliance records for the contract term, protecting both the vendor and the client from DOL audits. You do not sign a new I-9 with the vendor; your existing documents get verified against federal data.
The key: the vendor verifies what you've already established as a US work-authorized person, but does not authorize you to work. That authorization comes from the US government (green card, visa, citizenship), not the vendor.
Where the Vendor Stops and the Client Begins
Vendor responsibilities: verify documents, run I-9, maintain compliance records, ensure no red flags block the contract start.
Client responsibilities: determine if you're a fit for the role, negotiate rate and terms, manage your day-to-day work, decide if the contract continues.
The vendor has no authority to fire you, approve time off, assign work, or adjust your pay rate. Those decisions belong to the client. Vendors who overstep—assigning tasks, managing your hours, directing your work—are creating an employment relationship and exposing themselves (and the client) to misclassification liability.
What Happens if Verification Fails
If your I-9 or background check doesn't clear, the vendor's job is to stop the contract before it starts. They don't have the authority to waive federal compliance requirements. If you have a discrepancy (name mismatch, citizenship confusion, SSN flag), the vendor will ask for clarification or additional documents. Serious issues—felony convictions, fraudulent documents—end the engagement immediately. This protects the vendor's license to operate and shields the client from liability.
The Practical Implication for Contractors
From your side, the vendor's verification is a compliance hurdle, not a hiring gate. You pass it, the contract moves to execution. Fail it, the contract stops. But passing it does not guarantee a job—the client makes that call. It also means you're entering a contract with clear boundaries: the vendor handles compliance, the client handles work direction.
When filling out C2C applications, you'll often see vendor questions about visa status, work authorization, and rate expectations. GiraffyReach's MCP Agent handles these C2C-specific fields automatically, pulling from your baseline work-auth status and rate card so you don't repeat the same answers across every vendor.
Common Misunderstandings Cleared Up
"Does the vendor count as my employer for the I-9?" No. The client does. The vendor holds a copy for records, but the client's name is on your employment authorization.
"Can a vendor reject me for reasons unrelated to compliance?" Not officially. Vendors defer to the client for fit, skills, and suitability. If the vendor rejects you, it should be compliance-based.
"Do I need a new I-9 if I already have one with another client?" No. Your I-9 is a one-time federal document. Vendors verify your existing authorization; they don't create a new employment record with you.
Why This Matters Now
The C2C market is heating up, and vendors are tightening compliance. Remote work and distributed teams mean more vendors operating across state lines, where I-9 rules get sharper. If you're chasing C2C contracts—especially in tech, finance, or government-adjacent roles—understanding the vendor's limited role helps you move faster and avoid red flags.
The vendor is your compliance broker, not your boss. Keep that line clear, and the contract will flow smoothly. GiraffyReach tracks C2C postings the moment they go live, so you're applying before other contractors even see the listing. Be first, or be forgotten.