Carrier onboarding is what happens between a freight broker agreeing to work with a new carrier and that carrier getting its first load. In practice, it means collecting a signed agreement, a W-9, a certificate of insurance, and confirming the carrier's operating authority, before dispatch will assign anything.
For a worked example of this workflow, see how a freight broker onboards carriers with WoltSign. For the broader operations context, review WoltSign operations workflows and document workflow routing.
What is carrier onboarding, in practice
Carrier onboarding is a compliance and paperwork checkpoint, not a sales step. The broker already agreed to work with the carrier. What onboarding confirms is that the carrier is insured, registered, and under contract before a truck gets assigned to a load.
Skipping or rushing this step is what creates liability exposure later, specifically around insurance coverage gaps and authority that was never actually confirmed.
What is in a carrier packet
A standard carrier packet has four parts. Each one blocks dispatch if it is missing:
- Broker-carrier agreement. The signed contract covering rates, liability, and terms of the working relationship.
- W-9. Required for tax reporting before the broker can pay the carrier.
- Certificate of insurance (COI). Proof of current cargo and liability coverage. This is the document most often missing or expired.
- FMCSA authority number.The carrier's MC or DOT number, collected as part of the packet so the broker can verify it against public FMCSA records.
Why carrier onboarding gets stuck
The common failure pattern looks the same across brokers: the agreement goes out by email, the carrier replies with a signed scan, then asks where to send the W-9, then sends the COI in a separate message days later. Someone on the operations side has to track which of the four documents each carrier has actually submitted.
A missing COI is the single most common delay. Dispatch will not, and should not, assign a load to a carrier without current insurance on file, so an incomplete packet leaves an otherwise-ready carrier idle.
How to structure a digital carrier onboarding workflow
The fix is bundling the four documents into one signing session instead of four separate threads. A carrier onboarding template with a signature field for the agreement, fillable W-9 fields, a required attachment field for the COI, and a text field for the FMCSA authority number lets a carrier complete everything in a single link.
Gating dispatch on a completed status, rather than a verbal confirmation that documents “should be in,” removes the guesswork. Nothing moves to a first load until the envelope shows every field filled and the COI attached. See the full carrier onboarding workflow example for how one freight broker set this up.
What to check before assigning the first load
- Agreement is signed by an authorized carrier representative.
- W-9 fields are complete and legible.
- COI is attached and coverage dates have not lapsed.
- FMCSA authority number is on file and verified against public records.
If any of these four are missing, the packet is incomplete regardless of how quickly the carrier responded on the rest.
FAQ
Frequently asked questions
Short answers to the questions teams ask most often about this topic.
What is carrier onboarding?
Carrier onboarding is the process a freight broker or shipper runs before assigning a new carrier its first load. It typically means collecting a signed broker-carrier agreement, a completed W-9, a certificate of insurance, and confirming the carrier's FMCSA operating authority.
What is in a carrier packet?
A standard carrier packet includes the broker-carrier agreement (signed), a W-9 for tax reporting, a certificate of insurance showing current cargo and liability coverage, and the carrier's MC or DOT number for FMCSA authority verification. Some brokers add a rate confirmation or safety questionnaire.
Who verifies a carrier's FMCSA authority?
The broker verifies the carrier's authority number against public FMCSA records separately from the signing process. A carrier onboarding form can collect the authority number as a required field, but the lookup itself happens outside the document.
Why does carrier onboarding usually take several days?
When the agreement, W-9, and COI arrive through separate email threads, someone has to track which documents are in and which are missing for each carrier. A missing certificate of insurance is the most common holdup, since dispatch cannot assign a load without current coverage on file.