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API Reference

Employer sign an employee's Form I-9

put
https://api.gusto-demo.com/v1/employees//i9_authorization/employer_sign

Sign an employee's Form I-9 as an employer. Once the form is signed, the employee's I-9 authorization is considered complete and cannot be modified.

Prerequisites

Before calling this endpoint:

  1. The employee must have a completed I-9 authorization
  2. The employee must have signed the Form I-9
  3. I-9 verification documents must be submitted

Related guides

scope: i9_authorizations:manage

Path Params
string
required

The UUID of the employee

Body Params
string
required

The signature

string
required

The signer's job title

string

The IP address of the signatory who signed the form. Both IPv4 AND IPv6 are supported. You must provide the IP address with either this parameter OR you can leave out this parameter and set the IP address in the request header using the x-gusto-client-ip header instead.

boolean
required

Whether you agree to sign electronically

string

Any additional notes

boolean

Whether an alternative procedure authorized by DHS to examine documents was used

Headers
string
enum
Defaults to 2026-02-01

Determines the date-based API version associated with your API call. If none is provided, your application's minimum API version is used.

Allowed:
string

Optional header to supply the IP address. This can be used to supply the IP address for signature endpoints instead of the signed_by_ip_address parameter.

Responses

Updated about 1 month ago

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Updated about 1 month ago