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API Reference
These docs are for v2025-11-15. Click to read the latest docs for v2026-06-15.

Create Company Attachment and Upload File

post
https://api.gusto-demo.com/v1/companies//attachments

Upload a file and create a company attachment. We recommend uploading PDF files for optimal compatibility. However, the following file types are allowed: .qbb, .qbm, .gif, .jpg, .png, .pdf, .xls, .xlsx, .doc and .docx.

Related guides

scope: company_attachments:write

Path Params
string
required

The UUID of the company

Body Params

The binary payload of the file and the company attachment category.

file
required

The binary payload of the file to be uploaded. Supported file types are .qbb, .qbm, .gif, .jpg, .png, .pdf, .xls, .xlsx, .doc and .docx.

string
enum
required

The category of a company attachment.

  • gep_notice: A tax notice attachment
  • compliance: A compliance attachment
Allowed:
Headers
string
enum
Defaults to 2025-11-15

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

Allowed:
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