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Settings: Complete Account Setup

Upload proof of business documentation and integrate the payment processor.

Complete Account Setup

POB Upload

All sellers on AuctionNinja must have a verifiable business registration. Before launching a sale, sellers must upload their proof of business. 


Select “SETTINGS” on the seller dashboard, and then “Proof of Business.” 


Required official business identification includes:

  1. Business Name
  2. Business address
  3. Taxpayer Identification Number (TIN)
  4. Proof of Legal Business Existence (submit one):

  - Articles of Incorporation or Organization

  - Federal Tax ID Certificate

  - Business License

  - Voided Business Check

  - Qualified Professional License

  - State Resale Certificate or Exemption Certificate

  - City, County, or State Business Registration

  - D.B.A Certificate

  - Qualified Bank Statement with Business Name as account holder

Payment Processors 


Stripe.com

  • Easy sign up 
  • Inexpensive
  • Easy to get help with the integration process

Authorize.net

  • Extra security
  • Better for high-price items
  • Better card verification system 

Sign up for either Stripe.com or Authorize.net. 


CLICK HERE for Stripe integration instructions. 


Click HERE to read about integrating Authorize.net.