Troubleshoot: Error registering my USPS Postage (Endicia) account

Created:   |   Updated:

If you are running into an error when setting up a USPS Postage (Endicia) account, there are a few things that might correct this:

Are you using a post code with a zero "0" in front?

Temporarily replace the zero "0" with another digit for the purposes of account signup. After creating your account, you can update your "Contact Information" and "Billing Information" with Endicia at We have more information on our Knowledge Base: How can I update my Endicia account billing details?

Does your phone number have any dashes or parenthesis?

Remove all formatting and retry.

Are you using a PO Box?

Use the street address of your post office instead and omit the PO Box. Use USPS Post Office locator to find the street address.

Are you using your company's name?

Use your legal name instead.


If you continue to run into errors, feel free to reach out to our Customer Success team.  
  • Paid subscribers will see links to email, call, or chat in the left hand corner in app. 
  • Starter subscribers can email

Please provide the following details:

  • Your legal name
  • Your billing address
  • Your phone number


Related articles:

What is Endicia?
Why is my card being declined when I try to purchase postage?
What rates does ShippingEasy offer on USPS shipments?
How to: Update my Endicia account billing details


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