How To Submit W9 For US Corporations (S-Corp/ C-Corp) & Registered Partnerships

DISCLAIMER: Traxsource does not provide tax, legal or accounting advice. This material has been prepared for informational purposes only, and is not intended to provide, and should not be relied on for, tax, legal or accounting advice. The examples contained herein are likewise for informational purposes only. You should consult your own tax, legal and accounting advisors before engaging in any transaction and you should also consult your own advisors if you have any questions regarding information to submit to complete any U.S. tax forms


Our new Online process makes submitting your W-9 form a literal breeze 🙌.  It should take you around 2 minutes to complete it.  


  • All U.S. Tax Identification Numbers (TIN) we receive are verified through the IRS E-Services System, so please be sure you enter your TIN accurately.  TINs that fail to match IRS records will cause your account to be suspended until a valid tax form is received.
  • The person completing this form must have the legal capacity to sign for the company.  As the Authorized Person, please review the below steps to help you navigate through the online form.


Gather the  following information which will be required to complete the form:

1- The Full Legal Name of the Corporation or Partnership: As it appears on the company tax returns.

2- Company Address: Please note, this address will be listed on your 1099 tax form each year.  If your address changes, please submit a new form to avoid delays in receiving your annual 1099 and insure your information is up to date in our system.

4- Employer Identification Number (EIN): Click Here for full W-9 IRS instructions

Once you have gathered the required information above, Login to your Traxsource account and follow the steps below to submit your tax form:

* Please note, in order to submit tax form, you must first have completed a payment method.  For help with this step please click here.


1- Login to The Traxsource Label & Content System here

2- Click on "My Company Info" from the Top Left Menu

3- Click on the "Payments and Tax Info" Tab

4- Click on "Submit A Tax Form"



5- Select “I am a U.S. Person” and Click on “Continue”



6- Enter your company’s name as it appears on your business tax returns

7- Enter your company’s address

8- Part II - Taxpayer Identification Number:  

  • Choose your company type: C=C corporation, S=S corporation or P=Partnership
  • Enter your company’s tax Identification number:  Employer Identification Number (EIN).  

9- Click on “Continue”



10- Review the summary of your taxpayer information.

11- Part II - Certification: Be sure to complete all the certifications for the form 

12- Type your name to indicate you are certifying the information you have provided on the form.

13- Click on “Complete W-9” to Submit your form




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