I need to change the company name on a 1099 that was already filed with IRS

Welcome to the Community, @east.

Let me share some information about changing the company name on a 1099 that was already filed with the IRS in QuickBooks Online (QBO).

First, check the filing status of the form. If it has been rejected by the IRS, you can fix and resubmit the 1099-NEC or 1099-MISC forms rejected through QuickBooks Online.

If you have e-filed your 1099s through QuickBooks Online, QuickBooks Contractor Payments, or QuickBooks Online Payroll, you may receive an email stating that the IRS has not accepted your e-filings. This could be due to errors in your company's legal name, Employer Identification Number (EIN), or Social Security number (SSN), or because one or more contractor addresses are incorrect. To fix these errors and resubmit your 1099s, you must void the original forms, update any incorrect information, and then e-file the forms again. 

Moreover, if the status of your 1099 form is "Accepted," you will need to file an amendment form in QBO. However, there are currently no official instructions on how to file an amended form.

Also, I collated some articles that you can read to help learn what 1099 forms there are and how you can prepare for the upcoming tax season also, learn how to add contractors and track payments you make to them:

• Set up contractors and track them for 1099s
• Get answers to your 1099 questions

If you have additional questions about amending 1099s in the program, just reply in the thread. I'm always here to help. Have a great day!