The TIN is required when filing 1099, atmcontracting.
The IRS also requires this information to track payments. It can be either a Social Security Number (SSN), or an Employer Identification Number (EIN). In addition, we're unable to electronically file the 1099 form if it's missing.
Here's a guide about Form 1099-MISC. You can also read these articles for more details:
I'm always here if you need more help about 1099.
