Social Security mails out SSA1099 in January so watch your mailbox. Or you can go to your online account with SS to get it.
Go to www.ssa.gov You have to create an account with a user name and password.
https://www.ssa.gov/myaccount/replacement-SSA-1099.html
https://www.ssa.gov/onlineservices/
https://www.ssa.gov/myaccount/