If you filed a 2021 return with income missing then you need to prepare and file an amended return to add those 1099's. You have not mentioned what kinds of 1099's --- there are almost two dozen different kinds. If you need help with where to enter them post back for assistance.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-2021-return/L1gEU4G3X_US_en_US?uid=lajteavb
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
