If you believe you were misclassified as an independent contractor, but were really should have been classified as an employee, you will need to enter your 1099-NEC as shown here. On the page, What type of income if your 1099-NEC?, choose the option that it is income that should've been reported on a W-2.
After you enter in your 1099-NEC details, answer all the relevant follow-up questions. You will need to download and mail For SS-8.
Then, TurboTax will fill in Form 8919 and report the income on your return for you on the following pages.
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