Get your taxes done using TurboTax

First, revisit the section for the Self-employment tax deferral entry:

1. Return to the Deductions & Credits section.
2. Scroll to Tax relief related to COVID-19 and Show More.
3. Select Self-employment tax deferral and select Revisit.
4. Answer Yes at the next screen to get back to Let's start by getting your eligible income.
   1. If you do not want to defer any self-employment income, "Enter your eligible self-employment income" should be blank.
      1. Select Continue.
   2. At Tell us how much you'd like to defer, "Enter amount" should be blank.
      1. Select Continue.
5. Scroll down and select Wrap up Tax Breaks and Continue.
6. At Charitable Cash Contributions under Cares Act, if you made cash donations to eligible organizations, enter the amount up to $300 for all taxpayers except married filing separate, who would each have a maximum of $150 and Continue. Otherwise, leave this section blank, do not add 0 if this is not applicable.
7. I recommend running through the Federal Review again

Just to confirm, reporting Form 1099-K on Schedule C is when you are operating a trade or business. If Form 1099-K was from selling personal items, much like from a garage sale, then there is another way to report that income.

If that applies to you, first, delete Self-employment income & expenses completely by returning to that section and clicking the trash can icon.

Then, follow these steps:

1. From the left menu, go to Federal and select the first tab, Wages & Income
2. Add more income by scrolling down to the last option, Less Common Income, and Show more
3. Scroll down to the last option, Miscellaneous Income, 1099-A, 1099-C and Start
4. Choose the last option, Other reportable income and Start and Yes
5. Enter the applicable description and amount and Continue
   • First, enter Form 1099-K as received. It is essential that the full amount be entered. Be sure to include in the description: Personal Property Sales (For example, the entries were Description Personal Property Sales and 100)
   • Next, repeat this process with the cost of the items sold. The IRS allows a deduction for personal property up to the amount of the sale.
     • You should be at Other Miscellaneous Income Summary with the Personal Property Sales amount listed.
     • Select +Add Another Income Item on the lower left side.
     • At Other Taxable Income enter Cost of Personal Property for description and the negative amount and Continue. (To continue with the example, the amount would be -100.)
     • Now returned to Other Miscellaneous Income Summary, select Done.

[Edited 02/20/2021 | 5:15 AM PST]

@user3143