Get your taxes done using TurboTax

Try entering nothing at all if the system will not allow you to enter 0.

Run the review again.

If this does not clear the error, try:

1. Delete the Sch SE that applies--(Sch SE-T is for Taxpayer, Sch SE-S for Spouse)--by following these steps:
   1. From the left menu, select Tax Tools.
   2. Select Tools.
   3. Scroll to Delete a Form.
   4. Scroll to Sch SE-T and/or Sch SE-S and select Delete.
2. Return to the self-employment income & expenses interview in the Income & Expenses section and select Edit/Add.
   1. Select Edit for your business.
   2. Scroll down to Done so that the Sch SE is recalculated. 
   3. Finish any other questions in the self-employment interview and click Continue.
3. Review the return again.

If this does not clear the error, then click this link for more information: 

Workaround for Sch SE-T error for deferring Self-Employment Taxes.

@thomascain47