How do I determine what entry the system needs me to check?--- "Form 1099-B Worksheet (xxx): Cost or Adjusted Basis (Positive Amounts Only) must be entered."

Turbo tax does not allow negative numbers in 1099-B box 1d

Some brokers  now reports losses of short options on 1099B as a negative number for proceeds in box 1d and a zero value for cost basis, rather than separate values for cost basis and proceeds that show a loss. 

The broker explanation is: "We are now updating our reporting of short options on the 1099-B to reflect how the IRS is now requesting that these transactions be reported.  In this new format, the cost basis and proceeds for short options is consolidated into Box 1d in a net amount."

To be able to post a negative value to form 1099-B box 1d follow these steps.

1. Select the option for a 1099-B
2. Select to type it yourself

1. Enter Bank
2. I'll enter one sale at a time

1. Enter the stock data and leave 10d BLANK
2. When you hit Continue you will get a RED error message
3. At the bottom of the screen select Allow me to continue with incomplete information. [Continue]
4. Any less common items will be blank.  Select Done

1. No this is not employee stock

1. Select the last item An adjustment is required for reasons not already covered.
2. Enter the negative number that you had in Box 1d.
3. This will complete the transaction.

From <https://turbotax.response.lithium.com/console/agent/5784093?>

I have the same problem. The current answer does not help as my 1d value is positive. I've tried entering the total cost basis for my 1099-B statement including non-covered securities. However, TurboTax doubles my cost basis, which is not right. What value should I enter? Total covered and non-covered securities cost basis or total IRS reportable cost basis for covered securities. Is this the value that we are to check? Please clarify what is needed. Thank you.

Me too.

The screen takes several minutes to come up, and when it does a small box with a long list of transactions appears.  No indication of which one is the problem.

Please review the following FAQ regarding this concern: How to fix 1009-B negative values.