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Im sorry. I need clarification. 

My 1099 B from the Fidelity has four funds, two categories each  - short term and long term sales.  The long term sales include inherited funds and dividends that are over a year old.  I have Long term inherited basis, long term dividend investments, and short term dividend investments.  I will do two long term sales 1099B and one short term 1099B per fund.

Do I enter Fidelity's incorrect data to match the 1099B they provided, then select that the basis is incorrect on the form, then when prompted enter the correct basis?  Or do I enter the correct basis in place of the number on the 1099 prior to selecting that the basis provided is incorrect?

Since Fidelity only provided one long term 1099B per fund, I have to add another one so I can report the dividend shares separate from the inherited shares.  In this case, I guess I just put in the correct information because there is not any value on the 1099B to change.