State tax filing

First, I would recommend that you review your input in the wages section. 

TurboTax will calculate the excess withheld and generate the refund for the excess SDI.

1. Go to Income & Expenses
2. Go to Wages
3. Select Edit to the right of each W-2 forms.
4. Scroll down to box 14.  This is where you should have entered your SDI amounts.

If you have entered the amounts in this section for each W-2 Form, you will be able to proceed through the screens to electronically file you return.