How do I find the 1099-R tab on 2018 Turbotax Business? All the answers that you offer are for Turbotax and NOT for Turbotax BUSINESS.

Try the following:

1) Click the Federal Taxes tab and then click "Income".

2) Click the Start (or Update) button to the right of "Other income or loss".

3) On the Other Income page, enter "1099-R Box 2a" as the description (see first screenshot).

4) Enter the amount treated as ordinary income in Box 2a under "Amount" and click the Continue button.

5) Go into Forms mode (upper right side of screen). 

6) Under "Forms in My Return" (upper left side of screen), look for "Form 1041" and click that form.

7) Ensure that the Box 2a amount appears on Form 1041, Line 8, Other income. (see second screenshot).