What you will want to do is this - Go back to the Itemized Deductions section where you entered this information (top tab "deductions and credits" under Federal Taxes and review everything while you are there to make sure everything was entered correctly. At the very bottom, if it all looks good, click on "Done with Deductions". Let the system run its check, then click continue when its done. This next page will show you your Total Deductions and Credits, click "continue". Then, on this next page, if all was entered correctly and you were previously selected as "Single", it should tell you that it has chosen Itemized Deductions for you.
