I am completing turbo tax on line and realized I counted my mortgage interest twice. How can I go back and correct this?

[JulieR]

Yes. You can revisit the entries you made. Open your return and type "1098" into the search box and click on the "Jump to" link that will take you to that section of your return. Click the "Edit" button next to the lender's name and review/correct your entries. 

Please comment if you need additional help with this.