So, box 10 and 11 were blank on your original return?
These boxes won't likely impact your federal return. Box 10
may
impact your state return.
Click Amend from the Tax Timeline and go through the amending process to revisit the 1099-DIV. After you enter it with these boxes, you will be asked about the exempt-interest dividends.
If you don't have a state tax return, don't bother.
