The IRS also has a copy of the form. The IRS gets upset when you don't report income. They don't mind you reporting extra. So, you have two choices:
1. your method, change the 1099-R
2. enter it as other income with a description
Both methods work and it is your return so go with your gut. Keep your paperwork showing what happened forever (or 3 years after the money is gone).
To enter as other income:
1. go to the federal income section
2. scroll to the bottom
3. Miscellaneous Income, 1099-A, 1099-C, Start
4. Scroll to the bottom
5. Other reportable income, Start
6. Other taxable income?
7. Select YES
8. Description 401k rolled to ROTH
9. Amount, enter your amount
10. Continue
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