Yes, you can convert a SEP IRA to a Roth IRA, but taxes will be owed on the converted amount in the year that the conversion took place. You should receive a 1099-R for the converted SEP IRA. Enter the form under the Retirement section in TurboTax. Type 1099-r in the search/find box of your return then select the 'jump to' link to be taken to the section.
For the Roth IRA contribution, no entry is required as there is no tax deduction. However, you can enter it for basis tracking if you wish under the Deductions & Credit section.
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