Hi blackoak100,
That is a good question. You must report any amount converted from a traditional to a Roth IRA on your federal income tax return. Unless you choose otherwise, the IRS requires 10% of the conversion amount be withheld for federal income tax purposes. Use Form 2210 to determine the amount of underpaid estimated tax and resulting penalties as well as for requesting a waiver of the penalties.
Conversions must be reported on Form 8606, Part II. Form 1099-R must be entered into TurboTax for the program to populate Form 8606. The way to enter the IRA conversion can be found on the website below.
https://ttlc.intuit.com/turbotax-support/en-us/help-article/retirement-benefits/enter-backdoor-roth-...
Hope this answers your question. Feel free to reply if you have any additional questions.
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