$5,500 nondeductible contribution made to as traditional IRA in February 2019 for 2018 tax year. Short time later, the nondeductible IRA was converted to a Roth IRA. Small taxable gain. Turns out, he was eligible for a 2018 Roth due to being below the income limits.
Can the Roth Conversion be undone and then have the traditional IRA contribution for 2018 changed to a Roth contribution? It would mean a small savings on the taxes on the gain on the conversion. I do not think the Roth conversion can be undone because of the tax law change for 2018. Correct?