Can a 2022 IRA to Roth Conversion be reversed?

[DavidD66]

No.  A Roth IRA conversion made on or after January 1, 2018, cannot be recharacterized (reversed).  

[Thomaston345]

Are there any exceptions to the rule?

[DavidD66]

No.  According to the IRS:

Can I recharacterize a rollover or conversion to a Roth IRA?

Effective January 1, 2018, pursuant to the Tax Cuts and Jobs Act (Pub. L. No. 115-97), a conversion from a traditional IRA, SEP or SIMPLE to a Roth IRA cannot be recharacterized. The new law also prohibits recharacterizing amounts rolled over to a Roth IRA from other retirement plans, such as 401(k) or 403(b) plans.