Use these links below to find out form availability.
IRS forms availability table for TurboTax individual (personal) tax products
State forms availability table for TurboTax individual (personal) tax products
It just says they are updating how SEP an Simple IRA Contributions are reported on the tax return based on new guidance from the IRS. Check Back. Does that mean they are waiting on forms?
No, they are working through the meaning of an IRS Notice. On January 8, 2024 (i.e., just two weeks ago) the IRS released a notice describing many changes required to implement the Secure Act 2.0 - I believe that this is what "We're updating how SEP and simple plan contributions are reported on the tax return based on new guidance from the IRS." is referring to.
Indeed, Section 601 of the Secure Act 2.0 refers specifically to Simple and SEP Roth IRAs. Code S in box 12 refers to how to handle a SIMPLE plan.
These last minute IRS (and law) changes inescapably cause delays on the part of TurboTax and other tax processors.
It will take time for TurboTax to understand all the ramifications of this IRS Notice and then code and test the changes. The IRS is not open for filing until January 29th so you have some time to wait.