Change Safe Harbor Formula Mid-Year

Can you go from a 3% non-elective Safe Harbor contribution to a flexible (maybe) 3% safe harbor contribution mid year? Would you need to provide a seperate notice for this under SECURE, or can you just make the change when writing the Cycle 3 document?

If you are a "3% yes" in the document, you can't go to "3% maybe" mid-year, you would have to make that change effective the next Plan year.

hmmm, i would answer "we need guidance".

1. We know that we can cease a SH plan mid year.

2. We know that we can adopt SH provision up to 12/1 @ 3%, later @ 4% NEC.

3. We know that we CAN'T switch from SH match to SH NEC.

But i don't think we know that we can't do 1. and 2. in the same year.