Yes. You need to get the election filed now if you want it effective 1/1/2022.
I also recommend you send the election certified mail return receipt requested. This is your insurance policy that the election was mailed should the IRS ever question it.
Having said that, hopefully you have discussed this issue with a tax professional and you understand the pros and cons of each entity structure.
The 2021 tax return is a separate matter and based on your facts of no income or expenses, no form 1065 would be required for 2021.
*A reminder that posts in a forum such as this do not constitute tax advice.
Also keep in mind the date of replies, as tax law changes.
