Form 8832 Election timing

My partner and I formed a LLC in 2021 but we have not actually started the business so we have no income or deductions so I don't believe we need to file a tax return for 2021. Now we plan to actively start the business in 2022 and we are considering filing form 8832 to be treated as a C corp but I'm a little confused as to when to file form 8832. 

 

The instruction says "Generally, an election specifying an eligible entity’s classification cannot take effect more
than 75 days prior to the date the election is filed, nor can it take effect later than 12 months after the date the election is filed. " If we want to be treated as a C corp for 2022, does it mean I have to file form 8832 right now? But how do I do that if I don't file a tax return for my LLC for 2021? Or should I wait till next year when we file our tax returns for 2022?

 

Thanks in advance for your help!