Do i have to report my Roth IRA created in 03/30/2021 on my 2020 tax return? Looks like my MAGI is 271,000

If your MAGI is 271,000, it is too high for a Roth IRA contribution. However, simply creating an account does not require any reporting on your tax return.  

So if I don't use my contribution this year for 2020 return, will I just use it next year on my 2021 return?

I don't anticipate having a MAGI as high this year when I do 2021 return next year.