Foreign Earned Income Exclusion Consecutive Months to Calendar Year

Hi everyone!

 

In February I amended my 2019 tax return to gain the FIE for the time I lived in the Netherlands (08/2019-08/2020). I moved to Italy 08/2020, am still here, and am reasonably expecting to remain here/in Europe for the next few years, so I'm expecting to continue claiming the FIE. I was wondering though, how can I move back to a calendar year? Can I wait to file my 2020 tax return so that it covers from 08/2020 to 12/2021? Am I stuck doing my taxes August to August forever now?

 

I know I can file normally now and do another amended one later or request an extension until August, but I'm just wondering if it's possible to include the few extra months needed so I can go back to the normal January-December schedule?