I'm to return to my home country after working in the US on a visa. I left in March. Am I able to file my taxes for next tax years early and receive the payment early?

I've filed my 2019 tax return and have been working in the US for two years. I was thinking about closing my bank account to avoid fees. It currently is only open to allow the tax return of 2020 so would like to know if it could be filed early?

Thanks