For year 2020, you are considered as a US resident for tax purposes. You will be filing a Form 1040 and report worldwide income.
If you came to US before 2010, you are considered as exempt, not counting days for five years from year of 2010 to 2014. Starting from January 1st 2015, if you stay in the US for at least 183 days or meet the Substantial Presence Test SPT, you will be considered as a resident. To learn more about SPT, click here: Substantial Presence Test
@sallydoihs
For states, generally, you will file based on the regular filing requirements. It is based on how many days you reside within the state in the year. Every state has it's own rules for visa holders which is different than the IRS rules. I will suggest you to contact your states for verification. Click here: States or read here: Personal Income Tax Brochure for PA
@Pikachu123
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