The Recovery Rebate Credit is based on your 2020 federal tax return, your filing status and your 2020 AGI.
IRS website for the Recovery Rebate Credit - https://www.irs.gov/newsroom/recovery-rebate-credit
If we issued you the full amount of each Economic Impact Payment, you won’t need to claim the Recovery Rebate Credit or include any information related to it when you file your 2020 tax return because we already issued your Recovery Rebate Credit as Economic Impact Payments.
If you’re eligible for the credit, and either we didn’t issue you any Economic Impact Payments or we issued less than the full amounts, you must file a 2020 tax return to claim the Recovery Rebate Credit even if you are not required to file a tax return for 2020.
Economic Impact Payments were based on your 2018 or 2019 tax year information. The Recovery Rebate Credit is similar except that the eligibility and the amount are based on 2020 information you include on your 2020 tax return.
