Please see this Stimulus Calculator: Stimulus check calculator.
If you have filed a 2018 or a 2019 tax return that includes bank account information you should receive your payment via direct deposit to that account in the next week or so.
If you filed a 2018 or 2019 tax return without bank information your check will be mailed. Based on information we recently received IRS is currently working on a link to check on the status of your stimulus payment. Please check this link for updates as they are available: Covid-19 Updates
If you have not filed a 2018 or 2019 tax return because you were not required to file, you can use this link to register for the Stimulus Payment: Register for a Stimulus Check.