https://www.irs.gov/coronavirus/get-my-payment
I read yesterday that one has until noon May 13 to provide banking information for electronic check. I just went to the site with my basic info a few minutes ago and the final screen notified me that my check would be mailed on May 15, so I didn't get what I expected. I usually pay by paper check when money is due anyway.
Edit: My tax return is filed electronically and any payments due go by snail mail.
