https://www.irs.gov/
use the view my account link.
but considering the IRS may be shorthanded and thus slow in processing checks it may be a while before it posts. you actually had til 7/15/2020 to make payment for balance due on '19 return. ist '20 estimate due 6/15/2020
as a last resort call the iRS buy be prepared for a long hold time.
