Businesses are now required to report to the IRS whenever there are changes to contact info – responsible party, address etc.
This from the Form 8822-B instructions:
Beginning January 1, 2014, any entity with an EIN must file Form 8822-B to report the latest change to its responsible party. Form 8822-B must be filed within 60 days of the change. If the change in the identity of your responsible party occurred before 2014, and you have not previously notified the IRS of the change, file Form 8822-B before March 1, 2014, reporting only the most recent change. Complete Form 8822-B as appropriate; use applicable boxes 8a through 9b to report any changes to the identity of your responsible party.