The Pennsylvania Online Business Entity Registration (PA-100) has been replaced with myPATH.
Starting on November 30, 2022, customers will use myPATH’s "Pennsylvania Online Business Tax Registration" service, available at mypath.pa.gov, to register a business entity with the department.

Can I view and print registrations submitted via the PA-100 from this site?
Yes. Registrations that have been submitted on this application are available to view and print.