I'm involved in a case and I'm trying to prove that a small private company had hired someone during a particular time frame. The name of the employee is irrelevant. It just has to be proved that they did hire someone during X month of X year.
What document proves this though? What document do I ask from the company, which contains information about when exactly that company hired a new person?
I have heard of "annual reports" which contain information like employee-count. So if you can compare the annual reports of 2 consecutive years and see that the report in 2019 was 49 and the report in 2020 was 50, you can prove that 1 person was hired. But apparently private companies are not required by law to file annual reports.
What mandatory document do they file can I use then? Do they report their employee count on their income tax forms?
Edit: The jurisdiction is Ontario, Canada.