I had a short term job where I was hired as a contractor. I was fired for something I didn't do. After I was fired the company wanted me to give them my home address. The agreement was I would be paid by etransfer so they had no need. The manager sent me daily emails demanding my address but finally they paid me.
Recently the manager sent a bulk email saying they need everyone who has worked for them to fill out a form with their personal information. She said it's for tax reasons, specifically to get a T4A. I don't trust the company and don't want to provide the information. Some of the requested information seems reasonable, others I'm skeptical. For example my dob, gender, martial status.
Must I provide any information to a company to aid them in doing their tax? Is it valid for a company to ask for a SIN (aka SSN) from a contractor? Why would a company ask for all this long after the job had started?