"Is it legal…"
The Workplace is not a substitute for proper legal advice. If your question asks us to tell you whether or not a specific situation is legal, or to interpret the law to let you know what to do, we aren't going to be able to help you and strongly suggest you consult an attorney.
If your legal question could be answered by an HR professional (not a lawyer), then it may be okay here. Asking about payroll tax may be okay, but asking if you can retrieve unpaid employer tax contributions that were not paid after you were terminated is something you will have to ask a lawyer.
Before asking a question about the law, think to yourself, "Is this something that comes up regularly for people in the workplace?" If not, you should probably consult an attorney rather than asking it here.
Sample questions that fall in to this category:
- Was it legal for my employer to fire me?
- Can I sue my employer if they do not honor a verbal agreement?
- Can my employer enforce a contract with an illegal provision in it?
Despite this prohibition there is a legal component in almost everything we do in the workplace. As such questions that are asking for facts about the law or how perform some action that is legal are on topic.
Sample questions with a legal component that are on topic:
- What is required to take extended leave using FMLA Protections?
- Under what circumstances should my employer be required to pay me overtime?
- A former employer refuses to grant my relieving letter how do I proceed?
For more information on legal questions please refer to this answer to another question:
We need to make a distinction between questions about what the law is and questions about how the law should be applied to a particular situation. I think the former are valid questions here and the latter are trouble waiting to happen...