Tax law deal with the rules, policies and laws that oversee the tax process and can involve charges on estates, property, transactions, income, licenses and more by the government. This area is extremely complex and ever changing, so an attorney practicing in this field must be on top of his game and continually keep up with all the amendments to the tax law. There are also many entities that are entitled to collect taxes, from the Federal level to the city or township level. The Federal tax practice has its own court and is a very detailed practice.
As a tax attorney, you may represent clients in tax disputes or may assist clients to navigate the intricate laws. If you are interested in this field, you could explore the option of getting your LLM in Taxation, which may give you an edge in your job search.