Did your company handle apartment-finding/ house hunting for you or did you do it on your own? While you aren't a permanent resident, are you treated as a permanent resident for tax purposes?
Regarding tax, it doesn't change. There aren't any breaks nor special levees for foreigners/people with just a work-visa. You get taxed the same (you can even participate in ふるさと納税 [furusato-nōzei] which is a system where you can decide to pay a certain amount to a different prefecture for tax deductions the following year + a gift from the prefecture that you can pick. The gifts are the best part; you can get high grade Japanese beef, high quality fruits, etc).