In addition to being a licensed loan originator, I am a paid tax preparer and I'd be happy to answer some more specific questions that you might have.
Taxes and mortgages are a lot similar in the sense that they are unique to each individual's circumstances which is why you want to inquire more specifically. Did you have a particular topic in mind?
With that being said, there are many tax advantages available to the individual that may or may not be available to the Investor.
http://www.irs.gov is a great way to research the topic as well.....go straight to the horses mouth, so to speak.