All true. I was using “mortgage” too generally and should have been more clear. Any debt on your main home is deductible. Equity lines are sometimes called (probably incorrectly) second mortgages. Also, there is a way to deduct interest on a second home if you live there enough. Thanks for the corrections.
I didn’t want to get into the whole small business thing which is why I specified “personal debt” but this is true too. Interest that is a business expense is deductible as well.
I forgot about student loans. They were deductible, then they weren’t for a while (like when I had mine, dammit) and now they are again.
Good point. You can use your equity line for anything you want, not just for home expenses. A lot of people do that. When I bought my last car, Honda had a 1.5% financing deal so it made more sense to finance it the regular way or I would have done that.
For a long term investment, buying a house where you will live is one of the best things you can do. Get a home inspection to make sure that it’s in good shape first obviously but over twenty years you almost can’t lose in a good area. There are exceptions like East St. Louis I suppose but those are the exceptions.