Is 1 million the max tax deductible loan?

[Vinson Lee]

HI All,

I'm confused about something that I'm hoping you guys can help explain.

I've heard that generally when you are buying a primary residence that the interest one only 1million dollars of your loan would be tax deductible.  But I also hear that you can deduct an extra 100,000 some how.  I guess I'm confused about that extra 100,000.  Lets say I get a loan for 1.1million now.  Is there anything that I have to do special to be able to deduct that extra 100k?  Or do I do nothing and then come tax time just enter all the interest into the right box in turbotax?  In other words do I have to call out somewhere or split out somewhere the extra 100k.  Let me know if my question makes any sense. 

Thanks