This is related to USA and California tax: in 2012, I can deduct $40,000 of mortgage interest for personal income tax, and the same for 2013. However, since I worked only for 2 months in 2012, and the wages of $25,000 is less than the $40,000, so the deduction kind of "go into waste" because it only helps out to reduce for the wages of $25,000. For 2013, if the wages was $150,000, then can I only apply the $40,000 for 2013? Are there ways to make the 2012 mortgage interest apply partly towards 2013? Or any other ways?
(And what if the mortgage company or if the loan is a private loan, and the lender agrees that some arrangements can be made, such as paying 4 months of the 2012 mortgage payments in January 2013 instead? But if I didn't do it, I guess there is nothing I could do after the fact.)