https://ttlc.intuit.com/community/taxes/discussion/1098-ca/01/19079#M8225 Bought home in CA, May 2018 for ~1.1M. How do we calculate the CA mortgage interest adjustment? Mon, 11 Mar 2019 00:33:39 GMT Oafanad 2019-03-11T00:33:39Z https://ttlc.intuit.com/community/taxes/discussion/1098-ca/01/19079#M8225 Bought home in CA, May 2018 for ~1.1M. How do we calculate the CA mortgage interest adjustment? Mon, 11 Mar 2019 00:33:39 GMT https://ttlc.intuit.com/community/taxes/discussion/1098-ca/01/19079#M8225 Oafanad 2019-03-11T00:33:39Z https://ttlc.intuit.com/community/taxes/discussion/re-1098-ca/01/19095#M8226 TT will figure it out for you when you input the mortgage interest in the step x step approach Mon, 11 Mar 2019 02:16:44 GMT https://ttlc.intuit.com/community/taxes/discussion/re-1098-ca/01/19095#M8226 NCperson 2019-03-11T02:16:44Z https://ttlc.intuit.com/community/taxes/discussion/re-1098-ca/01/19097#M8227 Unfortunately, TT is asking me to input the California Mortgage Interest Adjustment manually. So, I'm looking specifically for how to calculate it using my 1098. My schedule A, box 8, doesn't show me any reduced mortgage interest deduction. Does that mean federal accepted all of it? Even though the loan was in excess of $750K? Mon, 11 Mar 2019 02:39:29 GMT https://ttlc.intuit.com/community/taxes/discussion/re-1098-ca/01/19097#M8227 Oafanad 2019-03-11T02:39:29Z https://ttlc.intuit.com/community/taxes/discussion/re-1098-ca/01/19107#M8228 From what I have seen, TT is using a two point average to assess the mortgage interest , so it sees your mortgage as half it’s value as the average given it is a new mortgage Mon, 11 Mar 2019 11:28:47 GMT https://ttlc.intuit.com/community/taxes/discussion/re-1098-ca/01/19107#M8228 NCperson 2019-03-11T11:28:47Z