The most significant change in 2017 was the passage of the in December, which altered long-term homeownership benefits. Mortgage Interest Deduction (MID) :
Publication 936 (2025), Home Mortgage Interest Deduction - IRS home buying incentives 2017
: Prior to the 2017 reform, interest on up to $100,000 of home equity debt was deductible regardless of how the funds were used. The most significant change in 2017 was the
For loans taken out , homeowners could deduct interest on up to $1 million of mortgage debt. For loans after this date, the limit dropped to $750,000 . interest on up to $100