In my prior installment of this series (Family Law Tip #2), I discussed the substantial reduction in the allowable amount of mortgage interest which is now tax deductible on any mortgage taken out after December 15, 2017.   The 2017 Tax Cuts and Jobs Act reduced the deductible amount by $250,000 on homes purchased after the cut off date - capping the allowable interest deduction to mortgage principal of $750,000 (reduced from $1,000,000 prior to December 15, 2017).  Beyond the lower mortgage cap, another big change is that, in general, the interest on home equity lines of credit is no longer deductible (with some very limited exceptions). This is true regardless of whether the home equity line of credit was taken out before or after the change in tax law.

These changes to the allowable mortgage interest deduction will have a bearing on the decision of divorcing parties as to whether to keep their second residence post-divorce.  In the past, people often kept the second residence, in part knowing that they were able to deduct the mortgage and home equity line of credit interest on their tax returns and the maximum amount of $1,000,000 in indebtedness allowed for flexibility.  In the advent of the Tax Cuts and Jobs Act, some will have to rethink this decision.  If the expenses related to their vacation homes cannot be deducted, the cost to maintain the home will be higher.

While there was some back and forth in the various drafts of the tax code revisions, ultimately the deductions for the mortgage interest apply to both the primary residence and a second home as well.  However, as stated above, the $750,000 cap makes it more likely that parties will not be able to deduct all of the interest on the mortgages for the primary residence and secondary residence when those amounts are combined.  Consulting your attorney and accountant will help you to determine the actual increase in the cost of maintaining your vacation home so that you can make an informed decision.