fbpx

< Back to Thought Leadership

Investment Interest Expense is Still Deductible, but that Doesn’t Mean You’ll Benefit

As you likely know by now, the Tax Cuts and Jobs Act (TCJA) reduced or eliminated many deductions for individuals. One itemized deduction the TCJA kept intact is for investment interest expense. This is interest on debt used to buy assets held for investment (such as margin debt used to buy securities). But, just because you have investment interest expense, doesn’t mean you will necessarily benefit from the deduction.

3 Hurdles

There are a few hurdles you must pass to benefit from the investment interest deduction:

  1. You must itemize deductions. In the past this might not have been a hurdle, because many taxpayers typically had enough itemized deductions to easily exceed the standard deduction. But, the TCJA nearly doubled the standard deduction, to $24,000 (married couples filing jointly), $18,000 (heads of households), and $12,000 (singles and married couples filing separately) for 2018. Plus, some of your other itemized deductions, such as your state and local tax deduction, might be smaller on your 2018 return because of TCJA changes. Therefore, you might not have enough itemized deductions to exceed the standard deduction and benefit from itemizing.
  2. You can’t have incurred the interest to produce tax-exempt income. For example, if you borrow money to invest in municipal bonds, which are exempt from federal income tax, you can’t deduct the interest.
  3. You must have sufficient “net investment income.” The investment interest deduction is limited to your net investment income. For the purposes of this deduction, net investment income generally includes taxable interest, nonqualified dividends and net short-term capital gains, reduced by other investment expenses. In other words, long-term capital gains and qualified dividends aren’t included. However, any disallowed interest is carried forward. You can then deduct the disallowed interest in a later year if you have excess net investment income.

You may elect to treat net long-term capital gains or qualified dividends as investment income in order to deduct more of your investment interest. But if you do, that portion of the long-term capital gain or dividend will be taxed at ordinary-income rates.

Will Interest Expense Save You Tax?

As you can see, the answer to the question depends on multiple factors. Please contact your Blue & Co. tax advisor, and we can review your situation and help you determine whether you can benefit from the investment interest expense deduction on your 2018 tax return.

one big beautiful bill act

Tracking the ‘One Big Beautiful Bill Act’: House Passes, What’s Next?

By Amy L. Sandlin, CPA, Tax Quality at Blue & Co. The “One Big Beautiful Bill Act” (H.R. 1) narrowly passed the House on May 22, 2025, and headed to […]

Learn More
Therapy Compliance in SNFs: What Administrators Need to Know | Nurse in pink scrubs working with elderly

Therapy Compliance in SNFs: What Administrators Need to Know (Part One)

In Skilled Nursing Facilities (SNFs), therapy services—physical, occupational, and speech therapy—play a vital role in resident recovery, rehabilitation, and quality of life. However, beyond achieving clinical outcomes, therapy departments must […]

Learn More
not-for-profit board members meeting

Serving on a Not-for-Profit Board: A Guide to Success

By Robert J. Findley, CPA, Director at Blue & Co. Serving on a not-for-profit Board is an excellent way to give back to the community, support organizations whose mission is […]

Learn More