The U.S. also has an “investment interest expense” deduction[1]. Normally this is used with margin interest, but if any other type of loan (e.g. credit card adv

The U.S. also has an “investment interest expense” deduction[1]. Normally this is used with margin interest, but if any other type of loan (e.g. credit card advance) is taken out specifically to invest in securities, interest on said loan becomes deductible investment interest as well. [1] https://www.irs.gov/pub/irs-pdf/p550.pdf https://www.irs.gov/pub/irs-pdf/p550.pdf