Investors & landlords

If I do NOT itemize my deductions -> Do I end up losing on the margin interest expenses completely? Given my dividends/interest INCOME exceeds the margin interest expenses:

1) Can I not subtract my interest expenses from the net investment income - and thereby reduce tax liability?

OR

2) since I am okay with taking standard deduction, can I chose to carry forward my margin interest expenses into the next year?

 

Am I going to lose all the benefit of margin interest paid if I do not itemize my deductions this year?