The net investment income tax, or NIIT, is an additional 3.8% tax ... you should file IRS Form 9465 or apply online for an installment agreement. Ultimately, the driving force on investment ...
It’s possible to pay your taxes with a credit card, but you typically have to pay a fee that’s slightly under 2% of the total transaction. For example, a 1.75% fee on a $10,000 payment would ...