Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content What It Takes to Become an Accredited Investor What does it take to be an accredited investor? Explore the details, & the types of investments offered to those who qualify. You May Need to Make Estimated Tax Payments If… Have income that isn’t subject to tax withholding? Or insufficient withholdings? You may have to pay estimated taxes. Put It in a Letter A letter of instruction provides additional and more personal information regarding your estate.