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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Replacing Your Medicare Card Learn how to replace your lost, stolen, or damaged Medicare card in this helpful article. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? Systematic Withdrawals in Retirement Taking regular, periodic withdrawals during retirement can be quite problematic.