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 Split Annuity Strategy Here's one strategy that combines two different annuities to generate income and rebuild principal. Is a Variable Annuity Right for Me? Pundits go on and on about how “terrible” or “wonderful” annuities are, but they never talk about whether annuities are right. How Much Home Can I Afford? With a few simple inputs you can estimate how much of a mortgage you may be able to obtain.