Saving for retirement is a key part of your overall financial planning, and making the best use of tax-favored retirement accounts can make a huge difference in how big your retirement nest egg is. But with all the choices among retirement accounts out there, it can be confusing to figure out whether a Roth IRA is better than other alternatives for retirement saving.

In the following video, Dan Caplinger, The Motley Fool's director of investment planning, looks at how Roth IRAs work and when they're the best choice for your retirement saving. Dan notes that Roth IRAs don't give you the same upfront deduction that regular IRAs offer, but they let you withdraw money in retirement tax-free. As a result, Dan points out that the big question to answer is whether your tax rate now is less than your tax rate will be in retirement. If getting an upfront deduction now wouldn't save you much in taxes compared to the rate you'll pay later, then a Roth IRA is often your best choice. If you're in a high tax bracket now, though, a Roth doesn't make as much sense. Dan concludes that you have to run the numbers and make estimates about future taxes in order to make a smart decision.

How to get even more income during retirement
It's more important than ever to boost your retirement income as much as you can. In our brand-new free report, our retirement experts give their insight on a simple strategy to take advantage of a little-known IRS rule that can help ensure a more comfortable retirement for you and your family. Click here to get your copy today.

Dan Caplinger and The Motley Fool have no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.