The Taxation of Retirement Saving: Choosing Between Front-Loaded and Back-Loaded Options
We examine retirement savers’ choices between front-and back-loaded tax incentives, such as traditional and Roth IRAs. With equal dollar contribution limits, back-loaded plans shelter more funds than front-loaded plans. This implies that Roth IRAs can be the preferred choice even for investors who expect their tax rates to fall in retirement. Empirically, we examine how marginal tax rates have varied between 1982 and 1995 for a sample of taxpayers and calculate both ex ante and ex post effective tax rates on front-loaded IRAs. The average effective tax rate on traditional IRA contributions made in 1982 and withdrawn in 1995 was -30 percent. Changes in tax law after 1982 reduced tax rates considerably. Holding tax law constant, the average effective tax rate on IRAs was about -11 percent. These results occur because the tax rate in retirement is lower for most people than the rate while working. In contrast, the effective tax rate on Roth IRAs is always zero. Despite the lower average effective tax rate on traditional IRAs, many taxpayers in the sample would have benefited from contributing to a Roth IRA instead of a traditional IRA, due to the difference in effective contribution limits.
Volume (Year): 54 (2001)
Issue (Month): n. 3 (September)
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- James M. Poterba & John B. Shoven & Clemens Sialm, 2000. "Asset Location for Retirement Savers," NBER Working Papers 7991, National Bureau of Economic Research, Inc.
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