The purpose of this paper is to provide a closer examination, through formal analysis, of the decision to allocate some portion of a person's pre-tax disposable income in any given year to funding a contribution to either a Deductible Individual Retirement Account (IRA) or Roth IRA. A particular focus is the effect (if any) of the ex ante selection of post-retirement distribution method on the optimal choice of IRA plan. We analyze formally the Deductible versus Roth IRA decision by considering the three possible basic scenarios (as identified in Horan, 2003) for the dollar allocation from pre-tax disposable income in any given year.