This is partly due to the availability of delaying taking distributions. Any other eligible designated beneficiary must begin taking Required Minimum Distributions (RMDs) by the end of the year following the year of the original IRA owner’s death. The spouse beneficiary may defer distributions to the year in which the deceased would have reached RMD age, which would be 73 or 75 these days, without taking any action.
In addition, any other eligible designated beneficiary besides the spouse is required to take the RMDs over his or her fixed-term single-life expectancy, while the spousal beneficiary can choose to take the RMDs over his or her single-life expectancy recalculated annually, so that the distributions will actually stretch out over his or her entire life. The fixed-term single-life expectancy often winds up ending sometime in the beneficiary’s 80’s.
The best part of all is that the surviving spouse beneficiary can choose to rollover the IRA to an IRA in his or her own name, which could have the effect of delaying the start of RMDs even further, if the spouse beneficiary is younger than the decedent. When this option is chosen, the surviving spouse could also choose to roll the IRA into a Qualified Retirement Plan (QRP) such as a 401(k). If the surviving spouse is still working for this employer past regular RMD age, RMDs could be delayed even further – up until the surviving spouse retires.
An added bonus to the option of the surviving spouse using a rollover, he or she can name another designated beneficiary of this rolled over IRA, providing flexibility to the overall process. Plus, with an IRA in his or her own name, when the time comes to begin RMDs, the surviving spouse can use the Uniform Lifetime Table (instead of the Single Life Table) which will allow for further stretching of the benefits, potentially far beyond his or her lifetime.
I specifically noted above that the spouse is in a superior position to other eligible designated beneficiaries. For any non-eligible designated beneficiaries, there’s not even a comparison since these beneficiaries are required to drain the inherited IRA within 10 years at the very most, no other options.