Appendix B — Life Expectancy Tables. IRA or Plan Beneficiary. ˚e life expectancy will then be reduced by one year for each succeeding year. IRA or Plan Beneficiary. The life expectancy tables are in appendix C of IRS publication 590, Individual Retirement Arrangements. Section 7520 of the Internal Revenue Code requires the use of a set of actuarial tables for valuing annuities, life estates, remainders, and reversions, for all purposes under Title 26 except for certain purposes stated in the statute or provided by regulation. On Thursday, November 7, the Service released 122 pages describing proposed regulations which will modify Required Minimum Distributions (RMDs). each year and recalculate life expectancy. Table I (Single Life Expectancy). Beneficiary’s age; Owner’s age at birthday for year of death Life Expectan­cy (in years) Age of. For 2021, taking into account the life expectancy tables under the proposed regulations and applying the transition rule, the applicable distribution period would be 12.0 years (the 14.0 year life expectancy for a 76 year old under the Single Life Table in the proposed regulations, reduced by 2 years). A non-spouse bene˜ciary cannot recalculate and would only use this table to compute the ˜rst year’s required distribution for the inherited IRA. That factor is reduced by one for each succeeding distribution year. The following charts display the proposed changes in RMD factors. The following life expectancy table, compiled from information published by the Office of the Actuary of the Social Security Administration, is provided as a tool to assist in making those decisions with appropriate assumptions. The new rules must be understood by those whose provide advice regarding RMDs – including post-mortem RMDs. A period life table is based on the mortality experience of a population during a relatively short period of time. Table III (Uniform Lifetime). Single Life Expectancy RMD Table (for Inherited IRAs) (For cal­cu­lat­ing post-death required distributions to beneficiaries) (From IRS Pub­li­ca­tion 590) Age of. The increase in factors reflects the increased life expectancy When the time comes to make your first withdrawal -- the year after the account owner dies -- look up your age in Table I, "Single Life Expectancy." Table II (Joint Life and Last Survivor Expectancy). Life Expectan­cy (in years) Age of. 2020 Single Life Expectancy Table. You can find the publication on the IRS website. Designated beneficiaries use this Single Life Expectancy Table based on their age in the year after the IRA owner's death. You would use the IRS Single Life Expectancy Table to calculate your first RMD. It shows the average number of years of life expectancy remaining for individuals at various ages. IRA or Plan Beneficiary. These tables are included to assist you in computing your required minimum distribution amount if you haven't taken all your assets from all your traditional IRAs before age 701/2. If the original owner died on or after reaching age 72, you would use the lower of the following along with its corresponding life expectancy factor. Under the new single life table effective that year, her life expectancy (“divisor”) will be 29.7 years, resulting in a $33,670 2021 RMD from the inherited IRA.