What Is a 'Guaranteed Minimum Income Benefit - GMIB'

A guaranteed minimum income benefit (GMIB) is a type of annuity option that annuitants can purchase for their retirement annuities. When the annuity has been annuitized, this specific option guarantees that the annuitant will receive a minimum value's worth of payments.

BREAKING DOWN 'Guaranteed Minimum Income Benefit - GMIB'

A guaranteed minimum income benefit (GMIB) ensures that an annuitant will receive a payment regardless of market conditions. This minimum payment amount is predetermined by assessing the future value of the initial investment. This option is only beneficial to annuitants who plan to annuitize their annuity.

The GMIB feature is typically found in variable annuities. When a person purchases a variable annuity, they will choose from a variety of underlying investment options. The annuity’s payments, once annuitized, will in part be based on the performance of the underlying investments. Variable annuities appeal to investors because they allow annuitants to participate in market growth. However, market declines can result in the annuity losing value and, consequently, lower annuity payouts.

For example, a GMIB feature may provide the annuity purchaser with the option to receive either a payment based on the actual market value of the variable annuity investment or the value of the initial investment compounding at six percent interest annually. Another type of GMIB feature may guarantee an annuity benefit based on the highest value the investment account ever reached.

Different annuity providers may call the GMIB by different names, such as Guaranteed Retirement Income Program, or GRIP, or Guaranteed Interest account, or GIA.

Advantages and Disadvantages of a Guaranteed Minimum Income Benefit (GMIB)

The Guaranteed Minimum Income Benefit feature is one way to help offset the market risk that comes with investing in a variable annuity. By guaranteeing a minimum level of annuity payments regardless of investment performance, a GMIB feature can provide additional security for retirees who plan to live on their annuity income.

However, add-on annuity benefits such as a GMIB come with additional costs and fees, which can eat into any investment growth. Additionally, there are many complex factors that go into calculating annuity payments, particularly when a GMIB provision is involved. For this reason, it can be difficult to compare the different options offered by annuity providers against one another. Variable annuities also offer a limited menu of investment options, which may not meet the needs of all investors.

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