Retirement annuity plan is a financial product that ensures regular income to retirees in later years most often issued and distributed (or sold) by an insurance organization. The main idea behind this product is to provide retirees the opportunity to attain income after retirement. A 'Retirement annuity plan (RAP) is a type of retirement plan similar to IRA that provides a stream of regular (single) distributions to an insured retiree. Time intervals between distributions as well as their amount are defined by conditions and type of the annuity between issuer organization and client. Nowadays many types of retirement annuities are offered on the market.