An annuity is a contract between an individual and an insurance company that allows one to invest money in order to receive regular income payments either immediately or in the future that cannot be outlived. There are two main types of annuities - immediate annuities that begin income payments within 12 months, and deferred annuities that allow accumulating money on a tax-deferred basis before receiving income. Fixed annuities guarantee a specific rate of return while variable annuities have the potential for greater growth through market investments and carry more risk. Annuities provide tax-deferred growth and income, but come with various fees that can reduce returns. Common reasons for purchasing annuities include guaranteed lifetime income, tax-deferred growth