how is a gmwb calculated 
the amount available for withdrawal may also link to a policy holder s age when they begin to make withdrawals for example the rider agreement may allow you to take 4 of your investments if you begin taking withdrawals between the ages of 60 and 64 income increases to 4 5 if you start taking them between the ages of 65 and 69 withdrawals after the age of 70 can be at 5 before the age of 59 withdrawals from the annuity may be subject to early withdrawal penalties of 10 by the internal revenue service the terms of gmwb riders including fees vary depending on the provider which is typically an insurance company other available annuity riders include guaranteed lifetime withdrawal benefits and guaranteed minimum accumulation benefits 