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Thank you for your question! Revenue Ruling 2002-62, 2.03(b) allows a one time change to the Minimum Distribution method if the current plan was based on either the Amortization or Annuitization methods.
Other than that, any change you make once you have begun drawing payments may make you susceptible to retroactive interest and penalties. SOURCE
Please let me know if you need anything additional. If you don't want monthly payments, perhaps set them to an account which you draw out the funds with the frequency you desire.
Please let me know if you need anything additional. Thanks again for using JustAnswer.com and have a happy, and safe 2013.
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You should be aware that your question, as with most tax questions, can never really be answered completely...addressing all the permutations; that is because of the many assumptions that have to be made I have done my best to determine what I think you are asking and answering it in the most direct and understandable manner possible. If, however, after reviewing the questions, you have any uncertainties or further questions, please do not hesitate to ask.