Nobody is required to make estimated payments. The only reason to do so is if you would have an under payment of tax and have a underpayment penalty. For a RMD you can just ask the IRA custodian to withhold enough tax to cover the tax, such as 20% is you expect to be in the 20% tax bracket.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
