You have not mentioned what specific transactions you are doing with your Vanguard accounts---for many transactions, such as retirement account distributions, etc. you can have Vanguard withhold the estimated tax and send you the rest of the money. Talk to Vanguard so they can explain to you.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
