Can I change my withholding percentage after I have submitted a withdrawal request?

No. Once the distribution has been requested, the election is final. If the withholding ends up being too much or too little, there will be a reconciliation when filing your tax return the following year.

Betterment is not a tax advisor, and the information provided here should not be construed as tax advice. It should only be used for informational purposes. Please consult a qualified tax professional to determine the rules that apply to your individual tax situation.