How do I go about closing my mom's account? She passed away 3 months ago, but I'm not on the account.

did your mom list any beneficiaries on her account?

Mal8888 I'm sorry for your loss. You probably will have to go through Probate. They will give you letters that allows you to conduct business for your mom. You would take the letters and the death certificate to open an Estate account in her name. If there are no debts owing, after a time you can close the account. After paying fees and maybe taxes , whatever is left would go to you.