Mainstay Investments

MainStay Portfolio Login

Returning Users

Once you have established Online Account Access, please enter your User ID and Press "Login" below.

New Users

If you are a new user, click on Establish User ID. You will need your MainStay account number and Social Security Number or Tax Identification Number (TIN). Once you have created your User ID and Password, you will be able to access your account(s).


Updated Security

Your online security is always a top priority. Due to that we have just implemented a new security service to further protect your account from unauthorized access.


In order to access your account you will be asked to complete a one-time personal security profile in which you will select a personal security image and image caption. You will also answer three security questions.


Each time you login, your security image and image caption will be displayed. When you see them, you will know that you can safely enter your password and that you have accessed the MainStay Investments website.

MainStay Retirement Plan

If your MainStay account is part of a retirement plan, please click on Plan Access to continue.