I want to change the email I login with

[Rob Bruce]

I know my login is to an account, and I can see that I can change the email on the account, but does that change the email that I login with?

Most of my trello access is through an old personal gmail. I know want the same boards to be available through my small business gmail (a different google account). Can I do this?

When I tried to change the email associated with my account, I got an email to the new emailid but when I tried to login I got totally confused about what emaiid/password I was meant to be using and couldn't find a combination that worked. 

I have an unmanaged Atlassian account.

[Brant Schroeder]

@Rob Bruce Welcome to the Atlassian community

Per Atlassian's documentation, it does.  https://support.atlassian.com/trello/docs/changing-an-email-address/