In the past, if you were already signed in to your Google Account, we'd automatically give you access to your AdSense account without needing to sign in again. Due to a recent fix for an issue, this automatic sign-in feature was temporarily disabled. However, we're working on a permanent solution that will resolve the original issue and also allow this automatic sign-in process to work correctly.
In the meantime, if you're already signed in to your Google Account, simply click on the "Take me to my account" link. (If you click on the link and aren't signed in, you'll see another sign-in page.)
Why am I being asked to migrate to a Google Account? I already did this.
We want to point out that some publishers have been experiencing an issue with getting stuck in a Google Account "migration loop." This occurs when the original AdSense email address and password match their existing Google Account email address and password. In other words, if you signed up for AdSense before we asked everyone to update to Google Accounts, and then you later created a Google Account with the same email address and password (and haven't changed the password since), then unfortunately you're encountering a bug in our Google Accounts migration code. This is something that we're working to fix.
Fortunately, there's an immediate solution to this issue. If you're stuck in this Google Account migration loop, simply visithttps://www.google.com/accounts, sign in, and then change your Google Account password to something different than what you're currently using. In addition to being a good password management practice, you'll eliminate the migration loop with this change.