I recognize the importance of being able to log in to the QuickBooks Self-employed (QBSE) app to manage your business, Martine. Let's go through some troubleshooting steps to resolve this issue.
Since you mentioned you are not a new user of the QuickBooks Self-Employed app, let's uninstalling and then reinstalling it. This can help eliminate any settings changes that might inadvertently cause issues with logging in. You can download the app again from Google Play or the Apple App Store.
If the issue persists, I recommend logging into your QBSE account via a web browser as an alternative. This way, you can access your QuickBooks Self-Employed account. Here is the link: selfemployed.intuit.com/home.
In addition, you can run reports to get your federal estimated quarterly and annual tax payment. You can check this article as your guidelines: Get quarterly and annual tax info from QuickBooks Self-Employed.
If you encounter any further or have additional question regarding logging in your QuickBooks Self Employed. Feel free to reach to us. We're always here to help!
