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What happens if I try to use my Google account with an email that already exists on taxx.lu?
If you attempt to sign up via your Google account with an email address already associated with an existing taxx.lu account, the system will ask you to sign in with your usual password. You'll get the following error message: You cannot link the Google login to an existing account.Few readersCan I change my login method after creating my account?
If you created your account with your Google account: You can always sign in via your Google account If you have a traditional account: You must continue using your email and password It is currently not possible to switch from one method to another after account creation.Few readersIs the Google account login secure?
Yes, the Google login uses standard security protocols (OAuth 2.0) and only gives taxx.lu access to the basic information needed (name, email address). Your Google password is never shared with taxx.lu, and your tax data remains protected according to our usual security standards.Few readersWho can use the Google login?
The Google login is only available for new users creating their taxx.lu account for the first time. If you already have an existing taxx.lu account, you must continue using your usual email address and password to sign in.Few readersI forgot whether I have an existing account, how can I check?
If you're not sure whether you already have a taxx.lu account: Try to sign in with your usual email address If an account exists, use the "Forgot password?" option If no account exists, you can create a new account using your Google account, or simply using your email address and a password You will get an error message if the email associated with your Google account has already been used for a user account on taxx.lu: ![](https://storage.crisp.chat/users/helpdesk/website/-/1/c/5/f/1c5fcFew readersI already have a taxx.lu account, can I use the Google login?
No, the Google login is not available for existing accounts. You must continue to sign in with: Your current email address Your taxx.lu password This limitation ensures the security of your tax data already stored in your account.Few readersHow do I create a new account with my Google account?
Important: This procedure is only for new users. If you already have a taxx.lu account with email and password login, this option will not be available. On the taxx.lu homepage, click "Login" at the top right: On the login page, click "Continue with Google": ![](https://storage.crisp.chat/users/helpdesk/website/-/1/c/5/f/1c5fc819171ffd00/screenshot-2025-09-15-at-1Few readers
Email Address
How can I change my email address ?
First you need to log in to your taxx.lu account, then go to the settings. At the top of the page you will find the function "Change the email address". Then under "Confirm changes", please enter your password and click on "Update".PopularWhy can I no longer access my account?
When you create an account on taxx.lu, you will receive an email with a link to confirm your email address. If you have not confirmed your email address within 3 days, you will no longer be able to log in to your taxx.lu account. The "Forgot your password?" option will not solve the problem. You must click on the "Didn't receive confirmation instructions?" option and then please follow through with the steps that will be shared with you: ![](https://storage.crisp.chat/users/helpdesk/website/Few readers
Password
What do I do if I have forgotten my password?
Go to the homepage and click on "Login" or "Do you have an account? Login now!" A new page opens and you will find at the bottom the function "Forgot your password ?"PopularHow can I change my password?
To change your password, you have to use the "Forgotten password" function. You will receive an email in which you will have to click on a link to change your password. (if you can't find the email, check your spam as well).Few readers