You can update your address and phone number yourself once you sign in via "Sign in | Register" on the website or in the SIXT App. Two things need us: your account email address (your login) and a name change — just send us a quick message and we'll take care of it.
What you can change yourself
In your account:
Add or change your home address
Add or change your phone number
Delete your account
In your booking profiles:
Add or change your billing address
Change the booking profile's email address
Add or change your payment method
Create a new profile
Deactivate a profile
How to make changes
Sign in on the website or in the SIXT App via "Sign in | Register"
Open your account or profile area
Update the relevant field and save
Your account email address (login)
The email address you sign in with can't be changed yourself. Just send us an email using the contact options below, and we'll update your login address for you.
Good to know: the email address in a booking profile is separate, and you can change it yourself at any time (see above).
Name change
You can't change your name yourself (for example after marriage or divorce). Message us on live chat with your rental agreement number and proof of the name change (for example a marriage certificate, deed poll, or updated driving licence), and we'll update your name for you.
Still need help? Find our contact options below.
You can delete your SIXT account yourself at any time – on the website or in the SIXT app. Before deleting your account, please complete any active rentals and download all important invoices.
How to delete your account
Sign in on the website or in the SIXT app
Click your name in the top right and select "Personal data"
On the Account page, scroll to the bottom and click "Delete account"
Confirm the action – your account will be deleted
What happens when you delete your account
Your SIXT ONE points and status will be forfeited
Active and upcoming bookings are not automatically cancelled when your account is deleted – please manage these separately in advance
Before you delete your account
Complete or cancel any active bookings
Download and save your invoices and booking confirmations
Still need help? Find our contact options below.
At SIXT, you get everything in your preferred language — website, booking confirmation, rental agreement, and invoice. You don't need a separate language setting in your account.
The language simply depends on which SIXT website you use:
sixt.co.uk → English
sixt.es → Spanish
sixt.fr → French
Would you like your documents in a different language?
You can do this at any time, including for an existing reservation or a hire in progress:
Open the website in your preferred language. The quickest way is via the globe icon at the top right (where you see your current country and currency, e.g., "UK | £") and select your preferred country. Alternatively, go directly to the country website, for example sixt.co.uk for English.
Log in with your usual credentials. It's the same account — you'll see all your bookings there.
Under "Manage trip," you'll now find your booking confirmation, rental agreement, and invoice in the language you want.
Good to know: The emails we send you right after booking are always in the language of the website you booked on. If you need a different language, simply download the documents under "Manage bookings" as described above.
Still need help? Find our contact options below.