You can update your billing address on the SIXT website or in the SIXT app within your booking at any time — both before pick-up and after return. A tax ID cannot be added online; please contact us via WhatsApp or Live Chat and we'll add it for you.
How to add or update your billing address
Sign in on the SIXT website or open the SIXT app
Open My Bookings and select the relevant rental
In the Your information section, click Add billing address
Enter the company name and address and save
Tip: In the Profile section, you can save your company details and billing address as defaults — they will then be applied automatically to future bookings.
Add a tax ID
A tax ID cannot be added via self-service on the SIXT website or in the SIXT app. Message us on WhatsApp or Live Chat with your rental agreement number and the correct tax ID — we'll add it and send you an updated PDF invoice by email
Corporate rentals with a fixed billing address
For corporate rentals with a fixed billing address on file, changes cannot be made online. Message us on WhatsApp or Live Chat with your rental agreement number — we'll check whether an update is possible
Next step
Update your billing address under My Bookings on the SIXT website or in the SIXT app, or contact us via WhatsApp or Live Chat
Still need help? Find our contact options below — please have your rental agreement number ready.
","articleSection":{"heading":"Invoices and receipts","subheading":"","articles":[{"text":"When is my SIXT invoice available and how do I download it?","href":"/help-center/articles/when-is-my-sixt-invoice-available-and-how-do-i-download-it/","content":"Download your SIXT invoice as a PDF at any time on the SIXT website or in the SIXT app under My Bookings. Final invoices are available within 3 days of return; prepaid receipts are available immediately after booking.
How to download your invoice
Sign in on the SIXT website or open the SIXT app
Open My Bookings and select the relevant rental
Tap Invoice and download the PDF
Invoice format
PDF with full tax details
Includes your rental agreement number as a unique reference
Tip: You can also view the invoice amount and payment date directly in your booking overview under Payment information and Price overview.
Next step
Download your invoice under My Bookings on the SIXT website or in the SIXT app.
Still need help? Find our contact options below — please have your rental agreement number ready.
","actions":[{"key":"FAQ.bookingList","displayValue":"Manage booking"}]},{"text":"How do I change the tax details or address on my SIXT invoice?","href":"/help-center/articles/how-do-i-change-the-tax-details-or-address-on-my-sixt-invoice/","content":"You can update your billing address on the SIXT website or in the SIXT app within your booking at any time — both before pick-up and after return. A tax ID cannot be added online; please contact us via WhatsApp or Live Chat and we'll add it for you.
How to add or update your billing address
Sign in on the SIXT website or open the SIXT app
Open My Bookings and select the relevant rental
In the Your information section, click Add billing address
Enter the company name and address and save
Tip: In the Profile section, you can save your company details and billing address as defaults — they will then be applied automatically to future bookings.
Add a tax ID
A tax ID cannot be added via self-service on the SIXT website or in the SIXT app. Message us on WhatsApp or Live Chat with your rental agreement number and the correct tax ID — we'll add it and send you an updated PDF invoice by email
Corporate rentals with a fixed billing address
For corporate rentals with a fixed billing address on file, changes cannot be made online. Message us on WhatsApp or Live Chat with your rental agreement number — we'll check whether an update is possible
Next step
Update your billing address under My Bookings on the SIXT website or in the SIXT app, or contact us via WhatsApp or Live Chat
Still need help? Find our contact options below — please have your rental agreement number ready.
","actions":[{"key":"FAQ.bookingList","displayValue":"Manage booking"}]},{"text":"Can I get a SIXT invoice for a reservation I never used?","href":"/help-center/articles/can-i-get-a-sixt-invoice-for-a-reservation-i-never-used/","content":"For unused Prepaid reservations, the original receipt for the amount retained serves as your invoice. For Flexi reservations that were not picked up, no invoice is usually issued. With certain rates or corporate contracts, a no-show fee may apply — in which case you will receive a separate invoice by email.
Prepaid no-show
The original receipt remains your invoice and can be downloaded under My Bookings on the SIXT website or in the SIXT app.
Flexi no-show
No invoice is usually issued. With certain rates or corporate contracts, a no-show fee may apply — you will receive a corresponding invoice by email.
Next step
Download your receipt, cancellation confirmation or credit note under My Bookings on the SIXT website or in the SIXT app.
Still need help? Find our contact options below — please have your rental agreement number ready.
","actions":[{"key":"FAQ.bookingList","displayValue":"Manage booking"}]}]},"currentArticleIndex":1}}