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How do I change the tax details or address on my SIXT invoice?

Invoices and receipts

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

  1. Sign in on the SIXT website or open the SIXT app

  2. Open My Bookings and select the relevant rental

  3. In the Your information section, click Add billing address

  4. 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.

Still need help?
Contact our support team.