Top-up Tax declaration
The cantons are responsible for assessing the Top-up Tax.
Top-up Tax declaration
As a company obliged to pay tax, you are required to submit a top-up tax return electronically via the federal government’s ePortal. If you have any questions regarding registration, deregistration and declaration of the Top-up Tax, please contact the tax administration of the relevant canton.
Top-up Tax
Top-up Tax declaration
Registering and deregistering
Register your company for the Top-up Tax online on the federal e-Portal, where you can also deregister yourself. If you have any questions about registering and deregistering, please contact the tax administration of the relevant canton.
Top-up Tax
Registering and deregistering
Technical support
If you have any technical questions, please contact
Technical questions - Schweizerische Steuerkonferenz SSK (omtax.ch).
Contact
If you have any questions, please contact us using the contact form.
Federal Tax Administration FTA
Main Division DAS
Eigerstrasse 65
3003 Berne