Privacy Policy

Effective: 1 March 2026 · Last updated: 23 April 2026

1. Data Controller

Avenzo GmbH Hinterbergstrasse 28, 6312 Steinhausen, Kanton ZG, Switzerland UID: CHE-168.920.894 · FINMA register: F01567880 info@avenzo.ch

2. Legal Basis

The processing of personal data is carried out in accordance with:

• The revised Swiss Federal Act on Data Protection (FADP / revDSG), in force since 1 September 2023
• The EU General Data Protection Regulation (GDPR) — where applicable (EU-resident users)

3. Data Collected

3.1 Usage data (avenzo.ch)

When you visit the website, the following data is automatically collected:

• IP address (anonymized)
• Pages visited, time spent
• Device and browser type
• Referring website (referrer)

Purpose: Analysis of user behavior, security, and technical operation.

3.2 Contact data

When you submit a form or contact us by email:

• Name and email address
• Content of your inquiry
• Tax data, insurance details (required to provide the requested service)

Purpose: Processing your inquiry and providing the contracted service.

3.3 App data (/app/)

When you use the Avenzo app:

• Tax and financial data (tax return preparation)
• Insurance details
• Identity verification data (as legally required)

Purpose: Provision of tax and insurance services. All data is stored exclusively in Switzerland (AWS Switzerland region, eu-central-2 Zurich data center).

4. Data Sharing

Avenzo GmbH shares personal data only with:

• Sub-processors (e.g., tax experts, insurance companies) — only to the extent necessary to provide the contracted service
• Authorities — when legally required (e.g., FINMA, cantonal tax authorities when filing on your behalf)
• No data is sold or shared for advertising purposes

5. Data Retention

Data category	Retention period
Tax return data (filed returns, assessments)	10 years (legal obligation under OR Art. 962)
Insurance data	Duration of contract + 10 years
Contact data	3 years after last contact
Usage data (anonymized)	24 months
Anonymous calculator session data (VAT, tax calculators — no account)	Not persisted — discarded after session

6. Your Rights

Under the Swiss FADP and GDPR, you have the right to:

• Access your stored personal data
• Correction of incorrect data
• Deletion (where no legal retention obligation applies)
• Data portability
• Objection to certain processing activities

Submit requests to: datenschutz@avenzo.ch

7. Cookies and Tracking

avenzo.ch uses:

• Necessary cookies (session management, security) — no consent required
• Analytics cookies (anonymized) — with your consent
• No third-party advertising cookies

Cookie preferences can be changed at any time via the cookie banner.

8. Data Security

Avenzo GmbH implements industry-standard security measures:

• Encryption (TLS/HTTPS for transmission; AES-256 for storage)
• Role-based access control
• Regular security audits
• Swiss data center
• Mandatory two-factor authentication for all accounts

9. Changes to This Privacy Policy

Changes will be published on this page. For material changes, registered users will be notified by email.

10. Contact and Complaints

For privacy-related inquiries: datenschutz@avenzo.ch

You also have the right to lodge a complaint with the Swiss Federal Data Protection and Information Commissioner (FDPIC): edoeb.admin.ch

→ Legal Notice · → Terms of Service · → FINMA Registration

This page does not replace individual tax advice. All information is provided without guarantee.