You can learn more from our asked questions
Explore our most frequently asked questions to better understand how ATCA Sàrl supports businesses across Switzerland. From accounting and payroll to tax, audit, and company formation, we’re here to provide clear, reliable answers.
ATCA operates in western and central Switzerland, with offices in Lausanne, Geneva, Zurich, Zug, Bern, Basel, Nyon, and Yverdon-les-Bains. This multi-cantonal presence allows us to serve clients locally, collaborate directly with regional authorities, and provide effective support in every canton where your company is based.
Yes. ATCA provides independent internal audit services in accordance with Swiss regulatory standards and international best practices. Our audits assess corporate financial governance, internal control systems, and operational processes—delivering concrete conclusions and recommendations that strengthen the integrity and effectiveness of your organization.
Yes. Our domicile service provides your company with a professional business presence in Switzerland—without the cost and commitment of a physical office. The package includes a registered business address in Switzerland, mail and telephone management, access to conference rooms and secretarial services, and local director support if needed. A complete solution for companies building or maintaining a presence in Switzerland efficiently.
Yes. ATCA acts as an authorized representative before the relevant cantonal and federal authorities—including tax administrations, AHV/AVS funds, and other regulatory institutions. We manage notifications, handle correspondence, respond to inquiries, and ensure that your company's compliance obligations are met consistently and timely.
ATCA's primary focus is on corporate and partnership services. We do not offer general income tax services for individuals. However, as part of our corporate mandate, we prepare tax returns for our corporate clients' employees, ensuring consistency and efficiency across the board.
We deliver responsive, precise, and client-focused accounting and advisory services tailored to the needs of modern businesses. Our proactive approach ensures clarity, compliance, and strategic support, helping you make informed decisions and achieve long-term growth
We provide a wide range of corporate support services, including:
- Company formation, domiciliation & representation (Swiss resident director services)
- Accounting, payroll & reporting
- VAT and corporate income tax compliance
- Administrative support
- Financial process optimization
- Internal audits
Yes. While we prepare financial statements in accordance with Swiss statutory requirements, we can also convert them into Swiss GAAP, US GAAP, or IFRS reporting formats.
Our expertise includes:
- Consolidation
- Group reporting packages
- High-volume transaction industries (e.g. trading)
- Emerging technologies (e.g. cryptocurrency)
- Start-ups