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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint742,806 companies indexed · Last updated: today
DirectoryFinance & InsuranceFiduciary OfficesRheinfeldenZumstein Treuhand
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Zumstein Treuhand

Summary

About the company

The core activity of "Zumstein Treuhand" is the provision of services in the areas of corporate consulting, accounting, and administration. Specifically, this includes: accounting with EDV for SMEs, company valuations, corporate restructuring, creation of business plans, contract management (creation of contracts such as loan and credit agreements, franchise agreements, etc.), personnel administration (payroll and salary calculations), and corporate consulting (advice on company formations, liquidations, changes in the board of directors, etc.). The company thus offers a comprehensive range of services for businesses to support them in their administration, accounting, and strategic decision-making.

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Products & services

Industry:Fiduciary Offices
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12
IT-supported bookkeeping
Client bookkeeping for SMEs, periodic interim financial statements, annual financial statements, and subsidiary ledgers for wages/salaries, debtors, and creditors.
Tax returns and tax consulting
Tax returns for self-employed persons, employees and pensioners, tax planning and optimisation, review of assessments, as well as objections and special tax returns.
VAT returns
Preparation of VAT returns on a semi-annual or quarterly basis, using the Saldosteuersatz (flat-rate) or the effective method.
Company formations and liquidations
Formation of joint-stock companies (AG), GmbHs, cooperatives and articles of association/partnership agreements, as well as advice on amendments and liquidations.
Business plans
Creation of business plans with forecast figures, financial plan, projected balance sheet, projected profit-and-loss statement, and other analyses.
Reviews

Aggregated rating

Aggregated rating
5
of 5

Aggregated from 1 reviews across all connected sources

Sources
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PProvenExpertSoon

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Location

Gartenweg 36
4310 Rheinfelden

At a glance

Legal form
Sole proprietorship
UID
CHE-107.952.830
Founded
1978 · 48 years
Last commercial register change
January 30, 2026
Employees
1 to 10

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