You run your business. We take care of the numbers.
ONE! Treuhand was founded in Zurich in 2009 to take accounting, taxes and payroll completely off the hands of SMEs. Every client has a dedicated contact person instead of changing case handlers. Today, ten employees look after more than 300 companies across Switzerland.
We work in the background to deliver clear figures and reliable tax solutions, so you can concentrate on your business.
We work personally and without unnecessary detours. Instead of changing case handlers, you have a dedicated contact person who explains everything in plain terms: honestly, directly and on an equal footing.
From our base in Zurich, we support SMEs throughout Switzerland with digital processes and personal support.
Rodolfo Intaglietta, Treuhänder mit eidg. Fachausweis & Diplomierter Experte in Rechnungslegung und Controlling (Expert in Accounting and Controlling with Advanced Federal Diploma of Higher Education)
The initial consultation is non-binding. Afterwards, you decide in your own time.
Digital, simple, effective: how the ONE! Treuhand App works
Simply scan your receipts with the app or upload them directly. Your data reaches our system securely, we take care of the processing, and you keep track of your figures at all times.
This finally makes accounting, taxes and payroll simple, transparent and efficient.
- Capture receipts digitally: no more paper
- Access your figures at any time: full transparency
- No accounting knowledge needed: we handle everything
- Secure data transfer to Swiss standards
The ONE! Treuhand App is used every day by more than 300 clients from Zurich and across Switzerland.
Schedule a free initial consultation
More than numbers: a financial system for entrepreneurs
Do you want more profit and financial clarity?
As a client of ONE! Treuhand, you receive the Smart Profit System, a simple financial system that lets you actively manage profit, taxes and liquidity.
It helps you structure your income sensibly from the start, instead of only seeing what is left at the end of the month or year.
The system is not a separate product. It is a fixed part of our ongoing support at ONE! Treuhand.
Here is how it works
Instead of the classic calculation
income − expenses = profit,
the Smart Profit System works on a different principle:
Every incoming payment is split straight away into separate accounts using fixed percentages: for profit, taxes, VAT, the owner’s salary and operating expenses.
This way, profit is more than a number. The money is really there and protected from unwanted spending.
- Financial clarity about profit, taxes and available funds
- Profit secured from the start, not just at year-end
- Better cost control through clear budget limits
- Measurable results directly in your bank account
- Long-term financial stability without surprises
Companies that work with the Smart Profit System report significantly more control and an average of 21% more profit.
YOUR BENEFITS
What ONE! Treuhand means for you
3 SIMPLE STEPS
How it works
Instead of ready-made packages, you get an individual offer that fits your business exactly. We discuss your needs in a free and non-binding conversation. You then receive your tailored offer: fair, transparent and adjustable at any time. Start with a clarity call, with no obligation at all.
No change of contact person, no hotline, no detours: you work directly with your fiduciary.
Why ONE! Treuhand
ONE! Treuhand is a member of TREUHAND|SUISSE, the professional association of the Swiss fiduciary industry, and has been working in Zurich-Glattbrugg since 2009. Membership requires sound professional training. Every year we complete mandatory continuing education, and we are covered by professional liability insurance.
No commitment, insured mandates
You stay flexible. There is no minimum term and no notice period. If the collaboration does not suit you, you can end it at any time. If we make a mistake that causes damage, our professional liability insurance covers it.
Ready for clear figures and less effort?
Start with a non-binding initial consultation and get to know ONE! Treuhand in person.
- Save time through digital processes
- Save money through a clean tax structure
- Gain certainty through qualified professionals
- A personal contact person instead of a hotline
Rodolfo Intaglietta | Managing Director
Treuhänder mit eidg. Fachausweis &
Diplomierter Experte in Rechnungslegung und Controlling
Location: Zurich-Glattbrugg
Email: welcome@onetreuhand.ch
Phone: +41 44 533 34 25
Frequently asked questions about ONE! Treuhand
What does a fiduciary firm do in Switzerland?
We support companies with accounting, taxes, payroll and financial questions. Our goal is to keep your figures correct and up to date, meet legal obligations reliably and take a noticeable load off you as an entrepreneur: professionally, organizationally and in everyday business.
Does ONE! Treuhand work only in Zurich or throughout Switzerland?
We support companies throughout Switzerland. Thanks to our digital way of working, we are not tied to one location. Many clients come from Zurich, but our services are open to companies in all regions.
What are the advantages of outsourcing accounting to a fiduciary?
When we take over your accounting, you save time, avoid errors and get a clear basis for decisions. You do not have to deal with accounting details, yet you still benefit from structured processes, professional responsibility and tax expertise.
How does ONE! Treuhand work?
ONE! Treuhand combines digital processes with a dedicated contact person. You work permanently with the same specialist, who keeps your accounts and can be reached directly when you have questions. There is no hotline and no change of responsibility.
What does “Treuhänder mit eidg. Fachausweis” mean?
The eidg. Fachausweis (Federal Diploma of Higher Education) is a state-recognized qualification in the fiduciary field. It requires sound specialist knowledge and several years of practical experience.
For you, this means that your accounting, taxes and financial matters are handled by a qualified specialist who knows the legal requirements and applies them correctly.
What does “Diplomierter Experte in Rechnungslegung und Controlling” mean?
The qualification “Diplomierter Experte in Rechnungslegung und Controlling” (Expert in Accounting and Controlling with Advanced Federal Diploma of Higher Education) is classified at level 8 of the Swiss National Qualifications Framework (NQF), the highest level of higher vocational education. Rodolfo Intaglietta, Managing Director of ONE! Treuhand, holds this qualification.
At ONE! Treuhand, you work directly with such an expert. He assesses your figures himself, takes professional responsibility for them and remains your contact person when things get complicated.
How much does working with ONE! Treuhand cost?
At ONE! Treuhand, ongoing accounting is available from CHF 250 per month. In the free initial consultation, we estimate the effort based on your previous receipts. It increases with the number of your employees.