You run your business. We take care of the numbers.
I know how demanding accounting, taxes and payroll can be in day-to-day business – especially when your focus should really be on growing your company.
That’s exactly why I founded ONE! Treuhand: so you can concentrate on your business, while we take care of clear financial figures and reliable tax solutions in the background.
We work personally and without unnecessary complexity. You won’t deal with changing case handlers – instead, you work with one dedicated contact who explains everything clearly, honestly and at eye level.
From our base in Zurich, we support SMEs across Switzerland through digital processes combined with personal, hands-on service.
Rodolfo Intaglietta – eidg. diplomierter Treuhandexperte & Diplomierter Experte in Rechnungslegung und Controlling
Digital. Simple. Effective. This is how our Treuhand app works.
Scan your receipts directly in the app or upload them with just a few clicks. Your data is transmitted securely to our system, we take care of the processing — and you always have a clear overview of your financials.
This makes accounting, taxes, and payroll finally simple, transparent, and efficient.
- Capture receipts digitally — no more paperwork
- Access your numbers anytime — full transparency
- No accounting expertise required — we handle everything
- Secure data transfer — in line with Swiss standards
Our Treuhand app is used daily by hundreds of entrepreneurs in Zurich, across Switzerland and internationally.
More than numbers: a financial system for entrepreneurs
Do you want higher profits and clear financial control?
As a client of ONE! Treuhand, you receive access to the Smart Profit System – a simple financial framework that helps you actively manage profits, taxes and liquidity.
Instead of finding out what is left at the end of the month or year, the system structures your income from day one.
The Smart Profit System is not a separate product, but an integral part of our ongoing Treuhand and tax consulting services at ONE! Treuhand.
How it works
Instead of the traditional formula
Income – expenses = profit,
the Smart Profit System follows a different approach:
Each incoming payment is allocated directly, based on predefined percentages, to separate accounts – for profit, taxes, VAT, owner’s compensation and operating expenses.
This way, profit is not just an accounting figure, but real, available money – protected from unplanned spending.
- Clear visibility of profit, taxes and available liquidity
- Profit secured from the start, not calculated at year-end
- Better cost control through clearly defined budgets
- Tangible results directly visible in your bank accounts
- Long-term financial stability without unpleasant surprises
Companies using the Smart Profit System report significantly greater financial control and an average profit increase of 21%.
YOUR BENEFITS
What ONE! Treuhand means for you
3 SIMPLE STEPS
How it works
We don’t offer one-size-fits-all packages. Instead, you receive an individual solution tailored precisely to your business. In a free, no-obligation conversation, we clarify your needs and outline the best approach — transparent, fair, and fully adaptable. Start with a clarity call, with no commitment required.
No changing contacts, no call centers, no unnecessary detours — you work directly with your Treuhand expert.
Customer feedback
Our Treuhand services are trusted by over 300 SMEs in Zurich and across Switzerland and internationally — efficiently managed, reliably supported, and personally guided.
„With you, my team is happy: punctual salaries, zero errors, so I can finally focus on growth.“
Sarah K.
HR-Manager
„My accounting was my nightmare and now the figures are crystal clear and I make better decisions“
Thomas H.
CEO Start-up
„Thanks to ONE! Treuhand, I have 15 hours free per month. My business is more stable than ever.“
Alex S.
CEO/ Founder
Guarantee & freedom from risk
You remain flexible: There is no minimum term and no notice period. If you ever find that we are not the right fit for you, simply end the collaboration – uncomplicated and at any time.
With us, there is no long back and forth, but fair, clear conditions. It is important to us that you are truly convinced. We want to give you security so that you can fully focus on what matters most: your business.
Our quality promise
We are a member of TreuhandSuisse – the leading professional association for trustees in Switzerland. Membership is only possible with sound professional training and guarantees that you will always work with professionals.
We consistently invest in further training
Every year we complete mandatory training courses and workshops – this is strictly monitored by TreuhandSuisse. This ensures we are always up-to-date in taxation, accounting, business consulting, and much more.
Real security through professional liability insurance
We have comprehensive professional liability insurance (mandatory for members of TreuhandSuisse). Should an error occur that causes damage, you, as our client, are protected without financial disadvantage.
Frequently Asked Questions about ONE! Treuhand
What does a Treuhand firm do in Switzerland (and what does “Treuhand” mean)?
In Switzerland, the term “Treuhand” refers to a comprehensive business service covering accounting, taxation, payroll, and financial advisory for companies.
At ONE! Treuhand, we help businesses keep their figures accurate and up to date, meet all legal requirements reliably, and significantly reduce administrative workload. Our goal is to support you as an entrepreneur — professionally, structurally, and in day-to-day operations — with clear numbers and dependable guidance.
Does ONE! Treuhand work only in Zurich or across Switzerland?
We support companies throughout Switzerland. Thanks to our fully digital setup, our services are independent of location. While many of our clients are based in Zurich, we work with businesses in all regions of the country.
What are the advantages of outsourcing accounting to a Treuhand firm?
When we take care of your accounting, you save time, avoid errors, and gain reliable decision-making data. You don’t need to deal with accounting details yourself, yet you benefit from structured processes, professional responsibility, and solid tax expertise.
What sets ONE! Treuhand apart from other providers?
We combine digital processes with genuine personal support. You work with a dedicated point of contact who knows your business and your numbers — not changing case handlers or anonymous teams.
We proactively monitor your figures, think ahead, and remain personally available whenever questions arise. Many clients particularly value our accessibility, our commitment, and the fact that we stay involved from the very first conversation through to the annual closing.
What does “Treuhänder mit eidg. Fachausweis” mean?
The eidg. Fachausweis is a federally recognized Swiss professional qualification in the Treuhand field. It requires in-depth specialist knowledge as well as several years of practical experience.
For you, this means your accounting, taxes, and financial matters are handled by a qualified professional who understands legal requirements and applies them correctly.
What does “eidg. diplomierter Experte in Rechnungslegung und Controlling” mean?
The qualification “eidg. diplomierter Experte in Rechnungslegung und Controlling” corresponds to NQF level 8, the highest level of formal education in Switzerland, and is comparable to a doctoral degree in terms of depth of expertise and level of responsibility.
At ONE! Treuhand, you work directly with such an expert. This gives you maximum professional security, a deep understanding of complex financial structures, and advisory support at the highest professional level.
How much does working with ONE! Treuhand cost?
Our pricing is transparent and clearly structured. You receive an offer tailored to your actual needs — with no hidden fees. With clearly defined services and transparent pricing, you always retain full control over your costs.
Ready for clear figures and less effort?
Start with a non-binding initial consultation and get to know ONE! Treuhand personally.
- Save time through digital processes
- Save money through a clean tax structure
- Maintain security through qualified professionals
- Personal contact person instead of a hotline
Rodolfo Intaglietta | CEO
Eidg. diplomierter Treuhandexperte &
Diplomierter Experte in Rechnungslegung und Controlling
Location: Zurich-Glattbrugg
Mail: welcome@onetreuhand.ch
Phone: +41 (0) 44 533 34 25