Swiss tax return filing – FIN tax advisory

Tax Advice for Expats

File your Swiss Tax Return

Looking for tax clarity instead of complexity? FIN is your tax advisor in Switzerland — guiding you through all financial and tax matters. No jargon, no red tape — just real support, on your terms.

Tax Advisor in Switzerland

At FIN, we offer modular, transparent services that evolve with you — from your first investment to your retirement strategy. What stays consistent: one dedicated tax advisor, and clarity in every step.

Swiss Tax Return Filing

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Navigate local and cross-border tax matters with confidence.

Optimizing your tax situation — whether you're a private individual or an expat. We know: tax is personal. That's why we value honest, in-depth conversations — and put all our expertise into making your tax strategy a success.

Tailored Tax Advice

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Tailored solutions for relocation, dual taxation, and regulatory clarity.

Optimizing your tax situation — whether you're a private individual or an expat. For us, this is where it gets exciting: there's nothing more satisfying than investing your money tax-efficiently.

Expat & B-Permit

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Clarity around double taxation, withholding tax & reporting obligations.

International? Absolutely. Navigating cross-border tax issues is part of our daily work. We understand how to deal with the requirements of foreign citizens (expatriates). We expertly guide you through your Swiss tax return.

Financial Planning

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Personal finances, business transitions, and everything in between.

Forward-looking guidance — for pensions, inheritance, investments, and real estate. Tax advice doesn't stop at your return. With FIN, you get expert support across all financial and tax topics.

Trust the Stars: Google Reviews

Vanessa Leite
I am an expat living in Switzerland under B permit and was with doubts about having to file my taxes. I had a great experience talking to Marlon on a consultation call. I received advice and explanations about what situations would be an advantage to stop paying the withholding taxes and starting filing the taxes myself. I was full of uncertainty and now I feel with peace of mind.
Faris Aziz
Marlon is simply the best tax advisor i've had! Great experience, attitude and communication skills. Could not be happier to work with him for my accounting needs!
Guillermo Amutio Duarte
I highly recommend the services of Trust FIN. Marlon helped me throughout the entire process and my case was not an easy one. I have to thank him for all the patience on explaining me every point of my tax declaration. I will repeat with them for sure
Shirley
Professional, transparent with pricing, and great communication. A must for expats — fully English process and an easy-to-use platform. Marlon is fantastic. Highly recommend!
Arjun Bhanap
Marlon was super helpful, very responsive and the team helped me file my tax return in good time. Highly recommend for expats in Zug for tax return filing - great service!
Eunice Cardoso
Great experience with Trust FIN. The team was very responsive, professional, and available to help. They were quick and provided clear explanations. I really appreciated their support and would definitely recommend their services.
Jens
I can highly recommend working with the Trust FIN Team. From the initial meetings , to their Technology Plattform , this is how it should be. Smart, easy , highly professional and available on short notice or short deadlines. This Team will Support you and solve the matter asap. If you enjoy working with a Team of engaged professional who really find the solution even if you are still invested in your home country - These are your trusted advisors! 100 % recommendation and two Thumbs Up ! I am a regular user of their services now
Lux Nqabeni
Excellent service, informed communication and easy to work with. This is my 2nd year using their service and its been a smooth process. Thanks again Marlon
Eileen Nehrenheim
I have been filing my tax declaration with FIN for three years now and I am very satisfied with their service. The process is always smooth, reliable, and professional.
Dodo Schluep
Great team, great expertise. Thank you for the help and the excellent services. The customer is at the center.
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Own your finances, just three steps away

Initial Consultation & Assessment

Step one

Initial Consultation & Assessment

Tell us about your situation. In our initial, no-obligation consultation, we take the time to understand your unique needs, completely free of charge. From the very beginning, you'll benefit from full transparency with our clear, fixed rates.

How it works

Document Submission

Step two

Document Submission

Your personalized checklist is automatically created by Trust FIN Tax Portal based on your information. Access and manage your documents securely in the Swiss cloud using our client portal with two-factor authentication.

How it works

Full Review & Optimization

Step three

Full Review & Optimization

We don't just fill out the form. We look for tax savings — for this year and next. Because good tax advice goes beyond paperwork.

How it works

You always know what to expect

Our flat-rate model adjusts to your situation and is made up of transparent components.

Basic Package

Make the most of all available tax deductions.

  • Tax return filing
  • Deadline extension
  • Add-ons based on complexity

Basic Package

  • Tax return filing We prepare and file your complete Swiss tax return, optimizing every deduction.
  • Deadline extension We handle the formal deadline extension request with your canton.
  • Add-ons based on complexity Additional services only when your situation requires them — no hidden costs.

Most appreciated

Premium Package

We fully represent you with the tax authorities & take care of all the tax hassle for you.

  • Everything from Basic
  • Personal consultation
  • Full representation
  • Document requests from tax authorities
  • Tax objection

Premium Package

  • Everything from Basic All Basic services included as your solid foundation.
  • Personal consultation One-on-one session to review your financial situation and tax strategy.
  • Full representation We communicate directly with tax authorities on your behalf.
  • Document requests from tax authorities We handle all information requests and correspondence.
  • Tax objection We file formal objections if your tax assessment needs correction.

All Inclusive

Sit back and relax. Your ultimate peace-of-mind package.

  • Everything from Premium
  • Priority processing
  • Ongoing optimizations
  • No extra charges

All Inclusive

  • Everything from Premium Complete Premium coverage with additional exclusive benefits.
  • Priority processing Your case gets fast-tracked through our workflow.
  • Ongoing optimizations Proactive multi-year tax planning tailored to your goals.
  • No extra charges Flat rate covers everything — no surprises, no add-ons needed.

Additional Services

Mid-year tax filing CHF 150
Special cantons CHF 100
Double income CHF 200
Inter-cantonal property allocation CHF 200
International asset allocation CHF 200
Real estate per property CHF 150
Real estate cost breakdown CHF 250
Asset declarations
(e.g. bank accounts; debts)
CHF 10 per item
Alimony payments CHF 50 per item
Self-employed Form A CHF 150
Form DA-1
(foreign withholding tax)
CHF 200
Simple representation CHF 400
Full representation incl. objection +CHF 600
Fast delivery
(within 5 days)
CHF 200
Urgent cases Double rate
Withholding tax rate correction from CHF 300

Truly Independent Financial Advice

Find your North
Star

We believe true financial advisory – it’s about understanding where you want to go.

Meet FIN in an initial consultation — and let us get to know you. Together, we’ll find your North Star from where you stand in life.

Transparent, tailored to your needs, and always by your side.

Questions still lingering?
We’re here with the answers you need.

Here’s what people often want to know before getting started with FIN.

Is the initial consultation free of charge?

Yes, your first consultation with us is completely free and without obligation. This allows you to get to know us and discuss your needs before making any commitments.

Why should I choose independent financial advice?

Independent financial advice ensures that recommendations are made in your best interest, free from conflicts of interest or product sales pressure. Our only goal is to help you achieve your financial objectives.

How is an independent advisor different from a bank consultant?

Unlike bank consultants, who may be tied to specific products or services, independent advisors offer unbiased guidance and access to a wider range of solutions tailored to your individual situation.

How do you get compensated for your services?

Our compensation is transparent. We typically work on a fee basis, which we discuss and agree upon with you in advance. This ensures our advice remains objective and in your best interest.

Am I entering into a long-term commitment?

No, you are not required to enter into a long-term contract. Our services are flexible, and you decide how long you wish to work with us.

How often do we review my financial situation?

We recommend reviewing your financial situation at least once a year or whenever there are significant changes in your life. However, we can tailor the frequency of reviews to your preferences and needs.

Do you also help with budgeting and financial organization?

Yes, we assist you with budgeting, financial organization, and developing strategies to manage your finances more effectively.

Financial advisory that moves with you.

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