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DirectoryFinance & InsuranceFiduciary OfficesLa Chaux-De-Fonds3S Conseils Sàrl
3S Conseils Sàrl Logo
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3S Conseils Sàrl

Summary

About the company

3S Conseils Sàrl is a consulting firm that advises individuals on tax, social‑security and administrative matters, with a focus on cross‑border issues between France and Switzerland. Services include tax declarations, guidance on URSSAF/CNTFS and social contributions, support for LMNP and real‑estate declarations, financial advice and tax optimisation.

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Offering

Products & services

Industry:Fiduciary Offices
✓ Offered8
Cross-border taxation
Cross-border advice on taxation, retirement and wealth; support for cross-border workers and residents with tax returns, tax obligations, preventing double taxation and monitoring changes in circumstances.
Taxation in Switzerland
Tax returns for residents in Switzerland; analysis of the canton, income, deductions and tax obligations, with annual preparation and follow-up in case of changes or audits.
URSSAF and social contributions
Registration with URSSAF and reporting obligations; determining the correct social scheme, registration, filings, payment schedule and monitoring of contributions for cross-border workers and residents.
Financial advice
Financial analysis and wealth strategy; review of cash flows, investments, wealth organisation and objectives, with objective recommendations and regular adjustments.
LMNP setup and tax filing
Setting up the LMNP status and managing income declarations for rental income in France; choosing the micro-BIC or réel regime, liasse fiscale, forms and annual follow-up.
Tax optimisation
Analysis of the tax situation, income, wealth and costs/charges; identification of the legal levers, implementation of a compliant strategy and follow-up over time.
Tax returns for residents
Management of tax returns, accounting and social obligations for people domiciled in Switzerland, with tailored support depending on the canton and personal situation.
Tax returns for cross-border workers
Support for cross-border workers with their tax procedures on both sides of the border, depending on their status, place of residence and place of work.
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Location

Avenue Léopold-Robert 37
2300 La Chaux-De-Fonds

At a glance

Legal form
Limited Liability Company
UID
CHE-334.128.562
Founded
2025 · 1 year
Last commercial register change
September 4, 2026
Employees
1 to 10

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