The Arm's Length Principle in Swiss Law

Swiss transfer pricing rules are not codified in a standalone statute but derive from Art. 58 DBG (Federal Law on Direct Federal Tax) and Art. 24 StHG. The principle is that transactions between related parties must be priced as if they occurred between independent third parties at arm's length. Swiss authorities apply OECD Transfer Pricing Guidelines as interpretive authority.

When Do Transfer Pricing Rules Apply to Swiss SMEs?

The rules apply whenever there are transactions between related parties — parent/subsidiary, sister companies, or companies with common significant shareholders. Common scenarios for Swiss SMEs:

OECD BEPS Action 13: Three-Tier Documentation

For groups above CHF 900M consolidated revenue (Swiss CbCR ordinance threshold), full three-tier documentation applies: Country-by-Country Report, Master File, and Local File. Below this threshold, Swiss tax authorities may still request Local File documentation during an audit. Best practice is to maintain at minimum a Local File for all significant intercompany transactions regardless of group size.

Transfer Pricing Methods (OECD approved)

  1. Comparable Uncontrolled Price (CUP): Most direct — compares the controlled price to comparable uncontrolled prices. Requires reliable comparables.
  2. Cost Plus: Used for manufacturing and service entities. Adds an appropriate markup to costs.
  3. Resale Minus: Used for distribution entities. Deducts an appropriate margin from resale price.
  4. Transactional Net Margin Method (TNMM): Compares net profit margins to comparable independent companies. Most commonly used in Swiss practice.
  5. Profit Split: Used where both parties contribute unique valuable functions or intangibles.

Safe Harbour Interest Rates for Shareholder Loans (Swiss Practice)

ESTV publishes annual safe harbour interest rates for intercompany loans (Merkblatt Zinssätze). For 2024: loans funded in CHF: minimum 1.5% (from shareholder to company) / maximum 3.0% (from company to shareholder) for CHF loans. Deviation from these rates requires documentation of arm's length terms.

Advance Pricing Agreements (APAs)

Switzerland offers both unilateral APAs (with ESTV/cantonal authority) and bilateral APAs (in cooperation with a foreign tax authority under a DTA mutual agreement procedure). APAs provide certainty for 3–5 years on pricing of specific intercompany transactions. Processing time: 12–24 months for bilateral APAs.

What Happens If Transfer Pricing Is Wrong?

Correction of non-arm's length pricing leads to income addition (Aufrechnung) in Switzerland, plus corresponding interest on unpaid tax. In egregious cases, tax fraud penalties apply. Cross-border corrections often result in double taxation if the counterparty jurisdiction does not make a corresponding reduction — hence the value of bilateral APAs or MAP proceedings under DTAs.

Source basis: OECD Transfer Pricing Guidelines 2022 · Art. 58 DBG · Art. 24 StHG · ESTV Merkblatt Zinssätze 2024 · Swiss CbCR Ordinance (ALBAG).