Private Banking: Definition and Swiss Framework
Definition
Private banking is the provision of personalised financial services to high-net-worth individuals (HNWIs), ultra-high-net-worth individuals (UHNWIs), and their families. It is distinguished from retail banking by the wealth threshold of clients served, the degree of service personalisation, and the breadth of financial services available — including investment management, credit, estate planning, tax advisory, trust and fiduciary services, and in some jurisdictions, digital asset services.
The term “private bank” historically referred to banks organised as partnerships, in which the partners bear personal liability for the institution’s obligations. This structure — associated with institutions like Pictet and Lombard Odier in Geneva — was intended to ensure conservative risk management, since the partners’ personal fortunes were at stake. Today the term is used more broadly to refer to any bank or bank division specialising in serving wealthy individuals, regardless of ownership structure.
Client Profiles: HNWI and UHNWI
Private banking clients are typically defined by investable asset thresholds:
High-Net-Worth Individuals (HNWIs): Generally defined as individuals with investable assets of USD 1 million or more (excluding primary residence). This threshold varies between institutions; many Swiss private banks set entry minimums higher.
Very-High-Net-Worth Individuals (VHNWIs): Approximately USD 5 million to USD 30 million in investable assets.
Ultra-High-Net-Worth Individuals (UHNWIs): Typically USD 30 million or more in investable assets. This segment is the primary focus of Switzerland’s leading private banks, which compete intensively for UHNWI mandates given the significantly higher revenue potential per client relationship.
Family offices — dedicated investment and administrative entities established to manage a single family’s wealth — are a closely related segment. Multi-family offices (MFOs) serve multiple wealthy families from a shared platform.
Service Models
Swiss private banking is delivered across three primary service models. For a detailed analysis of what these models actually cost, see our guide to Swiss wealth management fees.
Discretionary mandate (DM): The bank manages the client’s portfolio within agreed parameters — an investment policy statement setting asset allocation ranges, risk tolerance, and specific constraints — without requiring the client’s instruction for individual transactions. The bank has full discretion to trade within the mandate. Fees are typically charged as a percentage of AUM, often supplemented by performance fees. Discretionary mandates are the highest-margin service model for private banks.
Advisory mandate: The bank provides investment advice and recommendations, but the client retains the authority to approve or decline individual transactions. The relationship manager discusses recommended trades with the client before execution. This model suits clients who wish to remain actively engaged in investment decisions while benefiting from professional advice.
Execution-only: The bank executes transactions on instruction from the client without providing investment advice. The bank owes no suitability assessment. This model is common for sophisticated, self-directed investors who use the bank primarily for access to markets, custody, and reporting infrastructure.
Swiss Bank Secrecy: History and Evolution
The Swiss Banking Act of 1934 (Bankengesetz) codified the criminal liability that bank employees faced for disclosing client information to third parties without client consent or legal compulsion. Article 47 of the Banking Act, in its original and successor forms, made breach of banking confidentiality a criminal offence — not merely a civil matter. This gave Swiss bank secrecy a legal enforceability that distinguished it from the confidentiality practices of banks in other jurisdictions.
The commercial consequences were profound. Switzerland became the preferred offshore domicile for private wealth globally — particularly for clients in high-tax, politically uncertain, or authoritarian jurisdictions who valued the legal protection of Swiss confidentiality.
The erosion of bank secrecy came through international pressure:
UBS Deferred Prosecution Agreement (2009): The US Department of Justice reached a settlement with UBS requiring disclosure of American account holder data. UBS paid $780 million and provided information on approximately 4,450 clients. The settlement established that the US government had both the will and the legal tools to compel disclosure from Swiss banks.
FATCA (2014): The Foreign Account Tax Compliance Act required Swiss financial institutions to identify and report US person accounts to the IRS or face 30% withholding on US-source payments. Switzerland signed a FATCA intergovernmental agreement. Swiss banks now routinely collect W-9 forms and report US client accounts to the IRS.
Common Reporting Standard (CRS): The OECD’s CRS, implemented from 2017 (with first Swiss exchanges in 2018), established a multilateral automatic exchange of financial account information. Swiss financial institutions now identify the tax residency of account holders and report account balances, income, and asset values to FINMA, which transmits the data to partner jurisdiction tax authorities. Switzerland currently exchanges CRS data with over 100 countries.
Swiss bank secrecy in its historical form is effectively ended. What remains is the ordinary professional confidentiality applicable to client information in any banking jurisdiction — meaningful but not comparable to the criminal-law-backed secrecy of the pre-FATCA era.
Swiss Regulatory Framework
Private banking in Switzerland is supervised by FINMA under the Banking Act (BankG), the Financial Services Act (FinSA), and the Anti-Money Laundering Act (AMLA).
Banking Act: Requires banks providing private banking services to hold a FINMA banking licence. Capital adequacy, liquidity, and deposit protection rules apply.
Financial Services Act (FinSA): In force from January 2020, the FinSA introduced conduct rules for client interactions: suitability assessment for investment advice, appropriateness assessment for execution-only transactions, disclosure of costs and conflicts of interest, and prospectus requirements. FinSA aligns the Swiss framework more closely with EU MiFID II without creating formal equivalence.
Anti-Money Laundering Act: Swiss private banks are subject to rigorous AML requirements including client due diligence, beneficial ownership identification, politically exposed person (PEP) screening, and transaction monitoring. FINMA and the Money Laundering Reporting Office Switzerland (MROS) oversee AML compliance.
Switzerland’s private banking sector remains — even after the end of traditional bank secrecy — the world’s largest offshore wealth management centre. For practical guidance on opening a Swiss offshore bank account in 2026, including minimum requirements and KYC documentation, see our dedicated guide. For an overview of the Swiss private banking ecosystem as a whole, see our comprehensive analysis. Its competitive position rests today on genuine expertise, institutional quality, legal certainty, and the breadth of services available in a single jurisdiction, including access to the regulated digital asset banking infrastructure of Crypto Valley.
This encyclopedia entry is for informational purposes only and does not constitute financial, legal, or tax advice. The Vanderbilt Portfolio AG, Zurich.