Understand family offices — and how to build one.
Menu
What Is a Family Office? 🛠 Family Office Builder Learn News
Family Offices Overview Single Family Office Multi-Family Office Micro Family Office Costs Comparisons
Build How to Build — Step by Step Organizational Structure Roles & Staffing ✓ Checklist Cost Estimator Maturity Model
Investing Overview Direct Investing Policy Statements Due Diligence
Operations Overview Accounting Technology Cybersecurity
Governance Overview Estate Planning Tax Management Philanthropy
Industry Directory Resources Literature Glossary Careers
Tools & AI Ask the Data AI Agents API ★ Saved
About About us Contact Disclaimer
Your view
🛠 FAMILY OFFICE BUILDER

Twelve questions — an example structure, org chart, and cost band.

API GATEWAY

Free read-only JSON access to the site's guides, glossary, and tools.

Dark mode
Theme

🧭 Guided View
New to markets — prices, yields, YTD, market cap? We explain every term as you browse, in plain English. Same data, with the help built in.

⚡ Expert View
You already know the market. Just the data — clean, fast and compact, with no extra explanations. This is the default view.

Interface language
← Back
Glossary

SEC Family Office Rule

An SEC rule that exempts qualifying single-family offices from registering as investment advisers, provided they meet specific conditions about who they serve and how they are owned.

The SEC Family Office Rule is the regulation that gives most single family offices a clear path to operate their investment programs without registering under the Investment Advisers Act of 1940. At its core, the rule creates an exemption — not just an exclusion — by defining what a "family office" means for regulatory purposes. Meeting that definition is what allows the office to manage family wealth without becoming a regulated investment adviser.

The rule sets out conditions around who can be served (generally members of a single family and certain closely related parties), how the office must be owned and controlled, and the requirement that the office not hold itself out to the public as an investment adviser. A family office serving only the descendants of a common ancestor and their spouses, for example, commonly fits within the rule's framework — but the precise boundaries require careful legal analysis every time the family's circumstances change.

Families adding new members, onboarding a key employee as a partial beneficiary, or considering serving a related charitable entity need to revisit whether they still qualify. A single misstep can result in the office needing to register as an RIA, which carries significant compliance obligations. This is an area where working with a qualified securities attorney is not optional — it is essential. The rule is one reason why legal entity structure is treated as a foundational decision when building a family office.

Related Terms

Family Offices

What Is a Family Office?Do You Need a Family Office?Single Family Office (SFO)Multi-Family Office (MFO)Micro Family OfficeWhat a Family Office CostsWhy Family Offices Exist

Build a Family Office

How to Build a Family Office From the Ground UpStep 3: The Organizational StructureStep 4: Internal vs. Outsourced (Build vs. Buy)The First 90 Days: Turning the Lights OnStep 1: Define the Family Office's PurposeStep 2: Inventory the Family's AssetsStep 5: Hire the Core Team

Investing

How Family Offices InvestDirect InvestingAsset Allocation for Family CapitalThe Investment Policy Statement (IPS)Liquidity, Concentration, and RiskPublic Markets: Equities and Fixed IncomeReal Estate in the Family Portfolio

Operations

Family Office AccountingFamily Office TechnologyFamily Office CybersecurityConsolidated Reporting: One True Net WorthBill Pay, AP, and Financial ControlsFamily Office Software, Category by CategoryBanking, Custody, and Treasury

Governance & Estate

Family GovernanceEstate Planning and Wealth TransferHow Family Offices Manage TaxPhilanthropy and the Family OfficeThe Family ConstitutionSuccession: The Office After the FounderPreparing the Next Generation

Industry

Careers in Family OfficesHow the Family Office Industry Is ChangingFamily Offices and Regulation

Roles & Staffing

Family Office Roles & Staffing, MappedFamily Office CEO / President / Managing DirectorChief Investment Officer (CIO)Portfolio Manager / Investment DirectorAsset Manager (Real Assets)Chief Financial Officer (CFO)Controller

Comparisons

Single vs. Multi-Family OfficeFamily Office vs. Wealth ManagerFamily Office vs. RIAFamily Office vs. Private BankFamily Office vs. Financial AdvisorFamily Office vs. Hedge FundFamily Office vs. Private Equity Firm