Skip to content
Financial Terminology Finance Terms & Definitions
  • Home
  • Glossary
  • Topics
  • Home
  • Glossary
  • Topics
  1. Home
  2. Glossary
  3. Financial Regulation
  4. Investment Advisers Act of 1940
I Financial Regulation

Definition / Meaning of Investment Advisers Act of 1940

The Investment Advisers Act of 1940 is a landmark piece of federal legislation that established the legal framework for regulating investment advisers in the United States. Enacted by Congress, this law is designed to protect the public by requiring individuals and firms that provide investment advice for compensation to register with the Securities and Exchange Commission (SEC) and adhere to strict standards of conduct. The Act is a cornerstone of financial regulation, ensuring that advisers act in the best interests of their clients and maintain transparency in their operations.

Key Provisions and Requirements

The Act defines an investment adviser as any person or firm that, for compensation, engages in the business of advising others about the value of securities or the advisability of investing in, purchasing, or selling securities. Key requirements under the Act include:

  • Registration: Advisers with assets under management (AUM) exceeding $100 million must register with the SEC. Smaller advisers may be subject to state regulation.
  • Fiduciary Duty: Advisers are legally bound to act as fiduciaries, meaning they must prioritize their clients’ interests above their own. This includes avoiding conflicts of interest and providing full disclosure of any potential conflicts.
  • Disclosure: Advisers must provide clients with a written disclosure document, known as Form ADV, which details their business practices, fees, disciplinary history, and conflicts of interest.
  • Recordkeeping and Reporting: Advisers are required to maintain accurate books and records and file periodic reports with the SEC.
  • Anti-Fraud Provisions: The Act prohibits fraudulent, deceptive, or manipulative practices by investment advisers.

Who Must Comply?

The Act applies to a wide range of professionals, including financial planners, portfolio managers, and investment consultants who provide advice about securities. However, certain entities are exempt, such as banks, brokers (if their advice is incidental to their business), and publishers of general financial newsletters. The Act also exempts advisers who have fewer than 15 clients during the preceding 12 months and do not hold themselves out to the public as investment advisers.

Enforcement and Penalties

The SEC is responsible for enforcing the Investment Advisers Act of 1940. Violations can result in severe penalties, including fines, suspension, or revocation of registration. The SEC can also bring civil actions against advisers who engage in fraudulent or deceptive practices. In some cases, criminal charges may be pursued by the Department of Justice.

Relationship to Other Regulations

The Act works in conjunction with other securities laws, such as the Securities Act of 1933 and the Securities Exchange Act of 1934, to create a comprehensive regulatory environment. While the 1933 Act focuses on the initial sale of securities and the 1934 Act governs trading markets, the Investment Advisers Act specifically targets the conduct of those who provide investment advice. Additionally, the Dodd-Frank Act of 2010 amended the Investment Advisers Act, increasing registration thresholds and imposing additional reporting requirements on advisers to hedge funds and private equity funds.

Impact on Investors

For investors, the Investment Advisers Act of 1940 provides critical protections. By requiring advisers to register and disclose key information, the Act helps investors make informed decisions when choosing an adviser. The fiduciary standard ensures that advisers cannot put their own financial gain ahead of their clients’ interests. This legal framework has fostered trust in the financial advisory industry and has been instrumental in reducing fraud and misconduct.

Modern Relevance

In today’s complex financial landscape, the Investment Advisers Act of 1940 remains highly relevant. With the rise of robo-advisers and digital investment platforms, the SEC has issued guidance clarifying how the Act applies to automated advisory services. The Act continues to evolve through SEC rulemaking and court interpretations, ensuring that it adapts to new technologies and market practices while maintaining its core mission of investor protection.

Also Known As Advisers Act, 1940 Act
Topics Financial Regulation
Letter I
Views 0
Last Updated May 2026

Related Terms

A Accredited investor C CFTC S Securities Act of 1933 R Regulation D

Browse A–Z

  • A
  • B
  • C
  • D
  • E
  • F
  • G
  • H
  • I
  • J
  • K
  • L
  • M
  • N
  • O
  • P
  • Q
  • R
  • S
  • T
  • U
  • V
  • W
  • X
  • Y
  • Z

Browse by Topic

  • Credit, Debt & Lending 34
  • Stocks & Equity Markets 32
  • Taxation 29
  • Financial Statements & Accounting 29
  • Retirement Planning 27
  • Financial Markets & Market Mechanics 26
  • Personal Finance & Money Management 26
  • Bonds & Fixed Income 26
  • Investing Fundamentals 26
  • Insurance & Risk Protection 25
  • Economics for Finance 25
  • Real Estate & Mortgage Finance 25
  • Corporate Finance 25
  • Mutual Funds, ETFs & Pooled Vehicles 25
  • Financial Regulation 24

Recently Added

  • Monetary policy M
  • Accounts receivable A
  • Money supply – M3 M
  • Interest rate I
  • Beta B
  • Home
  • Glossary
  • Topics
  • About
  • Contact

Disclaimer: The definitions, terms, and explanations provided on this website are for general informational and educational purposes only and do not constitute professional financial, investment, tax, or legal advice. While we endeavor to keep the information accurate and up to date, financial concepts, market practices, and regulations change frequently. You should always consult with a qualified, licensed professional before making any financial, investment, or legal decisions. Reliance on any information on this website is solely at your own risk.

© 2026 Financial Terminology — All rights reserved.