The Investment Company Act of 1940 is the federal statute that governs mutual funds, closed-end funds, exchange-traded funds, and other pooled vehicles that sell shares to the public. It requires those funds to register with the Securities and Exchange Commission and comply with detailed rules on board composition, custody of assets, leverage, dealings with insiders, disclosures to shareholders, and periodic reporting. It works alongside the Securities Act of 1933 and the Securities Exchange Act of 1934, and its purpose is to protect ordinary investors who hand their savings to professional managers by building structural safeguards against conflicts of interest, self-dealing, and reckless risk-taking.
What Kinds of Funds the Act Covers
The Act sorts investment companies into three principal classes based on how they are organized and how they issue securities: face-amount certificate companies, unit investment trusts, and management companies.1GovInfo. Investment Company Act of 1940 – Section 4 Management companies are by far the most common, and they come in two forms.
Open-end management companies are what most people call mutual funds. They issue redeemable shares, meaning the fund itself buys back your shares at their net asset value whenever you want to sell.2Investment Company Institute. How US-Registered Investment Companies Operate and the Core Principles Underlying Their Regulation That redemption right is the defining feature, and it is the reason mutual funds must keep a portion of their holdings liquid at all times.
Closed-end funds issue a fixed number of shares in an initial offering, and those shares then trade on stock exchanges like ordinary stocks. Because the fund itself does not redeem shares, the market price can drift above or below the fund’s actual net asset value. This structure gives closed-end managers more freedom to invest in illiquid assets since they do not face daily redemption pressure.
Exchange-traded funds sit in a hybrid position. The SEC classifies most of them as open-end management companies, but they trade on exchanges throughout the day like closed-end funds while using a creation-and-redemption mechanism to keep market prices close to net asset value. Since 2019, most ETFs have operated under SEC Rule 6c-11, which lets them launch without a fund-specific exemptive order from the Commission.3eCFR. 17 CFR 270.6c-11 – Exchange-Traded Funds Under that rule, an ETF must publish its portfolio holdings, net asset value, market price, and bid-ask spread data on a free public website every business day.
Unit investment trusts buy a fixed portfolio of securities and hold them until a specified termination date. UITs have no board of directors and no investment adviser actively trading the portfolio once it is assembled.1GovInfo. Investment Company Act of 1940 – Section 4 Investors receive redeemable units representing an undivided interest in the underlying basket. Face-amount certificate companies, which issue debt-like certificates promising to pay a fixed sum at a future date, are the rarest category and largely a relic.
Business development companies occupy a separate niche. A BDC is a closed-end company that elects special status under the Act and invests primarily in the securities of small or developing private companies, providing those companies with significant managerial assistance.4Legal Information Institute. 15 USC 80a-2(a)(48) – Business Development Company Definition BDCs trade on public exchanges and give retail investors access to private-company portfolios.
How a Fund Registers
Any entity that meets the statutory definition of an investment company must register with the SEC before offering securities to the public. The process involves two filings. First, the company files Form N-8A, which formally notifies the SEC that it considers itself subject to the Act. After notification, the company files a registration statement providing a full picture of its business. Open-end management companies (including mutual funds and ETFs) use Form N-1A,5U.S. Securities and Exchange Commission. Form N-1A while closed-end funds use Form N-2. All filings go through the SEC’s Electronic Data Gathering, Analysis, and Retrieval system, known as EDGAR.6U.S. Securities and Exchange Commission. EDGAR Filer Manual
The registration statement must describe the fund’s fundamental investment policies, including its approach to borrowing, issuing senior securities, concentrating in a particular industry, and buying or selling real estate or commodities.7Office of the Law Revision Counsel. 15 USC 80a-8 – Registration of Investment Companies Once these fundamental policies are set, the fund cannot change them without a shareholder vote.8Office of the Law Revision Counsel. 15 USC 80a-13 – Changes in Investment Policy That lock-in exists so investors know upfront what kind of risk they are taking on.
Registration also costs money. For fiscal year 2026, the SEC fee rate is $138.10 per million dollars of securities registered.9U.S. Securities and Exchange Commission. Section 6(b) Filing Fee Rate Advisory for Fiscal Year 2026 Funds that continuously offer new shares pay this fee on an ongoing basis through annual filings rather than in a single upfront payment. Funds that sell shares in multiple states typically pay state-level notice filing fees as well.
Governance Rules That Protect Shareholders
The Act imposes a layered system of internal checks designed to keep fund managers from putting their own interests ahead of shareholders.
Board Composition
No more than 60 percent of a fund’s board can be “interested persons,” meaning people with a significant business relationship to the investment adviser or underwriter.10Office of the Law Revision Counsel. 15 USC 80a-10 – Affiliations or Interest of Directors, Officers, and Employees Put the other way, at least 40 percent of every board must be independent. In practice, most fund boards go well beyond this minimum. Independent directors serve as the primary watchdog over advisory fees, compliance, and conflicts of interest.
Restrictions on Affiliated Transactions
Section 17 flatly prohibits fund insiders from selling securities to the fund or buying securities from it.11Office of the Law Revision Counsel. 15 USC 80a-17 – Transactions of Certain Affiliated Persons and Underwriters Without this rule, a portfolio manager could dump personal holdings into the fund at inflated prices or cherry-pick the fund’s best assets for a personal account. The narrow exceptions require either a specific exemptive order from the SEC or fall within categories the statute carves out.
Custody of Fund Assets
All fund securities must be held separately from the investment adviser’s own assets, typically in the custody of a bank or other institution supervised by federal or state regulators.12eCFR. 17 CFR 270.17f-2 – Custody of Investments by Registered Management Investment Companies Securities must be physically segregated from those of any other person, and no one can access them without a board resolution limiting access to designated officers or employees acting jointly.13Investment Company Institute. How US-Registered Investment Companies Operate and the Core Principles Underlying Their Regulation – Custody An independent public accountant must verify the securities by actual examination at least three times per fiscal year, with at least two of those examinations chosen on a surprise basis.
Chief Compliance Officer
Every registered fund must designate a chief compliance officer responsible for administering written policies designed to prevent violations of federal securities laws.14eCFR. 17 CFR 270.38a-1 – Compliance Procedures and Practices of Certain Investment Companies The board, including a majority of independent directors, must approve the CCO’s appointment and compensation, and only the board can remove the CCO. That structure insulates the role from pressure by the adviser. The CCO delivers a written report to the board at least once a year and meets privately with the independent directors at least annually. No one at the fund or its service providers may coerce, mislead, or fraudulently influence the CCO.
Code of Ethics and Personal Trading
Funds, their advisers, and their principal underwriters must each adopt a written code of ethics governing personal securities trading by “access persons,” meaning employees with knowledge of current portfolio trades or recommendations.15eCFR. 17 CFR 270.17j-1 – Personal Investment Activities of Investment Company Personnel Access persons must file initial holdings reports within 10 days of joining, quarterly transaction reports within 30 days after each calendar quarter, and annual holdings reports. Investment personnel need pre-approval before buying shares in any initial public offering or limited offering. The board reviews a written summary of code violations and sanctions at least annually.
Fidelity Bond
Every registered management investment company must carry a fidelity bond from a reputable insurance company to protect against theft and embezzlement by officers and employees with access to the fund’s securities or cash.16eCFR. 17 CFR 270.17g-1 – Bonding of Officers and Employees of Registered Management Investment Companies The bond amount must be approved at least annually by a majority of the independent directors. Minimum bond amounts range from $50,000 for the smallest funds up to $2,500,000 for funds with more than $2 billion in gross assets.
Leverage Limits for Mutual Funds
Open-end funds cannot issue bonds, preferred stock, or other senior securities. The only leverage they can take on is borrowing from a bank, and even that comes with a hard constraint: the fund must maintain asset coverage of at least 300 percent immediately after borrowing.17Office of the Law Revision Counsel. 15 USC 80a-18 – Capital Structure of Investment Companies For every dollar borrowed, the fund must hold at least three dollars in total assets. This rule keeps mutual funds from amplifying losses through debt the way leveraged hedge funds sometimes do.
Disclosure and Ongoing Reporting
Transparency is one of the Act’s central pillars. Funds must deliver a steady stream of information to both the SEC and their shareholders.
Prospectus and Summary Prospectus
Before you invest in a mutual fund or ETF, the fund must provide a prospectus describing its investment objectives, risks, fees, and past performance. Open-end funds may satisfy this obligation by delivering a shorter summary prospectus as long as the full statutory prospectus, statement of additional information, and most recent shareholder reports remain freely available on the fund’s website.18eCFR. 17 CFR 230.498 – Summary Prospectuses for Open-End Management Investment Companies If you request a paper copy of the full prospectus, the fund must send it within three business days at no charge. The summary prospectus must include the fund’s name, ticker symbol, fees table, principal investment strategies, risks, and performance history in a standardized order so investors can compare funds side by side.
Shareholder Reports
Registered investment companies must transmit reports to shareholders at least twice a year and file annual reports with the SEC.19Office of the Law Revision Counsel. 15 USC 80a-29 – Reports and Financial Statements of Investment Companies and Affiliated Persons The annual report must include financial statements audited by an independent public accountant, covering the fund’s assets, liabilities, and a complete list of portfolio holdings. Semi-annual reports follow the same format but do not require an independent audit.
Filings With the SEC
Beyond shareholder-facing documents, funds file detailed data reports directly with the Commission. Form N-PORT requires monthly reporting of the fund’s complete portfolio holdings, risk metrics, and liquidity classifications. As of early 2026, these reports must be filed within 30 days after the end of each month, though the SEC has proposed extending that deadline to 45 days.20U.S. Securities and Exchange Commission. Fact Sheet – N-PORT Reporting and Names Rule Extension Form N-CEN is an annual census-type filing that the SEC uses for regulatory, enforcement, and policymaking purposes and must be submitted within 75 days after the fund’s fiscal year ends.21U.S. Securities and Exchange Commission. Form N-CEN
Tax Status Under Subchapter M
Most mutual funds and ETFs elect to be treated as regulated investment companies under Subchapter M of the Internal Revenue Code. This election matters enormously. A fund that qualifies avoids paying corporate-level tax on income and gains it distributes to shareholders, effectively passing the tax bill through to investors and eliminating double taxation.
Qualifying requires meeting three ongoing tests:22Office of the Law Revision Counsel. 26 USC 851 – Definition of Regulated Investment Company
- An income test: at least 90 percent of the fund’s gross income must come from dividends, interest, gains on securities sales, and similar investment income.
- A diversification test: at the end of each quarter, at least 50 percent of assets must be in cash, government securities, and diversified holdings where no single issuer exceeds 5 percent of total assets, and separately, no more than 25 percent of assets can be in the securities of any one issuer or a group of related issuers the fund controls.
- A distribution requirement: the fund must distribute at least 90 percent of its net investment income and net tax-exempt interest income to shareholders each year.23Internal Revenue Service. Instructions for Form 1120-RIC
A fund that fails any of these tests loses its pass-through status and gets taxed as an ordinary corporation, which would devastate shareholder returns. Managers monitor these requirements constantly, especially the diversification test, since a single position growing too large can trigger a violation at quarter-end.
Funds That Don’t Have to Register
Not every pooled investment vehicle must register under the Act. Two key exclusions allow hedge funds, private equity funds, and venture capital funds to operate outside the full registration framework.
Section 3(c)(1) excludes any fund with no more than 100 beneficial owners that does not make a public offering of its securities.24Office of the Law Revision Counsel. 15 USC 80a-3 – Definition of Investment Company Most smaller hedge funds and private equity funds rely on this exclusion. If another fund owns 10 percent or more of the issuer’s voting securities, the statute “looks through” that fund and counts each of its underlying holders toward the 100-person cap. Qualifying venture capital funds with no more than $10 million in aggregate capital contributions get a higher ceiling of 250 beneficial owners.
Section 3(c)(7) excludes funds whose securities are owned exclusively by qualified purchasers and that do not make a public offering.24Office of the Law Revision Counsel. 15 USC 80a-3 – Definition of Investment Company The qualified purchaser bar is high: an individual must own at least $5 million in investments, and an institutional investor acting on a discretionary basis must own and invest at least $25 million.25Office of the Law Revision Counsel. 15 USC 80a-2 – Definitions Many of the largest hedge funds operate under this exclusion, which imposes no cap on the number of investors.
Wealth management vehicles set up exclusively for a single family can avoid registration entirely under the family office exclusion. To qualify, the office must serve only “family clients,” be wholly owned by family clients, and not hold itself out to the public as an investment adviser.26eCFR. 17 CFR 275.202(a)(11)(G)-1 – Family Offices Family members include all lineal descendants of a common ancestor no more than 10 generations removed, plus their spouses. Key employees who participate in investment activities for at least 12 months also count as family clients. If even one outside investor slips in, the exclusion evaporates.
Penalties for Violating the Act
The Act gives the SEC both civil and criminal tools to punish violations.
Anyone who willfully violates any provision of the Act, or files documents containing material misstatements or omissions, faces up to five years in prison and a fine of up to $10,000 per violation.27Office of the Law Revision Counsel. 15 USC 80a-48 – Penalties There is one defense: a person cannot be convicted for violating an SEC rule or order if they can prove they had no actual knowledge of that rule or order. Ignorance of the statute itself is no defense.
The SEC can also impose civil monetary penalties in administrative proceedings without going to court. The statute establishes three tiers based on severity of the misconduct:28Office of the Law Revision Counsel. 15 USC 78u-2 – Civil Remedies in Administrative Proceedings
- First tier: up to $5,000 per violation for an individual or $50,000 for an entity, covering any violation of the Act or its rules.
- Second tier: up to $50,000 per violation for an individual or $250,000 for an entity, where the conduct involved fraud, manipulation, or reckless disregard of a regulatory requirement.
- Third tier: up to $100,000 per violation for an individual or $500,000 for an entity, where the fraudulent or reckless conduct caused substantial losses to others or substantial gain to the violator.
These are the base statutory amounts and are subject to periodic inflation adjustments. Beyond fines, the SEC can seek disgorgement of ill-gotten profits, injunctions barring individuals from serving as officers or directors of any fund, and suspension or revocation of a fund’s registration. A fund that loses its registration can no longer sell shares to the public, which effectively shuts it down.