Regulation D Guide: 506(b), 506(c), and Form D for Fund Managers

Raising a private fund involves more regulatory complexity than most first-time GPs expect. This isn’t hyperbole meant to scare you into hiring expensive counsel on day one (though you should hire fund counsel). It’s a straightforward observation: the securities laws governing private capital formation are layered, and mistakes in this area don’t just create legal exposure. They erode LP confidence in ways that are hard to recover from.

This guide covers the core regulatory framework that applies to most private fund managers in the United States. It’s designed as a reference, not a replacement for legal advice. Every fund structure has nuances that require counsel to navigate. But understanding the landscape before you sit down with your lawyer will make those conversations more productive and help you avoid the most common missteps.

This guide is for informational purposes only and does not constitute legal, tax, or investment advice. Consult qualified legal counsel for guidance specific to your fund and situation.

Why Compliance Matters More Than You Think

Most fund managers approach compliance as a legal obligation. File the right forms, check the right boxes, stay out of trouble. That framing misses the larger picture.

Compliance is an LP confidence signal. Institutional investors evaluate your operational infrastructure during due diligence, and your compliance program is a central part of that evaluation. A pension fund allocator reviewing your fund isn’t just looking at returns and strategy. They’re asking: does this manager have the infrastructure to handle investor capital responsibly? Can we defend this allocation to our board?

When an LP’s operational due diligence team reviews your compliance manual, your Form ADV, your policies and procedures, they’re forming a judgment about your professionalism and risk management capabilities. A thin or nonexistent compliance program doesn’t just create regulatory risk. It signals to institutional LPs that you may not be ready for institutional capital.

This is especially true for emerging managers. If you’re raising Fund I, you don’t have a track record of institutional LP relationships to fall back on. Your compliance infrastructure is one of the few concrete signals an LP can evaluate before committing.

The bottom line: compliance isn’t overhead. It’s part of your fundraise.

Securities Law Fundamentals for Fund Managers

Three federal statutes form the regulatory backbone of private fund management. Understanding what each one does (and what exemptions apply) is foundational.

The Securities Act of 1933

The Securities Act requires that any offer or sale of securities be registered with the SEC, unless an exemption applies. Fund interests (limited partnership interests, LLC membership interests) are securities. Since registering a private fund offering with the SEC is impractical and would undermine the entire private fund model, virtually every private fund relies on an exemption from registration. The most commonly used exemptions fall under Regulation D, which is covered in detail below.

The Investment Company Act of 1940

The Investment Company Act imposes extensive regulations on pooled investment vehicles. Mutual funds and ETFs operate under this Act. Private funds do not, because they rely on one of two exemptions:

• Section 3(c)(1): Limits the fund to 100 beneficial owners (or 250 for qualifying venture capital funds).
• Section 3(c)(7): No limit on the number of investors, but all investors must be “qualified purchasers” (generally $5 million in investments for individuals, $25 million for entities).

Your choice between 3(c)(1) and 3(c)(7) affects your investor base, minimum commitment sizes, and marketing approach. Most emerging managers use 3(c)(1) because the qualified purchaser threshold under 3(c)(7) significantly narrows the investor pool.

The Investment Advisers Act of 1940

The Advisers Act regulates investment advisers, which includes most private fund managers. Registration requirements depend on your assets under management and whether you qualify for an exemption. This is covered in the Investment Adviser Registration section below.

Regulation D: Your Offering Exemption

Regulation D is the exemption framework that makes private fund formation possible. Within Reg D, the two rules that matter for fund managers are Rule 506(b) and Rule 506(c). Both allow you to raise unlimited capital without registering the offering with the SEC, but they differ in significant ways.

The core distinction is straightforward: Rule 506(b) prohibits general solicitation but allows up to 35 non-accredited (sophisticated) investors and permits self-certification of accredited status. Rule 506(c) permits general solicitation but requires all investors to be accredited and mandates verification of that status.

For a detailed breakdown of how each rule works, how to choose between them, and the practical implications for your fundraise, see the complete 506(b) vs 506(c) comparison.

Documentation Requirements

Regardless of which exemption you choose, you’ll need:

• Private Placement Memorandum (PPM): Discloses the fund’s strategy, terms, risks, and conflicts of interest. While not technically required under Reg D for offerings limited to accredited investors, most fund counsel strongly recommend one. If you include non-accredited investors under 506(b), the disclosure requirements become significantly more detailed.
• Limited Partnership Agreement (LPA) or Operating Agreement: The governing document that defines the relationship between the GP and LPs, including management fees, carried interest, key person provisions, and GP removal rights.
• Subscription Agreement: The document each investor signs to subscribe for interests in the fund. This is where accredited investor representations are made and where you collect investor information for KYC/AML purposes.
• Side Letter Policy: Institutional LPs frequently negotiate side letters with customized terms. Having a policy on what you will and won’t grant in side letters, and maintaining a record of all side letters and their terms, is a compliance requirement as well as a practical necessity.

The Accredited Investor Rules

The SEC’s accredited investor definition determines who can invest in your fund under Regulation D. Getting this wrong can jeopardize your entire exemption.

Current SEC Definition

For individual investors, the accredited investor thresholds are:

• Income test: Annual income exceeding $200,000 individually (or $300,000 jointly with a spouse or spousal equivalent) in each of the two most recent years, with a reasonable expectation of the same in the current year.
• Net worth test: Net worth exceeding $1 million, individually or jointly with a spouse, excluding the value of the primary residence.
• Professional certifications: Holders of Series 7, Series 65, or Series 82 licenses in good standing qualify regardless of income or net worth.
• Knowledgeable employees: Employees of the fund who participate in investment activities qualify as accredited investors for that fund.

For entities, the primary threshold is $5 million in total assets. Entities in which all equity owners are individually accredited also qualify. Banks, insurance companies, registered investment companies, and certain employee benefit plans have separate qualification criteria.

Verification Under 506(c)

If you’re raising under Rule 506(c), self-certification is not sufficient. You must take “reasonable steps” to verify each investor’s accredited status. The SEC’s non-exclusive safe harbors include:

• Reviewing tax returns, W-2s, or K-1s for the income test.
• Reviewing bank and brokerage statements plus a credit report for the net worth test.
• Obtaining a written confirmation from a registered broker-dealer, SEC-registered investment adviser, licensed CPA, or attorney.
• For returning investors, obtaining an updated written certification that their status hasn’t changed.

Third-party verification services have become standard practice for 506(c) offerings. They handle the documentation review so the fund manager doesn’t need to collect investors’ personal financial documents directly.

Common Pitfalls

Conflating sophistication with accredited status. Under 506(b), you can accept sophisticated but non-accredited investors. Under 506(c), every investor must be accredited regardless of sophistication. These are different standards.

Ignoring the primary residence exclusion. When calculating net worth under the $1 million threshold, the value of the investor’s primary residence is excluded. Equity in the home doesn’t count toward the threshold, though mortgage debt in excess of fair market value must be deducted.

Forgetting spousal equivalents. The SEC expanded the definition in 2020 to include “spousal equivalents.” Joint income and net worth calculations apply to spousal equivalents the same way they apply to legal spouses.

Form D and Federal Filing Requirements

Form D is the notice filing that fund managers must submit to the SEC when relying on a Regulation D exemption. It’s not a registration. It’s a notification that you’re conducting an offering under Reg D.

Filing Timeline

Form D must be filed electronically through EDGAR within 15 days of the first sale of securities in the offering. The “first sale” is generally the date an investor’s subscription agreement is accepted and payment is received, though the exact timing can depend on how your fund documents define the closing process.

What Form D Covers

Form D collects basic information about:

• The issuer (your fund entity).
• The type of securities being offered (limited partnership interests, LLC interests, etc.).
• The Regulation D exemption being relied upon (506(b) or 506(c)).
• The total offering amount (or “indefinite” for open-ended offerings).
• The amount already sold.
• The number of investors.
• The use of proceeds (general categories).
• Sales commissions and finders’ fees paid.

Amendments

You must file an amendment to Form D annually if the offering is still ongoing, and whenever there’s a material change to the information previously reported. In practice, most fund managers file an amendment after each close to update the amount sold and investor count.

Common Mistakes

Late filing. Filing after the 15-day window is surprisingly common. While the SEC has not historically revoked Reg D exemptions solely for late Form D filings, state regulators are less forgiving. Several states impose fines for late filings, and some require their own notice filings with independent deadlines.

Failing to file amendments. If your fund holds multiple closes over 12 or more months, you need to file amendments to keep Form D current. Stale filings can trigger questions during regulatory examinations.

Incorrect exemption election. Filing Form D under 506(b) when you’ve been engaging in general solicitation, or under 506(c) without proper verification procedures, creates a mismatch that could be flagged in an examination.

State Securities Requirements

Federal Regulation D preempts state registration requirements for the offering itself, meaning you don’t need to register the securities in each state where you have investors. But it does not preempt state notice filing requirements, and this is where many fund managers get tripped up.

Blue Sky Laws

Each state has its own securities laws (called “blue sky laws”) that impose notice filing requirements on Reg D offerings. These requirements vary significantly by state.

State Notice Filings

Most states require you to file a copy of your federal Form D (and sometimes additional state-specific forms) within a specified time after the first sale to a resident of that state. Filing deadlines range from 15 days to 30 days depending on the state, and fees range from $0 to several hundred dollars per filing.

States With Additional Requirements

Some states impose requirements beyond simple notice filings:

• New York requires a separate Form D-related filing and has specific consent-to-service-of-process requirements.
• California may require additional disclosure for certain types of offerings.
• Florida, Texas, and several other states have their own filing forms, fees, and deadlines that don’t always align with the federal Form D timeline.

NASAA Coordination

The North American Securities Administrators Association (NASAA) has worked to harmonize state notice filing requirements through the Electronic Filing Depository (EFD), which allows you to submit notice filings to multiple states simultaneously. Using the EFD simplifies the process considerably, but you still need to know which states apply and what each one requires.

Fund counsel or a compliance service provider can handle state filings. This is one area where the administrative burden of doing it yourself often outweighs the cost of outsourcing.

Investment Adviser Registration

If you manage a private fund, you are likely an “investment adviser” under the Advisers Act. Whether you need to register depends on your AUM and whether you qualify for an exemption.

State vs. SEC Registration

The general dividing line is $150 million in regulatory assets under management (RAUM):

• Under $100 million RAUM: Register with your state securities regulator (unless your state doesn’t regulate advisers, in which case SEC registration may be required).
• $100 million to $150 million RAUM: You may register with either the SEC or your state, depending on specific circumstances.
• Over $150 million RAUM: SEC registration is required.

These thresholds apply to regulatory AUM, which is calculated differently from the net asset value you report to LPs. Regulatory AUM includes uncalled commitments, leverage, and certain other adjustments. Your fund counsel or compliance consultant can help you calculate this correctly.

Exempt Reporting Adviser (ERA)

If you qualify for an exemption from registration (such as the private fund adviser exemption or the venture capital fund adviser exemption), you may still need to file as an Exempt Reporting Adviser with the SEC. ERAs file a limited version of Form ADV and are subject to SEC examination authority, but they’re exempt from the full registration requirements.

Private Fund Adviser Exemption

Managers with less than $150 million in AUM in the United States who advise only private funds may qualify for the private fund adviser exemption. This is the most commonly used exemption for emerging managers. Note that this exemption doesn’t relieve you of all regulatory obligations. You still need to file as an ERA and maintain appropriate compliance infrastructure.

Venture Capital Fund Adviser Exemption

Managers who solely advise “qualifying venture capital funds” (as defined by the SEC) are exempt from registration regardless of AUM. The definition includes specific requirements around leverage, redemption rights, and the types of investments the fund makes. This exemption is narrower than it appears and requires careful analysis to ensure your fund qualifies.

Building Your Compliance Infrastructure

Your compliance infrastructure needs to be in place before you begin fundraising. Institutional LPs will ask about it during operational due diligence, and “we’re working on it” is not an acceptable answer.

Compliance Manual

Your compliance manual documents the policies and procedures that govern how your firm operates. At a minimum, it should cover:

• Allocation policy: How investment opportunities are allocated across funds and accounts.
• Valuation policy: How portfolio investments are valued, including who performs the valuation and what methodologies are used.
• Conflicts of interest: Identification and management of conflicts, including personal investments by firm personnel, cross-fund transactions, and affiliated service providers.
• Trading procedures: Best execution, trade allocation, and error correction.
• Confidentiality: How material non-public information is handled.

Chief Compliance Officer

Every registered adviser must designate a Chief Compliance Officer (CCO). For smaller firms, this is often the GP or a senior partner. The CCO is responsible for administering the compliance program and conducting an annual review of the firm’s policies and procedures.

If you’re an exempt reporting adviser, a formal CCO designation isn’t legally required but is still best practice. LPs expect it.

Code of Ethics

Your code of ethics establishes standards of conduct for firm personnel. Required elements include:

• Standards of business conduct reflecting the firm’s fiduciary duties.
• Personal trading policies, including pre-clearance and reporting requirements.
• Provisions for reporting violations.
• Distribution of the code to all supervised persons with annual acknowledgment.

Anti-Money Laundering (AML) Program

While private fund managers are not currently subject to the Bank Secrecy Act’s full AML requirements in the same way banks are, most fund counsel recommend implementing an AML program anyway. Institutional LPs expect it, and regulatory trends suggest expanded AML obligations may apply to private funds in the future.

Your AML program should include know-your-customer (KYC) procedures, investor identification and verification, sanctions screening (OFAC), and procedures for identifying and reporting suspicious activity.

Cybersecurity Policy

The SEC has increasingly focused on cybersecurity for registered advisers. Your cybersecurity policy should address data protection, incident response, vendor management, employee training, and access controls. Even if you’re exempt from registration, institutional LPs increasingly include cybersecurity in their ODD questionnaires.

Record Retention

Registered advisers must maintain books and records for specified periods (generally five years, with certain records requiring longer retention). Even unregistered managers should implement a retention policy that meets these standards. This includes all investor communications, trade records, valuation documents, compliance reviews, and marketing materials.

Marketing and Communications Compliance

How you communicate with prospective and existing investors is governed by your Regulation D exemption, your registration status, and SEC guidance on adviser advertising.

What You Can Say Under 506(b) vs 506(c)

Under 506(b), you cannot engage in general solicitation. This means no public advertising of the fund, no social media posts promoting the offering, no mass emails to people without a pre-existing substantive relationship. Your communications about the fund should be limited to people you already know or who come through documented warm introductions.

Under 506(c), general solicitation is permitted. You can advertise, post on social media, speak publicly about the fund, and reach out to prospects you don’t have a pre-existing relationship with. But your communications still need to be fair, balanced, and not misleading. The SEC’s advertising rule (Rule 206(4)-1 under the Advisers Act) applies to registered advisers and imposes requirements on testimonials, endorsements, performance advertising, and third-party ratings.

For a detailed comparison of how each exemption affects your marketing approach, see the 506(b) vs 506(c) breakdown.

Pre-Existing Relationship Documentation

If you’re raising under 506(b), document your pre-existing relationships with investors. This means maintaining records of when and how you met each investor, the nature of your relationship prior to the offering, and any substantive interactions you had before discussing the fund. If this sounds tedious, it is. But it’s the documentation that protects your exemption if it’s ever questioned.

Placement Agent Regulatory Considerations

If you use a placement agent, their regulatory status matters. Placement agents who receive transaction-based compensation (a percentage of capital raised) are generally required to be registered as broker-dealers with FINRA. Using an unregistered placement agent can create complications for your exemption and expose both you and the agent to regulatory risk.

Before engaging a placement agent, verify their FINRA registration, review their compliance procedures, and ensure the engagement is properly documented. For more on placement agent fee structures and what to look for in an engagement, see the placement agent fees guide.

Social Media and Website Compliance

Even under 506(c), your social media and website content must be fair and not misleading. Specific considerations:

• Performance claims must comply with the SEC’s advertising rule if you’re a registered adviser.
• Testimonials and endorsements require specific disclosures.
• Any content that could be construed as an offer of securities needs to comply with your chosen Reg D exemption.
• Retain copies of all marketing materials and social media posts as part of your books and records.

Ongoing Compliance Obligations

Compliance doesn’t end at closing. Ongoing obligations apply for as long as the fund is operating.

Annual Filings and Updates

• Form ADV annual amendment: Registered advisers must file an annual amendment to Form ADV within 90 days of their fiscal year end. ERAs file annual updates as well.
• Form D amendments: File amendments to Form D annually if the offering is ongoing, and whenever there’s a material change.
• State notice filings: Some states require annual renewals of notice filings.
• Form PF: Managers with $150 million or more in private fund AUM must file Form PF with the SEC, reporting systemic risk data. Smaller managers may be exempt but should monitor the threshold.

LP Reporting

Institutional LPs expect regular reporting on fund performance, portfolio activity, and operational matters. While LP reporting requirements are primarily contractual (driven by side letters and the LPA), they also have compliance dimensions:

• Valuation consistency: Your reported NAV must align with your valuation policy.
• Conflicts disclosure: Material conflicts that arise during the fund’s life must be disclosed to LPs.
• ILPA reporting standards: Many institutional LPs expect reporting that conforms to the Institutional Limited Partners Association (ILPA) templates and standards. Our guide to ILPA reporting standards covers the specific templates, metrics, and disclosure requirements that institutional allocators now treat as baseline.

Regulatory Examinations

Both the SEC and state regulators conduct examinations of registered advisers and, less frequently, ERAs. Examinations typically cover:

• Compliance policies and procedures (and evidence of the annual review).
• Marketing materials and investor communications.
• Trade allocation and best execution.
• Valuation procedures.
• Fee calculations and disclosures.
• Books and records.

The best preparation for an examination is maintaining your compliance program consistently, not scrambling to create documentation when you receive an exam notice. Examiners can identify after-the-fact compliance work, and it reflects poorly on the firm.

Common Compliance Mistakes

Having worked with fund managers at various stages, certain mistakes come up repeatedly. Most are avoidable with basic planning.

Launching without a compliance manual. Some managers view the compliance manual as something they’ll “get to eventually.” Institutional LPs ask for it during ODD. Not having one signals that compliance is an afterthought.

Ignoring state requirements. Federal preemption under Reg D covers the offering itself, not state notice filings. Each state where you have investors may require a notice filing, a fee, or both. Missing these deadlines can result in fines, and in some states, it can affect your ability to offer securities to residents of that state.

Inadequate accredited investor verification. Under 506(c), a checkbox on a subscription agreement is not verification. Under 506(b), while self-certification is permitted, maintaining no documentation at all is risky. Have a consistent process and follow it for every investor.

Poor record keeping. The SEC expects advisers to maintain organized, accessible records. Investor communications in a personal email inbox, valuation memos that exist only in someone’s head, and compliance reviews that were never documented all create problems during examinations.

Underestimating the GP commitment question. This isn’t strictly a compliance issue, but it comes up in the same conversations. LPs will ask about your GP commitment early and often. According to Carta data, the average GP commitment is approximately 2.55% of fund size for PE funds and 1.7% for VC funds. If your commitment is significantly below these benchmarks, be prepared to explain why. Having a clear, defensible answer is part of your overall readiness.

Treating compliance as a one-time setup. Your compliance program requires ongoing attention. The annual review, policy updates when regulations change, training for new personnel, and consistent documentation are all part of the job. A compliance manual that was written three years ago and never updated is nearly as problematic as not having one at all.

Not coordinating your fundraise timeline with compliance milestones. Your Form D filing, state notice filings, and investment adviser registration (or ERA filing) all have deadlines that need to align with your fundraising timeline. Building these milestones into your fundraise planning prevents last-minute scrambles.

The Bottom Line

Capital raising compliance is not a single event. It’s a framework that spans your fund’s entire lifecycle, from formation through final distribution. The regulatory requirements are real, but they’re also navigable with proper planning and competent counsel.

The fund managers who handle compliance well share a few characteristics: they engage fund counsel early, they build compliance infrastructure before launching the fundraise, they maintain consistent documentation throughout the fund’s life, and they treat regulatory obligations as part of professional fund management rather than bureaucratic obstacles.

If you’re forming your first fund, start with fund counsel. Have them walk you through the specific exemptions, registrations, and filings that apply to your structure. Use this guide as a framework for those conversations, not a substitute for them.

The regulatory landscape evolves. SEC rulemaking, state law changes, and enforcement priorities shift over time. What doesn’t change is the basic principle: LPs entrust their capital to managers who demonstrate that they can handle it responsibly. Your compliance program is one of the clearest signals you send.

This guide is for informational purposes only and does not constitute legal, tax, or investment advice. Securities laws are complex and jurisdiction-specific. Always consult qualified legal counsel before making decisions about your fund’s regulatory compliance.