Securities Exams19 min read

Series 65 Ethics & Fiduciary Duty Guide 2026: Laws, Regulations & Prohibited Practices

Master the Series 65 Laws & Regulations section (30% of the exam and the #1 fail area). Comprehensive guide to fiduciary duty, the Uniform Securities Act, prohibited practices, registration requirements, fee structures, custody rules, and administrator powers -- with memory tricks, tables, and practice questions.

Ran Chen, EA, CFP®February 8, 2026

Key Facts

  • The Laws, Regulations, and Guidelines section accounts for 30% of the Series 65 exam (approximately 39 scored questions) and is the highest fail area for candidates.
  • Investment advisers owe a fiduciary duty to clients -- the highest legal standard of care -- while broker-dealers are held to a suitability standard (or Regulation Best Interest for recommendations).
  • Under the Uniform Securities Act, investment advisers with $100 million or more in AUM must register with the SEC (federal covered), while those below the threshold register with the state.
  • Prohibited practices under the USA include churning, front-running, selling away, commingling client funds, sharing in client gains/losses (except proportionally with written consent), and guaranteeing against loss.
  • The state securities administrator has the power to deny, suspend, revoke, or cancel registrations and can issue cease and desist orders, but cannot impose jail sentences -- only courts can do that.
  • Performance-based fees are generally prohibited for investment advisers unless the client meets the "qualified client" threshold -- currently $1.1 million in AUM or a net worth exceeding $2.2 million.

📺 Watch the Video

Last updated: February 2026 | Sources: NASAA, SEC, Uniform Securities Act

Why the Laws & Regulations Section Is Where Most Candidates Fail

The Laws, Regulations, and Guidelines section accounts for 30% of the Series 65 exam -- approximately 39 scored questions out of 130. That makes it the joint-largest section on the test (tied with Client Investment Recommendations and Strategies). But here is the critical difference: it is the section where the most candidates lose their passing margin.

Why? Three reasons:

  1. The material is dense and legalistic. The Uniform Securities Act reads like a law textbook. Registration requirements, exemptions, exclusions, prohibited practices, and administrator powers all have precise definitions with subtle distinctions that trip up even experienced finance professionals.

  2. Candidates underestimate it. Many test-takers come from investment backgrounds and assume their market knowledge will carry them. They spend weeks on portfolio theory and economics but give the Laws section only a few days. That is a fatal miscalculation.

  3. The questions test distinctions, not definitions. The exam rarely asks "what is a fiduciary?" It asks questions like: "In which of the following situations does the adviser NOT have a fiduciary obligation?" or "Which of the following persons is EXCLUDED from the definition of investment adviser?" These require precision, not general knowledge.

The bottom line: If you master this section, you give yourself a massive advantage. If you neglect it, you are almost certainly going to fail. This guide breaks down every major topic in the Laws & Regulations section so you can walk into the exam confident.

Start FREE Series 65 Practice Questions -->Free exam prep with practice questions & AI tutor

Fiduciary Duty Explained: Investment Advisers vs. Broker-Dealers

Understanding fiduciary duty is the single most important concept in the Laws section. The Series 65 exists specifically to license people who will be held to this standard, so expect it to be tested from multiple angles.

What Is Fiduciary Duty?

A fiduciary is a person who holds a legal obligation to act in another party's best interest. For investment advisers, this means:

  • Duty of Loyalty: Put the client's interests ahead of your own in every situation
  • Duty of Care: Provide advice that is suitable, well-researched, and in the client's best interest
  • Duty of Disclosure: Reveal all material facts, including conflicts of interest, fees, and disciplinary history
  • Duty to Seek Best Execution: Obtain the most favorable terms reasonably available for client transactions
  • Duty to Monitor: Continuously review client accounts and update recommendations as circumstances change

Fiduciary vs. Suitability: The Critical Distinction

StandardFiduciary Duty (IA Standard)Suitability / Reg BI (BD Standard)
WhoInvestment Advisers (IAs) and IARsBroker-Dealers (BDs) and Agents
Core ObligationAct in the client's best interest at all timesRecommendation must be suitable at the time it is made
ConflictsMust avoid or fully disclose all conflictsMust disclose conflicts at time of recommendation
Ongoing DutyYes -- continuous monitoring obligationNo -- duty applies at the time of recommendation
CompensationFee-based (AUM, hourly, flat fee, performance-based for qualified clients)Commission-based or fee-based
Legal SourceInvestment Advisers Act of 1940; state lawFINRA Rules; SEC Regulation Best Interest
Key Phrase"Best interest of the client""Suitable based on client's profile"

Exam Tip: When a question describes a person giving investment advice for compensation in an ongoing relationship, that person is almost certainly an investment adviser held to the fiduciary standard. When a question describes a one-time securities transaction, think broker-dealer and suitability.

Memory Trick: IA = I Always put clients first (fiduciary). BD = Before the Deal is suitable (suitability at time of recommendation).


The Uniform Securities Act (USA): Registration Requirements

The Uniform Securities Act is the backbone of the entire Laws section. It is a model state securities law that most states have adopted (with modifications). The Series 65 tests the USA extensively because it governs how investment advisers, their representatives, broker-dealers, and agents operate at the state level.

Who Must Register?

The USA requires registration for four categories of persons:

PersonDefinitionRegisters With
Investment Adviser (IA)A person who, for compensation, engages in the business of advising others about securitiesState (if AUM < $100M) or SEC (if AUM >= $100M)
Investment Adviser Representative (IAR)An individual who represents an IA and makes recommendations, manages accounts, or solicits advisory servicesState where they have an office or meet clients
Broker-Dealer (BD)A person in the business of effecting transactions in securities for the accounts of others or for their own accountState and FINRA/SEC
AgentAn individual who represents a BD in effecting or attempting to effect securities transactionsState where they operate

The $100 Million AUM Threshold

This is one of the most tested concepts:

  • Under $100 million AUM: Register with the state (state-registered adviser)
  • $100 million to $110 million AUM: May register with either the state or SEC (buffer zone)
  • $110 million AUM and above: Must register with the SEC (federal covered adviser)

Exam Tip: Federal covered advisers are not subject to state registration requirements, but they must still notice file in states where they conduct business. Notice filing means filing a copy of their Form ADV and paying a fee -- but the state does not "register" them and cannot impose additional requirements beyond what the SEC requires.

free Series 65 questionsFree exam prep with practice questions & AI tutor

Registration Exemptions: Who Does Not Need to Register

Not every person who provides investment-related services must register as an IA. The USA provides several important exclusions and exemptions.

Excluded from the Definition of Investment Adviser

These persons are not investment advisers under the USA and therefore have no registration requirement:

Excluded PersonCondition for Exclusion
Banks and trust companiesAutomatically excluded (regulated by banking regulators)
Lawyers, accountants, engineers, teachersAdvice must be incidental to their profession and they receive no special compensation for it
Broker-dealersAdvice must be incidental to BD business and they receive no special compensation for it
PublishersMust be of general and regular circulation (not personalized advice) -- the "bona fide publisher" exclusion
Federal covered advisersExcluded from state registration (registered with SEC instead)
Any person the administrator designatesState administrator has authority to exclude specific persons by rule or order

Exam Tip: The two-part test for the LATE exclusion (Lawyers, Accountants, Teachers, Engineers) is critical: (1) advice must be incidental to their profession, AND (2) they receive no special compensation for the advice. If either condition fails, they must register as an IA. Remember: LATE = Lawyers, Accountants, Teachers, Engineers.

Exempt from Registration (But Still an IA)

These persons meet the definition of IA but are exempt from registration:

  • IAs with no place of business in the state who deal only with institutional clients (banks, insurance companies, other IAs, broker-dealers, pension plans)
  • IAs with no place of business in the state who have 5 or fewer non-institutional clients in the state during the preceding 12 months (the de minimis exemption)
  • Federal covered advisers (registered with the SEC, not the state)

Exam Tip: The de minimis exemption is a common trap. An IA from another state can advise up to 5 non-institutional clients in a state without registering there -- but only if they have no place of business in that state. Once they open an office, they must register regardless of the number of clients.


Prohibited Practices: What You Cannot Do

This is the highest-yield subtopic in the Laws section. The USA and NASAA model rules define a long list of fraudulent, unethical, and prohibited business practices. Expect 8-12 questions on prohibited practices alone.

Prohibited Practices Table

PracticeDescriptionWhy It Is Prohibited
ChurningExcessive trading in a client account to generate commissionsPuts adviser/agent compensation ahead of client interests
Front-runningTrading in a personal account ahead of a client's pending orderExploits knowledge of client orders for personal gain
Selling awayConducting securities transactions outside the employing firmViolates firm supervision requirements and exposes clients to unregistered activity
ComminglingMixing client funds with the adviser's own fundsCreates risk of misappropriation and makes accounting impossible
Sharing in client gains/lossesSharing in profits or losses of a client account disproportionatelyException: proportional sharing is permitted with written client consent (the adviser's share must not exceed their proportional contribution)
Guaranteeing against lossPromising a client that they will not lose moneyNo investment is risk-free; guarantees are inherently misleading
Unauthorized tradingMaking trades without client authorization (absent discretionary authority)Violates the client's right to control their own account
MisrepresentationMaking false or misleading statements about securities, services, or qualificationsDeceives clients and undermines informed decision-making
Omission of material factsFailing to disclose information that a reasonable investor would consider importantSame as misrepresentation -- deception through silence
Borrowing from or lending to clientsPersonal financial transactions between adviser and clientCreates conflicts of interest and potential for exploitation
Backdating recordsAltering transaction dates or recordsFraud -- undermines regulatory oversight and client trust
Recommending unsuitable investmentsRecommending securities that do not match the client's risk tolerance, objectives, or financial situationViolates the duty of care and suitability obligations

The Sharing Exception You Must Know

The prohibition on sharing in client gains/losses has one critical exception:

Proportional sharing is permitted if:

  1. The client provides written consent
  2. The adviser's share of gains/losses does not exceed their proportional contribution to the account

Example: If an adviser contributes 30% of the funds in a joint account and the client contributes 70%, the adviser may share in up to 30% of the gains or losses -- but not more. This must be documented in writing.

Memory Trick for Prohibited Practices: Think "FCGS-CUB" -- Front-running, Churning, Guaranteeing against loss, Selling away, Commingling, Unauthorized trading, Borrowing from clients. If you can remember these seven, you will catch most prohibited practices questions.


Investment Adviser Fee Structures

The Series 65 tests your knowledge of how advisers are compensated and which fee arrangements are permitted under the law.

Common Fee Structures

Fee TypeDescriptionKey Rules
AUM-based (% of assets)Adviser charges a percentage of client assets under management (typically 0.5%-2%)Most common; aligns adviser and client interests (adviser earns more when client's portfolio grows)
Hourly feesAdviser charges a fixed hourly rate for advisory servicesMust be disclosed in advance; common for financial planning-only engagements
Flat/fixed feesAdviser charges a set fee for a defined scope of servicesMust be disclosed; used for financial plans, consultations
Wrap feesSingle fee covers advisory services, trading costs, and custodial services bundled togetherMust disclose that trades are not individually commissioned; may create incentive for adviser to trade less
Performance-based feesAdviser compensation tied to investment performance (e.g., percentage of capital gains)Generally prohibited -- allowed only for qualified clients

The Qualified Client Exception for Performance Fees

Performance-based fees are prohibited under the Investment Advisers Act of 1940 (Section 205) and the USA -- unless the client qualifies:

Qualified Client ThresholdAmount (as of 2026)
AUM with the adviser$1.1 million or more
Net worthExceeding $2.2 million (excluding primary residence)
Qualified purchaser$5 million or more in investments
Company executivesKnowledgeable employees of the adviser

Exam Tip: The qualified client thresholds are adjusted for inflation by the SEC. Know the current numbers. Also understand why the exception exists: sophisticated, wealthy investors are presumed to understand the risks of performance fee arrangements and do not need the same protections as retail investors.

Practice Series 65 Questions FREE -->Free exam prep with practice questions & AI tutor

Custody and Disclosure Requirements

Custody and disclosure rules protect clients from adviser misconduct. These rules generate several exam questions because the requirements are specific and detail-oriented.

Custody of Client Assets

An investment adviser has custody when it directly or indirectly holds, has access to, or has authority over client funds or securities. Under the USA and SEC rules:

RequirementDetails
NotificationMust notify the state administrator (or SEC) that the adviser has custody
SegregationClient assets must be held in a separate account -- never commingled with adviser funds
Qualified custodianClient assets must be maintained with a qualified custodian (bank, BD, etc.)
Account statementsClients must receive account statements at least quarterly from the custodian or the adviser
Surprise auditState-registered advisers with custody may be subject to an annual surprise examination by an independent public accountant
Balance sheetAn adviser with custody (or who requires prepayment of fees exceeding $500 for 6+ months) must include an audited balance sheet in Part 2A of Form ADV

Form ADV: The Adviser's Registration Document

Form ADV is the primary registration and disclosure document for investment advisers. It has two main parts:

PartContentsDelivered To
Part 1Organizational information, disciplinary history, business practices, AUM, number of employeesFiled with SEC or state (not delivered to clients)
Part 2A (The Brochure)Services, fees, investment strategies, disciplinary information, conflicts of interest, education/experienceMust be delivered to clients
Part 2B (Brochure Supplement)Information about specific individuals who provide advice (education, experience, disciplinary history)Must be delivered to clients assigned to that individual

The Brochure Rule (Rule 204-3)

The brochure rule requires delivery of Form ADV Part 2A under one of two methods:

  • 48-hour rule: Deliver the brochure at least 48 hours before entering into the advisory contract, OR
  • Right of rescission: Deliver at the time of entering the contract, and the client has 5 business days to terminate without penalty

Annual updates: Each year, the adviser must deliver either a summary of material changes or an updated brochure within 120 days of the end of the adviser's fiscal year.

Exam Tip: The balance sheet disclosure is required in two specific situations: (1) the adviser has custody of client assets, or (2) the adviser requires prepayment of fees exceeding $500 for 6 or more months in advance. If neither condition applies, no balance sheet is required.


Ethical Business Practices

Beyond prohibited practices, the Series 65 tests your understanding of affirmative ethical duties that advisers must follow.

Suitability and Best Interest

Every recommendation must be suitable for the client based on:

  • Financial situation (income, net worth, liquidity needs)
  • Investment objectives (growth, income, preservation, speculation)
  • Risk tolerance (conservative, moderate, aggressive)
  • Time horizon (short-term, intermediate, long-term)
  • Tax status (bracket, tax-advantaged account availability)
  • Other investments (existing portfolio, concentration risk)
  • Special circumstances (age, health, dependent care, legal restrictions)

Best Execution

Investment advisers have a duty to seek the most favorable terms reasonably available for client transactions. This does not mean the absolute lowest price in every case -- it means considering the total cost, including:

  • Commission or markup/markdown
  • Speed of execution
  • Likelihood of execution at the desired price
  • Quality of research and other services provided by the executing broker

Soft Dollars (Section 28(e) Safe Harbor)

Soft dollars are credits or benefits that an adviser receives from a broker-dealer in exchange for directing client trades to that firm. Under Section 28(e) of the Securities Exchange Act:

Permitted Soft Dollar UsesNOT Permitted
Research reports and analysisOffice rent or utilities
Financial publications and dataStaff salaries
Trading and portfolio management softwareTravel and entertainment
Market data and pricing servicesPersonal expenses
Quantitative analysis toolsMarketing materials

Exam Tip: The key rule is that soft dollar benefits must provide a legitimate research or trading benefit to clients. If the benefit is for the adviser's general overhead or personal use, it violates the soft dollar safe harbor and must not be paid with client commissions.

Allocation of IPOs

When an investment adviser obtains shares in an initial public offering (IPO), the shares must be allocated fairly among client accounts. Prohibited allocation practices include:

  • Allocating IPO shares only to the adviser's favored clients or personal accounts
  • Giving disproportionate shares to fee-paying clients over others
  • Front-running client allocations by purchasing IPO shares for the adviser's own account first

The rule: IPO shares must be allocated based on a written allocation policy that treats all eligible clients fairly and equitably.

Practice Ethics Questions FREE -->Free exam prep with practice questions & AI tutor

Administrator Powers: The ABCD Framework

The state securities administrator is the regulatory authority charged with enforcing the Uniform Securities Act within the state. Understanding the administrator's powers is essential -- expect 3-5 questions on this topic.

What the Administrator CAN Do

Use the DSRC memory trick: the administrator can Deny, Suspend, Revoke, or Cancel registrations.

PowerDescriptionHearing Required?
DenyRefuse to grant a pending registration applicationNo prior hearing required (but applicant can request one)
SuspendTemporarily halt a current registrationYes -- prior hearing required
RevokePermanently terminate a registrationYes -- prior hearing required
CancelRemove a registration when the registrant can no longer be located, is deceased, is mentally incompetent, or has ceased to existNo hearing required (this is a non-punitive, administrative action)

Other Administrator Powers

PowerDetails
InvestigateCan investigate potential violations within or outside the state
SubpoenaCan issue subpoenas for witnesses, documents, and records
Cease and desistCan issue orders to stop violations without a prior hearing
Seek injunctionsCan apply to a court for injunctive relief
Administrative penaltiesCan impose fines and conditions on registrations

What the Administrator CANNOT Do

This is where exam questions get tricky:

  • Cannot impose jail sentences -- only a court can impose criminal penalties
  • Cannot make rules about margin requirements -- that is the Federal Reserve (Regulation T)
  • Cannot grant judicial remedies -- must go to court for injunctions and criminal penalties
  • Cannot grant exemptions for federal covered securities -- those are exclusively under SEC jurisdiction

Memory Trick -- ABCD of Administrator Powers:

  • A = Administrator can Act (investigate, subpoena, cease and desist) without a hearing
  • B = Before suspending or revoking, a hearing is required
  • C = Cancel is non-punitive and requires no hearing
  • D = Deny a pending application without a prior hearing (but must provide opportunity to request one)

Grounds for Denial, Suspension, or Revocation

The administrator can take action based on:

  • Filing an incomplete, misleading, or false application
  • Conviction of a securities-related felony within the past 10 years
  • Conviction of any felony within the past 10 years
  • Being subject to an order from another securities regulator (SEC, another state, SRO)
  • Being enjoined by a court from engaging in securities business
  • Engaging in dishonest or unethical business practices
  • Being insolvent (not merely having liabilities exceed assets, but inability to meet obligations as they come due)
  • Failure to supervise agents or IARs
  • Lack of qualification (but this applies only to the applicant, not to successors)

Exam Tip: A withdrawal of registration becomes effective 30 days after filing (or later if the administrator begins proceedings). The administrator can institute proceedings against a withdrawn registration for up to one year after the withdrawal becomes effective.

free Series 65 questionsFree exam prep with practice questions & AI tutor

Recent 2026 Updates: What Is New for Series 65 Candidates

NASAA and state regulators regularly update their model rules. Here are the developments that 2026 Series 65 candidates should be aware of:

Continuing Education for IARs

NASAA has implemented a continuing education (CE) program for investment adviser representatives that includes:

  • Products and Practice: Annual training on current regulatory developments, compliance best practices, and investment product knowledge
  • Ethics and Professional Responsibility: Annual training on fiduciary duty, conflicts of interest, and ethical decision-making
  • Reporting: IARs must complete CE requirements and report compliance through the IARD system

Exam Tip: While the Series 65 exam itself has not historically tested CE in depth, expect questions on the general principle that IARs must maintain current knowledge and stay up to date on regulatory changes.

Protection of Seniors and Vulnerable Adults

NASAA has adopted model rules that address the financial exploitation of seniors and vulnerable adults:

  • Mandatory reporting: Financial professionals may be required to report suspected financial exploitation to state securities regulators and/or Adult Protective Services
  • Temporary holds: Broker-dealers and investment advisers may place a temporary hold on disbursements from an account if there is a reasonable belief that financial exploitation is occurring
  • Trusted contact person: Firms may request that clients designate a trusted contact person who can be notified in cases of suspected exploitation or diminished capacity
  • Safe harbor: Firms and individuals who report suspected exploitation in good faith are generally protected from liability

Digital Assets and Cybersecurity

State securities regulators are increasingly focused on:

  • Digital asset securities: Tokens and digital assets that meet the definition of a security must comply with existing registration requirements
  • Cybersecurity policies: Investment advisers must implement written cybersecurity policies covering data protection, incident response, and client notification
  • Custody of digital assets: Advisers who have custody of digital asset securities must comply with the same custody rules that apply to traditional securities

NASAA Model Rules and Modernization

NASAA continues to update its model rules to address:

  • Remote work and virtual offices: Clarification on what constitutes a "place of business" for registration and de minimis purposes
  • Electronic delivery: Updated guidance on electronic delivery of brochures, account statements, and other required documents
  • Form ADV updates: Ongoing amendments to require more detailed disclosure about adviser operations, conflicts, and risk management

Exam Strategy: How to Master the Laws Section

Step 1: Learn the Framework First

Before memorizing details, understand the overall structure:

  1. Who must register? (IAs, IARs, BDs, Agents)
  2. Who is excluded or exempt? (LATE professionals, federal covered advisers, de minimis)
  3. What is prohibited? (Churning, front-running, commingling, etc.)
  4. What must be disclosed? (Form ADV, brochure rule, conflicts)
  5. What can the administrator do? (DSRC, investigate, cease and desist)

Step 2: Use Comparison Tables

The exam tests distinctions. Build tables comparing:

  • IA vs. BD (fiduciary vs. suitability)
  • Excluded vs. Exempt (not an IA vs. IA but exempt from registration)
  • State vs. Federal registration ($100M AUM threshold)
  • Deny vs. Suspend vs. Revoke vs. Cancel (hearing requirements)
  • Exempt securities vs. Exempt transactions (different concepts)

Step 3: Practice 100+ Laws Questions

Do not stop at reading -- active recall through practice questions is the most effective study method. Aim for at least 100 questions specifically on Laws, Regulations, and Guidelines before exam day.

Step 4: Use Memory Tricks

ConceptMemory Trick
Excluded professionalsLATE -- Lawyers, Accountants, Teachers, Engineers (advice incidental + no special compensation)
Administrator powersDSRC -- Deny, Suspend, Revoke, Cancel
Prohibited practicesFCGS-CUB -- Front-running, Churning, Guaranteeing, Selling away, Commingling, Unauthorized trading, Borrowing
Brochure delivery48 hours before OR at signing + 5-day rescission
Performance fee exceptionQualified clients: $1.1M AUM or $2.2M net worth
Custody statementsQuarterly minimum
Withdrawal effective30 days after filing
Get Your FREE Series 65 Study Plan -->Free exam prep with practice questions & AI tutor

Key Takeaways

  1. The Laws & Regulations section (30%) is the #1 reason candidates fail the Series 65. Give it disproportionate study time -- at least 30-40% of your total preparation.

  2. Fiduciary duty is the foundation. Investment advisers must act in the client's best interest at all times. Broker-dealers are held to suitability/Reg BI. Know the distinction cold.

  3. Master the Uniform Securities Act. Registration requirements, the $100M AUM threshold, the LATE exclusion, and the de minimis exemption are tested from every angle.

  4. Memorize prohibited practices. Churning, front-running, commingling, selling away, guaranteeing against loss, and unauthorized trading are the most commonly tested violations.

  5. Know the administrator's powers and limits. The administrator can deny, suspend, revoke, and cancel -- but cannot impose jail time. Suspension and revocation require a prior hearing; denial and cancellation do not.

  6. Understand fee structures and the qualified client exception. Performance fees are prohibited unless the client has $1.1M+ AUM or $2.2M+ net worth.

  7. Custody and disclosure rules are detail-heavy. Quarterly statements, surprise audits, the brochure rule (48 hours or 5-day rescission), and balance sheet requirements all generate exam questions.

  8. Use memory tricks. LATE, DSRC, FCGS-CUB, and the other mnemonics in this guide will save you on exam day when you are under time pressure.

The Laws & Regulations section is not inherently harder than other sections -- it is just different. It rewards precision, attention to detail, and disciplined memorization of specific rules. With the right approach, it can become your highest-scoring section and the competitive advantage that gets you past the 72.31% passing threshold.

Start Your FREE Series 65 Prep Now -->Free exam prep with practice questions & AI tutor

Good luck with your Series 65 exam!

Test Your Knowledge
Question 1 of 5

An investment adviser charges a client a fee based on the capital gains in the account. Under the Uniform Securities Act, this arrangement is:

A
Permitted for all clients with written consent
B
Prohibited for all clients without exception
C
Permitted only for qualified clients meeting specific net worth or AUM thresholds
D
Permitted only if approved by the state administrator
Learn More with AI

10 free AI interactions per day

Series 65Series 65 ethicsfiduciary dutyUniform Securities Actinvestment adviserprohibited practicesSeries 65 regulationsNASAAIARSeries 65 exam prep

Start Your Free Learning

Related Articles

Stay Updated

Get free exam tips and study guides delivered to your inbox.