Series 65 Ethics and Fiduciary Duty Guide (2026)

Last verified: July 16, 2026. This guide uses the current NASAA outline and study guide, FINRA's exam pages, and SEC primary materials.

The exam facts to anchor first

The Series 65 is NASAA's Uniform Investment Adviser Law Examination, administered by FINRA. The current test specifications became effective June 12, 2023. A candidate sees 140 multiple-choice questions: 130 scored questions and 10 unscored pretest questions. The pretest items are not identified, so every question should be treated as scored. The time limit is 180 minutes, the current fee is $187, and the passing requirement is at least 92 correct answers among the 130 scored questions.

That last point matters. NASAA states a count, not a rounded percentage. Converting 92 of 130 into a percentage and then rounding it to 70%, 71%, or 72% creates unnecessary contradictions. Use the official number: 92.

Also keep two different quantities separate:

• Exam metadata: 140 questions displayed, of which 130 are scored.
• Practice-bank inventory: however many original practice questions a preparation site currently contains.

A practice bank can grow without changing the official exam. Its inventory must never be used as the exam's totalQuestions value.

NASAA's current scored-domain allocation is:

The laws domain is tied for the largest allocation. It is accurate to call it heavily weighted. It is not accurate to call it the top failure area or the number-one reason candidates fail unless reliable section-level outcome data supports that claim. NASAA does not make that claim in the outline or study guide.

What Domain IV actually covers

The official outline is a better study map than a list of guessed question frequencies. Domain IV covers regulation of state- and federally registered investment advisers, investment adviser representatives, broker-dealers, and agents; securities and issuer definitions; registration and exemptions; administrator authority and remedies; communications with clients and prospects; ethical practices and fiduciary obligations; privacy and cybersecurity; and business continuity and succession planning.

Within the ethics portion, the outline expressly includes compensation and fee disclosures, performance fees, soft dollars, custody, discretionary authority, trading authority, standard of care, anti-money-laundering concepts, conflicts of interest, loans, sharing in gains and losses, confidentiality, insider trading, selling away, market manipulation, personal and outside accounts, political contributions, excessive trading, and exploitation of vulnerable adults.

This does not mean NASAA promises a fixed number of questions on churning, administrator hearings, brochure delivery, or any other subtopic. Study the relationships and apply them to scenarios instead of relying on unsupported predictions such as 'expect three to five questions.'

NASAA also warns that its examination questions are copyrighted and does not release real or recalled items. Legitimate practice questions should be original. The NASAA study guide says Series 65 tests the Uniform Securities Act of 1956, as amended by NASAA, rather than the 2002 Uniform Securities Act.

Investment adviser fiduciary duty

For federally registered investment advisers, the SEC describes fiduciary duty under the Investment Advisers Act as comprising a duty of care and a duty of loyalty. It applies to the entire adviser-client relationship, but the application of the duty depends on the agreed scope of that relationship.

The duty of care includes providing advice in the client's best interest, seeking best execution when selecting broker-dealers to execute client trades, and providing advice and monitoring over the course of the relationship when that is part of the agreed service. The duty of loyalty requires the adviser not to subordinate the client's interests to its own. An adviser must eliminate a conflict or make full and fair disclosure so the client can provide informed consent.

Avoid two shortcuts:

1. 'Every adviser must continuously monitor every account.' Monitoring depends on the scope and duration of the advisory relationship. An ongoing portfolio-management engagement differs from a one-time financial plan.
2. 'Disclosure automatically cures every conflict.' Disclosure must be sufficiently specific for informed consent, and some conflicts may need to be eliminated rather than described vaguely.

State-registered advisers and IARs are also subject to applicable state law and rules. For exam questions, identify the actor, the regulator, the relationship, the authority granted, the compensation, and the conflict before choosing an answer.

Broker-dealers: Regulation Best Interest is not merely suitability

A common outdated comparison says advisers are fiduciaries while broker-dealers only need a suitable recommendation. That description omits the SEC's Regulation Best Interest. When a broker-dealer makes a recommendation of a securities transaction or investment strategy to a retail customer, it must act in the customer's best interest at the time of the recommendation and may not place its own interests ahead of the customer's.

Reg BI has four component obligations:

• Disclosure: provide required material facts about the relationship and conflicts before or at the recommendation.
• Care: exercise reasonable diligence, care, and skill in understanding and evaluating the recommendation.
• Conflict of interest: establish, maintain, and enforce written policies and procedures addressing conflicts.
• Compliance: establish, maintain, and enforce policies and procedures reasonably designed to achieve compliance with Reg BI as a whole.

Reg BI and the investment-adviser fiduciary duty are distinct legal standards with different triggers. Reg BI is recommendation-based; it does not create a universal continuous-monitoring obligation for every brokerage account. If a broker-dealer agrees to monitor an account and makes recommendations through that monitoring, Reg BI applies to those recommendations.

For exam prep, do not reduce the distinction to 'best interest versus suitable.' Ask instead: Is this an advisory relationship or a retail brokerage recommendation? What duty is triggered? What conflict exists? What did the firm disclose, mitigate, or eliminate?

Conflicts, compensation, and performance fees

Compensation can create incentives that must be analyzed. AUM fees, hourly fees, fixed fees, wrap fees, commissions, revenue sharing, and soft-dollar arrangements can each create different conflicts. The exam outline expects candidates to recognize the form of compensation, the incentive it creates, and the disclosure or conduct problem that follows.

Performance compensation deserves special attention because current dollar thresholds changed in 2026. SEC Rule 205-3 provides qualified-client conditions relevant to performance-fee contracts. In its April 28, 2026 order, published in the Federal Register on May 1, the SEC adjusted the two dollar tests, effective June 29, 2026:

• Assets-under-management test: at least $1.4 million under management with the adviser immediately after entering the contract.
• Net-worth test: more than $2.7 million immediately before entering the contract.

The net-worth test is applied together with a spouse and uses Rule 205-3's treatment of a primary residence. Rule 205-3 also has other qualification paths and definitions. The 2026 order does not retroactively disqualify a client from a compliant contract entered into before June 29, 2026; however, a new person or entity that becomes a party to that contract on or after the effective date must satisfy the qualification conditions then in effect.

Do not keep using the former $1.1 million and $2.2 million figures as current law after June 29, 2026. At the same time, avoid turning one threshold table into blanket legal advice; a real contract requires review of the complete rule and applicable state law.

A reliable method for ethics scenarios

Ethics questions are easier when you classify facts in a fixed order.

1. Identify the person and capacity

Is the person an IA, IAR, broker-dealer, agent, issuer, or client? Is a dual registrant acting in an advisory or brokerage capacity for this interaction? Definitions and obligations change with capacity.

2. Identify the relationship and authority

Is the relationship ongoing or limited? Does the person have custody, discretion, or trading authority? Written authority, client consent, and the scope of the agreement often determine whether the conduct is authorized. Do not treat custody, discretion, and trading authority as interchangeable.

3. Locate the incentive or conflict

Look for compensation, personal trading, outside business, affiliated products, gifts, loans, political contributions, allocation of opportunities, or an incentive to trade excessively. Ask who benefits and what material fact the client would need to evaluate the advice.

4. Test the communication

Look for omissions, misleading registration claims, performance guarantees, misleading advertising, selective performance presentation, or promises against loss. Communications can be written, oral, electronic, social-media based, or delivered through a website.

5. Choose the protective response

The correct response may require declining the conduct, obtaining authorization, making full and fair disclosure, protecting confidential information, escalating suspected exploitation, following supervisory procedures, or documenting the decision. The exact rule can differ by jurisdiction, so avoid inventing a universal timing, hearing, custody, or brochure rule when the question does not supply the controlling law.

Registration is separate from the exam

Series 65 is an examination, not a license by itself. Passing is normally one prerequisite for IAR registration, but the state regulator determines whether an applicant may register. Other requirements may include Form U4, fees, background review, bonding, and state-specific conditions.

Enrollment depends on the candidate's situation:

• A candidate associated with a firm should work through that firm; the firm generally submits Form U4.
• An unsponsored candidate who is not filing Form U4 can enroll through FINRA's Test Enrollment Services System. No firm sponsor is required merely to sit for Series 65.
• The enrollment window is normally 120 days. NASAA's FAQ says an extension is limited to illness or injury, not additional study time.
• Testing is normally at a Prometric center. Online delivery of NASAA exams is available only for candidates with a qualifying testing accommodation.

In most states, a passing result that has not been used for registration generally expires after two years. A person whose registration terminates also generally has two years to reregister without retesting. State waiver authority and NASAA's Exam Validity Extension Program can change the result for eligible people, so confirm the relevant jurisdiction rather than relying on a universal statement.

Retakes, waivers, and continuing education

For Series 65 failures counted within a two-year period, the normal waiting periods are:

• 30 days after the first failure before the second attempt;
• 30 days after the second failure before the third attempt; and
• 180 days after the third failure before the fourth attempt and after each later failure.

There is no NASAA lifetime cap on attempts if the waiting periods are met. Each attempt requires a new fee and enrollment window, and the wait is specific to the failed exam.

Many states allow an active professional designation to satisfy the Series 65 exam requirement under a waiver provision. NASAA's model-rule list includes CFP, ChFC, MSFS, CFA, PFS, and CIMA. The state regulator decides whether the waiver applies. A CPA license alone is not a PFS designation, and a Series 65 waiver does not waive the remaining registration requirements or automatically waive Series 66.

Passing Series 65 does not itself impose a separate recurring education requirement. However, an IAR may be subject to NASAA's IAR continuing-education program if registered in a jurisdiction that adopted the model rule. FINRA also describes an Exam Validity Extension Program that can extend eligible Series 65 validity for up to five years in participating states if its conditions, including annual CE, are met.

How to study this domain without overclaiming

Start from the official Domain IV outline and convert each bullet into three prompts: Who is regulated? What triggers the rule? What fact changes the outcome? Then practice mixed scenarios so that actor, capacity, authority, compensation, and disclosure are not presented in predictable blocks.

Use this review sequence:

1. Learn IA, IAR, broker-dealer, agent, security, issuer, state, and federal-covered-adviser definitions.
2. Compare registration, notice filing, exemptions, exclusions, and post-registration obligations without reducing the system to one AUM slogan.
3. Apply adviser duties of care and loyalty to scope, conflicts, best execution, and monitoring.
4. Apply Reg BI to retail recommendations using its four obligations.
5. Review compensation, custody, discretion, communications, privacy, cybersecurity, business continuity, and vulnerable-adult scenarios directly from the outline.
6. Use original practice items and explain why each distractor fails. Never rely on recalled live-exam questions.

The purpose of practice is diagnostic. A local bank's question count tells you how much practice inventory exists, not how many questions NASAA administers and not how likely any subtopic is to appear.

Official sources

• NASAA Series 65 Exam Content Outline
• NASAA Series 65 Test Specifications, effective June 12, 2023
• NASAA Series 65 Study Guide
• NASAA Exam FAQs
• NASAA IAR Continuing Education
• NASAA Exam Validity Extension Program
• FINRA Series 65
• FINRA Enrollment and Scheduling
• SEC Commission Interpretation Regarding Standard of Conduct for Investment Advisers
• SEC Regulation Best Interest compliance guide
• Federal Register: 2026 Qualified Client Inflation Adjustment

Bottom line

The defensible Series 65 ethics story is straightforward: Domain IV is 30% and 39 scored questions, not a documented top failure area; the exam requires 92 of 130 scored questions while displaying 140 total; adviser fiduciary duty depends on the agreed relationship; Reg BI is more than suitability; passing is not registration; and the current Rule 205-3 dollar tests are $1.4 million under management or more than $2.7 million net worth, effective June 29, 2026. Build your study plan around those verified facts and the official outline, not pass-rate guesses, salary claims, or invented subtopic counts.