Uniform Combined State Law Exam (Series 66) Study Guide
- Questions
- 100
- Time limit
- 2h 30m
- Passing score
- 73%
- Exam fee
- $177
- Governing body
- NASAA
The Uniform Combined State Law Examination (Series 66) is a qualification exam that combines the material of the Series 63 (Uniform Securities Agent State Law) and the Series 65 (Uniform Investment Adviser Law) into a single test. It is designed for candidates who need to register as both a securities agent and an investment adviser representative at the state level.
The Series 66 consists of 100 scored questions and you are given 150 minutes to complete it. That works out to roughly 90 seconds per question, so pacing yourself is a real part of the challenge — not just knowing the material.
The exam is co-developed by FINRA and the North American Securities Administrators Association (NASAA), and it is administered by FINRA. Because it is a state-law exam, its focus is regulatory: the Uniform Securities Act, ethical practices, and fiduciary obligations rather than deep product mechanics.
Here is what you need to know before you sit down at the testing center:
- Number of questions: 100 scored questions.
- Time limit: 150 minutes.
- Passing score: you must answer at least 73 of the 100 scored questions correctly.
- Exam fee: the cost is $177.
A passing score of 73 out of 100 means the exam expects a high degree of mastery — you can only afford to miss 27 questions. Combined with the 150-minute limit, this makes consistent accuracy across every topic area more valuable than deep expertise in a single one.
Note that exams may also contain a small number of unscored, experimental questions used for future test development; these do not count toward your 73-question threshold and are not included in the 100 scored questions above.
Because the Series 66 merges state securities-agent law and investment-adviser law, your study should cover a broad regulatory landscape. The major themes you should be comfortable with include:
Economic Factors and Business Information
Basic economic concepts, financial reporting, and quantitative measures that inform suitable recommendations.
Investment Vehicle Characteristics
The features of equity, debt, pooled investments, derivatives, and insurance-based products — enough to judge suitability, not to trade them.
Client Investment Recommendations and Strategies
Portfolio management styles, risk-return tradeoffs, tax considerations, and the suitability of recommendations for different client profiles.
Laws, Regulations, and Guidelines (including Prohibition on Unethical Business Practices)
This is the heart of a state-law exam: the Uniform Securities Act, registration of agents and advisers, fiduciary duty, and the prohibited and unethical practices that examiners test heavily.
Given only 27 allowable misses, treat the ethics and regulatory sections as non-negotiable — they are the largest and most heavily weighted portion of a combined state-law exam and the area where careless errors cost the most.
Use the exam's own structure to shape your preparation:
Budget your time like the exam does
With 150 minutes for 100 questions, aim for about 90 seconds per question in practice sessions. Flag anything that takes longer, move on, and return to it — leaving time at the end for review is easier when you have not stalled on early questions.
Target the 73-question threshold with margin
Since passing requires 73 correct answers, set a personal practice-exam target above that — consistently scoring in the low-to-mid 80s on realistic mock exams gives you a buffer against test-day nerves and unusually worded items.
Prioritize ethics and regulation
The prohibited-practices and Uniform Securities Act material rewards memorization and repetition. Drill definitions of terms like "security," "agent," "investment adviser," and "investment adviser representative," and the situations that trigger or exempt registration.
Plan the $177 investment once
The exam costs $177, so build in enough preparation that you sit for it once. A short, focused final review of your weakest content area is usually more valuable than re-reading material you already know.
Series 66 flashcards
34 cards on the highest-yield terms and rules. Grading uses spaced repetition and saves in this browser.
Browse all 34 cards
What is the passing score for the Series 66?
73 of the 100 scored questions (a scaled 73%).
What is the exam fee for the Series 66?
$177.
How many scored questions are on the Series 66 exam, and how long do you have?
100 scored questions in 150 minutes.
What two registrations does the Series 66 combine, and what co-requisite is required?
It combines the state law portions for Investment Adviser Representative (IAR) and Agent registration. The Series 7 is a co-requisite to qualify — the 66 is not a standalone license.
How many questions are on the Series 66 exam?
100 scored questions (there may be additional unscored pretest questions on the exam form, but only the 100 scored questions count).
How much time do you have to complete the Series 66 exam?
150 minutes.
What is the passing score for the Series 66 exam?
You must answer at least 73 of the 100 scored questions correctly (73%).
What is the fee to take the Series 66 exam?
$177.
What does the Series 66 exam combine?
It is the Uniform Combined State Law Exam, combining the content of the Series 63 (state securities law) and Series 65 (investment adviser law) into a single exam.
Does the Series 66 test general securities product knowledge like the Series 65?
No — because the Series 7 is typically required alongside the Series 66, the exam omits the product/analysis content covered on the Series 65 and focuses on state law, ethics, and regulatory topics.
What professional roles does passing the Series 66 qualify you for?
It qualifies a candidate to register as both an Investment Adviser Representative (IAR) and a securities agent, when combined with a Series 7.
What are the four major topic areas typically tested on the Series 66?
Economic factors and business information; investment vehicle characteristics; client recommendations and strategies; and laws, regulations, guidelines, and ethical practices.
What does NASAA stand for and why does it matter for the Series 66?
North American Securities Administrators Association — it develops the content outline and model rules (like the Uniform Securities Act) tested on the Series 66.
What is the Uniform Securities Act?
A model state securities law that most states have adopted in some form; it underlies much of the state-law content tested on the Series 66.
What is a 'federal covered adviser'?
An investment adviser regulated by the SEC (typically due to AUM above the state/federal threshold) rather than by individual state securities regulators, though it may still owe notice filings to states.
What is the general standard of conduct for investment adviser representatives under state law?
A fiduciary duty — the obligation to act in the client's best interest, including duties of loyalty and care.
How should you approach studying for the Series 66 given its 150-minute/100-question format?
Pace yourself at roughly 1.5 minutes per question on average, flag uncertain items, and budget time to review flagged questions before submitting.
What is the primary regulatory focus of the Series 66 exam?
The Series 66 combines the Series 63, 65, and 66 into one uniform state law exam. It tests knowledge of state securities laws, fiduciary duties, investment adviser regulations, and basic securities products and services.
Define an 'accredited investor' under the federal definition.
An accredited investor is an individual with annual income exceeding a specific threshold or net worth above a specific amount (excluding primary residence), or certain institutional investors. They can invest in private placements and other restricted securities with fewer disclosures.
What is a 'wrap fee' arrangement?
A wrap fee is a single, all-inclusive fee charged by an investment adviser that covers advisory services, transaction costs, and other administrative costs. Advisers must disclose wrap fee conflicts of interest, including whether trading may be excessive.
When must an investment adviser register at the state level versus federal level?
Advisers managing less than a state-specific threshold (often $25-30M in assets under management) must register with the state. Advisers managing at or above the federal threshold must register with the SEC, not the state.
What is a 'breakpoint' in mutual fund sales?
A breakpoint is a declining sales charge based on purchase amount—larger purchases receive lower percentage charges. Registered persons must disclose breakpoints, offer them, and should recommend them to eligible customers to reduce costs.
What are 'pink sheets' and how do they relate to small-cap stocks?
Pink sheets (now OTC Markets) are quotation services for thinly traded, unlisted securities. They typically have minimal regulatory oversight, wider bid-ask spreads, and higher risk than exchange-listed stocks.
Define 'market manipulation' in the context of securities laws.
Market manipulation is conduct that distorts fair market prices, such as pump-and-dump schemes, wash trades, spoofing, or disseminating false information to affect security prices. All forms are prohibited under federal and state securities laws.
What is the 'suitability standard' and how does it differ from fiduciary duty?
Suitability requires recommendations to be reasonable for a client's financial situation. Fiduciary duty is a higher standard requiring the adviser to place client interests first in all respects. All investment advisers are fiduciaries; not all broker-dealers are.
When is a Form ADV Part 1 amendment required?
Form ADV Part 1 amendments must be filed within 30 days of material changes (changes to SEC or state registration status). Part 2 (brochure) amendments require delivery to clients annually or within 30 days of material changes.
What is a 'penny stock' and what disclosure rules apply?
A penny stock is typically an unlisted security priced under $5, though definitions vary by regulation. Sales require written disclosure of risks, current bid-ask quotations, compensation, and a suitability statement before or with confirmation.
Define 'churning' in an investment account.
Churning is excessive trading in a discretionary account that is unsuitable and designed to generate commissions for the registered person rather than benefit the client. It violates the antifraud provisions and can result in disciplinary action.
What is an 'offering circular' and when is it required?
An offering circular is a disclosure document for certain securities (like Regulation A+ offerings or limited offerings). It contains financial, operational, and risk information required before or with the sale of the security.
What is a 'variable annuity' and how is it regulated?
A variable annuity is an insurance product with returns tied to underlying investment options. It is both a security (requiring 1035 exchanges to be handled carefully) and an insurance product, regulated by both the SEC and state insurance commissioners.
What is the 'financial suitability' requirement for options trading?
Before approving an options account, a firm must verify the customer's financial situation, investment experience, and objectives. Customers must sign a suitability agreement, and the firm must reassess suitability within a set period.
Define 'insider trading' and explain the disclose-or-abstain rule.
Insider trading is trading securities while in possession of material nonpublic information. The disclose-or-abstain rule requires those with such information to either disclose it to the market or refrain from trading until it becomes public.
What is a 'blind portfolio' and how does it benefit clients?
A blind portfolio is one managed without the adviser knowing client identities (the adviser receives trade instructions without knowing whose account benefits). It reduces the incentive for conflicts of interest and limits preferential treatment.
When must a registered representative disclose conflicts of interest?
Conflicts of interest must be disclosed proactively and in writing before the transaction occurs. Common conflicts include compensation for in-house products, dual registration, private placements, or transactions with related parties.
Series 66 glossary
The Uniform Combined State Law Exam (Series 66) is a securities qualification exam administered by FINRA that assesses competency to act as an investment adviser representative and securities agent. It contains 100 scored questions, allows 150 minutes, requires at least 73 correct to pass, and costs $177.
29 terms the Series 66 tests, defined in plain English.
- Accredited Investor
- A natural person or entity meeting specific income and net worth thresholds, allowing them to participate in certain private securities offerings exempt from standard registration requirements. On the Series 66, understanding accredited investor status is critical because it determines which securities regulations apply to client offerings and affects suitability recommendations.
- Administrator
- The state official or agency responsible for administering and enforcing state securities laws under the Uniform Securities Act, including registration, investigations, and enforcement actions.
- Agent (Registered Representative)
- An individual who represents a broker-dealer or issuer in effecting or attempting to effect securities transactions. Agents must be registered in each state where they solicit or transact business.
- Blue Sky Laws
- A general term for state securities laws designed to protect investors from fraudulent sales practices and worthless securities offerings. Each state administers its own blue sky laws, often modeled on the Uniform Securities Act.
- Breakeven Point
- The price at which an options contract generates neither profit nor loss if exercised; calculated as the strike price plus the premium paid for a call option, or the strike price minus the premium paid for a put option. This is essential for Series 66 candidates evaluating options strategies and their risk-reward profiles for clients.
- Broker-Dealer
- A person or firm engaged in the business of effecting securities transactions for the accounts of others (broker) or for its own account (dealer). Broker-dealers must register with both state and federal regulators.
- Churning
- Excessive trading in a client account for the primary purpose of generating commissions rather than serving the client's investment objectives; a violation of fiduciary duty. Series 66 exam-takers must recognize churning as prohibited conduct and understand how regulatory bodies detect and sanction this practice.
- Closed-End Fund
- An investment company that issues a fixed number of shares traded on an exchange like a stock, with prices determined by supply and demand rather than net asset value. Unlike open-end mutual funds, closed-end funds trade at premiums or discounts to NAV, a distinction Series 66 candidates must understand for proper client guidance.
- Conflict of Interest
- A situation where a financial professional's personal interests, financial incentives, or relationships may compromise their duty to act in a client's best interest; must be disclosed in writing. The Series 66 heavily emphasizes identifying, disclosing, and managing conflicts of interest as a core fiduciary responsibility.
- Custodian
- A third-party financial institution that holds client securities and cash in safekeeping and processes settlements, distinct from the adviser who manages investment decisions. For Series 66, understanding the custodian's role is critical to client asset protection, compliance, and proper segregation of duties.
- Diversification
- An investment strategy that spreads capital across multiple securities, asset classes, sectors, or geographies to reduce unsystematic risk; a cornerstone of prudent portfolio management. The Series 66 stresses diversification as a key suitability requirement and a defensive measure against concentration risk.
- Dollar-Cost Averaging
- An investment technique in which a fixed dollar amount is invested at regular intervals regardless of price, reducing the average cost per share over time and mitigating timing risk. Series 66 candidates should know this method as a client-friendly way to reduce emotion-driven investment decisions and illustrate discipline.
- Exempt Security
- A security that is not required to be registered at the state level because of its inherent characteristics, such as U.S. government bonds or municipal bonds. Exemption from registration does not exempt the security from state anti-fraud provisions.
- Exempt Transaction
- A securities transaction that is excused from state registration requirements because of the nature of the transaction itself, such as an isolated non-issuer transaction or a transaction with an institutional investor. The security involved may still otherwise require registration in other contexts.
- Fiduciary Duty
- A legal obligation requiring investment advisers to act in the best interest of their clients, placing client interests above their own. This is a central theme of the Series 66 exam's ethics and legal obligations content.
- Front-Running
- A prohibited practice where a trader executes trades on personal account ahead of client orders to benefit from anticipated price movement; a violation of fiduciary duty and securities law. The Series 66 requires candidates to identify front-running as unethical and understand its consequences.
- Hedge
- An investment position or strategy designed to offset or reduce the risk of another position, typically using derivatives, short sales, or uncorrelated assets. Series 66 test-takers must understand hedging as a legitimate risk-management tool distinct from speculative trading.
- In-the-Money (ITM)
- An options contract with intrinsic value; for a call option, when the stock price exceeds the strike price, or for a put option, when the stock price falls below the strike price. This terminology is fundamental for Series 66 candidates discussing options strategies and their moneyness at any given time.
- Investment Adviser
- A person or firm who receives compensation for advising others about securities investments as part of a regular business. Under the Uniform Securities Act, most investment advisers must register at the state level unless they qualify for federal covered status.
- Investment Adviser Representative (IAR)
- An individual who works for an investment adviser and gives advice, manages accounts, or solicits advisory clients. IARs must generally register in the states where they do business.
- Liquidity Risk
- The risk that an investment cannot be quickly sold at or near market price due to low trading volume or market disruption; affects an investor's ability to access cash. Series 66 candidates must assess liquidity risk when recommending illiquid securities and matching investments to client time horizons.
- Market Maker
- A broker-dealer who commits capital and stands ready to buy and sell specific securities at quoted bid-ask spreads, providing liquidity to the market. Understanding market makers' role and potential conflicts (e.g., principal trading) is essential for Series 66 candidates advising clients on trading costs and execution.
- Net Asset Value (NAV)
- The per-share value of a mutual fund calculated by dividing total fund assets minus liabilities by the number of outstanding shares; updated daily at market close. Series 66 candidates must know NAV calculations for valuing mutual fund positions and understanding fund pricing mechanics.
- North American Securities Administrators Association (NASAA)
- An organization of state securities regulators that develops model rules and guidance used by states to regulate securities offerings, broker-dealers, and investment advisers, and that helps develop content for exams like the Series 66.
- Out-of-the-Money (OTM)
- An options contract with no intrinsic value; for a call option, when the stock price is below the strike price, or for a put option, when the stock price is above the strike price. This concept is vital for Series 66 test-takers analyzing option probability and risk in various trading scenarios.
- Soft Dollar Arrangements
- Agreements where an adviser uses client commissions to pay for research, technology, or other services that benefit the advisory business rather than paying from the adviser's own funds. Series 66 candidates must recognize soft dollar arrangements as potential conflicts of interest requiring disclosure.
- Suitability
- The regulatory requirement that securities recommendations be appropriate for a client based on their financial situation, investment objectives, risk tolerance, and time horizon. Suitability is a foundational concept for the Series 66 exam, as violations are among the most commonly cited regulatory deficiencies.
- Uniform Securities Act (USA)
- The model state securities law that most states have adopted, forming the basis for state ('blue sky') securities regulation tested on the Series 66. It governs registration of securities, broker-dealers, agents, and investment advisers within a state.
- Volatility
- The degree to which an asset's price fluctuates over time, typically measured by standard deviation; higher volatility indicates greater price swings and uncertainty. Series 66 candidates must assess volatility when matching investments to client risk tolerance and evaluating portfolio stability.
Frequently asked questions
How many questions are on the Series 66 exam, and how much time do I get?
The Series 66 (Uniform Combined State Law Examination) contains 100 scored questions, and you are given 150 minutes to complete it. That works out to an average of about 90 seconds per question, so plan to move steadily and flag tougher items to revisit rather than getting stuck on any single question.
What score do I need to pass the Series 66?
You must answer at least 73 of the 100 scored questions correctly to pass the Series 66, which is a passing score of 73%. Because there is no partial credit and the margin between passing and failing is only a handful of questions, it's wise to target well above 73% on your practice exams to build a safety buffer before test day.
How much does it cost to take the Series 66?
The Series 66 exam fee is $177. Keep in mind this is the exam registration cost itself and does not include any prep courses, study materials, or practice-exam subscriptions you may choose to purchase separately.
How should I pace myself during the 150-minute Series 66 exam?
With 100 scored questions and 150 minutes on the clock, you have roughly 90 seconds per question on average. A practical strategy is to answer the questions you know quickly, mark anything uncertain, and reserve the final block of time to return to flagged items and review — this prevents easy points from being lost to time pressure late in the exam.
Official sources
Primary documents used to verify the exam details shown on this page.
- Series 66 Exam OverviewNASAAfinra.org
- NASAA Exams – Series 63, 65 and 66NASAAnasaa.org
- FINRA Continuing Education RequirementsFINRAfinra.org
- FINRA Qualification Exams OverviewFINRAfinra.org
- NASAA Industry Resources – Exams (Series 63/65/66)NASAAnasaa.org
- Series 66 – Uniform Combined State Law ExaminationFINRAfinra.org
Last verified against the NASAA content outline: