Series 65 Exam · 10 min read 2026 Blueprint Verified

Series 65 Investment Adviser Registration: $100M/$110M SEC vs State AUM Thresholds

Rob Pfleghardt

10-year Price Waterhouse alumnus · Founder of VoraPrep · Former CPA (1987–2024) · with the VoraPrep Editorial Team

Series 65 Investment Adviser Registration: $100M/$110M SEC vs State AUM Thresholds

Key Takeaways

  • The key AUM thresholds are $90M (must switch to state), $100M (may switch to SEC), and $110M (must switch to SEC).
  • Investment Adviser Representatives (IARs) always register at the state level, even if their firm is a large, SEC-registered IA.
  • Federal covered advisers do not register with states, but they must "notice file" and pay fees in states where they have a place of business.
  • Failing to distinguish between the "may register" and "must register" AUM thresholds is one of the most common traps on the exam.

A full 30% of your Series 65 exam is dedicated to Laws, Regulations, and Ethics, with a heavy focus on Investment Adviser (IA) registration. Most candidates memorize the $100 million AUM number but fail to spot the specific facts that trigger the exceptions. The exam doesn't just test if you know the number; it tests if you can apply the buffer zone and de minimis rules under pressure, which is where most points are lost.

Quick answer

An Investment Adviser may register with the SEC at $100 million AUM and must register at $110 million AUM, becoming a federal covered adviser. An SEC-registered adviser whose AUM falls below $90 million must withdraw its federal registration and register with the appropriate state(s). Advisers with less than $100 million AUM register with the state unless a specific exemption applies.

Key facts

  • Official Body: NASAA (North American Securities Administrators Association)
  • Administrator: FINRA
  • Scored Questions: 130
  • Passing Score: 94 of 130 correct (~72.3%)
  • Official Fee (2026): $187 (confirm with FINRA)
  • Recommended Study: 70-100 hours

What Are the SEC vs. State IA Registration Thresholds?

The primary factor determining if an Investment Adviser (IA) registers with the SEC or a state is its Assets Under Management (AUM). This division of labor, established by the Investment Advisers Act of 1940 and refined by subsequent rules, places large, national firms under federal oversight and smaller firms under state jurisdiction.

The exam requires you to know three critical AUM numbers, not just one.

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  1. $110 Million AUM (The "Must Register" Trigger): Once a state-registered IA's AUM reaches $110 million, it must register with the SEC.
  2. $100 Million AUM (The "May Register" Option): A state-registered IA with AUM between $100 million and $110 million has the option to register with the SEC, but is not required to.
  3. $90 Million AUM (The "Must Switch Back" Trigger): If an SEC-registered IA's AUM falls below $90 million, it must withdraw its SEC registration and register with the appropriate state(s).

This $90M-$110M range creates a buffer zone designed to prevent firms from having to switch regulators due to normal market fluctuations. An adviser measures its AUM annually for its Form ADV update to determine if a switch is necessary.

> ⚠️ Exam trap: A question describes a state-registered IA whose AUM grows to $104 million. The tempting wrong answer is "The IA must register with the SEC." The correct answer is that the IA may register with the SEC but can remain state-registered. The mandatory switch doesn't happen until AUM hits $110 million. The exam preys on candidates who only remember the general "$100 million" figure.

Mastering these specific triggers is essential. You can sharpen your skills on these scenarios with VoraPrep's adaptive Series 65 practice questions, which are designed to test these exact judgment calls.

How Do State-Level Rules Like De Minimis Work?

While AUM is the main driver, state registration rules add another layer of complexity. The most frequently tested state-level concept is the de minimis exemption.

Under the Uniform Securities Act, an IA does not have to register in a particular state if two conditions are met:

  1. The IA has no place of business in that state.
  2. During any 12-month period, the IA has fewer than six retail clients who are residents of that state.

"Fewer than six" means five or fewer. On the sixth client, the exemption is lost, and the IA must register in that state (assuming no other exemption applies). This rule is applied on a state-by-state basis.

A critical distinction for the exam is the difference between state registration and federal notice filing.

  • State-Registered IAs must register in every state where they have a place of business or where they exceed the de minimis client threshold.
  • Federal Covered IAs (SEC-registered) do not register with states. Instead, they notice file by sending states a copy of their federal paperwork (Form ADV) and paying a fee. Notice filing is generally required in any state where the federal covered IA has a place of business or a certain number of clients.

And here's a rule that trips up many candidates: Investment Adviser Representatives (IARs)—the actual people giving advice—always register at the state level. Even if an IAR works for a massive, multi-billion-dollar SEC-registered firm, their personal registration is handled by the state securities authority.

The 7-Day Sprint to Master IA Registration

Use this intensive one-week plan to turn IA registration from a weakness into a strength.

Day 1: Master the AUM Buffer Zone

Focus exclusively on the three numbers: $90M, $100M, and $110M. Create a chart or flashcards. Write out the rule for each: "Below $90M = Must switch to state." "Between $100M and $110M = May switch to SEC." "At $110M = Must switch to SEC." Drill this until the "may vs. must" distinction is automatic.

Day 2: Deconstruct the De Minimis Exemption

Memorize the two-part test: (1) no office in the state AND (2) fewer than 6 clients in the state. Understand that this is an exemption from state registration only. It has no bearing on whether an IA must register with the SEC.

Day 3: Apply the Rules with a Worked Example

Walk through a multi-step scenario to see how the rules interact.

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> 💡 Worked example: > > "Momentum Advisory" is an IA firm based in Nevada. > > * Scenario A: Momentum has $80M AUM, all from Nevada residents. > * Decision: State-registered in Nevada. AUM is below the SEC threshold. > > * Scenario B: Momentum's AUM grows to $105M. > Decision: Remains state-registered in Nevada. They now may register with the SEC, but are not required* to until AUM hits $110M. > > * Scenario C: Momentum's AUM hits $112M. > Decision: Must* register with the SEC and withdraw its Nevada registration. > > * Scenario D: Now SEC-registered, Momentum's AUM drops to $98M due to market conditions. > * Decision: Remains SEC-registered. They are still within the buffer zone (above $90M). > > * Scenario E: Momentum's AUM drops further to $88M. > Decision: Must* withdraw its SEC registration and register with the state of Nevada. > > * Scenario F: Momentum is state-registered with $80M AUM. It has its office in Nevada, 4 clients in Utah, and 7 clients in Idaho. > Decision: Must register in Nevada (place of business), does not need to register in Utah (de minimis applies, 4 < 6), but must* register in Idaho (de minimis is exceeded, 7 > 5).

Day 4: Learn the Other Federal Covered Advisers

AUM isn't the only path to SEC registration. An IA must register with the SEC, regardless of AUM, if it provides advice to:

  • A registered investment company (like a mutual fund).
  • A business development company.

Additionally, pension consultants advising employee benefit plans with over $200 million in assets may register with the SEC.

Day 5: Review the "Who Is Not an IA?" Exclusions

The exam will try to trick you with entities that don't need to register at all. Review the key exclusions:

  • L.A.T.E. Professionals: Lawyers, Accountants, Teachers, and Engineers whose advice is solely incidental to their practice and for which they receive no special compensation.
  • Broker-Dealers: If their advice is solely incidental to their business and they receive no special compensation.
  • Banks and bank holding companies.
  • Publishers of bona fide, general circulation newspapers or magazines.

Day 6: Practice with a Focus on Distractors

Now, put it all together. The best way to prepare is with a large bank of 1,800+ practice questions with detailed explanations that mimic the exam's complexity. Focus on questions that combine AUM changes with multi-state clients and potential exemptions. Analyze every wrong answer to understand the logic.

Day 7: Run a Timed Testlet

Take 15-20 practice questions focused only on IA registration and related rules. Time yourself. This builds the mental muscle to quickly identify the relevant rule (AUM, de minimis, exclusion) and apply it correctly under exam pressure. If you get stuck, Vory, your AI tutor, is available 24/7 to break down the reasoning.

What Other Factors Determine IA Registration?

While AUM is the most common determinant, the exam tests several other scenarios that force or allow SEC registration. Understanding these edge cases is key to a passing score.

For example, an adviser operating primarily online (an "internet adviser") may be required to register with the SEC. Advisers to private funds may also fall under SEC jurisdiction depending on the fund's size and structure.

This table summarizes the key differences you must know.

FeatureState-Registered IASEC-Registered (Federal Covered) IA
Primary RegulatorState securities administratorU.S. Securities and Exchange Commission (SEC)
AUM ThresholdGenerally < $100 millionGenerally ≥ $100 million
Switching RulesMust switch to SEC at $110M AUMMust switch to state if AUM drops < $90M
Multi-State ActivityRegisters in each state where it has an office or exceeds de minimisNotice files in states where it has a place of business
IAR RegistrationIARs must register with the stateIARs must still register with the state
Governing LawUniform Securities ActInvestment Advisers Act of 1940

Frequently asked questions

What are the Series 65 SEC vs. state registration thresholds? An Investment Adviser may register with the SEC at $100 million AUM and must do so at $110 million. If an SEC-registered adviser's AUM drops below $90 million, it must switch to state registration. This buffer zone prevents constant regulatory changes from minor market shifts. What is the de minimis exemption for Investment Advisers on the Series 65 exam? The de minimis exemption allows an IA to avoid registering in a state if it has no physical office there and has fewer than six retail clients residing in that state during any 12-month period. It is an exemption from state registration only. How many hours should I study for the Series 65 exam in 2026? Most candidates require 70-100 hours of focused study. Your personal timeline will depend on your background in finance and law. Consistent practice with exam-level questions is more important than total hours spent reading. What happens if an IA's AUM fluctuates around the $100 million threshold? A buffer zone exists. A state-registered IA is not forced to register with the SEC until its AUM reaches $110 million. An SEC-registered IA does not have to switch to state registration unless its AUM falls below $90 million. Do IARs for SEC-registered firms have to register with the state? Yes. This is a critical point. Investment Adviser Representatives (IARs) always register at the state level, regardless of whether their firm (the IA) is state-registered or a large federal covered adviser.
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Series 65 Domain IV: Laws, Regulations, and Guidelines

Under the Uniform Securities Act, a state-registered Investment Adviser that maintains custody of client funds or securities is generally required to maintain a minimum net worth of:

Official resources and references

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About the Author: Rob Pfleghardt

Rob Pfleghardt is the founder of VoraPrep, a comprehensive exam prep platform for the CPA, CMA, EA, CIA, CISA, and CFP exams. A Virginia Tech graduate in Accounting and Finance, Rob began his career at Price Waterhouse, spending a decade in audit and IT consulting. After holding a CPA license for 37 years (1987–2024) and successfully scaling his own enterprise IT consultancy serving the Department of Defense, Rob launched VoraPrep. He now leverages his deep systems architecture background to build the adaptive training technology and curriculum that helps candidates pass their certification exams efficiently.

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