Series 65 vs Series 66: Which Investment Adviser Exam in 2026?

Series 65 vs Series 66: Which One Should You Take?

The Series 65 and Series 66 are both NASAA exams administered through FINRA that qualify you to work as an Investment Adviser Representative (IAR). But they are designed for different career paths, have different prerequisites, and lead to different types of registrations.

Choose the wrong one and you could waste months of study time -- or discover you are not even eligible to sit for the exam you picked.

This guide gives you a clear, decision-ready comparison so you can pick the right exam for your situation and start preparing today.

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Quick Comparison Table

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What Is the Series 65?

The Series 65 (Uniform Investment Adviser Law Examination) is a standalone NASAA exam that qualifies you to register as an Investment Adviser Representative (IAR). It is the most direct path to legally providing investment advice for compensation.

Who Takes the Series 65?

• Independent Registered Investment Advisers (RIAs)
• Fee-only financial planners
• Professionals who want to give investment advice without selling securities products
• Career changers entering financial planning
• Anyone without a firm sponsor or Series 7 license

Key Series 65 Details

• No prerequisites -- you can register and take it today without any other exams or firm sponsorship
• No Series 7 or SIE required -- it is completely standalone
• Qualifies you immediately as an IAR upon state registration
• Can be waived if you hold certain professional designations (CFP, CFA, CIC, ChFC, or PFS)

Series 65 Content Areas

The Series 65 covers a broad range of material because it is designed as a standalone exam. You need to demonstrate competency in economics, investment products, portfolio management, and the full body of securities law that applies to investment advisers.

What the Series 65 Does NOT Give You

The Series 65 does not authorize you to sell securities. It only qualifies you to provide investment advice for compensation. If you want to both sell securities (stocks, bonds, mutual funds) and provide investment advice, you need additional licenses -- typically the Series 7 for sales authority and the Series 66 (or Series 63) for state registration.

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What Is the Series 66?

The Series 66 (Uniform Combined State Law Examination) is a combined exam that essentially merges the Series 63 (state securities law for agents) and the Series 65 (investment adviser law) into a single test. Passing it qualifies you as both a securities agent and an Investment Adviser Representative.

Who Takes the Series 66?

• Registered representatives at broker-dealers who also provide advisory services
• Dual-registered professionals (broker + adviser)
• Anyone who already has or is pursuing a Series 7 license
• Financial professionals at firms that offer both brokerage and advisory services

Key Series 66 Details

• Requires Series 7 + SIE as corequisites -- you cannot use the Series 66 without an active Series 7
• Requires firm sponsorship because the Series 7 requires firm sponsorship
• Combines Series 63 + Series 65 into a single, more efficient exam
• Invalid without active Series 7 -- if your Series 7 lapses, your Series 66 becomes ineffective

Series 66 Content Areas

Notice the stark difference in content weighting compared to the Series 65. The Series 66 heavily emphasizes laws, regulations, and guidelines (65%) because the Series 7 already covers the economics, investment vehicles, and client recommendation material. The Series 66 focuses on what the Series 7 does not: state securities regulation, fiduciary obligations, and advisory-specific business practices.

What the Series 66 Does NOT Do

The Series 66 does not work standalone. Without an active Series 7, the Series 66 registration is invalid. You cannot take the Series 66 alone and start working as an IAR. If you want a standalone advisory license, the Series 65 is your only option.

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Side-by-Side Comparison: The Details That Matter

Exam Format Comparison

Prerequisites and Eligibility

Registration Authority Comparison

Cost Comparison (Total Path)

Note: Many candidates on the Series 65 path do not need the SIE at all. The SIE is only required if you plan to also take a FINRA representative-level exam like the Series 7. For a standalone IAR license, the Series 65 alone is sufficient.

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Decision Guide: Which Exam Should You Take?

Answer These Three Questions

Question 1: Do you have (or plan to get) a Series 7 license?

• Yes -- Take the Series 66. It is more efficient than taking the Series 63 and Series 65 separately, and it gives you dual registration (agent + IAR) in a single exam.
• No -- Take the Series 65. It is the only path to IAR registration without a Series 7.

Question 2: Do you have firm sponsorship from a broker-dealer?

• Yes -- You can pursue either path. If your firm wants you to sell securities and provide advice, go Series 7 + Series 66. If your firm only needs you to provide advice, Series 65 may suffice.
• No -- Take the Series 65. The Series 66 requires firm sponsorship (because the Series 7 requires it). The Series 65 is the only option you can pursue independently.

Question 3: What type of career do you want?

• Fee-only financial planner / independent RIA -- Series 65
• Broker-dealer representative who also gives advice -- Series 7 + Series 66
• Dual-registered (both broker and adviser) -- Series 7 + Series 66
• Not sure yet -- Series 65 (keeps your options open, no sponsorship required)

Decision Flowchart

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Career Paths Comparison

Path 1: Independent RIA (Series 65)

The Series 65 is your license. Independent RIAs are fiduciaries who provide investment advice for a fee (hourly, flat, or percentage of assets under management). They do not sell securities products or earn commissions on trades.

Typical career trajectory:

1. Pass the Series 65 (no sponsorship needed)
2. Register with your state as an IAR
3. Join or start an RIA firm
4. Build a client base through financial planning and investment management
5. Consider pursuing CFP certification to enhance credibility (and waive the Series 65 requirement for future IARs)

Average income: Independent RIAs with established practices typically earn $80,000-$200,000+, with top performers exceeding $300,000. Income scales with assets under management.

Path 2: Dual-Registered Representative (Series 7 + Series 66)

The Series 66 rounds out your licenses. Dual-registered reps can operate under both a broker-dealer registration (for commission-based securities sales) and an RIA registration (for fee-based advisory services). This is the most versatile registration type.

Typical career trajectory:

1. Get hired by a broker-dealer (firm sponsorship)
2. Pass the SIE (if not already completed)
3. Pass the Series 7
4. Pass the Series 66
5. Register with your state as both a securities agent and IAR
6. Offer both commission-based and fee-based services

Average income: Dual-registered representatives at wirehouses and independent broker-dealers typically earn $60,000-$150,000 in early years, with experienced reps earning $150,000-$500,000+.

Path 3: Career Changer (Series 65 First, Then Decide)

If you are entering the financial services industry and are not sure which direction to go, the Series 65 is the safest starting point because:

• No sponsorship required -- you can take it on your own timeline
• No prerequisite exams -- start studying today
• Immediate IAR qualification -- you can begin providing advice upon state registration
• Does not lock you into a broker-dealer relationship
• If you later join a broker-dealer, you can add the Series 7 and either keep your Series 65 or replace it with the Series 66

Professional Designations and Waivers

If you hold one of these designations, the Series 65 exam requirement is waived:

Important: These waivers apply only to the Series 65. The Series 66 has no designation-based waivers because it requires the Series 7, which has its own requirements. If you have a CFP and want to work at a broker-dealer offering both brokerage and advisory services, you still need the Series 7 + Series 66 combination -- your CFP does not waive any of those requirements.

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Study Comparison

Study Time Estimates

The Series 66 typically requires less study time if you have already passed the Series 7, because the Series 7 covers overlapping investment and economic material. The Series 66 primarily tests state law and fiduciary concepts that are not covered elsewhere.

If you are taking the Series 65 from scratch with no prior securities knowledge, plan for the full 80-120 hours.

Study Strategy by Exam

Series 65 Study Priorities:

1. Laws, Regulations, and Guidelines (30%) -- highest priority, biggest differentiator
2. Client Investment Recommendations and Strategies (30%) -- application-heavy
3. Investment Vehicle Characteristics (25%) -- broad product knowledge
4. Economic Factors (15%) -- foundational, but less heavily tested

Series 66 Study Priorities:

1. Laws, Regulations, and Guidelines (65%) -- this IS the exam for practical purposes
2. Client/Customer Investment Recommendations (25%) -- suitability and fiduciary scenarios
3. Investment Vehicles (5%) -- minimal, mostly covered by Series 7
4. Economic Factors (5%) -- minimal, mostly covered by Series 7

What If You Already Passed the Series 7?

If you have an active Series 7, the Series 66 is almost always the better choice over the Series 65 because:

• Shorter exam (100 questions vs. 130)
• Less study time (laws-focused vs. comprehensive)
• Dual registration (agent + IAR vs. IAR only)
• Lower cost ($177 vs. $187, and you avoid duplicating material from Series 7)

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Pass Rate Comparison

Both exams have similar estimated pass rates in the 65-70% range for first-time candidates. NASAA does not publish official pass rate data for either exam. The commonly cited estimates come from training providers, industry surveys, and self-reported candidate data.

For both exams, the Laws section is the primary reason candidates fail. On the Series 66, this is especially critical because Laws accounts for 65% of the entire exam.

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Key Takeaways

1. Series 65 is standalone; Series 66 requires Series 7. If you do not have firm sponsorship or a Series 7, the Series 65 is your only path to IAR registration.
2. Series 66 = Series 63 + Series 65 combined. It is the more efficient path if you already have (or are getting) a Series 7, because one exam covers both registrations.
3. Series 65 has no prerequisites. You can register and take it today without any other exams, sponsorship, or professional designations.
4. Series 66 is invalid without Series 7. Your Series 66 registration lapses if your Series 7 becomes inactive.
5. The Laws section dominates both exams -- 30% of the Series 65 and 65% of the Series 66. This is where exams are won or lost on both paths.
6. Designation holders get a Series 65 waiver. CFP, CFA, ChFC, CIC, and PFS holders do not need to take the Series 65 at all. No waivers exist for the Series 66.
7. Career path determines the exam. Fee-only advisers and independent RIAs need the Series 65. Dual-registered broker-dealer reps need the Series 7 + Series 66 combination.

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