Series 63 vs Series 66: Which State Exam Do You Need?

Take the Series 63 if you'll only be selling securities as a broker-dealer agent. Take the Series 66 if you also want to give investment advice for a fee as an investment adviser representative (IAR), because the 66 covers both registrations in one exam while the 63 covers only the agent side.

Both are state-law exams written by NASAA (the North American Securities Administrators Association) and administered by FINRA, and both are usually taken alongside the Series 7. The difference is scope. Here's how they compare and how to decide.

The specs, side by side

All figures below come from FINRA's and NASAA's official exam pages:

	Series 63	Series 66
Official name	Uniform Securities Agent State Law Exam	Uniform Combined State Law Exam
Scored questions	60 (+5 unscored pretest)	100 (+10 unscored pretest)
Time	75 minutes	150 minutes
Passing score	43 of 60 correct (about 72%)	73 of 100 correct (73%)
Exam fee	$147	$177
Corequisites	None	SIE and Series 7
Qualifies you as	Broker-dealer agent	Broker-dealer agent and IAR

Both exams are closed-book multiple choice, and you get your result on screen the moment you finish. Pretest questions are mixed in and not marked, so treat every question as if it counts.

A couple of details worth noticing. The Series 63 is short: 65 questions in 75 minutes is a little over a minute per question. The Series 66 is twice as long, with 110 questions in 150 minutes (about 82 seconds each), and its passing bar is slightly higher.

What each exam actually tests

This is where the two exams really separate.

The Series 63 is almost pure state law and ethics. Under NASAA's current test specifications (effective June 12, 2023), the weights are:

• Ethical practices and obligations: 25% (15 questions)
• Communication with customers and prospects: 20% (12)
• Regulation of broker-dealer agents: 13% (8)
• Regulation of broker-dealers: 12% (7)
• Remedies and administrative provisions: 11% (7)
• Regulation of securities and issuers: 9% (5)
• Regulation of investment advisers: 5% (3)
• Regulation of investment adviser representatives: 5% (3)

There's no investment math, no portfolio theory, and no product analysis. It's the Uniform Securities Act: who has to register, what's exempt, what the state Administrator can do to you, and which practices are prohibited (selling away, guaranteeing performance, sharing in customer profits and losses, excessive trading, and so on).

The Series 66 includes all of that and then adds an advisory layer. Its weights are:

• Laws, regulations, and guidelines, including unethical business practices: 45% (45 questions)
• Client/customer investment recommendations and strategies: 30% (30)
• Investment vehicle characteristics: 17% (17)
• Economic factors and business information: 8% (8)

The 45% law section covers the same ground as the 63, plus adviser-specific rules: fiduciary duty, custody, performance-based fees, soft dollars, and books and records. The other 55% covers what an adviser needs to know. That means client profiling, modern portfolio theory and CAPM, asset allocation, tax basics, retirement plans, ERISA, estate planning, and return measures like time-weighted versus dollar-weighted returns.

In practice, the 66 is roughly the 63 plus a condensed version of the Series 65. It's a meaningfully bigger study load, but nowhere near the size of the Series 7.

Why the Series 66 requires the Series 7 and the 63 doesn't

FINRA lists the SIE and Series 7 as corequisites for the Series 66. NASAA notes that you can take the 7 and the 66 in either order, but you need both passed before you can apply for state registration.

The Series 63 has no formal corequisite. The exam itself stands alone, but it only qualifies you as a state agent of a broker-dealer. In practice, firms pair it with a FINRA representative exam like the Series 7 so you're qualified to sell the products in the first place. For most new reps, the realistic comparison looks like this:

Path	Exams	Exam fees
Agent only	SIE + Series 7 + Series 63	$100 + $395 + $147 = $642
Agent + IAR (combined)	SIE + Series 7 + Series 66	$100 + $395 + $177 = $672
Agent + IAR (separate)	SIE + Series 7 + Series 63 + Series 65	$642 + $187 = $829

So once you're already doing the SIE and Series 7, getting the 66 instead of the 63 costs you just $30 more in fees and gets you a second registration. That small gap is a big part of the 66's appeal for anyone whose role might involve advisory work.

If you're still sorting out the sequence, our guide on what order to take the FINRA exams lays out the usual paths.

How to decide

Choose the Series 63 if:

• Your role is commission-based brokerage, and you won't charge advisory fees.
• Your firm sponsors you for the Series 7 + 63 combination, which is the standard pairing for brokerage-only roles.
• You want the fastest path to licensing. At 60 scored questions of pure state law, the 63 is a much smaller study lift than the 66.

Choose the Series 66 if:

• You'll give investment advice for a fee, manage wrap or fee-based accounts, or your firm is a dual registrant (broker-dealer plus RIA).
• You want the flexibility to move into an advisory role later without taking another exam.
• You're already comfortable with the Series 7 material. The investment-strategy content on the 66 builds on it.

Consider the Series 65 instead if: you want to be an IAR and don't need broker-dealer registration at all. The 65 has no corequisites and doesn't require a firm sponsor. We compare those two directly in Series 66 vs Series 65.

When in doubt, ask your firm. Most firms decide which state exam you take based on the registrations your role needs, and they're usually the ones paying the fee.

Study tips for each

For the Series 63, the challenge is precision, not volume. Questions hinge on specific wording, like whether someone is an "agent" or not, whether a transaction is exempt, and what the Administrator can do without a hearing. Learn the definitions cold, especially the exclusions (for example, who is not an agent or not an investment adviser). Ethics and communications make up 45% of the exam, so prohibited practices deserve a big share of your time.

For the Series 66, start with the law section, since it's 45% of the exam and overlaps directly with what you'd study for the 63. Then work through the recommendations and strategies section, which is the biggest non-law block at 30%. Tax, retirement plans, and return calculations get less depth on the Series 7, so don't assume you've already covered them. Also note that a 70% raw score fails this exam, because the bar is 73 correct.

For both exams, full-length timed practice matters. The 66 in particular runs for two and a half hours, and pacing a law-heavy exam is a different skill from knowing the rules.

If you fail

The Series 63 has the standard waiting periods: at least 30 days after a first or second failed attempt, and 180 days after a third failure (and each one after that). Those match the FINRA exam rules, so plan your date with some buffer if your firm has a licensing deadline. If you're pairing a state exam with the Series 7, it's worth knowing how hard the Series 7 is before you set your timeline.

The bottom line

The Series 63 makes you a state-registered securities agent, and that's all. The Series 66 does that and registers you as an investment adviser representative, for $30 more and a longer, broader exam. If there's any chance your role will involve fee-based advice, the 66 is usually the better investment of your study time.

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