Series 63 vs Series 66 (2026): Differences & Which First

If you're entering the securities industry, you'll almost certainly face a state law exam — and for most candidates the choice comes down to the Series 63 (Uniform Securities Agent State Law Examination) or the Series 66 (Uniform Combined State Law Examination). They overlap in subject matter but differ meaningfully in scope, length, and cost. Here's a grounded comparison to help you decide which to take, and in what order.

What each exam is for

According to NASAA, the Series 63 is the state law test for broker-dealer representatives. It focuses on state-level securities regulation — NASAA's study guide identifies the governing framework as the Uniform Securities Act of 1956, as amended by NASAA. In short: if your job is selling securities as an agent of a broker-dealer, the Series 63 is the exam built for that role.

The Series 66 is the Uniform Combined State Law Examination. As its name indicates, it is designed to combine state law coverage for candidates who need to register in more than one capacity — reflecting both agent-side and adviser-side state law requirements — rather than covering only the broker-dealer agent role the Series 63 addresses. Which one you need is ultimately dictated by the registration your role requires, so confirm with your firm's registration or compliance team before enrolling.

The concrete differences

Question count and structure

The Series 63 is the shorter exam by a wide margin. According to NASAA's study guide, the examination consists of 65 multiple-choice questions, of which five are included for pre-testing purposes; FINRA's exam outline confirms that 60 questions are scored. The Series 66, according to FINRA, contains 100 questions — a substantially longer test.

Time limits

FINRA gives Series 63 candidates 75 minutes — 1 hour and 15 minutes — to complete the exam. Series 66 candidates are allowed 150 minutes, which is exactly double the Series 63's time limit. Per-question, the pacing is broadly similar; the difference is endurance, not speed.

Fees

The Series 63 exam fee is $147, per FINRA. The Series 66 fee is $177 — a $30 difference. Fees alone shouldn't drive the decision, but if your firm isn't covering exam costs, the shorter exam is also the cheaper one.

Passing standard

For the Series 63, FINRA states that candidates must correctly answer at least 43 of the 60 scored questions to pass. FINRA publishes its own passing standard for the Series 66, so check the current figure on the official exam page rather than relying on secondhand numbers.

Logistics — identical for both state law exams

NASAA announced that as of April 1, 2022, it no longer offers the Series 63, Series 65, and Series 66 qualification exams through online testing. Per FINRA's enrollment guidance, these exams can only be taken at a test center, with online delivery available only for candidates requiring a testing accommodation. Once you enroll, NASAA's study guide notes that FINRA opens a 120-day testing window within which you must schedule and take your examination, and FINRA states the scheduling window opens the day after enrollment. So whichever exam you choose, plan on an in-person appointment within roughly four months of enrolling.

Which should you take first — or do you need both?

This isn't really a matter of preference: the exams map to different registration capacities, so your intended role decides for you. The Series 63 satisfies the state law requirement for the broker-dealer agent role specifically. The Series 66's combined design exists so that candidates who need broader state registration coverage don't have to sit for multiple separate state law exams. Because the Series 66 is a combined exam, taking both is generally redundant rather than complementary — you take the one that matches the registrations your position requires, and your firm will tell you which that is.

Verdict by candidate situation

• You're joining a broker-dealer purely in a sales/agent capacity: the Series 63 is the purpose-built exam — 60 scored questions in 75 minutes for $147 is the lighter lift, and it covers exactly the state law ground your registration requires.
• Your role spans both brokerage and advisory functions: the combined scope of the Series 66 exists for this situation. You'll face a longer exam — 100 questions over 150 minutes for $177 — but a single sitting instead of multiple state law exams.
• You're unsure what your role will require: don't guess. The wrong exam costs you the fee and weeks inside a 120-day testing window. Ask your firm which registration capacity you're being hired into, then enroll for the matching exam.
• You're cost- or time-constrained and your role permits either path: the Series 63 is shorter and cheaper on every grounded measure — 35 fewer scored-plus-pretest questions, half the seat time, and $30 less in fees.

Whichever direction you go, test yourself under realistic conditions before exam day. You can start with our free Series 63 practice exam to see how the state law material feels at real exam pacing.