What it means
Its formal name is the Uniform Combined State Law Examination. It exists because a large number of advisers today are dually registered, taking commission on some business and fees on other business, and previously had to sit two separate exams to do so.
The format sits between the two exams it replaces: 100 scored questions in 150 minutes, with 73 correct answers required to pass, plus a small number of unscored trial questions. Because the Series 7 covers products in depth, the Series 66 leaves out much of the product analysis found in the Series 65.
That makes it shorter to prepare for, provided the product knowledge is genuinely fresh. The critical condition is the Series 7 requirement.
A Series 66 pass does not qualify anybody on its own, so a candidate who passes it but never completes the Series 7 cannot register as an adviser representative on the strength of it. The Series 65, by contrast, stands alone and needs no companion exam.
That makes the choice between the two routes reasonably clear in practice. Anyone heading for a broker-dealer role who also wants to give fee-based advice takes the Series 7 and the Series 66, while anyone who will only ever charge fees, such as a planner at an independent advisory firm, takes the Series 65 on its own.
For a firm, the appeal is efficiency. One exam instead of two saves study time, exam fees and the awkward gap where a new joiner is licensed for part of their role but not all of it.
It also removes a duplicate block of state law study that candidates find repetitive. The content is heavily weighted towards laws, regulations and ethics, alongside client suitability and investment recommendations.
Candidates who have just finished the Series 7 often find the shift from product mechanics to legal principle to be the hardest part of the preparation. Practice questions that turn on a single defined term are the usual stumbling block.
In practice
Real-world examples.
Example
A graduate joining a hybrid firm that runs both a brokerage and an advisory arm takes the Securities Industry Essentials exam, then the Series 7, then the Series 66. That sequence lets her take commission-based orders and charge advisory fees under one licensing programme.
Example
A broker with fifteen years of transactional business decides to move most clients onto an annual fee. He already holds the Series 7 and Series 63, so his compliance team has him sit the Series 66 rather than the Series 65.
Example
A compliance officer reviewing registrations finds a new joiner who passed the Series 66 at a previous employer but never completed the Series 7. The registration cannot proceed until the product exam is passed, and the start date moves back by two months.
Think of it
“Series 66 is combined state law and adviser exam-two in one.
Case study
Seen in the real world.
Thornbury Wealth Partners is an invented firm used purely for illustration. It ran a brokerage business and a separate advisory business, and new joiners historically took the Series 7, then the Series 63, then the Series 65, spread across roughly six months of training.
A new head of training rebuilt the schedule around the Series 7 followed by the Series 66, cutting one exam from the sequence and shortening the licensing period to about four months. Candidates reported that studying state law and adviser regulation together made more sense than covering the same legal territory twice.
The one problem the illustrative firm hit was ordering. Two candidates who passed the Series 66 before the Series 7 sat in limbo for weeks, unable to register despite having passed the harder-looking of their two remaining hurdles.
Thornbury rewrote the training calendar so the product exam comes first for everyone, with the combined state law exam booked exactly three weeks behind it. In this illustrative account the change saved about two months of licensing time per intake and removed most of the scheduling arguments with the compliance team.
Watch out
Common mistakes.
- Sitting the Series 66 without a plan to complete the Series 7, which leaves the pass unusable for registration.
- Assuming the Series 66 is simply the Series 63 and the Series 65 stapled together, when it deliberately omits product content already tested by the Series 7.
- Choosing it by default when the person will never work at a broker-dealer, in which case the Series 65 alone is the appropriate route.
Questions
People also ask.
Which is better, the Series 66 or the Series 65?
Neither is better in the abstract: the Series 66 suits dually registered people who hold the Series 7, and the Series 65 suits fee-only advisers.
Can the Series 66 be taken before the Series 7?
Yes, the exams can be taken in either order, but registration cannot be completed until both are passed.
Does the Series 66 replace state registration?
No, it satisfies the exam requirement, while the actual registration is still filed state by state through your firm.
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