Series 63 vs Series 65 vs Series 66
Series 63, Series 65, and Series 66 are easy to confuse because all three are NASAA state-law exams administered by FINRA. The practical question is simpler: are you selling securities, giving investment advice, or doing both on a Series 7 track?
Quick comparison
| Exam | Best fit | Scored questions | Time | Passing mark | Corequisite |
|---|---|---|---|---|---|
| Series 63 | Broker-dealer agents who need state securities law qualification | 60 scored plus 5 unscored | 75 minutes | 43 of 60 correct | None listed by FINRA |
| Series 65 | Investment adviser representatives and advice-focused roles | 130 scored plus 10 unscored | 180 minutes | 92 of 130 correct | None listed by FINRA |
| Series 66 | Series 7-track candidates who need combined agent and adviser coverage | 100 scored plus 10 unscored | 150 minutes | 73 of 100 correct | Series 7 path |
Source checked May 25, 2026 against FINRA Series 63, FINRA Series 65, and FINRA Series 66 pages plus NASAA study guides. Free Exam Prep Hub is independent and unofficial.
Decision guide
Series 63 is the compact state-law exam for broker-dealer agent activity. It is commonly paired with a product exam such as Series 6 or Series 7 when the role involves securities sales rather than paid advice.
Open Series 63 practiceSeries 65 is the longer investment adviser law exam. It is usually the cleaner path when the role is built around advisory fees, portfolio advice, planning, fiduciary duties, and investment adviser representative registration.
Open Series 65 practiceSeries 66 combines state agent and adviser law coverage. It can be efficient for Series 7 candidates, but the Series 7 relationship matters, so it is not the same standalone path as Series 65.
Open Series 66 practiceFree practice path
40 original state-law questions across broker-dealers, agents, ethics, communications, securities, advisers, IARs, and administrator powers.
Start Series 6340 original questions across economics, investment vehicles, client recommendations, adviser law, fiduciary duty, and ethics.
Start Series 6540 original questions for candidates combining state-law, adviser, agent, investment product, and recommendation concepts.
Start Series 66Common mistakes
It is a combined path that assumes a Series 7 context. If you are not on that track, Series 65 may be the more relevant adviser exam.
Series 63 is state agent law. If you plan to provide paid investment advice, compare Series 65 and Series 66 instead.
Use official outlines, original practice, and topic scoring. Pages claiming copied exam questions can be unreliable and risky.