Best Series 66 prep courses
NASAA Uniform Combined State Law Examination
The combined exam covering both agent state-law and investment-adviser content, qualifying you in the two capacities the Series 63 and Series 65 cover separately. It is typically paired with the Series 7 by advisors who need both broker-dealer and advisory registrations.
Series 66 at a glance
| Administered by | NASAA |
|---|---|
| Exam fee | $177 |
| Questions | 100 |
| Time limit | 150 minutes |
| Passing score | 73 of 100 scored questions |
| Sponsorship | No firm sponsorship required |
Rankings
- #13.0/ 4
Kaplan
The establishment pick, with the question bank other providers' students end up buying anyway
- #22.9/ 4
Knopman Marks
White-glove exam prep from the firm that trains Wall Street's new hires
- #32.9/ 4
Achievable
Budget-priced, reading-first exam prep on a genuinely modern platform
- #42.9/ 4
Securities Training Corporation (STC)
The 50-year incumbent whose practice finals candidates treat as the readiness benchmark
- #52.8/ 4
Pass Perfect
The 30-year question-bank shop, rebuilt with Solomon Exam Prep under one roof
- #62.7/ 4
Securities Institute of America
The textbook house: published question counts, a simple guarantee, and self-study basics at fair prices
How to choose for the Series 66
The 66 rides with the Series 7, so the practical questions are where you bought your 7 prep, how long your access lasts across both exams, and how much law drilling you get per dollar (T2, R2). Guarantees are worth a look here too: several providers bundle them differently on the 66 than you'd expect from their 7 packages.
The rankings above order providers by overall CHART score; the picks below map them to the situations we actually see for this exam.
Lowest entry price
Securities Institute of America
The cheapest 66 we track, with a published 3,000-plus-question bank behind it.
Pairing with a Series 7 course
The strongest bank plus a natural 7-and-66 pipeline under one roof.
Guarantee plus realism
Securities Training Corporation (STC)
Its mid tier bundles Green Light readiness exams and the refund guarantee, with a realism reputation that carries from the 65.
Long runway for the combo
A year of access covers a spread-out 7-and-66 campaign that shorter clocks punish.
Series 66 FAQs
The Series 66 covers both the agent (63) and adviser (65) capacities in one sitting, but it requires a valid Series 7 at the time of registration. If you'll never register with a broker-dealer, the standalone Series 65 avoids that dependency; if you're on the Series 7 track anyway, the 66 saves an exam.
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About the author
Brennan KolarSenior Financial Analyst · Founder & Lead Researcher
Brennan Kolar is a Senior Financial Analyst and the founder of the Atlas Index family of research sites, including Atlas CPA Index and Atlas Securities Index. He built the CHART methodology to make exam-prep comparisons transparent: every score traces to a published rubric, and every factual claim carries a source.
Full bio & editorial standards →