Series 63 vs Series 66: Which State Law Exam Do You Need?
Last updated June 2026. This article answers the specific questions candidates search for when preparing for Series 63 and Series 66 exams.
Series 63 vs Series 66 at a Glance
If you are preparing for the Series 63 or Series 66, you probably have specific questions about what the exam covers, how hard it is, and the best way to study. This article addresses those questions directly.
This section covers series 63 vs series 66 at a glance. For the full exam breakdown, see our complete exam guide library.
Content Differences
This section covers content differences. For the full exam breakdown, see our complete exam guide library.
Which Fits Your Career Path
This section covers which fits your career path. For the full exam breakdown, see our complete exam guide library.
FAQ
FAQ
Yes. The Series 66 includes all Series 63 content. If you pass the Series 66, you do not need the Series 63.
The Series 66 covers more material (both agent and adviser law) but is a single exam. Most candidates find it harder than the Series 63 alone but more efficient than taking both the 63 and 65.
Author profile
Sonia Hoffman
Austin, USAdviser exam writer
Sonia worked in investment adviser operations and licensing support and now writes about state-law exams, adviser rules, and practice strategy for Series 63, 65, and 66 candidates.
Focus
Series 63/65/66
Coverage
Adviser operations · Rule application
Keep reading
Guide
series 63 complete guide
12 min read
Guide
series 66 complete guide
12 min read
Exam Comparison
Series 65 vs Series 66: Which Exam Should You Take?
Compare the Series 65 and Series 66 exams: content, format, career paths, and which one makes sense for your situation. Clear guidance for candidates deciding between the two.
12 min read
Find firms that hire your certification
Browse 400+ banks, broker-dealers, fintechs, and regulators with direct links to their career pages.