The Series 66 Exam is an essential licensing exam for individuals who wish to act as investment advisers or broker-dealers. It has no prerequisites, but completing the Series 63 and Series 7 exams is a corequisite.
The Series 66 exam requires a 120-day window to schedule. Having quality third-party study materials and practice tests is a must.
The Series 66 exam is one of the more challenging exams for financial services professionals to pass. It requires extensive knowledge of investment recommendations, state regulations, and ethics. The Series 66 exam is not to be taken lightly and it is recommended that candidates take the Securities Industry Essentials (SIE) exam as well before trying to pass the Series 66.
Using the right study materials can make the difference between passing and failing. Make sure that any materials you use are up-to-date and cover all the topics you need to know for the exam. If possible, find a study guide that also provides digital flashcards and additional practice questions. It is also helpful to take handwritten notes as you read your study material, as studies show that this improves memory and retention.
Finally, it is important for candidates to build stamina with a minimum of three timed full-length practice exams. Additionally, it is a good idea to focus on concepts over calculations. Oftentimes, the math calculation questions on the exam are more straightforward than many candidates expect and simply recognizing the correct equation or formula is enough to pass the question.
Prepare for the Series 66 – Uniform Combined State Law Exam exam with our free practice test modules. Each quiz covers key topics to help you pass on your first try.
The Series 66 exam costs $177 to register, which is typically covered by the sponsoring firm if you are Form U4 registered or by you as an independent. You can enroll and pay for the exam through FINRA’s Web CRD system or by filing Form U10 with FINRA if you are not employed with a FINRA member firm.
The test covers state securities regulations and investment advisory practices, which qualifies you to work as both a broker-dealer securities agent and an investment adviser representative. It consists of 100 multiple-choice questions, and you have 150 minutes to complete it. The passing score is 73%.
The material for this exam is fairly comprehensive and covers a wide range of topics. To make studying easier, STC offers a series of exam prep packages to fit your learning style. Each package contains a study guide with PDFs, videos, and topic quizzes. The courses also come with a free 120-day access period, which you can extend if necessary. Our packages are available online and on mobile devices.
While the Series 66 exam does not have as many questions as the Series 7 exam, it is still considered a difficult test. It covers more advanced topics than Series 63 and requires more study hours. Many candidates experience burnout from the extra studying required to prepare for Series 66.
The most difficult questions on the Series 66 exam often focus on investment recommendations and regulations. These include calculating the amount of money a client will need to invest to meet their goals, using investment vehicles such as UITs and mutual funds, and explaining investment fees. Other tough questions on the exam involve complex financial formulas and concepts, such as the Rule of 72 or the Sharpe ratio.
These questions require more in-depth analysis and knowledge of complicated tax laws. Series 66 candidates also have to consider client suitability issues, including age and risk tolerance. In addition, the Series 66 exam includes questions on investment vehicles, financial profiles, savings plans, and portfolio management and analysis. The final exam is computer-based and is administered at an authorized Prometric testing center. Candidates are not allowed to bring any reference materials into the testing room but are provided with a basic calculator and scratch paper.
The Series 66 exam consists of 110 questions, but only 100 are scored. The remaining 10 are experimental pretest questions that do not affect your final score. Candidates are given 150 minutes (2.5 hours) to complete the test. Our 2026 practice tests accurately simulate this format to prepare you for exam day.
The Series 66 is considered challenging because it heavily tests nuanced legal and ethical principles rather than product mechanics. It combines content from the Series 63 and Series 65, requiring a deep understanding of state laws and fiduciary duties. With a disciplined 2026 study plan and extensive practice, passing is highly achievable.
To pass on your first attempt, focus on understanding the concepts behind the Uniform Securities Act, not just memorizing rules. Consistently take practice exams to identify weak areas in topics like prohibited practices or registration requirements. A dedicated study schedule of 60-80 hours is recommended for 2026 candidates to ensure comprehensive mastery.
As of early 2026, the fee to take the Series 66 exam, which is administered by FINRA on behalf of NASAA, is $177. This cost is paid directly to FINRA when your sponsoring firm opens your exam enrollment window. Remember to budget for this fee in addition to any third-party study materials.
Practice Test Geeks provides a comprehensive and FREE Series 66 practice test online. Our questions are developed by industry experts to precisely mirror the actual exam's difficulty, content, and question format for 2026. This is an invaluable tool to assess your readiness, pinpoint knowledge gaps, and build confidence before taking the official exam.