Preparing for the Series 66 exam can feel like a full-time job, and it seems like every prep company out there has the answer—you just have to buy their course. So who’s telling the truth? With your future in security riding on the results (no pressure), finding a course that fits your needs is just as important as the time you spend reviewing outlines and practice questions.
In this article, I’ll walk you through the best Series 66 exam prep courses available today, whether you’re looking for personalized coaching, on-demand video lessons, or a simple study schedule that actually works.
After reviewing these programs in detail and weighing factors like content quality, support, and usability, I’ll help you figure out which course makes the most sense for your learning style, pace, and budget, to help you focus less on the search and more on nailing that exam!
Top 9 Series 66 Prep Courses
- Best Overall: Securities Institute of America
- Best Live Classes: Securities Training Corporation
- Best Price: Achievable
- Best for Newbies: Kaplan
- Best Bonus Features: ExamFX
- Best for Instructor Support: Knopman Marks
- Best for Adaptive Practice Tools: Pass Perfect
- Best for Visual Learners on a Budget: PassMasters
- Best for Casual, Video-Based Review: Study.com
Series 66 Review Course Comparison
| Features |  |  |  |  |  |
|---|---|---|---|---|---|
| Price | $124.99-$199 | $159-$348 | $199 | $149-$299 | $325 |
| Discounts | No Discounts | Save 15% | Save 10% | No Discounts | Save 20% |
| Access | 6 Months | 6 Months | 12 Months | 5 Months | 6 Months |
| Guarantees |  | |  | | |
| Live Classes | | | | | |
| Refund Policy | No | 30 Days | Yes | 30 Days | 30 Days |
| Get Started | Learn More | Learn More | Learn More | Learn More | Learn More |
1. Securities Institute of America: Best Overall
SIA honestly surprised me. It offers a money-back pass guarantee and an AI-powered study buddy without charging an arm and a leg (only Achievable comes close on price). With more than two decades under its belt and a solid 90% student success rate, it’s clear they know what they’re doing, and that trust can make it easier to study the materials with confidence.
I’d recommend it to almost anyone, but especially to those who want a balanced course that doesn’t cost too much. The mobile-friendly setup makes it super easy to sneak in study time wherever (on walks, in the car, sitting in a waiting room).
One of my favorite SIA features is the AI tool, TotalGenius!, which features a cute little Albert Einstein head as its icon photo. While many providers claim to offer responsive support, SIA actually provides that, giving you access to a Chatbot-style AI assistant trained specifically on securities material.
I’m picky about prep tools, but this one impressed me. Not only could I run through practice questions with it, but I also got instant feedback and clear, detailed explanations. And if something didn’t make sense, I could ask follow-up questions until it did. For anyone preparing for the Series 66, that kind of interactive support could make a massive difference.
“Yes, I used them for my 7 & 66. I liked how the videos follow the books. I passed both.”
u/Putrid_Green3581
Key Features:
- Course Format: Self-paced, available anytime
- TotalGenius! AI Assistant: Get real-time tutoring support right on the page
- Custom Exams: Choose from 15 options to focus your study sessions, with unlimited attempts
- Practice Questions: 3,000+ questions to build confidence
- Video Lessons: Over 8 hours of content spread across 9 in-depth videos
- Device-Friendly: Study easily across desktop, tablet, or phone
- GreenLight Guarantee™: Follow the program and get your money back if you don’t pass
Securities Institute of America Discount Codes
No Discounts on Series 66 exam prep packages from the Securities Institute of America, including innovative, AI-driven study tools at a surprisingly affordable price.
Pros:
- Built-in AI assistant gives you instant answers anytime
- One of the most affordable options, with one package tying Achievable for price
- Customizable practice exams with 15 flexible formats
- One of the few Series 66 courses offering a full money-back guarantee
- Access to thousands of practice questions that mirror the actual exam
Cons:
- No live instruction or direct access to industry experts for real-time support
Check out my full review of Securities Institute of America to see if it’s right for you.
Bottom Line: Why Securities Institute of America?
If you want a balanced prep course to help you pass the Series 66 exam, I’d recommend the Securities Institute of America. Their innovative study-centric technology, 15 ways to customize your unlimited practice tests, and in-depth video lectures make for a helpful, engaging study solution that I believe could help most students succeed. While they lack live classes and support leans on the lighter side, for self-paced resources, SIA truly stands out.
Securities Institute of America
2. Securities Training Corporation: Best Live Classes
STC has been in the industry for a long time—the number of students counts well into the seven-figure range, and their 95% pass rate for first-time takers kind of speaks for itself. But what I really enjoyed was how much they prioritize student-teacher interaction. Between the virtual classes, regular Q&A sessions, and their pass guarantee, it feels like they’re fully invested in helping you succeed. I think every prep provider should extend some sort of live instruction, so STC gets major points in my book.
If you learn best by interacting with instructors and fellow students, STC really nails it. The instructors aren’t just knowledgeable—they explain difficult concepts with clear examples and relatable analogies that actually stick. With multiple class times available, fitting sessions into a hectic schedule should never be a problem for busier students like me. Plus, their practice materials feel just like the real exam, which gave me extra confidence heading in. Overall, it’s a great choice for anyone who prefers learning with a little more guidance and support.
One Redditor elaborates, answering another’s question about whether STC’s practice exams are similar to the real thing:
“Passed 66 with STC in July. It was very comparable.”
STC is a wonderful fit if you want professional guidance, structure, and live support built into your prep provider, especially if self-paced videos just don’t work for your learning style.
Key Features:
- Course Format: Live and On-Demand Classes
- Practice Tools: 11 Final Exams, Eight Progress Exams, and Two Green Light exams
- Live Content: 16 Hours of Live Online Classes, Plus Weekly Live Q&A Streams
- Video Lessons: Over Six Hours of On-Demand Video Lectures
- Student Support: Email or Call the Instructor Hotline for Assistance
- Money-Back Pass Guarantee: Offers a Full Refund for Exam Failure
Securities Training Corporation Discount Codes
Save 15% on Series 66 prep materials from the Securities Training Corporation, including live online classes, a help hotline to connect with instructors, and full refund if you don’t pass the exam (if you follow the T&C).
Pros:
- One of the rare Series 66 prep courses that include a money-back pass guarantee
- Instructor hotline provides quick, personalized help with tough questions
- Live virtual classes utilize practical, real-world examples to clarify key concepts
- Weekly Q&A sessions offer regular support and opportunities to deepen understanding
- Practice exams closely mimic the actual Series 66 test in format and difficulty
Cons:
- Higher cost compared to other Series 66 prep options
- Refunds aren’t available once course access has begun
Bottom Line: Why Securities Training Corporation?
If you want a Series 66 prep course that includes live instruction, friendly support, and a guarantee to pass that’ll help calm exam-day nerves, STC is a fantastic option. While it’s pricier than some alternatives, there’s serious value offered—interactive classes, an instructor hotline, and weekly Q&A sessions. For those who find it hard to stay motivated with self-paced study, STC provides the most classroom-like experience in an online format.
Securities Training Corporation
3. Achievable: Best Price
I really enjoyed Achievable. It’s a budget-friendly, tech-forward Series 66 prep course rooted in cognitive science. It’s also a student favorite. With a reported 95% pass rate, tens of millions of practice questions answered, and more than 2 million study hours logged by users, this course clearly resonates with self-driven learners looking to study smart and pass with flying colors.
In testing the course, I found Achievable’s greatest strength to be how downright simple it is. Each section tells you exactly how long it’ll take to complete, making it easier to fit lessons into a packed schedule. The content is broken into bite-sized chunks, and the language feels far more accessible than a traditional textbook, which is ideal for exam takers who don’t want to slog through dense material.
In fact, in one Reddit thread, multiple users outline the value of the textbook, though suggest supplementing with Kaplan’s question bank:
“I think you would retain more of the information if you use Achievable. A good combo would be Achievable plus the Kaplan qbank.”
While you won’t find live instruction or fun video content, Achievable makes up for it with smart pacing, adaptive quizzes, an intuitive interface, and even continuing education. If you prefer modern, no-frills studying at an unbeatable price point, Achievable is well worth considering.
Key Features:
- Course Format: On-Demand, Self-Paced Delivery
- Practice Tools: 1,200+ Practice Questions and 26 Full-Length Tests
- Written Materials: Digital Prep Textbook Written for Real People
- Video Lessons: Over 43 Bonus Video Lectures to View
- Student Support: Contact Customer Service via Phone, Email, and Text
Achievable Discount Codes
Save 10% on Achievable’s easy-to-read digital textbook, visually-driven video lessons, and textable support team for your Series 66 studies.
Pros:
- Among the most budget-friendly Series 66 prep courses, on par with SIA
- Mobile-friendly, simple lessons for easy studying anywhere
- Clear, approachable text materials broken down into manageable sections
- Short video explainers for to learn without feeling overwhelmed
- Text-based support ideal for students who prefer not to jump on calls
Cons:
- Lacks some depth compared to other courses
- Offers a smaller question bank than providers like SIA and STC
Bottom Line: Why Achievable?
If you’re looking for a well-loved, truly easy way to study for the Series 66—especially if you’re watching your budget—Achievable is wonderful. It’s designed with today’s busy securities license candidates in mind, so I really appreciated how easy it was to use on my phone and the choice to access help through text messages (yes, introverts—no phone calls!) While it might not cover every detail some students need, thousands of people find that Achievable hits the right balance of simplicity and support.
Achievable
4. Kaplan: Best for Newbies
Kaplan is one of the founding fathers of online test preparation, and their Series 66 course reflects that dominance as one of the most comprehensive packages out there. The course features video lessons to the tune of 21+ hours, at least five hours more than other top providers like SIA, STC, and Achievable. You can join these videos live with instructor interaction or watch them on demand for more flexibility.
That said, if you’re more drawn to a quicker, more efficient study experience, Kaplan’s extensive materials might feel a bit overwhelming. For those who want to move faster, Achievable might be better for you.
Kaplan is thorough, but crosses over into the information overload category, in my opinion. There’s a lot to digest.
On the upside, Kaplan’s range of live class options—with multiple time slots and formats—made it easier to fit studying into a busy schedule. Their InstructorLink™ feature is also great, consistently providing helpful responses within 24 hours. Their team genuinely cares about helping students succeed.
“The Kaplan test bank is so much harder than the actual test. If you’re getting around 80% on Kaplan you should be fine. Kaplan is so many more tricks and specific answers where one small word changes everything the actual test has none of that. I think Kaplan leaves you more than prepared.”
u/non-anon-1579
Key Features:
- Course Format: Live and On-Demand Courses
- Practice Exams: One Each of the Midterm, Practice, and Mastery Exam
- SecuritiesPro™ QBank: Includes Thousands of High-Quality Practice Questions
- Student Support: Direct Instructor Access Through InstructorLink™
- Live Content: Over 21 Hours of Live Online Lectures With Expert Teachers
- Recordings Available as On-Demand Lessons
Kaplan Discount Codes
on Kaplan’s Series 66 study materials, which include live classes, exam-quality practice questions and exams, and the largest video library of any of the top providers.
Pros:
- Direct access to instructors for personalized Q&A support
- Highest number of lecture hours on the list, ideal for live learners
- Bonus tools include pro tips, progress tracking tools, and frequent content updates
- Practice questions closely reflect the actual Series 66 exam format/key concepts
- Flexible scheduling for live classes suits busy students
Cons:
- No money-back pass promise, unlike some more affordable options
- Limited emphasis on mobile-friendly features and modern technology
- Fewer realistic simulated exams compared to other providers
Bottom Line: Why Choose Kaplan?
Kaplan is rigid, highly structured, and offers the highest number of live class hours out of any of the top competitors for Series 66 prep. Some students will read that and shudder in horror, but I know many of you value that level of accountability to stay on track and organized in the thick of something that can feel pretty chaotic and overwhelming. Kaplan doesn’t have a pass guarantee, and I don’t love the small number of practice exams, but if you want confidence and construction, look no further than Kaplan.
Kaplan
5. ExamFX: Best Bonus Features
If you want a prep course loaded with different types of practice tests and plenty of supplemental study tools, ExamFX could be a good fit. With over 15 video lesson hours and 6 hours of livestreamed lectures, there’s no shortage of audiovisual content—ideal for learners who absorb material better through sight and sound. I also found their support to be responsive and helpful, offering custom instructor assistance via call or message, usually within a day.
Although ExamFX isn’t necessarily unique, I appreciated the variety of resources and the flexibility to switch between various exam formats to keep things fresh on the mind. For students who get bored with repetition or need variety to stay engaged, ExamFX provides enough diversity to make studying feel less like a second job.
Here’s an example of what their webinar schedule looks like for August 2025.
Key Features:
- Course Format: Live Classes and On-Demand Videos
- Live Content: 6 Hours with Post-Class Q&A Sessions
- Video Lectures: Over 15 Hours of On-Demand Lectures
- Practice Tools: Four Full-Length Final Exams, checkpoint tests, a benchmark final, and more
- Customizable Exam Generator: Unlimited Personalized Attempts
- Student Support: Access Instructors Through Phone Calls or Virtual Messages
ExamFX Discount Codes
Save 20% on Series 66 packages through ExamFX, including high-touch instructor support, valuable bonus tools, and engaging live online classes.
Save Up to 20% on ExamFX Securities Review Courses
Pros:
- Valuable bonus tools help you switch up your attention for a dopamine boost
- Instructor support includes guaranteed responses within 24 hours
- Variety of exam formats for practice (checkpoint exams, benchmark final, standard exams, etc.)
- Unlimited practice exams through a customizable exam generator
Cons:
- Doesn’t include a guarantee to pass, where many competitors do
- Lacks a standout feature or unique benefit
- Limited live classes (about twice a month), scheduled only on weekday mornings
Bottom Line: Why ExamFX?
ExamFX might not have a sparkly feature that demands attention, but it’s a dependable option with a healthy number of materials. Their approach works well for students who can’t focus on long, boring textbooks for hours at a time, improving engagement by incorporating a variety of tools. While their support isn’t the most extensive, it’s timely and responsive, helping you stay on track. If you need better student support, you might want to go with STC or Kaplan.
ExamFX
6. Knopman Marks: Best for Instructor Support
Knopman Marks Series 66 includes great instructor support. Each course includes live sessions, access to/check-ins with instructors, and a personalized calendar that adapts based on your performance. While the price is on the higher end, the depth of support and structure may be worth it if you’re aiming for full immersion.
I appreciated the energy of the live sessions, and the instructors really did a great job. They were patient and compassionate, even when I pretended to be hopelessly lost (for the sake of research, of course). However, this course is lower on the list due to the price not really matching the value, in my opinion. If KM appeals to you, I’d opt for STC and Kaplan instead; they both offer live courses and provide additional bonus materials, all within a similar price range.
Key Features:
- Course Format: Live + On-Demand Hybrid
- Live Online Classes with hands-on instructor interaction
- Custom Study Calendar based on performance data
- Benchmark Exams that track your progress against national averages
- Detailed Course Books and Digital Flashcards included
- Student Support includes email, instructor Q&A, and progress tracking
Pros:
- Live, high-touch instruction with coaching built in
- Thorough course materials with excellent explanations
- High levels of support through live interaction and solid customer service
Cons:
- Pricier than most self-study options
- More structure than necessary for independent learners
- It’s not for everyone, especially those who want to move fast
Bottom Line
Knopman Marks is best for learners who want support every step of the way—from personalized coaching to progress monitoring. If you’re someone who prefers to be held accountable or needs structure to stay motivated, it’s a smart investment.
Knopman Marks
7. Pass Perfect: Best for Adaptive Practice Tools
Pass Perfect has an “adaptive” learning engine, which adjusts questions and content based on your performance. Rather than slogging through endless question banks, you’re given targeted practice based on where you’re actually struggling.
The course also offers live sessions and instructor-led reviews, but its real strength lies in the flexibility of its study tools. You can break lessons into smaller modules, filter practice questions by topic, and even simulate different test environments.
“Passperfect is fine if you put the time and effort in.”
u/Nate100001
Key Features:
- Course Format: Hybrid (Live + Self-Paced Options)
- Adaptive Learning Engine that adjusts based on your performance
- Weekly Live Webinars for real-time coaching
- Analytics Dashboard to track weak areas
- Study Manual, Videos, and Flashcards included
- Student Support via phone, email, and live chat
Pros:
- Adaptive system helps focus on weak spots
- Weekly webinars give structure without being overbearing
Cons:
- Fewer full-length exams than some competitors
- Interface feels a bit outdated compared to Achievable or SIA
- Highly mixed reviews
Bottom Line
Pass Perfect is ideal for students who like to learn efficiently, with smart tools that eliminate busywork. The adaptive system is especially helpful for retakers or anyone who wants to work smarter—not just harder.
Pass Perfect
8. PassMasters: Best for Visual Learners on a Budget
PassMasters has carved out a niche for students who want clear, no-fluff instruction, especially visual learners who prefer direct, streamlined content. I personally enjoyed their “sketch-note” videos and animated explainers, and would recommend them for those who don’t like traditional classrooms.
There’s also no overengineering, no AI, no long-winded textbook. Just sharp videos, concise notes, and practice questions that cut to the chase. While it lacks live instruction, the clarity and affordability make it a popular choice for solo learners.
PassMasters also has free practice exams on their website, so you can try before you buy (and get in some practice time while you do so). Overall, I found PassMasters to have some value, but I don’t feel it’d be comprehensive enough for the average learner.
Key Features:
- Course Format: Fully On-Demand
- Sketch-Note Videos that simplify complex topics visually
- Short-Form Lesson Summaries instead of bulky textbooks
- Exam-Style Practice Questions with rationales
- Cross-Device Compatibility for easy mobile studying
- Instructor Support via messaging portal
Pros:
- Engaging visual content, great for focused learners
- Affordable pricing with lifetime access
Cons:
- No live instruction or real-time support
- Less content depth than Kaplan or Knopman
- Some may consider it *too* streamlined
Bottom Line
PassMasters is best for students who want a visually clear, no-nonsense prep course. If you’re on a budget, tired of long textbooks, or just want everything explained in plain English, this course delivers—without distractions.
PassMasters
9. Study.com: Best for Casual, Video-Based Review
Study.com’s Series 66 course is great for students who want flexibility, variety, and digestible content in one place. With hundreds of bite-sized video lessons, built-in quizzes, and clear topic breakdowns, it’s especially useful for those who learn best through repetition and prefer studying in short bursts.
While it’s not a full-scale prep course in the traditional sense (no live classes or pass guarantees), it works well as a supplement—or even a primary resource if you’re already comfortable with test-taking. I did think the materials were sound, and appreciate how Study.com’s format lets you jump between topics easily. This makes it a good fit for brushing up on weak areas or reinforcing what you’ve learned elsewhere. However, I don’t think it’s a good fit if you want something truly comprehensive.
Key Features:
- Course Format: Fully On-Demand
- Hundreds of Short Video Lessons across key Series 66 topics
- Embedded Quizzes after each lesson to test retention
- Cross-Device Access with mobile optimization
- Self-Paced Learning with progress tracking
Pros:
- Massive library of short, digestible video lessons
- Built-in quizzes help reinforce learning in real time
Cons:
- Not designed as a full-fledged exam simulator
- No pass guarantee or live instructor access
- May not be deep enough for first-time learners needing structure
- Not as reliable of a brand as SIA, STC, or Kaplan
Bottom Line
Study.com works best as a flexible, video-driven tool for brushing up on Series 66 topics at your own pace. If you prefer on-the-go learning and don’t want to commit to a rigid structure, this course offers simplicity and consistency, perfect for casual review or as a secondary resource.
Study.com
Other Courses Reviewed
- Agent Broker Training Center
- Bank Training Center
- Greico Financial Career Training Institute
- Varsity Tutors (tutoring only)
- WebCE
My Final Thoughts
There are plenty of Series 66 prep courses out there, and I get that it makes choosing harder, not easier. However, I hope this guide helped you narrow it down, at the very least.
As a quick refresher, the Securities Institute of America is an excellent pick for just about anyone, with a surprisingly low price tag and features like AI study assistants and a pass guarantee. Securities Training Corporation is the pick for live classes that cover both knowledge and top test-taking tips. Achievable is the budget-friendly pick, point blank. Kaplan is a smart choice for beginners who need extra coverage of key concepts, and finally, ExamFX is great if you struggle to focus and value switching your attention regularly.
Whichever prep package you purchase, I’m rooting for your success! You’ve got this.
FAQs
No—Series 66 combines the Series 63 and 65, so you won’t need to take the Series 63 separately.
It’s possible, but unlikely—most students find prep courses essential due to the exam’s breadth and complexity.
Yes—ExamFX and Study.com offer varied content formats and bite-sized lessons to help maintain engagement.
Achievable is ideal—it offers support via text and email, with no need for live calls or instructor chats. Introverts rejoice!
Most students study for 60–100 hours over several weeks, but the right course can make your prep much more efficient.
