Series 27 Official Resources: FINRA Outline and Financial Rules
Find FINRA’s Series 27 outline, net-capital and customer-protection rules, notification guidance, and a practical reading-to-practice sequence.
Start with the outline and a study guide
The FINRA Series 27 exam page identifies the exam and its five functions. Download the official content outline and map each task to a lesson in your current Series 27 study guide. The outline defines scope; it is not a textbook with worked explanations.
FINRA’s outline says candidates are responsible for applicable rule changes. Check current rule text, interpretations and effective dates alongside your course materials, particularly when an older explanation conflicts with a newer rule.
Official rules for the calculation-heavy areas
On small screens, swipe wide tables sideways to see every column.
| Source | What to locate | How to use it in study |
|---|---|---|
| SEC Rule 15c3-1 and FINRA interpretations | Capital methods, adjustments, haircuts, paragraph (d) debt–equity and paragraph (e) withdrawals | Build a calculation, state assumptions, then vary the funding or withdrawal facts |
| SEC Rule 15c3-3 and FINRA interpretations | Customer and PAB reserves, eligible items, computation schedules, possession or control | Separate formula classification, target balance, deposit amount and securities-control duties |
| SEC Rule 17a-11 and FINRA interpretations | Minimum deficiencies, warning events, books-and-records failures and reporting deadlines | Write the trigger and deadline separately; correction does not automatically eliminate notice |
| FINRA Rule 4120 | FINRA capital notifications and business curtailment | Compare its tests with SEC requirements instead of assuming one threshold serves both |
| FINRA Rule 4210 | Margin requirements by account, security and transaction | Work equity, maintenance and collateral examples using the applicable requirements |
| FINRA financial and operational rule interpretations | Reporting, recordkeeping, securities counts and related rules | Follow the specific rule references listed under each official outline task |
| SIPC member filing forms | Assessment forms and filing instructions | Distinguish SIPC reporting from net-capital and customer-reserve computations |
A recurring term can refer to different tests. In particular, regulatory debt–equity is not aggregate indebtedness divided by net capital. Use the cheat sheet for the distinction and worked scenarios to apply it.
Turn a source into a learning exercise
- Find the outline task and its rule reference.
- Read a guide’s explanation and work its example before looking at the solution.
- Check the official provision for conditions, exceptions, definitions and timing.
- Practise the topic in Finance Prep and review missed, guessed and slow answers.
- Later, solve a changed example without notes or answer choices. Use a mixed mock after broad coverage.
If the rule text is unfamiliar, return to a fuller lesson rather than relying on a cheat-sheet formula alone. Keep a note of the source and review date for rules that change.
Official source
Official FINRA links
Use these official vendor links to verify the current exam page, handbook, syllabus, booking rules, fees, retake policy, and candidate-account instructions before relying on any third-party practice page.
Mastery Exam Prep is independent companion practice: original practice questions and explanations, not official questions, copied live-exam content, or exam dumps.
Registration and exam-day checks
Use the Enroll, Schedule, and On the Day of Your Exam links on FINRA’s exam page . Confirm sponsorship and eligibility with your firm, then check identification, appointment and retake policies through FINRA’s current instructions.
The official outline describes permitted exam materials and the calculator provided by the testing administrator. Practise calculations using comparable basic functions; your personal notes and this cheat sheet are study aids, not exam-room references.
What these resources can establish
Official sources establish scope, rules and candidate requirements. A study guide teaches the material; practice reveals gaps in applying it. Neither a third-party question set nor a high practice score establishes a verified probability of passing.
Mastery Exam Prep and Finance Prep are independent from FINRA. The supplemental pages are preparation aids, and our questions are original practice questions rather than official or recalled exam content.
Source links and the study sequence reviewed September 14, 2026. Continue with the Series 27 study plan or open Finance Prep topic practice .