6.3 Purpose and Structure of the FCA Handbook

The FCA Handbook is the consolidated rulebook of the Financial Conduct Authority. It contains every rule, principle, guide and standard made by the FCA under FSMA, and is the operational expression of the regulator's statutory objectives. It is published online at handbook.fca.org.uk and is the day-to-day reference for compliance officers, advisers, and supervisors.

Purpose of the Handbook

The Handbook exists to:

• Translate the FCA's statutory objectives into specific, enforceable requirements
• Provide a single, navigable source of rules and guidance for authorised firms
• Implement UK and international (e.g. EU-derived, post-Brexit assimilated, OECD, Basel) standards
• Set conduct, prudential, disclosure and reporting standards across the financial services sector
• Support the FCA's supervisory and enforcement work by giving clear benchmarks of compliance

Although the Handbook is binding as rules, much of it is also guidance (marked G rather than R), and firms must interpret rules in the context of the principles. The Glossary defines defined terms used throughout.

Structure of the Handbook

The Handbook is organised into layers, each with a different function. Understanding the layer is the first step in finding the right rule.

High-Level Standards

These apply to all authorised firms and set the cultural and governance baseline:

• PRIN — Principles for Businesses (covered in 6.4)
• SYSC — Senior Management Arrangements, Systems and Controls
• SUP — Supervision Manual (notifications, reports, skilled persons)
• TC — Training and Competence
• FIT — Fit and Proper Test for Approved Persons
• APER — Approved Persons Regime (legacy, much superseded by SMCR)
• COCON — Code of Conduct for staff under the SMCR

Business Standards

These are the day-to-day conduct rules:

• COBS — Conduct of Business Sourcebook (investment business; covered in 6.6)
• MCOB — Mortgage Conduct of Business (residential mortgages)
• BCOBS — Banking: Conduct of Business (current accounts, payment services)
• ICOBS — Insurance: Conduct of Business
• CONC — Consumer Credit sourcebook (with BNPL brought into scope from 15 July 2026)
• CASS — Client Assets Sourcebook (covered in 6.5)
• MAR — Market Conduct sourcebook (market abuse)
• PROD — Product Intervention and Product Governance

Prudential Standards

These set capital and liquidity requirements for FCA-regulated firms (PRA-regulated firms follow the PRA Rulebook):

• GENPRU — General Prudential Requirements
• BIPRU — Banks (largely replaced by UK CRR and the Basel 3.1 standards; remaining bits apply to small deposit-takers)
• IFPRU — Investment Firms Prudential Regime (for Class 2 and 3 firms under the Investment Firms Prudential Regime, IFR)
• MIFIDPRU — MiFID Investment Firms Prudential Regime (post-Brexit, UK-IFPRU for many)
• MIPRU — Mortgage and Insurance Intermediaries Prudential Regime (small mortgage and insurance brokers)

Specialist Sourcebooks

Where a sector needs rules that diverge from the general business standards:

Navigating the Handbook

The Handbook is large (more than 10,000 pages), but navigation is systematic. Each section is numbered (e.g. COBS 4.2.1 R = Conduct of Business Sourcebook, chapter 4, section 2, paragraph 1, Rule). The convention:

• R — Rule (binding)
• G — Guidance (not binding, but indicative of how rules apply)
• EU — Material from retained EU law
• TP — Transnational Provision

Cross-references between chapters use the format "see SYSC 4.1.1 R". Defined terms are in the Glossary (e.g. retail client, eligible counterparty, professional client).

How the Handbook Is Updated

The Handbook is updated continuously. The FCA issues Policy Statements following consultations, which make changes by legal instrument (numbered FCA 2026/17 etc.). Each instrument amends specific chapters, and the online Handbook shows a timeline of changes. The handbook notice is published each time a change is made. Major reforms (such as the Consumer Duty, PS22/9) bring significant, multi-chapter changes. The FCA also publishes Perimeter Guidance (PERG) for firms unsure whether an activity is regulated.

Practical Use for Mortgage and Investment Advisers

For CeMAP candidates, the relevant chapters are mainly:

• PRIN (principles, including Consumer Duty)
• MCOB (mortgage conduct)
• COBS (investment advice, suitability, financial promotions)
• CONC (consumer credit, where advice touches on secured or unsecured lending)
• TC (training, competence, CPD)
• SYSC (governance)
• CASS (client money — relevant where advisers hold client funds)

Key Takeaways

• The Handbook translates the FCA's statutory objectives into enforceable rules and guidance
• It is organised into High-Level Standards, Business Standards, Prudential Standards, Specialist Sourcebooks, Listing, Redress, Guides and Glossary
• Paragraphs are numbered (e.g. COBS 4.2.1 R) with suffixes R, G, EU or TP indicating status
• Updates are made by legal instruments published in handbook notices following consultation
• Mortgage and investment advisers primarily use PRIN, MCOB, COBS, CONC, TC, SYSC and CASS