PRIN: The 11 FCA Principles for Businesses

The High-Level Standards That Underpin All UK Financial Services Regulation

The FCA Principles for Businesses — set out in the PRIN module of the FCA Handbook — are the high-level standards that apply to every authorised firm. There are now 11 Principles in active force following the introduction of Principle 12 (the Consumer Duty) in 2023, with Principle 6 (treating customers fairly) and Principle 7 (communications) continuing to operate alongside. Together, the Principles establish the foundational expectations for firm conduct: integrity, skill and care, prudent management, financial soundness, market conduct, customer treatment, communications, conflicts of interest, customer suitability, customer assets protection, regulatory relations, and (for retail customers) Consumer Duty.

This guide explains how the FCA Principles actually work in practice — what each Principle requires, how they interact, the substantive consequences of breach, and how the Principles are applied across different firm types. It also covers the recruitment dimension — how senior compliance leaders engage with the Principles and how candidates need to demonstrate Principles-aligned thinking during interview.

What’s missing from most online explanations of the Principles is the practical application detail. The text of each Principle is brief; the substantive content is in how the FCA interprets and enforces them. This guide describes what good Principles-aligned compliance looks like, with reference to the substantive enforcement and supervisory practice that gives the Principles their operational meaning.

The 11 Principles in Force

The current Principles are:

1. Principle 1 — Integrity: A firm must conduct its business with integrity
2. Principle 2 — Skill, care and diligence: A firm must conduct its business with due skill, care and diligence
3. Principle 3 — Management and control: A firm must take reasonable care to organise and control its affairs responsibly and effectively, with adequate risk management systems
4. Principle 4 — Financial prudence: A firm must maintain adequate financial resources
5. Principle 5 — Market conduct: A firm must observe proper standards of market conduct
6. Principle 6 — Customers’ interests: A firm must pay due regard to the interests of its customers and treat them fairly
7. Principle 7 — Communications with clients: A firm must pay due regard to the information needs of its clients, and communicate information to them in a way which is clear, fair and not misleading
8. Principle 8 — Conflicts of interest: A firm must manage conflicts of interest fairly, both between itself and its customers and between a customer and another client
9. Principle 9 — Customers: relationships of trust: A firm must take reasonable care to ensure the suitability of its advice and discretionary decisions for any customer who is entitled to rely upon its judgement
10. Principle 10 — Clients’ assets: A firm must arrange adequate protection for clients’ assets when it is responsible for them
11. Principle 11 — Relations with regulators: A firm must deal with its regulators in an open and cooperative way, and must disclose to the FCA appropriately anything relating to the firm of which the FCA would reasonably expect notice
12. Principle 12 — Consumer Duty: A firm must act to deliver good outcomes for retail customers (introduced 2023)

How the Principles Apply

The Principles apply broadly but with important nuances:

To whom they apply

The Principles apply to authorised firms. They generally do not apply directly to individuals — though individual conduct is captured separately by the Conduct Rules in COCON. See our Individual Conduct Rules Guide.

Activities covered

The Principles apply to all activity that engages the FCA’s regulatory perimeter — including regulated activities, ancillary activities, and certain other activities depending on the specific Principle. PRIN 3 sets out the application provisions in detail.

Customer types

Several Principles refer to “customers” — with definitions varying by Principle. Principle 6 applies to all customers; Principle 12 applies specifically to retail customers. Understanding which Principle applies to which customer type is operationally important.

Geographic application

The Principles apply to UK-authorised activity. Cross-border activity engages the Principles where it has a UK regulatory connection.

Principle 1 — Integrity

Integrity is the foundational Principle. Substantively, it requires firms to conduct themselves honestly, transparently, and in good faith. Common Principle 1 breach scenarios include:

• Mis-statements or material omissions in regulatory submissions or customer communications
• Fraudulent or dishonest conduct by the firm
• Deliberate concealment of material matters from customers, counterparties, or regulators
• Material breaches that the firm fails to disclose appropriately

Principle 1 breaches are serious and frequently result in significant enforcement action.

Principle 2 — Skill, Care and Diligence

Skill, care and diligence relates to operational competence. The Principle requires firms to:

• Operate with appropriate professional standards
• Maintain appropriate technical capability
• Apply due care in their activities
• Act with the diligence expected of a competent regulated firm

Common breach scenarios include operational failings that should have been prevented, inadequate due diligence, and material errors arising from process weakness.

Principle 3 — Management and Control

Principle 3 is operationalised substantially through SYSC (see our SYSC Guide). It requires firms to:

• Organise their affairs responsibly
• Have appropriate management arrangements
• Maintain effective risk management systems
• Implement appropriate internal controls

The Principle 3 substantive standard is what enables much of the SMCR framework. See our SMCR Guide and SMF16 Guide.

Principle 4 — Financial Prudence

Financial prudence requires firms to maintain adequate financial resources. The Principle is supplemented by sector-specific prudential frameworks:

• Investment firms — MIFIDPRU and IFPR. See our MIFIDPRU & IFPR Guide
• Banks and building societies — CRR/CRD framework
• Insurance firms — Solvency II framework
• Payments and e-money firms — sector-specific prudential rules
• Internal capital adequacy — see our ICAAP Guide

Financial prudence breaches typically engage both Principle 4 and the relevant Threshold Condition. See our Threshold Conditions Guide.

Principle 5 — Market Conduct

Market conduct requires firms to observe proper standards of market conduct. The Principle covers:

• Compliance with market abuse rules (MAR)
• Best execution
• Order handling
• Trade reporting
• Market manipulation prevention
• Insider information handling

Breaches of Principle 5 typically also engage specific market conduct rules — frequently with parallel enforcement.

Principles 6, 9, 12 — Customer-Facing Standards

Three Principles directly address customer treatment:

Principle 6 — Customers’ interests

The traditional “treating customers fairly” Principle. Continues to apply but the substantive standard for retail customers has been elevated by Principle 12. See our TCF and Consumer Duty Guide.

Principle 9 — Suitability of advice

Where firms provide advice or make discretionary decisions, the firm must take reasonable care to ensure suitability. Principle 9 underpins the COBS suitability rules for investment advice, retirement advice, and similar.

Principle 12 — Consumer Duty

The 2023 Consumer Duty — see our Consumer Duty Pillar Guide, Four Outcomes Guide, and Cross-Cutting Rules Guide for detail. Principle 12 is the highest-level statement of the regime and operates alongside the existing customer-facing Principles.

Principle 7 — Communications

Principle 7 requires that communications are clear, fair and not misleading. The Principle applies to:

• Marketing materials and financial promotions
• Product disclosure documentation
• Ongoing communications with customers
• Sales process communications
• Complaint correspondence

The Consumer Duty’s Consumer Understanding outcome reinforces and elevates Principle 7 for retail customers — see our Four Outcomes Guide.

Principle 8 — Conflicts of Interest

Conflicts management is operationalised through SYSC 10 (see our SYSC Guide). The Principle requires firms to manage conflicts both between themselves and customers, and between different customers. The substantive expectations include identification, management, disclosure where appropriate, and declining to act where conflicts cannot be adequately managed.

Principle 10 — Client Assets

Where firms hold client assets — including client money — the firm must arrange adequate protection. The substantive requirements are operationalised through CASS for investment firms and parallel rules for other sectors. Client assets is one of the most operationally demanding regulatory areas, with specific FCA enforcement focus.

Principle 11 — Relations with Regulators

Principle 11 establishes the substantive expectation around regulatory relations. Firms must:

• Deal openly and cooperatively with the FCA
• Disclose appropriately anything the FCA would reasonably expect notice of
• Respond promptly to FCA requests for information
• Engage substantively with supervisory dialogue
• Self-disclose material breaches and operational issues

Principle 11 breaches — particularly around disclosure failures — frequently result in significant enforcement action. The “appropriate disclosure” standard is broad: material matters that the firm becomes aware of must be disclosed even where there is no specific rule requiring disclosure.

How Breaches of Principles Are Enforced

The FCA enforces Principle breaches through:

Section 206 fines

Financial penalties imposed under section 206 of FSMA. Recent fines for Principle breaches have ranged from low millions to hundreds of millions for major institutional breaches.

Section 205 public censures

Public censure as an alternative or supplement to financial penalties.

Section 55J variation of permission

Variation of the firm’s authorisation to impose specific limitations or requirements addressing the underlying issue.

Section 384 redress orders

Compulsory customer redress where the breach has caused customer harm.

Authorisation suspension or removal

In severe cases, suspension or removal of the firm’s authorisation.

Personal enforcement against SMFs

Where the substantive breach engages an SMF’s accountability under the Duty of Responsibility (section 66B FSMA), individual enforcement action is possible. See our Senior Manager Conduct Rules Guide.

The Principles in Practice — Common Pitfalls

Treating Principles as aspirational. The Principles are operative regulatory rules with enforcement consequences — not aspirational statements.

Inadequate Principle 11 disclosure. Where firms identify material matters but don’t disclose to the FCA appropriately, parallel Principle 11 breaches frequently compound the original issue.

Principle 6/12 confusion. Where firms continue to operate Principle 6/TCF-aligned customer treatment without elevating to Principle 12 standards for retail customers.

Principle 8 weakness. Conflicts management that meets formal SYSC 10 requirements without substantive operational management.

Principle 4 reactive rather than proactive. Capital adequacy assessed at point-in-time without forward-looking assessment of potential stress.

Principle 5 gaps. Particularly for firms that consider themselves not market-facing — Principle 5 can engage even where direct market activity is limited.

Principle 1 vulnerability through omission. Where material matters are technically not disclosed in customer or regulator communications, integrity can be engaged through omission rather than active misstatement.

PRIN and Senior Compliance Recruitment

The Principles framework shapes senior compliance recruitment substantially:

• SMF16 (Compliance Oversight) — owns overall Principles compliance framework
• SMF1 (CEO) — typically allocated overall Principles accountability through prescribed responsibilities
• Heads of Compliance, Risk, Internal Audit — operationalise Principles compliance
• MLRO (SMF17) — owns Principle-engaged AML and financial crime matters
• CRO (SMF4) — owns Principle 3 risk management framework
• CFO (SMF2) — owns Principle 4 financial prudence

For senior compliance leadership specifically, see our SMF16 Guide and CCO Recruitment page.

Further Reading and Authoritative Sources

For the Principles for Businesses, see PRIN in the FCA Handbook. For Principle 12 specifically, see PRIN 2A.

Related Guides: FCA Handbook and Conduct

Part of FD Capital’s series of practical guides for FCA-regulated firms: SYSC — Senior Management Arrangements | SUP — The Supervision Manual | DISP — Dispute Resolution | PERG — Perimeter Guidance | The Four Consumer Duty Outcomes | Cross-Cutting Rules & Principle 12 | TCF and Consumer Duty | Individual Conduct Rules (Tier 1) | Senior Manager Conduct Rules (Tier 2) | SMF16 — Compliance Oversight