How Client Fund Segregation Protects Your Money with UK Brokers

When you deposit money with an investment platform or online broker in the UK, one of the most important safeguards protecting it is client fund segregation. Yet many retail investors don't understand what this means, how it works, or why it matters—especially after reading a broker's homepage promise of "segregated accounts."

This article explains the regulatory mechanism behind segregation, how it protects you in practice, and what happens when things go wrong.

What is Client Fund Segregation?

Client fund segregation rules require financial institutions to hold client funds separately from their own assets, preventing misuse and protecting clients in insolvency. In the UK, segregation is primarily governed by the FCA's Client Assets Sourcebook (CASS), under the Financial Services and Markets Act 2000.

The principle is straightforward: your money belongs to you, not the broker. The broker cannot use your funds for its own operations, cannot invest them in the broker's own business ventures, and cannot commingle them with company capital. Brokers regulated by the FCA in the UK are required to hold client money in separate accounts at approved banks, distinct from the firm's own money, which is a core component of the FCA's Client Money Rules.

Why This Matters: Insolvency Protection

Segregation exists to protect you specifically in the event a broker fails. If a firm becomes insolvent or runs out of operational funds, your money—held separately—cannot be claimed by the broker's creditors. Client money must be safeguarded, segregated in a client account, accurately recorded and reconciled, and applied, transferred or returned only for the client's purposes or as required by law. It is generally treated as trust money, giving clients priority on the firm's insolvency.

Two Layers of Protection

Separate bank accounts are the first layer. But the UK system adds a second: the Financial Services Compensation Scheme (FSCS). You can claim FSCS compensation if the firm has failed and cannot pay claims (this is called being "in default"), the firm was authorised by the FCA or PRA when you used it, and the firm carried out a regulated financial activity for you.

For investment accounts, you are protected up to £85,000 per eligible person, per firm if a segregated account is properly maintained. However, it's important to note that deposit protection limits differ: the deposit protection limit will be increased to protect up to £120,000 if a depositor's bank, building society or credit union fail, an increase from the current limit of £85,000. The protection level depends on which regulated activity the firm was conducting when it failed.

What Segregation Does Not Cover

Separate bank accounts protect client money from broker insolvency. They do not protect you from:

• Market losses: If your investments fall in value, segregation doesn't recover the loss. That's market risk, not insolvency risk.
• Fraud by you: If you authorize a transfer out of your account, that's not a segregation failure.
• Unsuitable advice: If a broker recommends a product that loses money, segregation doesn't apply—though unsuitable advice may qualify for a separate FSCS claim under different rules.

How to Verify Segregation

A broker's website will often claim funds are "segregated," but you should verify this independently. The firm must have been authorised by the FCA or PRA. You can verify authorization using the official FCA Financial Services Register, which shows whether the firm holds current authorisation and what regulated activities it is permitted to carry out. An FCA-authorized firm is legally required to comply with CASS segregation rules; an unauthorized firm is not.

If a firm loses authorization, your money moves out of FCA-regulated protection. This is why the authorization check comes first—it's the gateway to all other protections, including segregation.

The Regulatory Framework in Practice

Clients' funds may be moved out of segregated client money accounts, exposing the client to greater risk of loss in the event of firm failure if, for example, a retail client is reclassified. The FCA has publicly warned about this practice. Legitimate reclassifications can happen, but they must be transparent and require your informed consent; they are not automatic.

The segregation requirement is not a suggestion or marketing claim—it is a binding regulatory obligation, enforced through regular FCA audits of authorized firms. Breaches of CASS rules carry significant penalties and can result in enforcement action against the firm.

Key Takeaway

Client fund segregation is a foundational protection in the UK financial system. It ensures your money is legally separate from a broker's operations, and it works in combination with FSCS compensation to create a two-layer safety net. Understanding what segregation actually does—and what it doesn't—helps you evaluate the real financial stability of a platform, rather than relying on a marketing tagline.

Analysis, not investment advice.