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FCA CASS 15 safeguarding rules: Does your payment or e-money firm need a statutory auditor?

Written by Ralph Hearn | 06/11/2026

Ralph Hearn FCCA explains the new safeguarding rules for payment services providers and e-money firms, and when they may need to appoint a statutory auditor.

Does your payment or e-money firm properly safeguard customers funds?

How clear are you about whether the Financial Conduct Authority’s (FCA) new safeguarding rules mean you now need an external audit?

Since 7 May 2026, new FCA safeguarding requirements have applied to payment and e-money firms. These include the introduction of CASS 15 which means there's new reconciliation, record-keeping, and resolution-pack requirements together with an external safeguarding report for firms that fall within the audit requirement.

One of the most significant changes that's come into place is who can carry out the safeguarding work. If your organisation requires an audit, you can no longer simply rely on a general regulatory consultant to provide the requisite report. The appointed auditor must meet the FCA’s eligibility, skills, resources, and experience requirements.

In this guide, we’ll explain exactly:

  • Who the rules impact 
  • When you may need an audit
  • What's involved in the safeguarding report
  • What firms need to prepare and do now

Here are quick links to what's covered in this post:

What changed under the FCA's CASS 15 safeguarding rules? What does the auditor specifically report on?
Which specific payment and e-money firms are affected When does the first safeguarding audit need to happen?
Does your firm now need a safeguarding audit? What should firms be doing now?
Why can't a regulatory consultant carry out the new safeguarding report? How to choose an auditor for CASS 15 safeguarding work?
Is the new CASS 15 safeguarding audit limited or reasonable assurance? Do you need a statutory auditor for your CASS 15 safeguarding work?

What changed under the FCA's CASS 15 safeguarding rules? 

CASS 15 is a section of the FCA’s Client Assets Sourcebook that sets out safeguarding requirements for relevant payment and e-money firms.

It establishes a framework for how relevant funds are identified, safeguarded, recorded, and reconciled. The wider regime also introduces additional reporting and resolution-pack requirements.

These changes include:

  • Identifying and safeguarding relevant funds
  • Internal and external safeguarding reconciliation requirements
  • Record-keeping requirements
  • Resolution-pack requirements
  • Regular FCA safeguarding reporting
  • External safeguarding reporting for relevant institutions

Which specific payment and e-money firms are affected by CASS 15?

The FCA says the safeguarding rules apply across:

  • Authorised payment institutions 
  • Authorised e-money institutions 
  • Small e-money institutions
  • Credit unions issuing e-money 

Small payment institutions can opt into the safeguarding regime. There are also activity-specific exclusions, so being an FCA-regulated payment business does not automatically mean every part of the regime applies in exactly the same way.

Does your firm now need a safeguarding audit?

Under SUP 3A (a chapter in the FCA Supervision Manual), relevant institutions have to appoint an external auditor unless the FCA's exemption applies. The exemption applies where the institution in question wasn't required to safeguard more than £100,000 of relevant funds at any time for at least 53 weeks.

If your firm falls within the audit requirement, an important practical change is that the auditor must meet the FCA's qualification requirements!

Firms therefore need to take reasonable steps to ensure the auditor has the appropriate skills, resources, and necessary experience to be eligible for appointment under the relevant statutory-auditor requirements.

Why can't a regulatory consultant carry out the new safeguarding report?

The FCA recognised that some payment firms had previously used compliance consultants to carry out safeguarding work. Under the new regime, however, the required safeguarding report is an auditor reporting engagement rather than simply a general compliance review.

Is the new CASS 15 safeguarding audit limited or reasonable assurance?

The safeguarding report required under SUP 3A is prepared as a reasonable assurance engagement.

Reasonable assurance provides a higher level of assurance than a limited assurance engagement and will typically involve more extensive work and evidence.

That distinction matters because some firms may previously have encountered safeguarding or CASS work performed on a different basis. The scope of the work required for your firm needs to be established before the engagement begins.

What does the auditor specifically report on?

The safeguarding report has to address whether, in the auditor's opinion:

  • The institution maintained systems adequate to comply with the relevant funds regime throughout the reporting period
  • The institution was compliant with the relevant funds regime at the end of the reporting period

The report also has to identify relevant breaches if any are found.

In other words, this isn't simply a check that a reconciliation spreadsheet exists. The auditor needs sufficient evidence to form an opinion on the systems used, that they comply with the safeguarding regime, and the firm's compliance at the reporting date.

When does the first safeguarding audit need to happen?

The FCA says the reporting period must end no more than 53 weeks after the relevant institution first becomes subject to SUP 3A, or after it ceases to qualify for the exemption, and the auditor must deliver the report to the FCA within four months of the period end.

What should firms be doing now?

If you're responsible for safeguarding within a payment or e-money firm, then consider asking yourself the following questions:

  • Are we clear whether SUP 3A's external audit requirement applies to us?
  • Have we confirmed whether the £100,000 exemption applies?
  • Do we know when our first reporting period ends?
  • Have we appointed an appropriately qualified auditor?
  • Are our safeguarding records and reconciliation processes operating as intended?
  • Is the evidence behind those processes readily available?
  • Have we allowed enough time to deal with any arising issues before the auditor reports?

The first time you discover that your safeguarding records don't support the audit shouldn't be when the reporting deadline is approaching.

How to choose an auditor for CASS 15 safeguarding work?

Before you appoint an auditor, consider asking:

  • Are they eligible to undertake the required work?
  • Do they understand FCA-regulated payment and e-money businesses?
  • Do they have sufficient experience in safeguarding and CASS assurance?
  • Who will actually conduct the engagement?
  • How will scope and evidence requirements be agreed?
  • What will the timetable look like?
  • What happens if potential breaches or deficiencies are identified?
  • How early should you appoint them?
  • Have they carried out CASS or safeguarding assurance engagements before, rather than simply statutory company audits?

Do you need a statutory auditor for your CASS 15 safeguarding work?

We're a statutory firm of auditors with experience carrying out CASS assurance engagements for FCA-regulated organisations, including both limited and reasonable assurance work.

If you're unsure whether the new safeguarding audit requirements apply to your organisation, or you need to understand what an assurance engagement could involve, do get in touch with our audit team about your circumstances.

The content of this post was created on 06/11/2026.

Please be aware that information provided by this blog is subject to regular legal and regulatory change. We recommend that you do not take any information held within our website or guides (eBooks) as a definitive guide to the law on the relevant matter being discussed. We suggest your course of action should be to seek legal or professional advice where necessary rather than relying on the content supplied by the author(s) of this blog.