By Lucy Brown, AML Consultant at Calathea Solutions
As accountancy firms grow, anti-money laundering (AML) compliance doesn’t change. What does change is how you manage it.
Whether you have a small team or a large, multi-office practice, you’re still expected to meet the same regulatory standards. But with more people, more processes and more moving parts, keeping control becomes significantly harder.
For larger firms, the challenge isn’t understanding the rules. It’s making sure those rules are applied consistently, clearly and effectively across the business.
So where do things become more complex — and what can you do about it?
Why AML gets harder as your firm grows
Growth brings new risks. More staff means:
- More people to train
- More activity to monitor
- More reliance on consistent processes
At the same time, visibility reduces. Senior staff — particularly those responsible for compliance — are often further removed from day-to-day work.
That creates a gap between policy and practice.
When that gap widens, the risk of errors increases — from missed red flags to delayed reporting. In a regulated environment, those mistakes can lead to fines, reputational damage, or even loss of licence.
The reality for MLROs in larger firms
The role of the Money Laundering Reporting Officer (MLRO) becomes significantly more demanding in a larger practice.
In smaller firms, the MLRO may be close to client work and able to spot issues directly. In larger firms, that’s rarely the case. Instead, they rely on others to:
- Identify suspicious activity
- Follow correct procedures
- Escalate concerns in a timely way
That reliance introduces risk.
At the same time, many MLROs are balancing multiple responsibilities — from fee-earning to team management — without always having the time or resources to oversee AML properly.
There’s also a personal dimension. AML responsibilities carry individual accountability, which means failures don’t just affect the firm — they can impact the individual responsible.
For larger firms, the takeaway is clear: the MLRO needs more than a title — they need proper support, authority and time to do the role effectively.
The added complexity of multiple locations and remote teams
Once a firm operates across different offices — or supports remote working — maintaining consistent AML processes becomes more difficult.
In a single-office environment, informal communication helps highlight issues. In larger firms:
- Teams may work in isolation
- Communication becomes structured rather than organic
- Inconsistencies can develop between locations
Remote working adds another layer. Staff need to clearly understand:
- What constitutes suspicious activity
- How to report concerns
- Who to report to
This means AML processes can’t rely on assumptions or occasional training. They need to be:
- Clearly documented
- Easily accessible
- Consistently communicated
Systems also become critical. If AML records and documentation are spread across different tools or locations, responding to regulatory queries quickly becomes a challenge — and that’s a risk in itself.
Why culture matters more than policy
In larger firms, policies alone don’t guarantee compliance.
What makes the difference is culture.
If AML is seen as a compliance exercise rather than a firm-wide responsibility, processes are more likely to fail. Staff need to:
- Recognise potential red flags
- Feel confident raising concerns
- Understand their role in protecting the firm
And that starts at leadership level.
When senior teams visibly support AML — through time, investment and attention — it becomes part of everyday behaviour, not just documentation.
Without that foundation, even well-designed policies can break down under pressure.
Training: the most common weak point
Training is one of the biggest risks in larger firms — simply because of scale.
All relevant staff must be trained, and that training must be recorded. But as teams grow, it becomes easier for people to:
- Miss training
- Receive outdated information
- Lack clarity on their responsibilities
Effective training doesn’t have to be overly formal, but it does need to be:
- Regular
- Role-specific
- Properly documented
Importantly, AML training isn’t a one-off task. Regulations evolve, and so do the tactics used in financial crime. If your training hasn’t been updated recently, it may no longer reflect current risks.
What’s at stake if things go wrong
AML compliance isn’t just about penalties.
Failure to identify or report suspicious activity can mean a firm unknowingly becomes part of illegal activity. That carries serious consequences — legally and professionally.
On top of that, reputational damage can be long-lasting. Regulatory action is often public, and firms can find that their standing with clients and peers is affected.
For larger firms, the exposure is greater — simply because there is more activity and more reliance on systems and people working together.
How larger firms can stay in control
Managing AML effectively at scale comes down to a few key principles:
1. Set the tone from the top
Leadership needs to treat AML as a priority — not an afterthought. That means backing it with time, budget and visible support.
2. Support the MLRO properly
Ensure the MLRO has:
- Enough time to focus on compliance
- Clear authority across the firm
- Access to the right tools and systems
3. Invest in structured, ongoing training
Make training consistent across the firm, tailored to roles, and regularly updated.
4. Standardise processes across locations
Whether teams are in one office or several, the approach to AML should be clear, consistent and easy to follow.
5. Use systems that support visibility
Documentation and reporting processes should be centralised and accessible, so information can be retrieved quickly when needed.
Final thought
As your firm grows, AML compliance becomes more critical. The rules stay the same, but the stakes increase.
With the right culture, clear processes and proper support in place, larger firms can manage that complexity effectively — and turn compliance into a strength rather than a risk.
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