One Signature Can Cost You everything

Written By Heynes Kotze

You most likely won’t lose clients because you got the numbers wrong.
You’ll lose them because you didn’t see the risk coming.

That’s the uncomfortable truth sitting at the heart of contract risk, and it’s hitting Chartered Business Accountants in Practice harder than most care to admit.

Every week, you sign engagement letters, review agreements, or “just have a quick look” at a client contract.

It feels routine. Harmless, even.

Until it isn’t.

Contracts Aren’t “Legal’s Problem” Anymore

For years, contracts sat comfortably in the legal department.

Not anymore.

Today, every agreement you touch, whether it’s an engagement letter, a service contract, or a client-supplied document—carries real commercial risk.

Not because the law suddenly changed overnight, but because expectations have.

Your work, your advice, and even your silence can be judged against:

  • Professional standards

  • Commercial reasonableness

  • Clarity of communication

  • The client’s understanding of what was agreed

And here’s the shift most CBAPs underestimate:

You don’t need to be wrong to lose. You just need to be unclear.

The Five Things That Still Matter Most

Strip away the complexity, and contract law still rests on familiar ground.

A valid contract depends on:

  • Agreement (a true meeting of minds)

  • Capacity (the right parties signing)

  • Legality (lawful purpose)

  • Possibility (it can be performed)

  • Certainty (clear, defined terms)

Miss one and the contract can fall apart.

But in practice, that’s rarely where things go wrong.

They go wrong in the grey areas:

  • Vague scope

  • Undefined deliverables

  • Assumptions instead of alignment

That’s where disputes are born.

Not in what was written, but in what was meant.

The CPA Changed the Landscape (But Not Always)

Here’s where many practitioners get caught out:

The Consumer Protection Act does not automatically apply to every engagement.

Its application depends on:

  • Whether your client qualifies as a “consumer”

  • The size and nature of the entity

  • The type of service being provided

So no, you cannot assume your engagement letter is governed by the CPA.

But here’s the real risk:

You also can’t assume it isn’t.

Because when the CPA does apply, the consequences are real:

1. Fairness becomes enforceable

Unfair or one-sided terms may not hold.

2. Risk clauses must be visible

Limitation of liability clauses must be clearly disclosed—not buried.

3. Not everything can be excluded

Some risks simply cannot be signed away.

4. Plain language matters

If your client can’t understand it, enforcing it becomes harder.

But here’s the shift most professionals miss:

Even where the CPA doesn’t apply, courts are increasingly influenced by the same principles (fairness, transparency, and reasonableness).

So the real question is no longer:

“Does the CPA apply?”

It’s:

“Would this contract survive if it did?”

The Mistakes Quietly Killing Practices

Contract failures don’t usually explode.

They build quietly, then hit all at once.

Here’s what keeps showing up:

“We just used a template”

Templates don’t reflect your actual services or risk.

“We didn’t think it was necessary”

Missing clauses only matter when things go wrong.

“The client understood”

If it’s not clear in writing, it’s difficult to enforce.

“We’ve always done it this way”

Old documents don’t keep up with new expectations.

“It was just a verbal agreement”

Valid? Maybe.
Provable? Rarely.

Each one feels small.

None of them are.

The Real Risk: Scope Creep

Ask any CBAP what causes the most friction, and you’ll hear it:

“They expected more than what we agreed.”

But here’s the reality:

If your engagement letter isn’t clear, you may struggle to enforce your position, especially where fairness principles come into play.

Undefined scope is one of the biggest risks in practice:

  • “General accounting services”

  • “Advisory support”

  • “As needed assistance”

They sound flexible.

But they create unlimited expectation.

And when expectations grow but fees don’t, conflict follows.

Contracts Are About Clarity, Not Just Protection

Most accountants think contracts protect them.

But the real value is simpler:

A strong contract:

  • Sets expectations

  • Aligns understanding

  • Prevents disputes

The best contracts don’t win cases.

They stop cases from happening.

The Red Flags You Can’t Ignore

Watch for these:

  • Vague language (“reasonable time”, “as needed”)

  • Hidden exclusions in fine print

  • Personal guarantees

  • Automatic renewals

  • No dispute resolution clause

  • No POPIA considerations

Each one is a risk trigger.

You don’t need to fix everything.

But you do need to see it.

Know Where Your Responsibility Ends

You’re not expected to be a lawyer.

But you are expected to:

  • Identify risk

  • Communicate it clearly

  • Document your advice

  • Escalate when needed

Failing to do this doesn’t always create legal liability.

But it almost always creates:

Loss of trust.

And that’s what really costs you the client.

The Power of Writing It Down

The simplest protection?

Documentation.

  • Confirm advice in writing

  • Record key decisions

  • Note when clients go against recommendations

  • Update engagement letters regularly

Because memory fades.

But records don’t.

The New Role of the CBAP

You’re not just managing numbers anymore.

You are:

  • A risk identifier

  • A translator of complexity

  • A protector of business value

Your clients may not understand contracts.

But they expect you to spot what they can’t.

That’s your edge.

The Bottom Line

Contracts are no longer admin.

They are risk.

Every agreement carries:

  • Legal consequences

  • Financial exposure

  • Reputational impact

Not because you’re a lawyer, but because you’re expected to see what others miss.

Want to Get This Right?

If this feels familiar, you’re not alone.

Law of Contract CPD CourseMost CBAPs were never trained to deal with contract risk, yet face it daily.

That’s why this CPD exists:

👉 “One Signature Can Cost You Everything” – Law of Contract CPD

Inside, you’ll learn:

  • What to look for in contracts

  • When the CPA may (and may not) apply

  • Where your responsibility starts and stops

  • How to protect your practice without overstepping

📌 Access the CPD here: Law of Contract CPD Course

Final Word

You don’t need to become a legal expert.

But you do need to stop treating contracts like admin.

Because today, one overlooked clause doesn’t just create risk, it costs you the client.

Join CIBA and we’ll show you how to turn compliance into confidence and protect your practice from risks you didn’t even know you were carrying.

Heynes Kotze
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