You trusted someone for years. They ran your office or your yard, they had the keys and the access, and somewhere along the way materials, hours, or capacity started walking out the door. Now you are staring at the mess wondering how you missed it, and whether you press charges or just clean it up quietly.
If that is your week, you are not careless and you are not naive. You built a business on trust because that is how trades businesses run. The problem is that trust without controls is not a system. It is an opening, and preventing that opening from being used is on you, not on your crew’s character.
I am Bruce Baker. I run the Business Building Program at Workplaces in Edmonton, and I have spent more than 20 years advising owners in construction and the skilled trades. I have sat across from owners working through exactly this, and I want to be plain with you about how it happens and what stops it.
Why internal theft hits trades businesses hardest
Internal loss rarely looks like cash out of the till. In a trades or manufacturing shop it looks like:
- Materials leaving on a truck for a side job that never gets billed.
- Labour hours logged against your jobs that went to someone else’s.
- A trusted office manager adjusting invoices, approving their own reimbursements, or paying a vendor that does not exist.
- Shop capacity, your machines and your crew, used after hours for private work.
The people best positioned to do this are the ones you trust most, because trust is what removed the checks. The office manager who does everything is also the only person who sees everything. When one person owns the books, the deposits, and the reconciliations, nobody is watching the watcher.
Why it compounds if you ignore it
Here is the part owners underestimate. A small leak does not stay small. Someone who gets away with a little tests for more, because nothing pushed back. What starts as a few unbilled materials becomes a pattern that runs for years before anyone catches it.
The cost is not only the stolen value. You lose the margin on the work, you lose the tax already paid on phantom expenses, and you lose the time your crew spent producing something you never got paid for. On a job already running thin, that is the difference between profit and a loss you cannot explain.
There is a second cost that is harder to see. When you cannot read your own numbers, you cannot tell theft from bad pricing from poor scheduling. The books stop telling the truth, and you start making decisions off fiction. That is how an owner ends up profitable on paper and living cheque to cheque.
The fix: separate the money, then watch the numbers
Preventing employee theft is not about hiring nicer people. You prevent it by building controls that do not depend on any one person being honest.
1. Split the duties nobody should hold alone
The person who enters invoices should not also approve payments. The person who runs payroll should not also add employees. If your office manager owns all of it, you have a single point of failure. Break the chain so more than one set of eyes touches money moving in and out.
2. Read cash flow off the bank, not just the software
I coach owners to read cash straight off the bank transactions rather than trusting the accounting software alone, because software shows what someone typed in. The bank shows what actually happened. Set up separate accounts for profit and tax, an idea drawn from the Profit First framework developed by Mike Michalowicz, so money is physically moved and easier to track. When cash lives in its own accounts, unusual movement is obvious.
3. Reconcile materials to jobs
Every job should have a material budget and an actual. When actuals drift with no explanation, you have a signal. A weekly KPI review and a post-mortem on completed jobs turns that signal into a habit. The same rhythm that catches rework catches theft.
4. Hire for the seat, not the interview
Many of these situations trace back to putting the wrong person in a position of trust. I measure candidates for high-trust roles against the real demands of the seat using a Person Profile assessment, weighting behaviours, driving forces, and competencies, so the decision rests on fit instead of a good interview voice.
What about the person you already caught?
The legal question, whether to press charges, is real, and I am not a lawyer. Talk to one before you act, and document everything before you confront anyone. That is the honest limit of what I can tell you here.
What I can tell you is this: do not let the emotion of one betrayal push you into locking down so hard that nobody can do their job. The goal is not to treat your crew like suspects. It is to build controls that quietly make honesty the easy path and dishonesty the visible one.
One concrete next step
This week, pull your last three months of bank transactions and reconcile them yourself, line by line, against what your software says you spent and earned. Not your bookkeeper. You. You are looking for anything you cannot explain in one sentence.
If that exercise surfaces gaps you cannot close, or you want to build the weekly rhythm and controls so this never surprises you again, that is the work we do in the Business Building Program. Build what compounds.
