The $7,800 Job Bag Mistake: A Real Case Study
The invoice looked fine
A small agency delivered a piece of work for a client. The invoice went out at $2,000, a normal number, nothing that raised a flag. On paper, the job was done and paid.
What actually happened underneath
The job took 52 hours to deliver. At real labour cost, that job cost the agency roughly $7,800 to produce. Nobody had done that maths while the job was live, because nothing in their stack was built to show it. Their project tool tracked tasks. Their time tracker logged hours. Neither one connected the two numbers to the invoice sitting in Xero.
The gap between what was charged and what it cost wasn't a one-off. It was happening on jobs across the business, quietly, every week, invisible until someone went looking.
Why nobody caught it sooner
This wasn't a bad team or bad work. It was a visibility problem. The onboarding quote for that job simply didn't reflect the real cost of delivery, and there was no system flagging that mismatch while the job was still open, only the tools to do the work, not the tools to see what the work was costing.
What would have caught it
A job bag system tags every hour to the job at its real cost the moment it's logged. The gap between $2,000 invoiced and $7,800 in labour would have shown up as a live, red-flag margin number on day one of the job, not a surprise after the invoice was already paid. That's the entire difference between finding out you lost money and preventing it.
The pattern behind the number
This is the same story behind CanTicket's founder anchors: a business paying $17,000 a year in disconnected tools, a team underquoting jobs by $12,000 without anyone noticing, an agency that couldn't see its own numbers until it was too late. Six years of running into this exact problem internally is what led to building CanTicket in the first place.
Find your own number
You don't need to guess whether this is happening in your business. Run the free 60-second profit leak calculator and see what your own jobs are actually costing you, before it's a surprise on the P&L.
