What Is a Job Bag System? (And Why Most Service Businesses Get It Wrong)
What is a job bag, actually?
A job bag is the original agency term for a single container that holds everything tied to one piece of work: the brief, the hours logged against it, the materials or contractor costs, and the invoice that eventually goes out. The idea is simple: one job, one bag, one number at the end that tells you whether it made money.
A job bag system is software that does this automatically, in real time, instead of someone reconstructing it after the fact in a spreadsheet.
Why most service businesses don't actually have one
Most agencies and service teams think they have this covered because they use a project management tool. They don't. Asana and Monday.com track tasks and deadlines. They don't know what an hour of your senior designer's time costs versus a junior's, they don't connect to what you actually invoiced, and they don't tell you a job is bleeding money until someone manually pulls the numbers together, usually weeks after the job has closed.
That gap is exactly how a service business can invoice a client $2,000 for a job that took 52 hours to deliver, at a real labour cost of $7,800, and nobody notices until the P&L closes. The tools tracked the tasks. Nobody was tracking the money.
What a real job bag system needs to do
- Track time against the specific job, not just a generic project
- Know the real cost of that time, labour rate, contractor rate, internal vs billable
- Show margin while the job is still open, not after invoicing
- Sync two-way with your accounting system (Xero) so the numbers match what finance sees
That last point matters more than it sounds. A job bag system that lives apart from your accounting software is just another spreadsheet with a nicer interface. The moment it disconnects from Xero, you're back to reconciling by hand at month-end, which is the exact problem it's supposed to solve.
The real test
Ask yourself: right now, today, could you tell me whether the job you're delivering this week is going to be profitable? If the honest answer involves "I'd have to check a few things and get back to you," you don't have a job bag system. You have task management with an invoice bolted on the end.
See your own number
CanTicket is built specifically to close this gap, job costing and margin visibility that syncs two-way with Xero, so you know what a job costs while it's still running. Run the free 60-second profit leak calculator and see what your own jobs are actually costing you.
