Guides
Break-even for a print shop, worked through
Print shop margins and break-even, worked on the constrained machine: contribution per press hour, the four places margin leaks, and how to audit a month.
What to take away
- Break-even in a print shop is a machine-hour question before it is a revenue question. Revenue targets hide which press paid for the month.
- Contribution per hour of the constrained machine is the one comparison that ranks jobs honestly.
- Margin leaks in four predictable places, and three of them never appear on an invoice.
- Reprints are capacity loss, not a customer service line. Subtract them before deciding a service is profitable.
- Audit a finished month against what was quoted. The gap is where the pricing model is wrong.
Break-even measured in hours, not dollars
The usual break-even question asks how much revenue covers fixed cost. In a shop where output is bounded by machines, that framing hides the thing you need.
Break-even in press hours
Hours to sell = fixed cost / contribution per hour
Fixed cost: rent, utilities, insurance, software, finance, salaried people
Available hours shrink after makereadies, changeovers, maintenance, approvals
If available hours approach hours to sell, it is a pricing problem
Ask instead how many productive hours on the constrained machine, at your average contribution per hour, cover the fixed cost of the month. Fixed cost here means everything that arrives whether or not a press runs: rent, utilities, insurance, software, finance on the equipment, and the salaried people who are there regardless.
Two figures follow. The first is how many hours the shop has to sell, and the second is how many it actually has. That second number is smaller than open hours by more than most owners expect, after makereadies, changeovers, maintenance and waiting for approvals.
Take a small commercial shop. Fixed cost for the month is $52,000: rent, utilities, insurance, software, equipment finance and salaried staff. Average contribution per constrained hour is $130. Break-even is 400 hours, which is $52,000 divided by $130.
The shop can sell 340 hours once makereadies, changeovers, maintenance and waiting for approvals are removed. That is 60 hours short. More quoting on the same equipment does not close that gap.
When the second number is close to the first, the shop is not short of work. It is short of capacity, and the answer is a pricing answer rather than a sales one.
Ranking work by contribution per constrained hour
Contribution is price minus the costs that only exist because the job exists: paper, plates, ink or clicks, outside services, and the labor and machine time consumed. Divide it by the minutes the job occupies the machine you are short of.
Ranking by contribution per hour
- Take price minus job-specific costs
- Divide by minutes on the constrained machine
- Re-check which machine is constrained each quarter
- Use measured minutes, not estimated makereadies
- Do not rank on revenue per invoice
That single ratio reorders a service list surprisingly hard. A high-margin item that ties up the folder for an afternoon can rank below a plain long run that clears the press and goes straight out. It also identifies work to decline, which is the part owners find hardest.
A typical range in small commercial shops is $60 to $180 of contribution per constrained hour. Paper cost, run length and the share of finishing done in house move that figure more than the price list does.
Three cautions on using it:
- Use the constrained machine, and re-check which one that is each quarter. Shops assume it is the press. It is often the bindery, and occasionally it is one person who does the hand work.
- Use measured minutes, not estimated ones. Estimated makereadies run optimistic, and the error is larger on short runs, which is exactly where the ranking matters.
- Do not rank on revenue per invoice. It flatters large, paper-heavy jobs that pass the money straight through to the mill.
Where the margin actually goes
Four leaks account for most of the gap between the quote and the month.
Four margin leaks
Leak
- Reprints and credits
- Capacity consumed twice
- Unquoted prepress
- Unbilled file fixing
- Spoilage above allowance
- Extra parent sheets
- Rush work priced flat
- Displaced jobs, changeovers
How it shows up
- Reprints and credits
- Reprint log by cause
- Unquoted prepress
- Prepress time per job
- Spoilage above allowance
- Paper reconciliation per job
- Rush work priced flat
- Schedule changes log
Where to find it
- Reprints and credits
- Unquoted prepress
- Spoilage above allowance
- Rush work priced flat
Where the margin goes
| Leak | How it shows up | Where to find it |
|---|---|---|
| Reprints and credits | Capacity consumed twice, sold once | A reprint log kept by cause and by service, not by customer |
| Unquoted prepress | Hours spent fixing supplied files that nobody billed | Prepress time recorded against the job rather than against overhead |
| Spoilage above allowance | Parent sheets in exceeding product out | Paper reconciliation per job, monthly at minimum |
| Rush work priced flat | Displaced jobs, extra changeovers, renegotiated dates | Schedule changes logged with what moved and why |
Only the first has any chance of appearing on an invoice. The other three are silent, which is why a shop can be busy, price at what looks like a healthy margin, and still finish the month short.
The reprint line deserves separate attention: some reprints are a production fault, and some follow a proof the customer approved and then read properly. Some are nobody's fault: the run matched the proof but not the customer's memory of the same job last year. Settle whose cost each of those is in your terms of sale in advance.
Have a qualified adviser review it, rather than negotiate on the phone while the press waits.
Auditing a finished month
Do this once a quarter on a month that is closed and paid. The steps below take about half a day on a small shop.
Quarterly month audit
- Pull jobs over a set size threshold
- Compare quoted vs actual time and sheets
- Sort by gap size, not job size
- Recompute contribution per constrained hour
- Change the wrong assumption, not a general uplift
- List every job that ran on the constrained machine in that month, and pull the quote, the job ticket and the material issue for each.
- Compare quoted minutes with measured minutes. Flag each job that ran more than 15 percent over, and note whether the overrun was makeready, a changeover or waiting.
- Reconcile paper. Total the sheets issued, the sheets sold and the reprint sheets per job. Anything above the allowance is a leak.
- Check prepress hours billed against prepress hours recorded. File fixing that nobody billed belongs to the job, not to overhead.
- Rebuild the loaded hourly cost from the month's actuals. The arithmetic behind the floor those estimates are built on is set out step by step in building a job floor from named variables. The wider structure it sits inside is in how setup and run split a print price.
- The wage half of the loaded hourly cost can be checked against published local occupational wage tables.
- The job records that make the audit possible are the ordinary business records described in the IRS guidance on what to keep.
- Name the one assumption the audit proved wrong, and reprice the service list it touches. A general uplift is the wrong repair. It raises prices on work that was already profitable and leaves the underquoted job underquoted.
What a margin figure cannot tell a customer
What reaches the customer is a price and whatever you said about it, and anything advertised has to hold when the invoice arrives. The FTC's advertising guidance for small business covers the difference between a headline number and a number a buyer can rely on.
Machine capacity is the base of the whole calculation. Read it beside what each press and finishing line commits you to and, for a shop still being built, the minimum kit list before the doors open.
If break-even keeps landing above the hours you can physically sell, the question is capacity. That is where the decision to add space, shift or site begins.
The customer never sees the margin, the capacity or the leak. Keep those inside the shop and quote a price you can hold.
Common questions
What is a normal profit margin for a print shop?
There is no figure worth quoting here. Margins move with job mix, run lengths, paper terms and how much of the finishing is done in-house. A number without those behind it tells you nothing about your own shop.
How do I count a reprint in the numbers?
As consumed capacity on the constrained machine plus the materials, charged against the original job. Counting it as a separate small job makes the month look busier and the original job look more profitable than it was.
Should quiet months change the pricing?
Not the structure. A quiet month is a demand problem or a capacity problem, and repricing to fill a press usually trains customers to wait. Fix the input that is actually wrong.
How often should break-even be recalculated?
When fixed cost changes: a lease, a finance agreement, a hire, an insurance renewal. Recalculating it monthly produces noise, because the denominator moves with job mix.
