What Manual Work Really Costs Your Business
Short answer: The cost of manual work is the hours spent on it each year, multiplied by the loaded hourly cost of the person doing it, plus the cost of the mistakes it causes and the value of what that time could have gone toward. Add those three together and a “quick daily job” often turns out to be one of the most expensive things in the business.
How do you calculate the cost of a manual task?
If you’d rather not do the sums by hand, the manual work calculator does them as you type and can email you a report.
Use this formula:
Annual cost = (hours per year x loaded hourly cost) + cost of errors + opportunity cost
The first part is arithmetic. The second and third take a little honesty.
- Hours per year. How long does the task take each time, how often does it happen and how many working days a year? Use your own calendar and be realistic about busy periods.
- Loaded hourly cost. Wages plus on-costs such as superannuation, leave, payroll tax and equipment. It’s higher than the rate on a payslip.
- Cost of errors. What does a mistake cost you? Correction time, refunds, delayed payments and unhappy customers all count.
- Opportunity cost. What could the same person have been doing instead? This is the hardest to measure and often the largest.
What does a worked example look like?
Here’s an example using a made-up hourly rate. The hours come from real projects, but the rate is hypothetical and labelled as an example only, so swap in your own.
| Task | Time | Hours per year | Example loaded rate | Example annual cost |
|---|---|---|---|---|
| Daily information hand-off between two systems | 3 hours a day, about 250 working days | 750 | $60 an hour | $45,000 |
| Manual invoice creation for wholesale orders | 2.5 hours a week | about 125 | $60 an hour | $7,500 |
The first row mirrors the SAP and Shopify integration for Bont Cycling, where about three hours a day came back to the team, roughly 750 hours across a working year. The second mirrors the Xero invoicing automation, where about 120 to 125 hours a year was being spent copying numbers between two screens. I’ve applied the same example rate to both, only to show how the formula works. The rate isn’t anything either business paid.
Hours alone make the case, and the dollar figure makes it easier to compare with the cost of fixing it.
Why does the cost of errors matter?
Because manual work is rarely accurate every time. In the invoicing example I wrote about in what I learned automating 120 hours of manual work, the error rate was higher than anyone wanted to admit: mismatched line items, wrong tax codes and invoices sent to the wrong contact. Each mistake started a correction chain that took more time.
You don’t need exact figures. Estimate how often mistakes happen, how long each takes to fix and what it costs when one reaches a customer. Even a rough number changes the picture.
What is the opportunity cost of manual work?
It’s the work that doesn’t get done. The person copying data could be talking to customers, improving a process or growing the business. There’s also a quieter cost: the mental load of remembering which tasks need handling by hand, and the risk that a process stops when one person is away.
You can’t put a precise dollar figure on this, but it’s worth writing it down. If the answer is “nothing much”, the task may not be worth automating. If the answer is “we’d finally get to X”, the real cost is higher than the arithmetic suggests.
Which tasks should I look for?
A simple checklist. Anything that ticks several of these is a candidate:
- It happens daily or weekly.
- It moves data from one system into another.
- It follows rules that someone could write down.
- It involves copying, pasting or re-typing.
- It uses a spreadsheet as the bridge between systems.
- It causes errors or rework.
- It stops when one particular person is away.
- It gets worse at busy times, such as month end or after a campaign.
Many of these show up in the signs a Shopify store has outgrown its setup. For a multi-store business, the same exercise shows what is being duplicated across stores.
Once I have the number, what do I do with it?
Compare it with the cost of fixing the problem. Often the fix is smaller than people expect, because the hard part is understanding the process, not writing the code. The mapping process is how I work that out before anything is built.
It also helps you decide whether to connect what you have or replace it, which I cover in why integration beats migration. You can see the kinds of work I do on the services page.
Want to work out what a task is costing you? Start a conversation and bring your best estimate of the hours. We’ll build the rest of the picture together.
Frequently asked questions
How do you calculate the cost of manual work?
Multiply the hours spent each year by the loaded hourly cost of the person doing it, then add the cost of errors and the value of what that person could have done instead. Loaded cost includes wages plus on-costs like super and overheads, so it is higher than the hourly rate on a payslip.
What is loaded hourly cost?
Loaded hourly cost is the full cost of an hour of someone's time, including wages plus superannuation, leave, payroll tax, equipment and other overheads. It is always higher than their base hourly rate, and it's the right number to use when pricing the time spent on a task.
How many hours a year is 3 hours a day?
Three hours a day across roughly 250 working days is about 750 hours a year. That's the same as nearly 19 full 40-hour working weeks. The exact figure depends on your working days, so use your own calendar for an accurate number.
Which tasks are worth automating first?
Start with tasks that are frequent, rule-based and move data between systems, such as re-keying orders, creating invoices or updating stock. Frequent, repetitive and error-prone tasks usually have the best payback, while rare or judgement-heavy tasks usually don't.
