What it means
At its core, every business faces choices about how to allocate its time, money, and staff. When you need a component, a software tool, or a service to run your operations, you must decide whether to build the capability in-house or buy it from an outside provider.
This process is about much more than just looking at the price tag. You need to weigh both direct costs, such as materials and labour, and indirect costs, such as training, quality control, and shipping.
Why does this matter? Making the right call protects your profit margins and lets your team focus on what they do best.
If you try to build everything yourself, you can stretch your resources too thin and lose your competitive edge. On the other hand, relying entirely on outside suppliers can make you vulnerable to price hikes, delivery delays, and a loss of control over product quality.
In practice, managers use this analysis when launching new product lines, updating technology systems, or expanding into new markets. The decision-making process typically starts by gathering financial data from both internal production teams and external vendors.
It also requires a careful look at capacity. Do you have idle staff and machinery that can take on the work, or would you need to hire new people and buy expensive equipment?
Beyond the raw numbers, strategic factors play a huge role. Leaders must consider intellectual property risks.
If you share your unique processes with a supplier, could they copy your idea? You also need to think about future growth.
If demand skyrockets next year, can your chosen path scale up quickly to meet it? Balancing these financial and operational factors ensures the business stays agile and profitable.
In practice
Real-world examples.
Example
A tech startup needs a mobile app. Building it in-house costs twenty thousand pounds in staff wages. Hiring an external agency costs fifteen thousand pounds. The founder chooses to buy from the agency to save money and launch faster.
Example
A local bakery considers outsourcing its pastry delivery service to a courier firm for eight hundred pounds a month. Buying a van and hiring a driver costs twelve hundred pounds a month. The bakery decides to buy the external service.
Example
An established manufacturing firm usually buys plastic handles for its tools. When the supplier raises prices by forty percent, the firm evaluates making the handles internally, finding that existing machinery can do the job at a lower cost.
Think of it
“Deciding whether to cook dinner at home or order takeaway. Cooking yourself uses your own groceries and time, while ordering out costs more money but saves you effort.
Formula
Calculation
Total Make Cost = Fixed Costs + (Variable Cost per Unit x Quantity)
Total Buy Cost = Purchase Price per Unit x Quantity
Example:
Fixed Costs for equipment = 5,000 pounds
Variable Cost to make = 10 pounds per unit
Purchase Price from supplier = 25 pounds per unit
Quantity needed = 400 units
Make Cost: 5,000 + (10 x 400) = 9,000 pounds
Buy Cost: 25 x 400 = 10,000 pounds
In this scenario, making the item is cheaper by 1,000 pounds.Case study
Seen in the real world.
BrightBrew, a growing coffee roastery, needed to package its beans in eco-friendly zip bags. For two years, the founders used an external packaging firm that charged two pounds per bag, totalling forty thousand pounds annually for twenty thousand bags.
As demand surged, the external firm raised prices by twenty five percent, pushing annual costs to fifty thousand pounds. Frustrated by rising expenses and occasional delivery delays, Operations Director Sarah ran a make or buy analysis. She discovered that leasing a packaging machine would cost twelve thousand pounds a year in fixed lease payments, while raw materials and labour would add one pound per bag.
For twenty thousand bags, the total internal cost would be twelve thousand pounds plus twenty thousand pounds, equalling thirty two thousand pounds. This represented a massive eighteen thousand pound annual saving compared to the new supplier quote.
BrightBrew decided to make the packaging in-house. They leased the machine, hired one part-time operator, and regained control over their supply chain. Within six months, the setup costs were fully recovered, and profit margins improved significantly.
Watch out
Common mistakes.
- Ignoring hidden costs like shipping, quality inspections, and supplier management.
- Failing to account for future capacity constraints if demand suddenly increases.
- Focusing solely on short-term financial savings while ignoring long-term strategic risks.
Questions
People also ask.
What is the main goal of a make or buy decision?
The main goal is to determine the most cost-effective and strategic way to acquire goods or services needed for business operations, maximising overall profitability.
Are these decisions only about money?
No. While costs are crucial, managers must also evaluate quality control, supplier reliability, intellectual property risks, and internal staff capacity.
Can a decision be reversed later?
Yes, businesses often switch between making and buying as their size, market conditions, and financial resources change over time.
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