A make‑or‑buy decision (also called an outsourcing decision) is a choice a company makes between producing a good or performing a service internally (making/insourcing) or purchasing it from an external supplier (buying/outsourcing). A sound decision accounts for all costs (direct and indirect), operational capabilities, strategic priorities, and risks — not just the sticker price of a supplier quote. (Source: Investopedia)
Key takeaways
– Make‑or‑buy decisions compare total costs and strategic implications of in‑house production versus third‑party supply.
– A rigorous decision combines quantitative analysis (total cost of ownership, break‑even) with qualitative assessment (core competencies, IP protection, supplier reliability).
– Reassess decisions periodically and whenever market conditions, demand, technology, or supplier status changes.
(Sources: Investopedia; Strategy&)
1. How to analyze a make‑or‑buy decision — step‑by‑step
Follow a structured process to ensure you capture cost drivers, risks and strategic factors.
Step 1 — Define scope and requirements
– Precisely define the product/service, required quality levels, delivery lead times, volumes, regulatory constraints, and any IP or security requirements.
– Decide the time horizon for the decision (short term vs. long term).
Step 2 — List all cost categories (Total Cost of Ownership)
For making (in‑house):
– Fixed/one‑time costs: capital equipment, tooling, facility expansion, setup and certification costs.
– Variable costs: raw materials, direct labor, utilities, consumables.
– Overhead and allocation: supervisory labor, maintenance, quality control, administrative support.
– Inventory carrying and storage costs, scrap/obsolescence, disposal costs.
– Cost of capital and depreciation, regulatory compliance costs.
For buying (outsourcing/purchasing):
– Purchase price, shipping and insurance, import duties and taxes.
– Receiving, inspection, inbound logistics, and inventory holding.
– Supplier management, contract management, supplier development.
– Costs of dual/multiple sourcing (if used) and potential penalties for minimum orders.
– Transition costs (qualification, audits) and costs associated with lost internal capacity or reassigning labor.
Step 3 — Build comparable unit‑cost models
– Make unit cost = (Fixed costs amortized per unit) + (Variable cost per unit) + (Allocated overhead and holding costs).
– Buy unit cost = Supplier unit price + inbound logistics + inspection/QA + holding costs + contract/transaction costs.
– Example: If annual demand = 100,000 units, fixed cost = $500,000, variable cost = $2/unit → make cost per unit = (500,000/100,000) + 2 = $7. If buy price is $8/unit, making is cheaper on a pure cost basis.
Step 4 — Sensitivity and scenario analysis
– Run sensitivity tests on key variables: demand volume, labor rates, supplier prices, transport costs, interest rates.
– Model low/high demand, price shocks, supply disruptions and worst/best case scenarios.
– Identify the break‑even volume where make cost = buy cost.
Step 5 — Incorporate qualitative and strategic factors
– Core competency: Does the activity differentiate you in market or protect proprietary IP? If yes, favor making or tight control.
– Capacity and flexibility: Do you have idle capacity or would outsourcing free up constrained resources for higher‑value activities?
– Quality control and lead times: Can suppliers meet required quality and response time consistently?
– Risk and resilience: Assess supplier reliability, geopolitical exposure, single‑source risk, and supply chain visibility.
– Innovation and partner capabilities: Can a supplier deliver process innovation, R&D or scale faster than you?
– Organizational impact: Consider workforce, union issues, morale, regulatory or PR implications.
Step 6 — Supplier evaluation and contracting (if buying)
– Conduct supplier audits: quality systems, financial health, capacity, lead times, contingency plans.
– Negotiate service levels (SLAs), price escalation clauses, minimum/maximum commitments, IP protections, penalties and exit terms.
– Consider multi‑sourcing, second‑source options, or strategic partnerships.
Step 7 — Pilot, implement and track
– Pilot production or phased ramp to validate assumptions before full conversion.
– Establish KPIs: unit cost, on‑time delivery, defect rate, lead time, order fill rate, total landed cost, inventory turns.
– Define governance: who manages supplier relations, change control, and escalation.
Step 8 — Reassess on a cadence and on triggers
– Set periodic reviews (e.g., quarterly/annually) and event triggers (supplier failure, major cost shifts, demand changes, new tech).
– Be ready to reshore/insource or change suppliers if conditions warrant.
(Sources: Investopedia; Strategy&)
2. Factors to consider when choosing to make or buy
Quantitative drivers
– Economies of scale and volume forecasts: higher volumes favor investing in in‑house capacity.
– Comparative unit costs and break‑even volumes.
– Capital availability and payback period.
Qualitative drivers
– Strategic importance and differentiation: keep mission‑critical or differentiating activities in‑house.
– Quality, IP protection and confidentiality.
– Speed to market and flexibility.
– Supplier ecosystem and long‑term partnership potential.
– Labor skill availability and management bandwidth.
– Regulatory, security and sustainability considerations.
Risk and resilience
– Single supplier dependency vs. multiple suppliers.
– Geopolitical risk, tariffs and trade policy.
– Logistics disruptions and lead‑time variability.
– Supplier financial stability.
(Source: Investopedia)
Fast fact
A rigorous make‑or‑buy decision is rarely about the lowest quoted supplier price alone; total cost of ownership and strategic considerations often change the preferred option. (Source: Investopedia)
3. Procurement, outsourcing, insourcing and reshoring — short definitions
– Procurement: Strategic process of acquiring goods and services at scale, including supplier selection, contract management and supplier relationship management. Procurement is broader than transactional purchasing. (Source: Investopedia)
– Outsourcing: Hiring another firm to supply products or services previously done internally; often used to access lower costs, scale, or capabilities. Offshoring refers to outsourcing to other countries. (Source: Investopedia)
– Insourcing: Bringing work back in‑house that was previously outsourced, commonly done to regain control, develop skills, or protect IP. (Source: Investopedia)
– Reshoring (onshoring/inshoring): Returning production to the company’s home country from overseas suppliers, often motivated by rising overseas costs, supply chain resilience and desire for control. (Source: Reshoring Initiative)
4. Practical checklist for decision makers
Before deciding:
– Define product specs, demand forecast and time horizon.
– Build TCO models for both options and identify break‑even volumes.
– Include transition costs and sunk costs only where relevant (do not double‑count).
– Run sensitivity scenarios.
If choosing to make:
– Confirm capital budgeting, ROI and payback.
– Plan workforce training, quality systems and certification.
– Prepare contingency plans if volumes fluctuate.
If choosing to buy:
– Prequalify and audit suppliers.
– Negotiate long‑term vs. spot contracts carefully (price locks vs. flexibility).
– Include SLAs, penalties, IP clauses and exit terms.
– Consider multiple suppliers to reduce single‑source risk.
Ongoing governance:
– Monitor KPIs and supplier health.
– Schedule periodic strategic reviews and refresh sensitivity analysis.
– Maintain an option to reverse (insource/reshore) if conditions change.
5. When to reassess a past make‑or‑buy choice
Reevaluate if you see:
– Major demand increases or decreases that change the economics.
– Supplier bankruptcy, severe quality/livelihood issues, or persistent contract breaches.
– Significant cost changes: labor, transport, tariffs, raw materials.
– New technology enabling cheaper or faster in‑house production.
– Strategic shift: new products, desire to protect IP, or pursue vertical integration.
– Regulatory or geopolitical changes.
(Sources: Investopedia; Reshoring Initiative)
6. KPIs and metrics to monitor post‑decision
– Total landed cost per unit and trend over time.
– On‑time delivery and lead time variability.
– Defect rate and returns.
– Inventory days of supply and inventory carrying cost.
– Supplier capacity utilization and financial health indicators.
– Contract compliance and number of supply disruptions.
Example calculation (simple)
– Annual demand: 100,000 units
– Make: fixed cost $500,000/year; variable cost $2/unit
Make unit cost = (500,000/100,000) + 2 = $7/unit
– Buy: supplier price $8/unit; inbound costs $0.50/unit
Buy unit cost = 8 + 0.5 = $8.50/unit
– Conclusion: Making is cheaper at current demand. But run sensitivity: if demand drops to 50,000 units, make unit cost = (500,000/50,000)+2 = $12/unit → buying becomes cheaper.
The bottom line
A robust make‑or‑buy decision combines disciplined total‑cost modeling, scenario analysis, and careful assessment of strategic, operational and risk factors. Quantitative analysis may identify the financially cheaper option today, but qualitative considerations — such as protecting core capabilities, supplier resilience, or future strategic options — often change the final decision. Reassess decisions when demand, costs, technology or supplier circumstances change to keep operations aligned with strategy and risk tolerance.
(Sources: Investopedia; Strategy&; Reshoring Initiative)
References and further reading
– Investopedia. “Make‑or‑Buy Decision.”
– Strategy&. “Make or Buy: Three Pillars of Sound Decision Making.” (Strategy&/PwC practice piece)
– Reshoring Initiative. “Why Reshore?” /
– Build a downloadable spreadsheet template to compare make vs buy with sensitivity analysis.
– Walk through a worked example with your actual cost data and demand forecast.
Which would you prefer?