Classes A, B, C Purchases and Tail Spend: How to Tell Them Apart
Effective procurement management starts with clear segmentation. Understanding the differences between Class A, B, C purchases and Tail Spend helps prioritize resources. This approach cuts costs, boosts performance, and strengthens supplier relationships.
What are class A, B, and C purchases?
Purchases get segmented into three classes based on their value and strategic impact on the business.
Class A: High-impact purchases that make up 10-20% of volume but 70-80% of spend value. They call for advanced strategic management, tough negotiations, and close oversight.
Class B: Mid-tier purchases, roughly 20-30% of volume for 30-50% of spend. They need steady monitoring with defined processes and standards.
Class C: Low-unit-value purchases that can hit 50% of volume but just 10-20% of spend. Focus here is on streamlining, simplifying, and automating to handle them efficiently.
👉 This A/B/C breakdown aligns procurement strategy with value creation and risk levels for each category.
What is Tail Spend and Why separate it out?
Tail Spend covers non-strategic purchases. These are scattered, low-control flows from one-off suppliers that slip through standard processes.
Mastering Tail Spend lets you :
- Cut hidden, unstructured costs.
- Consolidate and streamline all purchasing
- Reduce operational and compliance risks.
👉 Clearly separating Tail Spend from Classes A, B, and C is a game-changer for your procurement team’s overall performance.
How to effectively differentiate Class A, B, C, and Tail Spend
Segment your purchases using these key criteria:
- Financial value
- Transaction volume
- Strategic impact
- Supplier complexity
👉 This classification frees up procurement teams to focus time and resources where they matter most.
Benefits of smart purchase segmentation
Breaking purchases into Classes A, B, C, and Tail Spend is a strategic win for procurement. It sharpens negotiations with key suppliers by zeroing in on high-value flows (Class A). It also streamlines low-value buys (Class C) through automation, freeing teams from routine work. Plus, it tames Tail Spend to curb hidden spending and scattered flows. Overall, it builds supply chain resilience and agility against disruptions.
👉 Adopting this method drives operational efficiency, transparency, and budget control. It uncovers key performance levers for procurement.
To take it further, iSupplier helps optimize and manage Tail Spend effectively, freeing your team for higher-value work. Get in touch with our team!
