Inventory Management for Small Business: Prevent Dead Stock and Free Cash

Dead inventory is frozen money. Every dollar in slow-moving stock is a dollar not in the bank. Here's a practical method for small business inventory management - no expensive ERP, just discipline and the right tools.

Effective inventory management rests on 5 pillars: ABC classification (80/20 of products), reorder points by product, quarterly review of slow movers, separation between active and seasonal inventory, and weekly measurement of inventory turnover.

Why inventory is the biggest hidden cash problem

Most retail and product businesses have 30-50% of their working capital tied up in inventory. If $50K is in inventory, that's $50K not in the bank. Plus storage costs, insurance, and risk of expiration/damage.

Inventory reduction by 20% releases significant cash without affecting sales - if done correctly.

ABC classification

A products: 20% of items generating 80% of revenue. Always in stock, weekly monitoring.

B products: 30% of items generating 15% of revenue. Standard reorder points, monthly monitoring.

C products: 50% of items generating 5% of revenue. Order only when needed, quarterly review for elimination.

Without this classification, you treat all products equally - which is wrong. C products eat shelf space that should belong to A.

Reorder points

For every A and B product, set a reorder point: when stock reaches X units, reorder. Calculation: average weekly consumption × lead time + safety stock. Without reorder points, you order in panic when out of stock - more expensive and slower.

Quarterly slow-mover review

Every quarter: list products that haven't moved 90+ days. Action: clearance sale (30-50% off), return to supplier (if possible), or write-off. Holding dead inventory isn't 'maybe it'll sell' - it's frozen cash.

Inventory turnover - the key metric

Calculation: annual revenue ÷ average inventory value. Healthy retail: 6-12 turns/year. Food: 12-24. Specialty: 4-8. Below benchmark = too much inventory.

Tools - what's needed

Small business (under 200 SKUs): Google Sheets + manual count. Medium (200-1,000): QuickBooks Inventory or Cin7. Large: NetSuite, Zoho Inventory. Start simple - upgrade when SKU count justifies.

Common mistakes

1. No inventory count - relying on register data. Physical count quarterly is mandatory. 2. Bulk buying for 'discount' - the discount doesn't justify months of frozen capital. 3. No expiration tracking - perishable products that expire become 100% loss.