How to Set Up Inventory Tracking for a Small Business

Build an inventory system that tracks costs, quantities, and margins with the right tools and processes for your business size.

1. Choose your tracking method by inventory value. Businesses with under $25,000 in inventory can use spreadsheets or basic POS systems. Above $25,000, move to dedicated inventory software that integrates with your accounting system. Above $100,000, you need real-time perpetual tracking with barcode scanning.
2. Set up your cost accounting method. Pick FIFO (first-in, first-out) for most businesses — it matches physical flow and provides conservative margins during inflation. Use weighted average cost only if you have commoditized products with frequent price changes. Specific identification works for high-value, unique items.
3. Establish reorder points for each SKU. Calculate reorder point as: (average daily sales × lead time in days) + safety stock. Set safety stock at 25-50% of lead time demand for A-class items, 10-25% for B-class. Review quarterly and adjust based on actual stockout costs.
4. Create receiving and cycle counting procedures. Count 20-25% of SKUs monthly on a rotating basis, prioritizing high-value and fast-moving items. Record all receipts immediately with purchase prices. Investigate variances above $100 or 5% of item value, whichever is greater.
5. Track key inventory metrics monthly. Monitor inventory turnover (COGS ÷ average inventory), gross margin by category, and days sales outstanding. Target 6-12 turns annually for most retail businesses, 4-8 for wholesale. Flag slow-moving items that haven't sold in 90-180 days.
6. Integrate with accounting and sales systems. Sync inventory data with your accounting software daily to maintain accurate COGS and balance sheet values. Connect to POS or e-commerce platforms for real-time sales deductions. Run month-end inventory valuation reports for financial statements.