Table of Contents
- How Inventory Affects Cash Flow
- Key Inventory Metrics to Track
- 7 Inventory Strategies to Unlock Cash Flow
- 1. ABC Analysis
- 2. Just-in-Time (JIT) Ordering
- 3. Economic Order Quantity (EOQ)
- 4. Safety Stock Optimization
- 3. Liquidate Dead Stock
- 6. Improve Demand Forecasting
- 7. Negotiate Vendor Terms
- Inventory + Technology
- Download the Inventory Cash Flow Calculator
- FAQ
- How much cash is tied up in inventory?
- Should I drop slow-moving products?
- What's the biggest inventory mistake?
For product-based businesses, inventory is often the second-largest use of cash after payroll. Too much inventory ties up working capital. Too little inventory loses sales. The key is finding the balance that maximizes cash flow without sacrificing revenue.
Part of The Cash Flow Optimization Playbook.
How Inventory Affects Cash Flow
Every dollar in inventory is a dollar not available for:
- Payroll
- Marketing
- Debt payments
- Opportunities
- Emergencies
Yet inventory is necessary. The goal is to hold the minimum inventory required to meet demand — no more, no less.
Key Inventory Metrics to Track
| Metric | Formula | Target |
|---|---|---|
| Inventory Turnover | COGS / Average Inventory | 6–12x/year |
| Days Inventory Outstanding | Average Inventory / COGS × 365 | < 60 days |
| Inventory Carrying Cost | Storage + Insurance + Obsolescence + Capital Cost | 20–30% of inventory value/year |
| Stockout Rate | Stockouts / Total Orders | < 2% |
7 Inventory Strategies to Unlock Cash Flow
1. ABC Analysis
Not all inventory is equal. Classify by value and velocity:
- A items: 20% of SKUs, 80% of revenue — tight control, frequent review
- B items: 30% of SKUs, 15% of revenue — moderate control
- C items: 50% of SKUs, 5% of revenue — minimal control, bulk ordering
2. Just-in-Time (JIT) Ordering
Order inventory to arrive just before it's needed, not weeks in advance. Reduces carrying costs and obsolescence risk. Requires reliable suppliers and accurate demand forecasting.
3. Economic Order Quantity (EOQ)
Calculate the optimal order size that minimizes total inventory costs (ordering + carrying). Formula: √(2DS/H) where D=annual demand, S=ordering cost, H=holding cost per unit.
4. Safety Stock Optimization
Hold enough buffer to prevent stockouts, but not so much that cash is trapped. Formula: (Max daily usage × Max lead time) − (Average daily usage × Average lead time).
3. Liquidate Dead Stock
Inventory that hasn't sold in 6–12 months is dead. Options:
- Bundle with fast-movers
- Run a clearance sale
- Sell to liquidators
- Donate for tax write-off
6. Improve Demand Forecasting
Use historical sales data, seasonality patterns, and market trends. Tools like Inventory Planner, Stocky, or even Excel with moving averages help.
7. Negotiate Vendor Terms
Consignment arrangements, extended payment terms, or return rights shift inventory risk to vendors and preserve your cash.
Inventory + Technology
Modern inventory management software automates most of these strategies. See our recommendations: The Best Apps and Tools to Stay on Top of Cash Flow
Download the Inventory Cash Flow Calculator
Calculate your optimal inventory levels, turnover targets, and cash flow impact.
FAQ
How much cash is tied up in inventory?
Calculate: Average Inventory Value × Carrying Cost %. Most businesses have 20–30% of inventory value in carrying costs annually.
Should I drop slow-moving products?
Not necessarily. Try bundling, repositioning, or discounting first. Drop only if they consistently lose money.
What's the biggest inventory mistake?
Overordering to "get the volume discount." The discount rarely covers the carrying cost of excess inventory.