Inventory Turnover and Cash Management for Import Businesses

In an import business, your largest asset is usually your inventory. The speed at which you convert that inventory into sales — and sales into cash — determines whether your business thrives or suffocates under the weight of unsold stock.

Understanding Inventory Turnover

The Formula

Inventory Turnover = Cost of Goods Sold / Average Inventory Value

A turnover ratio of 6 means you sell through your entire inventory six times per year, or roughly every two months. A ratio of 2 means inventory sits for an average of six months.

What's a Good Turnover Rate?

It varies by product category:

• Fast-moving consumer goods: 8-12
• General merchandise: 4-8
• Specialty or seasonal products: 2-4
• Luxury or high-value items: 1-3

Days Inventory Outstanding (DIO)

DIO = 365 / Inventory Turnover

This tells you, on average, how many days an item sits in your warehouse before it's sold. Lower is generally better (provided you don't stockout).

Why Inventory Turnover Matters More for Importers

Domestic businesses can reorder quickly when stock runs low. Importers face 8-16 week lead times, meaning:

• You must hold more safety stock — increasing the capital tied up in inventory
• Overstocking is expensive — warehousing costs accumulate over months
• Understocking means lost sales — you can't restock quickly
• Obsolescence risk is higher — trends change while your container is on the water

The Cash Conversion Cycle

The cash conversion cycle (CCC) measures how long your cash is tied up from when you pay your supplier to when you collect from your customer:

CCC = Days Inventory Outstanding + Days Sales Outstanding - Days Payable Outstanding

Import Business Example:

• You pay your supplier 30 days before goods ship (30% deposit)
• Goods are in transit for 35 days
• Goods sit in warehouse for 45 days before selling
• Amazon pays you 14 days after the sale
• Total CCC: approximately 90-120 days

That means every pound of working capital is locked up for 3-4 months. If you invest $50,000 in inventory, you won't see that money back for a quarter.

Strategies to Improve Turnover

1. Right-Size Your Orders

Don't order 6 months of stock just because it's cheaper per unit. Calculate the true cost of carrying excess inventory:

Carrying cost = Unit cost x Carrying rate x Time

Typical carrying rates include:

• Storage fees: 1-3% of inventory value per month
• Cost of capital: 0.5-1.5% per month
• Insurance: 0.1-0.3% per month
• Obsolescence/damage: 0.5-1% per month
• Total: 2-6% per month, or 25-70% annually

A 20% saving on unit price is quickly eroded if the inventory sits for 6 months at a 30% annual carrying cost.

2. Use Data-Driven Reorder Points

Calculate your reorder point based on: Reorder Point = (Daily Sales Rate × Lead Time in Days) + Safety Stock

Example:

• Average daily sales: 10 units
• Import lead time: 70 days (order to warehouse)
• Safety stock: 30 days × 10 units = 300 units
• Reorder point: (10 × 70) + 300 = 1,000 units

When inventory drops to 1,000 units, place your next order.

3. Increase Sales Velocity

Faster sales improve turnover without changing order sizes:

• Optimise marketplace listings for higher conversion
• Use promotions and deals strategically
• Expand to additional sales channels
• Improve advertising efficiency

4. Reduce Lead Times

Shorter lead times mean you can order more frequently in smaller quantities:

• Pre-produce stock at your supplier's facility
• Use air freight for smaller top-up orders
• Source from closer countries (Turkey instead of China, for example)
• Build relationships that give you production priority

5. Liquidate Slow Movers Early

Don't wait until stock becomes obsolete. Identify slow-moving inventory at 90 days and take action:

• Markdown pricing to accelerate sales
• Bundle with popular products
• Sell through discount channels
• Donate for tax benefit (where applicable)

Amazon FBA Inventory Considerations

Amazon adds specific inventory management pressures:

• Inventory Performance Index (IPI) — Score drops below 400 and you face storage limits
• Long-term storage fees — Charged for items stored over 365 days ($6.90 per cubic foot or $0.15 per unit, whichever is greater)
• Stranded inventory — Items in FBA without active listings still incur storage costs

Monitor your FBA inventory age and plan removals or liquidations before long-term fees apply. Factor these potential costs into your FBA profitability calculations.

Tracking and Tools

Monitor these metrics monthly:

• Inventory turnover ratio by product
• Days inventory outstanding by product
• Cash conversion cycle
• Sell-through rate
• Overstock and understock incidents

Use LandedCost.io's shipment tracking to maintain accurate cost records per shipment, which feeds directly into your inventory valuation and turnover calculations.

The goal is a balanced inventory strategy: enough stock to avoid stockouts, but not so much that your cash is trapped in a warehouse.