COGS Tracking for Amazon Sellers

Master COGS tracking for Amazon FBA: what to include, tracking methods, optimization strategies, and automation. Accurate cost tracking for better profitability.

Antoine·CEO at Nova AnalyticsLinkedIn

Scaled Amazon data infrastructure for Europe's largest seller.

Oct 25, 2025·13 min·3,200 words

Cost of Goods Sold (COGS) is the single most important number in your Amazon P&L statement. Get it wrong, and you'll overprice products, underprice winners, or completely misunderstand your true profitability. Yet most Amazon sellers struggle with COGS tracking because of price fluctuations, currency changes, and multi-component landed costs.

This guide covers everything you need to master COGS tracking: what to include in your calculations, different tracking methods, period-based management, and proven optimization strategies that reduce costs by 15-30%.

What Is COGS and Why It Matters

COGS Definition:

Cost of Goods Sold is the total direct cost to acquire and deliver your product to Amazon's warehouse, ready for sale. It includes product cost, international shipping, customs, freight forwarding, inspection, prep, and domestic freight to FBA.

✓ What's Included in COGS

Product cost from manufacturer/supplier
International shipping (sea freight or air)
Customs duties and import taxes
Freight forwarder fees
Inspection/QC services
Prep, labeling, packaging
Freight to Amazon (domestic)

✗ What's NOT in COGS

Amazon referral fees (selling expense)
FBA fulfillment fees (selling expense)
Storage fees (selling expense)
PPC/advertising (marketing expense)
Software subscriptions (operating expense)
Salaries/contractors (operating expense)
Product photography (operating expense)

Why this matters: A 1% error in COGS becomes a 1-2% error in your contribution margin calculation. At $1M revenue, that's $10K-$20K in misallocated profit that affects pricing, inventory, and growth decisions.

Track COGS Automatically with Period-Based Management

Nova's COGS manager handles price changes, currency fluctuations, and multi-supplier tracking automatically. Set it once, get accurate margins forever.

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COGS Tracking for Amazon Sellers

What Is COGS and Why It Matters

✓ What's Included in COGS

✗ What's NOT in COGS

Track COGS Automatically with Period-Based Management

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What Is COGS and Why It Matters

✓ What's Included in COGS

✗ What's NOT in COGS

Track COGS Automatically with Period-Based Management