Inventory Accounting Methods in Canada

Learn FIFO, weighted average cost, inventory valuation, and stock reconciliation techniques used by Canadian businesses to track COGS and manage inventory effectively.

Professional workspace with accounting spreadsheet, calculator, and financial documents on organized desk

Essential Guides

Comprehensive articles covering core inventory accounting concepts and Canadian business practices.

Financial analyst reviewing inventory cost data on computer screen with charts and spreadsheets visible

FIFO Method: First In First Out Inventory Tracking

Understand how the FIFO method works for inventory valuation, when it’s most beneficial, and how Canadian companies implement it for accurate cost of goods sold calculations.

7 min Beginner February 2026

Close-up of inventory spreadsheet showing weighted average cost calculations and product valuation data

Weighted Average Cost Method Explained

Discover how the weighted average cost method smooths inventory valuation fluctuations and why many Canadian retailers prefer this approach for consistent financial reporting.

9 min Intermediate February 2026

Warehouse inventory shelves with organized products and barcode labels, stock taking in progress

Stock Reconciliation: Physical Counts and Variance Analysis

Learn how to conduct effective physical inventory counts, identify discrepancies between records and actual stock, and resolve variances to maintain accurate financial statements.

10 min Intermediate February 2026

Business owner reviewing cost of goods sold report with calculator and financial analysis documents

Cost of Goods Sold: Calculation and CRA Compliance

Master COGS calculations for Canadian tax purposes, understand inventory adjustments, and ensure your business meets Canada Revenue Agency requirements for accurate reporting.

11 min Advanced March 2026

FIFO (First In, First Out)

Assumes oldest inventory costs are recorded first. Works well in inflationary environments and matches actual product flow. Most Canadian businesses use this method for clarity and simplicity.

Weighted Average Cost

Calculates a weighted average cost for all units. Provides consistent valuations and reduces impact of price fluctuations. Popular with retailers managing diverse product inventories.

Specific Identification

Tracks individual item costs directly. Ideal for high-value products or specialized goods. Requires detailed record-keeping but offers precise COGS tracking.

LIFO (Last In, First Out)

Assumes most recent costs are recorded first. While useful in declining markets, LIFO isn’t permitted for Canadian tax purposes and IFRS reporting.

Inventory Valuation Fundamentals

Proper inventory valuation is critical for accurate financial reporting. Here’s what you need to know about Canadian practices.

Lower of Cost and Market Rule

Canadian GAAP requires inventory to be valued at the lower of cost and market value. This protects against overstating assets and ensures conservative financial statements. You’ll write down inventory when market value drops below historical cost.

Obsolescence and Shrinkage

Regular assessment for obsolete or damaged inventory is essential. Shrinkage from theft, spoilage, or damage must be tracked and written off. Many businesses discover 2-5% inventory variance during physical counts — this needs proper documentation.

CRA Requirements and Documentation

The Canada Revenue Agency requires detailed inventory records, including purchase dates, quantities, unit costs, and valuation methods. Maintain supporting documentation for at least six years. Inconsistent methods between years can trigger audit concerns.