How to Record Monthly CDN and Bandwidth Costs as Cost of Revenue
Recording monthly content delivery network and data transfer charges as direct costs of serving customers.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Cost of Revenue — CDN / Bandwidth | Expense (+) | 1,200.00 | - |
| Accounts Payable / Cloud Provider | Liability (+) | - | 1,200.00 |
💡 Accountant's Note
CDN and bandwidth are direct costs of serving customers and belong in Cost of Revenue. They scale with usage and directly affect the gross margin percentage.
Practitioner & Systems Framework
💻 ERP Architecture
CDN costs (Cloudflare, AWS CloudFront, Fastly) are entirely driven by customer traffic and are 100% Cost of Revenue — no allocation needed. Track bandwidth cost per GB and monitor trends as a unit cost KPI. A sudden spike in bandwidth cost without a corresponding revenue increase indicates either inefficient data transfer, unauthorized use, or a DDoS attack.
⚠️ Audit Flags
Auditors verify that CDN and bandwidth costs are classified as Cost of Revenue, not G&A or R&D. They may also assess whether any CDN costs relate to serving the company's own marketing website (which would be S&M) vs. the production SaaS platform (Cost of Revenue) — a distinction that matters for accurate gross margin reporting.
📄 Required Documentation
CDN provider invoice with usage detail (GB transferred, requests), cost per GB trend analysis, production vs. marketing website bandwidth split (if applicable), and gross margin impact calculation.
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Expert Analysis by Qusai Ahmad
General Accountant Supervisor & IFRS Specialist
Specialized in SAP GUI automation and Middle Eastern tax compliance. Building digital tools for the next generation of finance leaders.