Capitalized Borrowing Cost — Network Build (IAS 23)
Capitalizing interest on loans specifically used to finance a qualifying network construction project.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Assets Under Construction (Network) | Asset (+) | 850,000.00 | - |
| Interest Expense (Capitalized Portion) | Expense (-) | - | 850,000.00 |
💡 Accountant's Note
Under IAS 23, borrowing costs directly attributable to a qualifying asset must be capitalized. For telecoms building large network infrastructure over extended periods, this can be a significant amount reducing reported interest expense.
Practitioner & Systems Framework
💻 ERP Architecture
Capitalised borrowing costs are calculated by the treasury and finance team based on either specific borrowings (where the loan was taken out specifically for the qualifying asset) or the weighted average borrowing rate applied to the average AUC balance (for general borrowings). The capitalised amount is posted monthly to the AUC account as a reduction of interest expense. Capitalisation ceases when construction is substantially complete. The calculation is maintained in a treasury model, and the monthly journal is posted as a top-side entry in the ERP. The qualifying period (from commencement of expenditure to substantial completion) is tracked per project.
⚠️ Audit Flags
Auditors test whether the qualifying asset criteria are met (substantial period of time to bring to intended use) and whether the construction activities were ongoing during the capitalisation period. Test the capitalisation rate — for specific borrowings, the rate must be the actual borrowing rate; for general borrowings, the weighted average rate must be calculated correctly and include only borrowings outstanding during the period (not new debt raised after the capitalisation period ends). Confirm that capitalisation ceases promptly on commissioning. Test that capitalised borrowing costs are included in the asset's carrying value for impairment testing.
📄 Required Documentation
IAS 23 capitalisation policy, qualifying asset identification, specific or general borrowing rate calculation, monthly capitalisation journal with calculation workings, project timeline (commencement and substantial completion dates), suspension periods (if construction was suspended), and borrowings register used for the weighted average rate calculation.
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