AFUDC - Allowance for Funds Used During Construction (Equity Component)
Recording the equity component of Allowance for Funds Used During Construction (AFUDC) — the notional cost of equity capital tied up in plant construction — which capitalizes the carrying cost of construction into the asset.
| Account Name | Type | Debit ($) | Credit ($) |
|---|---|---|---|
| Construction Work in Progress (AFUDC - Equity Added to Cost) | Asset (+) | 8,500,000.00 | - |
| AFUDC - Equity (Other Income, Below-the-Line) | Income (+) | - | 8,500,000.00 |
💡 Accountant's Note
AFUDC (Allowance for Funds Used During Construction) is one of the most uniquely regulated utility accounting concepts. During plant construction (which may take 5–10 years for large projects), the utility is tying up capital without yet earning revenue from the asset. AFUDC represents the cost of that capital — both debt (actual interest cost) and equity (a notional 'return on equity'). AFUDC is capitalized into the plant cost — increasing CWIP and recognizing income. The equity AFUDC is credited to 'Other Income' (a non-operating income line) and the debt AFUDC reduces interest expense. When the plant enters service, the higher cost basis (including accumulated AFUDC) forms the rate base, allowing the utility to earn a return on the total cost.
Practitioner & Systems Framework
💻 ERP Architecture
The AFUDC rate is determined by FERC using a formula based on the utility's WACC (weighted average cost of capital) as determined in the most recent rate case. FERC publishes the allowable AFUDC rate. The AFUDC rate is applied monthly to the average CWIP balance for that period. FERC Form 1 separately reports AFUDC by equity and debt components.
⚠️ Audit Flags
Auditors verify the AFUDC rate is the FERC-authorized rate (not a higher rate management preferred). The CWIP balance subject to AFUDC must be verified — externally borrowed funds specifically for a project are excluded from the AFUDC equity calculation (they earn debt AFUDC at the actual interest rate instead). Large CWIP balances over long construction periods result in substantial AFUDC — a significant source of utility income during construction.
📄 Required Documentation
FERC-authorized AFUDC rate (most recent rate case or FERC's composite), monthly CWIP balance by project, AFUDC calculation by debt and equity components, FERC Form 1 AFUDC reporting, project capitalization policy.
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