Corporate Accounting and Auditing · Accounts of Banking, Electricity and Insurance Companies
Accounts of Electricity Companies: Double Account System
Updated 10 October 2026 · Fact-checked
Electricity companies keep accounts under the double account system. It splits the books into a revenue account, a net revenue account, a capital account and a general balance sheet. Clear profit is compared with the reasonable return on the capital base, and the difference decides the appropriation. Solve by finding capital base, return, clear profit and then the transfers.
Understand Accounts of Electricity Companies
An electricity company spends huge sums on plant, lines and substations that last for decades. It also earns revenue every year. If both sit in one balance sheet, you cannot easily see how much capital was raised, how it was spent, and what the business earned. The double account system solves this by keeping two sets of accounts, not by changing double entry.
The first set deals with capital. The Capital Account shows money raised (shares, debentures, loans) on the receipts side and money spent on fixed assets and works in progress on the expenditure side. The balance is carried to the General Balance Sheet. The second set deals with income. The Revenue Account shows operating income and expenses, and the Net Revenue Account and appropriation account show what is left and how it is used.
The system is not the same as the double entry system. Double entry is the bookkeeping rule that every transaction has a debit and a credit. The double account system is a presentation format: it separates capital and revenue statements. Both are used together. A common exam question asks for this difference.
The syllabus also tests regulated profit. Clear profit is the profit that counts for regulation after deducting items such as interest on loans and debentures and certain appropriations. Reasonable return is the permitted return on the capital base. The usual textbook rule is capital base multiplied by (bank rate + a stated percentage). If clear profit goes beyond the reasonable return, the excess is dealt with as the question directs, for example by transfer to a tariff and dividend control reserve or sharing with consumers. If it falls short, there is no such transfer.
The Act text supplied for this page covers banking and insurance, not electricity companies. So this page gives no electricity section numbers. In the exam, use the rates, capital base items and sharing ratios stated in the question, and state your assumption in one line if something is missing.
Key rules to remember
- Reasonable return
- Reasonable return = Capital base × (Bank rate + stated percentage) ÷ 100
- Use the bank rate and the extra percentage given in the question. Textbooks commonly add 2% to the bank rate, but follow the question.
- Clear profit
- Clear profit = Net profit before interest − interest on debentures and loans − contingencies reserve appropriation (and any other deduction the question states)
- Check what the question lists as deductions. Do not deduct dividends, which are appropriations from clear profit.
- Excess or shortfall over reasonable return
- Excess = Clear profit − Reasonable return (if positive)
- Excess is shared or transferred as the question directs. If clear profit is lower, there is no excess.
- Capital Account balance
- Balance = Total capital receipts − Total capital expenditure
- A credit balance appears on the liabilities side of the General Balance Sheet. A debit balance appears on the assets side.
- Structure of the double account system
- Revenue Account → Net Revenue Account → Appropriation; Capital Account → General Balance Sheet
- Revenue items never go into the Capital Account and capital items never go into the Revenue Account.
How to solve Accounts of Electricity Companies questions
Use this order for any electricity company question. It keeps the working visible so you earn step marks even if one figure is wrong.
- 1Read the data and sort every item into capital (receipts and expenditure), revenue (income and expenses) or general balance sheet items.
- 2Prepare the Capital Account first: list capital receipts and capital expenditure, and find the balance to carry to the General Balance Sheet.
- 3Prepare the Revenue Account: show generation, transmission and distribution income against operating expenses, including depreciation, and find the operating profit.
- 4Prepare the Net Revenue Account: add other income, deduct interest on debentures and loans, and find the balance available.
- 5Compute the capital base (from the items the question gives), then the reasonable return using bank rate plus the stated percentage.
- 6Find clear profit as the question defines it and compare it with the reasonable return. Show the excess or shortfall and apply the stated transfers to reserves.
- 7Appropriate the remaining profit to dividends and reserves, and prepare the General Balance Sheet using the capital account balance and the other balances.
- 8Write assumptions and workings as notes under the answer.
Quickest way: Four-line approach for clear profit questions
When to use it: Use when the question asks only for clear profit, reasonable return or the excess, with no full final accounts.
- Write the capital base from the question and multiply by the rate (bank rate + stated percentage).
- Start from net profit, deduct interest on loans and debentures, then the reserve appropriation named in the question. This is clear profit.
- Subtract reasonable return from clear profit. A positive result is the excess.
- Apply the stated sharing or transfer to the excess and show the entry in one line.
Common mistakes in Accounts of Electricity Companies
Treating the double account system as a different kind of bookkeeping from double entry.
The names sound alike, so students think one replaces the other.
Fix: Say that double entry is the debit-credit rule, while the double account system is a format that separates capital and revenue statements. Both are used together.
Putting capital expenditure such as plant purchase into the Revenue Account, or depreciation into the Capital Account.
Students classify by the item name rather than its nature.
Fix: Tag every item as capital or revenue before you start. Fixed asset purchases go to the Capital Account. Depreciation is a revenue charge.
Deducting dividends or the excess transfer while computing clear profit.
Students confuse deductions for clear profit with appropriations after it.
Fix: Deduct only the items the question lists for clear profit, such as interest on debentures and loans and the contingencies reserve. Dividends come later as appropriation.
Using the wrong rate for reasonable return, for example the bank rate alone.
Students skip the extra percentage or forget which rate applies.
Fix: Write the rate as bank rate + stated percentage on the first line, then multiply by the capital base.
Showing the Capital Account balance on the wrong side of the General Balance Sheet.
Students copy the side on which the balance appears in the Capital Account itself.
Fix: Receipts exceeding expenditure leave a credit balance, shown on the liabilities side. Expenditure exceeding receipts leaves a debit balance, shown on the assets side.
Forgetting to show the statutory or required reserve transfers in the appropriation.
Students stop once they reach the clear profit figure.
Fix: After comparing clear profit and reasonable return, always write the transfer entries and the balance carried forward.
Worked examples
Example 1
An electricity company has a capital base of ₹8,00,000 hundreds? No: ₹8,00,00,000. The bank rate is 6% and reasonable return is bank rate plus 2%. Net profit before interest is ₹1,10,00,000. Interest on debentures is ₹20,00,000 and the appropriation to contingencies reserve is ₹5,00,000. Clear profit is net profit before interest less these two items. Find the reasonable return, clear profit and the excess.
Show the solution
- Rate of reasonable return = 6% + 2% = 8%.
- Reasonable return = ₹8,00,00,000 × 8% = ₹64,00,000.
- Clear profit = ₹1,10,00,000 − ₹20,00,000 − ₹5,00,000 = ₹85,00,000.
- Excess = ₹85,00,000 − ₹64,00,000 = ₹21,00,000.
- The excess of ₹21,00,000 is dealt with as the question directs, for example by transfer to a tariff and dividend control reserve.
Answer: Reasonable return ₹64,00,000; clear profit ₹85,00,000; excess ₹21,00,000.
Example 2
For an electricity company, capital receipts during the year were: equity shares ₹50,00,000 and debentures ₹20,00,000. Capital expenditure was: land ₹8,00,000, buildings ₹12,00,000 and plant ₹40,00,000. Prepare the Capital Account balance and say where it is shown.
Show the solution
- Total capital receipts = ₹50,00,000 + ₹20,00,000 = ₹70,00,000.
- Total capital expenditure = ₹8,00,000 + ₹12,00,000 + ₹40,00,000 = ₹60,00,000.
- Balance = ₹70,00,000 − ₹60,00,000 = ₹10,00,000, a credit balance because receipts exceed expenditure.
- Carry it to the General Balance Sheet. A credit balance goes on the liabilities side.
Answer: The Capital Account shows a credit balance of ₹10,00,000, carried to the liabilities side of the General Balance Sheet.
Exam tips
- Draw the format first for the Capital Account, Revenue Account and Net Revenue Account. Marks are given for correct layout.
- In MCQs, check whether the question asks for clear profit, reasonable return or the excess. Each has a different value.
- Always write the rate line and the clear profit line separately so that the examiner can award step marks.
- Read the question for any stated sharing ratio or reserve rate before you appropriate the excess. Do not use a rule from memory.
- For a difference question, give three points: purpose, statements involved and relation to debit-credit rules.
Practice questions from Accounts of Banking, Electricity and Insurance Companies
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Accounts of Electricity Companies: frequently asked questions
What is the double account system in electricity companies?
It is a presentation method with two sets of accounts. The Capital Account records money raised and spent on fixed assets, while the Revenue Account, Net Revenue Account and appropriation show income and profit. The balance of the Capital Account goes to the General Balance Sheet.
How do you calculate clear profit for an electricity company?
Start from net profit before interest. Deduct interest on debentures and loans, the contingencies reserve appropriation, and any other item the question names. The result is clear profit, which you compare with the reasonable return.
What is the difference between the double account system and the double entry system?
Double entry is the bookkeeping rule that each transaction has equal debit and credit. The double account system is a format that keeps capital and revenue statements apart. A company can use both together.
How is reasonable return calculated?
Multiply the capital base by the rate, which is bank rate plus the extra percentage stated in the question. Textbooks often use bank rate plus 2%, but use the rate in your question paper.