The Income Statement, Cash & Accruals
Financial Performance & Management Control - TUHH Institute of Management Accounting & Simulation, Hamburg · part of my Technology Management MBA · study notes for revision.
Chapter 2 gave us the balance sheet: a photo of what the firm owns and owes at one instant. This chapter adds the film that runs between two photos - the income statement. It answers a question a single balance sheet cannot: why did owner’s equity move from one date to the next, and was the business actually any good at what it does?
The second half of the chapter is the idea that makes financial accounting genuinely different from watching a bank balance: accruals. A company has no natural end date, so we chop its life into artificial years and quarters and then have to decide which revenues and expenses belong in which slice. Cash timing is a poor guide for that. Revenue recognition and the matching principle are the two rules that do the slicing, and they are exactly what makes profit and cash flow disagree in any single period.
1 · Income: the growth in wealth over a period
Section titled “1 · Income: the growth in wealth over a period”Income simply means the increase in wealth over a stretch of time. That immediately raises a question the balance sheet never had to face: which stretch of time? Three conventions exist side by side:
- Calendar year - 1 January to 31 December.
- Fiscal year - any twelve-month stretch: it can start whenever the company chooses and ends 365 days later. Many firms pick a year-end that avoids their busiest season so the books can be closed in peace. Either way, this is the period behind the annual financial report.
- Interim periods - weekly, monthly or quarterly slices inside the year. The quarterly report (three months) is the most familiar one. The shorter the slice, the sharper the timing questions of section 7 become.
2 · Revenues, expenses, gains, losses and retained earnings
Section titled “2 · Revenues, expenses, gains, losses and retained earnings”Four building blocks carry the whole statement. Note the phrase from operations in the first two: equity can also rise when the owner injects money, but that is a contribution, never income.
- An increase in owner’s equity that arises from operations
- Typically net assets received from customers in return for goods or services delivered
- e.g. fees for services, rent collected from tenants
- A decrease in owner’s equity that arises from operations
- Net assets given up or used up while delivering to customers
- e.g. rent, salaries, materials consumed, depreciation
- Also move equity, but come from one-off events outside the routine business
- e.g. selling a property above or below its book value
- Shown separately so a reader can tell what is repeatable from what is not
- All the income earned since the business began, minus all dividends paid out
- The slice of equity the firm has built itself, as opposed to the capital owners put in
Income
Income (profit, earnings) = Revenues - Expenses for one reporting period
Retained earnings
Retained earnings = all income to date - all dividends to date since inception
Equity owner contributions (common stock) + retained earnings
3 · Classifying transactions: does it touch equity?
Section titled “3 · Classifying transactions: does it touch equity?”The practical skill behind the definitions is sorting real events. The slides use a small law office: a lawyer opens her own practice on 1 July and the first month brings seven transactions (the full table sits in the worked example below). For every event, the same three questions decide where it goes:
- Which assets or liabilities change? Every transaction moves at least one balance-sheet line.
- Does owner’s equity move at all? If the event only shuffles assets and liabilities (buy equipment on credit, borrow from the bank), equity is untouched and nothing reaches the income statement.
- If equity moves, did it come from operations? Money the owner invests raises equity but is capital, not revenue. Fees earned are revenue; rent and salaries are expenses - these are the lines of the income statement.
Two of these deserve a second look because they preview the rest of the chapter. The 2,000 of services on account is revenue although no cash has arrived: the client now owes a legally enforceable amount, so a receivable is booked and equity rises. And the 3,000 of equipment is not an expense even though it will be paid for: it is an asset that will serve the office for years, so its cost reaches the income statement later, in slices.
4 · The income statement is the sub-ledger of equity
Section titled “4 · The income statement is the sub-ledger of equity”The income statement reports the flows of revenues and expenses over a period (a year, a quarter, a month). Its balance - net income, positive or negative - is nothing other than the change in equity that came from operating. That is why the slides call it the sub-account or sub-ledger of owner’s equity: the balance sheet shows one equity number; the income statement opens that number up and explains the sources of profit and loss behind it.
Three lessons the slides draw from this relationship:
- The income statement gives the reasons for a change in equity - where profit or loss came from.
- It measures the change in wealth between two discrete points of time, which is exactly what income was defined to be in section 1.
- It is built on accruals, so its revenues and expenses are not the same as cash in and cash out (sections 7 and 8).
5 · The functional P&L structure
Section titled “5 · The functional P&L structure”Real income statements are not a random list of revenues and expenses. The common functional layout groups costs by the job they did and walks down from sales to the bottom line in stages:
The waterfall has three distinct sections:
- Operating section everything from revenues to EBIT - producing and selling goods and services, including the functional cost blocks (cost of sales, selling and marketing, general and administrative, research and development, other operating items).
- Finance section the financial result - finance expenses and finance revenues such as interest.
- Tax section corporate income taxes - what goes to the tax authorities.
The slides illustrate the layout with the published statement of the BASF group; it is worth looking at a real one once so the labels stop being abstract.
6 · Balance sheet vs income statement: stock vs flow
Section titled “6 · Balance sheet vs income statement: stock vs flow”The cleanest way to hold the two statements together is a roll-forward of equity:
Equity at start + increases - decreases = Equity at endThe operating part
Revenues - Expenses = Net income which appears as a thereof line inside equity
On the balance sheet side you see non-current (fixed) assets and current assets (thereof cash and cash equivalents) against owner’s equity (thereof net income) and liabilities. On the income statement side you see only the flows that produced that “thereof net income”.
| Balance sheet | Income statement | |
|---|---|---|
| Nature | A stock - a snapshot | A flow - a film |
| Time reference | One point in time (e.g. 31 December) | A period (e.g. the year ended 31 December) |
| Question answered | What do we own and owe right now? | How did equity change through operations, and why? |
| Link | Equity contains the net income of the period | Net income is the equity increase (or decrease) from operations |
Because the income statement covers the gap between two balance sheets, shorter statements chain together:
7 · Cash and accruals: accounting in a multi-period world
Section titled “7 · Cash and accruals: accounting in a multi-period world”Now the deeper question. Picture the whole life of a firm: cash is invested at the start, more cash goes in and comes out at many later points, and there is no pre-determined end to the story - accountants call this the going concern assumption. Later decisions depend on earlier results (a feedback loop), and owners, lenders and managers all demand periodic figures, above all a performance figure. So accounting makes an artificial cut of the firm’s life into annual (or quarterly) periods.
There are two honest answers to that question, and financial reporting uses both:
- Record cash flows directly, when they happen
- Works like a normal wallet: cash in minus cash out
- Looks erratic (a machine bought this year, nothing next year), but it is real and hard to argue with
- It has its own statement: the cash flow statement
- The income statement is built on this idea
- Revenues are not the same as cash inflows; expenses are not the same as cash outflows
- When cash moves is not the point. The time-based delimitation dominates: what is the real economic increase or decrease of resources in this period? (the matching principle)
- Only over all periods together does the sum of all net incomes equal the sum of all cash flows
Put bluntly: accounting uses accruals to transform cash flows into economically “correct” earnings, and that transformation is precisely what produces the gap between cash flow and earnings in any one year. The two accrual principles that do the transforming are next.
8 · The two accrual principles: revenue recognition and matching
Section titled “8 · The two accrual principles: revenue recognition and matching”Revenue recognition - when has income been earned?
Section titled “Revenue recognition - when has income been earned?”The convention is called realisation, and everyone agrees on one thing first: realisation does not mean receiving the cash. Revenue is recognised earlier - when the earnings process is substantially complete, which in practice means the moment a legal claim (a receivable) can be booked. Under IFRS 15 “Revenue” (which replaced IAS 18) the wording is: recognise revenue when, or as, the entity satisfies a performance obligation - when control of the goods or service has passed to the customer.
The slides make this concrete with a manufacturing batch:
Matching - which efforts belong to which benefits?
Section titled “Matching - which efforts belong to which benefits?”Match efforts to the benefits they generate. Two working rules follow:
- Capitalise expenditure that benefits future periods, and expense it as the benefits are realised. Materials bought today sit in inventory until they are used; a machine sits in fixed assets and is depreciated over its useful life.
- Recognise liabilities when efforts that benefit the current period will only be paid in cash later - salaries earned but unpaid, interest owed but not yet transferred.
Both rules deliberately break the link between cash and expense, which is exactly why cash flow and earnings differ. The materials example in the worked example below shows it in numbers: over three years the firm pays out 55,000 for materials but expenses 50,000, with the other 5,000 waiting in inventory.
Worked example
Section titled “Worked example”(a) Matching in numbers - the materials example
Section titled “(a) Matching in numbers - the materials example”A producer buys materials for 40,000 in 2006 and for 15,000 in 2008, nothing in 2007. Material used up in production: 30,000 in 2006, 10,000 in 2007, 10,000 in 2008.
| Statement | 2006 | 2007 | 2008 | Three-year total |
|---|---|---|---|---|
| Cash flow statement (operating cash out) | -40,000 | 0 | -15,000 | -55,000 |
| Income statement (material expense) | -30,000 | -10,000 | -10,000 | -50,000 |
| Balance sheet (inventory at year end) | 10,000 (Δ +10,000) | 0 (Δ -10,000) | 5,000 (Δ +5,000) | 5,000 still on the shelf |
Read it year by year. In 2006 cash out is 40,000 but only 30,000 was consumed, so the expense is 30,000 and 10,000 is capitalised as inventory. In 2007 no cash leaves at all, yet 10,000 of expense appears - it comes straight out of last year’s inventory. In 2008 15,000 is bought, 10,000 used, 5,000 remains. The totals reconcile: cash out 55,000 = expenses 50,000 + closing inventory 5,000. When that last 5,000 is used up in a later year, total expense will finally equal total cash - the “only over all periods” rule in action.
(b) The law-office transactions classified
Section titled “(b) The law-office transactions classified”| # | Transaction (July) | Affects equity? | Which accounts move |
|---|---|---|---|
| 1 | Owner invests 10,000 cash | Yes, up 10,000 - capital contribution, not revenue | Cash +10,000; owner’s capital +10,000 |
| 2 | Pays 800 cash for July rent | Yes, down 800 - expense | Cash -800; equity (rent expense) -800 |
| 3 | Buys office equipment on account, 3,000 | No | Equipment +3,000; accounts payable +3,000 |
| 4 | Legal services for cash, 1,500 | Yes, up 1,500 - revenue | Cash +1,500; equity (service revenue) +1,500 |
| 5 | Borrows 700 from the bank on a note | No | Cash +700; notes payable +700 |
| 6 | Legal services on account, 2,000 | Yes, up 2,000 - revenue, although no cash yet | Accounts receivable +2,000; equity (service revenue) +2,000 |
| 7 | Pays salaries 500, utilities 300, telephone 100 | Yes, down 900 - expenses | Cash -900; equity (expenses) -900 |
Adding it up: revenues 1,500 + 2,000 = 3,500; expenses 800 + 500 + 300 + 100 = 1,700; net income for July = 1,800. Equity ends at 10,000 + 1,800 = 11,800. The closing balance sheet checks: cash 10,500 + receivables 2,000 + equipment 3,000 = 15,500 = payables 3,000 + note 700 + equity 11,800. And notice the accrual gap already: operating cash was 1,500 - 800 - 900 = minus 200, while profit was plus 1,800 - the whole difference is the 2,000 receivable.
Case corner
Section titled “Case corner”The Accounting Monopoly team - profitable, and nearly out of cash. The course’s Monopoly spreadsheet gives one team’s statements after a round of play:
| Income statement | Cash flow statement | ||
|---|---|---|---|
| Rental revenue - land (Oxford Street 52, Bond Street 28) | 80 | Cash flow from operating activities | +865 |
| Rental revenue - houses and hotels (Park Lane) | 350 | Cash flow from investing activities | -2,120 |
| Salary revenue | 800 | Cash flow from financing activities | +100 |
| Investment revenue - utilities / railroads | 40 / 50 | Net change in cash | -1,155 |
| Total revenues | 1,320 | ||
| Rent 125, tax 200, repairs 80, interest 0, depreciation 40, misc 60 | |||
| Total expenses | 505 | ||
| Gains and losses | 0 | ||
| Earnings | 815 |
The team made 815 of profit - and its cash fell by 1,155, from the opening 1,500 to just 345. Both numbers are correct; they answer different questions.
- The investing outflow of 2,120 (land 1,370, a railroad 200, a utility 150, two houses 400) is not an expense. Under the matching principle these are capitalised assets that will earn rent in future rounds. Only the houses lose value now, as depreciation of 40; land is never depreciated.
- Operating cash (865) is actually higher than earnings (815): depreciation of 40 is an expense that never leaves the wallet, and a further 10 sits in interest payable - owed but not yet paid out.
- Financing added just 100, a mortgage on Kings Cross Station.
- On the balance sheet the profit is all still there: retained earnings 815 (no dividends), equity 1,500 + 815 = 2,315, total assets 2,425. The wealth has simply changed shape - from cash into streets and houses.
That is the chapter in one board game: income measures the growth in wealth; cash flow measures the movement of money. A team can be richer and poorer at the same time, depending on which statement you read.
Key terms
Section titled “Key terms”| Term | What it means in plain words |
|---|---|
| Income (profit, earnings) | The increase in wealth over a period; revenues minus expenses |
| Fiscal year | Any twelve-month reporting year, starting on the date the company chooses |
| Interim period | A slice inside the year - week, month or quarter - with its own statements |
| Revenue | Increase in owner’s equity from operations, usually net assets received from customers |
| Expense | Decrease in owner’s equity from operations, net assets used up to serve customers |
| Gains and losses | Equity changes from unusual or infrequent events, shown apart from routine revenue and expense |
| Retained earnings | All income since the business started minus all dividends paid; the self-built part of equity |
| Functional P&L | Income statement layout grouped by function: cost of sales, selling, admin, R&D, then EBIT, financial result, tax |
| EBIT | Earnings before interest and taxes; the end of the operating section |
| Going concern | The assumption that the firm has no pre-determined end, which forces artificial reporting periods |
| Cash accounting | Recording cash in and cash out when they happen; the wallet view, home of the cash flow statement |
| Accrual accounting | Assigning revenues and expenses to the period of the real economic change, regardless of cash timing |
| Revenue recognition (realisation) | Book revenue when the performance obligation is satisfied and control passes, i.e. when a receivable exists - not when cash arrives (IFRS 15) |
| Matching principle | Put efforts in the same period as the benefits they create: capitalise future-benefit spending, expense it as used, accrue liabilities for unpaid current-period efforts |
Test yourself
Section titled “Test yourself”- Define revenues and expenses in one sentence each, and explain why a gain on selling a building is reported separately from revenue.
- In the law-office example, which of the seven July transactions change owner’s equity? Compute July net income and closing equity, and explain why the owner’s 10,000 investment is not part of net income.
- A firm buys materials for 40,000 in year 1 and uses 30,000 of them; in year 2 it buys nothing and uses 10,000. State what the cash flow statement, the income statement and the balance sheet show in each year.
- In the manufacturing timeline (12 Jan materials, 19 Feb processing, 3 Apr finished goods, 10 May order accepted, 17 May delivery and invoice, 5 Jun payment), on which date is revenue recognised, on what principle, and why not on 10 May or 5 Jun?
- “Only over the whole life of the firm do total income and total cash flow coincide.” Explain this using the three-year materials example (cash out 55,000, expenses 50,000).
- The Monopoly team reports earnings of 815 but a net cash change of minus 1,155. Reconcile the two in words using the three cash flow sections.
Revision summary
Section titled “Revision summary”Next: IFRS: Who Sets the Rules, and How Items Get In → - the rulebook behind recognition and measurement.