Timing, Consumption, and Write-Downs, Explained
The question
Explain the three general mechanics that every Module 1 topic reduces to: timing differences, asset consumption, and valuation write-downs. Give one example of each from this module.
General educational practice only. This is not an actual, confidential, leaked, or firm-provided interview question. Check important technical details against primary learning materials.
The answer
Every topic in this module comes down to one of three mechanics. The first is a timing difference between accrual recognition and cash movement, where the balance sheet holds the gap as an asset or a liability until the mismatch closes.
A straightforward example is deferred revenue: a customer prepays for a service, we book a liability, and we recognize the revenue on the income statement later, when we actually deliver the service, not when the cash arrived. The second mechanic is a long-lived asset being consumed over time, where a cash outlay is capitalized and then expensed on a schedule to match the periods the asset helps generate revenue.
Depreciation of PP&E is the clearest instance: we buy equipment, capitalize it, and then allocate that cost over its useful life through depreciation. The third mechanic is a valuation write-down, a non-cash charge that corrects the balance sheet when an asset’s worth falls below its book value.
That bucket includes goodwill impairment, where we take a one-time charge if an acquired business is worth less than we’re carrying it for, with no ongoing amortization schedule. Those three buckets cover every major topic in this module.
Income statement
| Revenue | 1,000 |
| COGS | (600) |
| Gross profit | 400 |
| SG&A | (180) |
| EBITDA | 220 |
| D&A | (40) |
| EBIT | 180 |
| Interest expense | (20) |
| Pre-tax income | 160 |
| Taxes | (40) |
| Net income | 120 |
Also asked as
- State the general accrual-to-cash bridge formula and explain, in words, why each term is added or subtracted.
- Walk through what happens to all three financial statements when a customer prepays $600 for a two-year contract, recognized ratably.
- Why must the balance sheet always balance, no matter how many of this module's mechanics are combined in a single scenario?
- A company reports net income of $150, D&A of $40, an increase in receivables of $20, an increase in deferred revenue of $30, and a decrease in accounts payable of $10. Compute cash flow from operations.
- A LIFO company takes a $25 inventory write-down and also experiences a $40 LIFO liquidation benefit in the same year. How would you normalize reported gross profit, and are both adjustments the same type of item (cash vs. non-cash)?
- A company has an existing deferred tax liability from accelerated depreciation and separately takes a non-deductible goodwill impairment in the same year. Explain why these two items should be modeled completely independently of one another.
- A company collects a $900 two-year prepayment on January 1 and spends $200 of that cash on equipment depreciated over 4 years straight-line, tax rate 25%. Compute Year 1 net income, the Year 1 cash flow from operations, and the deferred revenue balance at year-end.
- In one year, a company recognizes $180 of revenue from an existing deferred revenue balance, records $55 depreciation, sells equipment with a $35 net book value for $50 cash, and takes a $40 non-deductible goodwill impairment. Base operating pre-tax income before these items is $350, tax rate 25% (except the impairment). Compute final net income and cash flow from operations.
- A company has beginning net PP&E of $500, buys $150 of new equipment, records $40 of depreciation, and sells old equipment with a $20 net book value for $32 cash. Separately, its deferred revenue balance goes from $400 to $250 as it recognizes revenue, and it takes a $15 non-deductible goodwill impairment. Base operating pre-tax income before all these items is $300, tax rate 25% except the impairment. Compute ending net PP&E, final net income, and verify your PP&E roll-forward and deferred revenue roll-forward are each internally consistent.
Practice this topic with rubric-grounded grading inside IB Atlas.
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Keep going
- Is goodwill amortized under current US GAAP/IFRS? How is it tested and adjusted over time?
- What is PP&E, and why must its cost be spread over time via depreciation rather than expensed immediately?
- Explain FIFO and LIFO. In a period of rising prices, which method produces higher reported net income, and why?
- What is deferred revenue, which side of the balance sheet does it sit on, and why?
- Guide: Accounting terms study guide
The rest of this topic
Depreciation, write-downs and the tax shield