Accounting terms IB interviewers expect you to know

Accounting rounds don't test whether you memorized the three statements. They test whether you can push one event through all three without dropping a number, and a handful of terms carry almost every version of that test: deferred revenue, deferred taxes, working capital, and diluted shares. Each one exists because cash and accounting recognition happen at different times, which is the single idea underneath most accounting interview questions. This guide covers what each term means and the follow-up it usually drags in behind it.

Deferred revenue

Deferred revenue is cash a company has collected for work it hasn't delivered yet. It sits on the balance sheet as a liability, because the company owes either the product or the money back. When the work gets delivered, revenue is finally recognized and the liability burns down. Nothing about the second step involves cash; the cash already came in.

Interviewers reach for this term because it separates people who understand accrual accounting from people who memorized journal entries. A software company collecting annual subscriptions up front can show growing cash flow while reported revenue lags, and the deferred revenue balance is the bridge between the two. The definition and statement walk are on what is deferred revenue, and the cash flow logic extends to the rest of the working capital lines in the AR, inventory, AP, and deferred revenue cash flow question.

The advanced follow-up lives in M&A: acquired deferred revenue classically gets written down to fair value at closing, so revenue the target already sold can vanish from the combined company's income statement. That mechanism has its own page.

Deferred tax assets and liabilities

A deferred tax liability means the company has paid less cash tax so far than its book tax expense implies, and will make it up later. A deferred tax asset is the reverse: tax already paid, or benefits already banked, that will reduce cash taxes in the future. Both exist because the tax code and GAAP measure income differently, and most of the differences are timing that eventually reverses.

The workhorse example is accelerated tax depreciation. The tax code lets a company depreciate equipment faster than its books do, so early on it pays less cash tax than the income statement shows, and the gap accrues as a DTL. The wrinkle interviewers like: a company that keeps buying new equipment keeps creating new differences faster than old ones reverse, so the DTL balance can grow indefinitely and act like an interest-free loan from the government. The full walkthrough is on how accelerated depreciation creates a DTL.

On the asset side, the classic source is net operating losses, and the follow-up is the valuation allowance: a DTA is only worth something if there will be future taxable income to use it against, so a company that keeps losing money has to book an allowance against its own tax asset. That test, and how releasing the allowance flows through earnings, is covered in the valuation allowance question.

The valuation-flavored follow-up is whether DTLs count as debt in the enterprise value bridge. There are two defensible answers, and interviewers care that you know both, which is exactly how the DTL and EV bridge page presents it.

Working capital, and the negative working capital question

Net working capital is operating current assets minus operating current liabilities: receivables plus inventory, less payables and deferred revenue, with cash and debt excluded because they're financing items rather than operations. It measures how much money is tied up in simply running the business day to day.

The interview question that matters here is whether negative working capital is a bad sign, and the answer most candidates get wrong is that it usually isn't. Negative NWC means suppliers and customers are funding the company's operations: customers prepay, inventory turns fast, and suppliers wait to get paid. Subscription businesses and large retailers run this way on purpose, and it's interest-free financing. It only becomes a warning when the structure can reverse on the company, like suppliers tightening terms on a shaky retailer or a subscription business facing churn and refunds. The full answer is on is negative net working capital a bad sign.

Diluted shares and the treasury stock method

Diluted shares count what the share count would be if every in-the-money claim on new stock got exercised. The treasury stock method handles options and warrants: assume they're exercised, take the cash the company would receive, and assume it buys back shares at the current price. The difference between shares issued and shares repurchased is the net dilution. Out-of-the-money options are excluded entirely, because exercising them would hand the company more per share than the stock is worth, and convertibles get their own treatment under the if-converted method.

Equity value should always be built on diluted shares, which is why this shows up as a mechanical speed test in interviews: strike prices, share price, do the arithmetic. A worked example with options, warrants, and a convertible together is on the treasury stock method walkthrough.

How these actually come up

The pattern is an event pushed through the statements with one of these terms buried in it. "A customer prepays $120 for a year of service, walk me through the statements at signing and after one month" is deferred revenue. "Depreciation is $10 higher for tax than for books, what happens?" is a DTL. "Receivables go up $20, what happens to cash?" is working capital. The interviewer isn't checking vocabulary; they're checking that the vocabulary doesn't slow you down while you track the numbers. Each of these has a standalone question with a full answer in the accounting question bank, phrased the way it gets asked.

FAQ

Is deferred revenue debt? No. It's an operating liability, an obligation to deliver work rather than repay money. It behaves debt-like only in deal negotiations, where buyers sometimes argue acquired deferred revenue represents an obligation they're assuming, which is part of why the M&A treatment gets its own interview question.

Why does accelerated depreciation create a liability and not an asset? Because the company underpays cash taxes relative to book expense in the early years. A benefit taken now that reverses later is something owed, so it accrues as a DTL. If book depreciation ran faster than tax, the same logic would produce a DTA.

Is negative working capital a red flag? Usually the opposite: it means customers and suppliers finance the operations, which is efficient. It turns into a risk only when the financing can be pulled, like tightening supplier terms or refundable prepayments at a churning subscription business.

When do you use basic versus diluted shares? Use diluted whenever you're computing equity value or per-share metrics that feed valuation. Basic shares understate the claims on the company, and interviewers treat defaulting to basic as a real error, not a rounding choice.