Accounts Receivable Increases by $10: Three Statements Interview

"Accounts receivable increases by $10" tests whether you know revenue can hit before cash. It is the twin of deferred revenue, flipped. Interviewers listen for tax assumptions, working capital signs, and whether the balance sheet still balances when cash moves for taxes only.

The short answer

"If AR rises by 10 because we booked a credit sale, we recognized revenue now and will collect cash later. At 0% tax, net income is up 10, the AR increase is a 10 working capital use, cash is flat, AR is up 10, and equity is up 10. At 20% tax, net income is up 8, cash is down 2 after the working capital use, AR is up 10, and equity is up 8. AR growth can mean earnings without cash, and tax can make cash fall even when net income rises."

Base case: sold on credit, cash not collected

Assume you recognized $10 of revenue on account. For the cleanest interview version, use 0% tax first, then add tax if they ask. Announce the tax rate before you walk so they do not interrupt mid-stream.

At 0% tax

At 20% tax (common follow-up)

Revenue +10, taxes +2, NI +8.
CFO: NI +8, AR use of 10, cash change of -2. You owe tax on profit you have not collected.
Balance sheet: AR +10, cash -2, equity +8. Assets up 8, equity up 8.

NI +8
CFO = +8 - 10 = -2
AR +10; Cash -2; Equity +8

AR vs deferred revenue

These two are the classic pair. Get the cash timing backwards and the whole working capital story collapses.

Deferred revenue is not "negative AR." It is a liability for performance still owed. AR is an asset for cash still owed to you. Say that out loud if they ask how the concepts relate.

When cash is collected later

AR falls, cash rises, no new P&L hit if revenue was already booked. CFO shows a working capital source. Students sometimes re-book revenue on collection. Do not. Collection is balance sheet and cash flow only.

What interviewers probe next

1. What if the sale was cash, not credit? Then AR does not rise; cash and revenue move together (tax aside).
2. What if AR rises without new revenue (reclass, slower collections on old sales)? Then you may have no P&L benefit, only a cash timing problem: collections delayed are still a WC use relative to a faster-collections base.
3. How does this show up in an LBO? Rising AR days consume free cash flow even when EBITDA looks fine. See Working Capital in an LBO.
4. How is this different from inventory +10? Inventory is usually a cash purchase or production capitalization without immediate revenue. AR +10 in the classic drill is tied to revenue recognition.

Mini intuition with numbers

Think of a company that books $10 of credit sales at 20% tax. Book income says you are richer by $8. Cash says you paid $2 of tax and still wait on $10 from the customer, so cash is lighter by $2 while AR is heavier by $10. That tension is the whole point of the question.

If next period you collect the $10, cash rises $10, AR falls $10, and there is no new net income from that collection. Across both periods, total cash in from the customer is $10, total tax cash out is $2, and cumulative NI from the sale is $8. The first period alone looked worse on cash than on earnings.

Traps

1. Forgetting tax and then getting surprised when they say "assume 20%"
2. Reducing cash in the 0% case (wrong: cash is flat)
3. Booking revenue again when AR is collected
4. Confusing AR up with deferred revenue up
5. Saying "CFO falls by 10" without starting from NI (signs get messy)

30-second verbal (20% tax)

"If AR increases by 10 because we booked revenue not yet collected, net income is up 8 after 20% tax. On the cash flow statement that 8 is offset by a 10 working capital use, so cash is down 2. AR is up 10 and equity is up 8. When we collect later, AR falls, cash rises, and there is no new P&L."

Linked drills

1. Inventory +10
2. Accrued expense +10
3. Deferred revenue
4. Depreciation +10
5. Negative working capital for the float side of the story

Practice on Project Catalyst until the 0% and 20% walks are automatic.