Simple accounting question - Inventory

Okay, so from what I understand, changes in working capital is used to reconcile the net income (after adding back non-cash expenses) into cash from operations. For example, if Accounts Receivable goes up that means people have been purchasing on credit and thus cash goes down. Conversely if AR goes down, that means people have been paying off dues and thus cash goes up.

but what I DONT understand is inventory.

if inventory goes up (from the balance sheet), then cash drops. This sorta makes sense because that means more inventory was purchased. But if inventory decreases, then cash should go up.

That's what I don't understand. I've read that it means inventory has been sold, but isn't that already reflected in revenue, then reflected in net income, and thus already reflected in the cash flow statement at the top with net income?

I guess it's the same for if inventory goes up. isn't it already accounted for in COGS--> net income ---> cash flow statement.

Am I misunderstanding something here??

7 Comments
 

From what I remember, a sale of merchandise requires two separate entries: CREDIT sales, DEBIT cash (alternatively, you would do AR/AP entries instead if they aren't paying cash) CREDIT inventory, DEBIT COGS You can work out from there how your reasoning is faulty under those assumptions. The proper offset for inventory isn't cash, it's COGS.

Someone feel free to correct me if I'm completely wrong :/

Currently: future neurologist, current psychotherapist Previously: investor relations (top consulting firm), M&A consulting (Big 4), M&A banking (MM)
 
chicandtoughnessFrom what I remember, a sale of merchandise requires two separate entries: CREDIT sales, DEBIT cash (alternatively, you would do AR/AP entries instead if they aren't paying cash) CREDIT inventory, DEBIT COGS You can work out from there how your reasoning is faulty under those assumptions. The proper offset for inventory isn't cash, it's COGS.

Someone feel free to correct me if I'm completely wrong :/

This is correct.

I didn't say it was your fault, I said I was blaming you.
 

Basically if inventory goes down, that was reflected in the expense and lowered your net income, however, you didn’t spend cash because you already had the asset. So you sell 5 bucks of inventory for 10 bucks, pretend there’s no other factors, you have a net income of 5 bucks, inventory went down 5 bucks, but cash flow is positive 10.

 
Best Response
erwannabe

but what I DONT understand is inventory.

if inventory goes up (from the balance sheet), then cash drops. This sorta makes sense because that means more inventory was purchased. But if inventory decreases, then cash should go up.

That's what I don't understand. I've read that it means inventory has been sold, but isn't that already reflected in revenue, then reflected in net income, and thus already reflected in the cash flow statement at the top with net income?

I guess it's the same for if inventory goes up. isn't it already accounted for in COGS--> net income ---> cash flow statement.

Am I misunderstanding something here??

So there are two parts when accounting for (1) buying inventory and (2) selling inventory.

(1) when you purchase inventory for $10 cash, you working capital increases by $10 and thus you have a decrease in cash flow of $10. (NO change to the income statement)

(2) when you sell that inventory (assume you are paid $20 cash), your revenue is $20. you COGS for that sale is the $10 of inventory you already paid cash for, but you are recording it as an expense now because it has been sold. Say there is no tax - so net income is $10. In your cash flow, the decrease in working capital of $10 increases your cash flow by $10 for a total positive cash flow of $20.

Logically, this should make sense because in part (2) you really did receive $20 in cash. The cash you purchased for the inventory sold was already accounted for in part (1).

 

^part 1 is wrong. working capital stays the same because a purchase of 10 dollars worth of inventory is just converting one current asset to another, and therefore total current assets stay the same.

 

Earum provident consequatur occaecati non odit amet repellat. Occaecati sunt deserunt deserunt dolores.

"After you work on Wall Street it’s a choice, would you rather work at McDonalds or on the sell-side? I would choose McDonalds over the sell-side.” - David Tepper

Career Advancement Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.9%
  • JPMorgan 01 98.3%
  • Guggenheim Partners 01 97.7%
  • Morgan Stanley 07 97.1%

Overall Employee Satisfaction

June 2026 Investment Banking

  • Moelis & Company No 99.4%
  • Morgan Stanley 02 98.8%
  • Evercore 01 98.3%
  • BMO Capital Markets 12 97.7%
  • Banco Santander 01 97.1%

Professional Growth Opportunities

June 2026 Investment Banking

  • Evercore 01 99.4%
  • Moelis & Company 01 98.9%
  • Morgan Stanley 05 98.3%
  • JPMorgan No 97.7%
  • Goldman Sachs 02 97.1%

Total Avg Compensation

June 2026 Investment Banking

  • Vice President (14) $434
  • Associates (44) $258
  • 3rd+ Year Analyst (8) $210
  • 2nd Year Analyst (22) $179
  • Intern/Summer Associate (13) $156
  • 1st Year Analyst (79) $150
  • Intern/Summer Analyst (73) $101
notes
16 IB Interviews Notes

“... there’s no excuse to not take advantage of the resources out there available to you. Best value for your $ are the...”

Leaderboard

1
redever's picture
redever
99.2
2
kanon's picture
kanon
99.0
3
Secyh62's picture
Secyh62
99.0
4
BankonBanking's picture
BankonBanking
99.0
5
dosk17's picture
dosk17
98.9
6
CompBanker's picture
CompBanker
98.9
7
GameTheory's picture
GameTheory
98.9
8
DrApeman's picture
DrApeman
98.9
9
Betsy Massar's picture
Betsy Massar
98.9
10
Linda Abraham's picture
Linda Abraham
98.8
success
From 10 rejections to 1 dream investment banking internship

“... I believe it was the single biggest reason why I ended up with an offer...”