Net working capital (NWC) is total current assets minus total current liabilities, both read off one balance sheet at one date. It is a dollar amount rather than a ratio, and under the standard that defines it, it is the same figure as working capital. Accounting Research Bulletin No. 43, the pronouncement that defines the term, gives net working capital as an alternative name for working capital and sets both equal to the excess of current assets over current liabilities (ARB No. 43, Chapter 3A, paragraph 3).
The same paragraph says what the figure is meant to show, which is the relatively liquid portion of total enterprise capital, a margin or buffer for meeting obligations within the ordinary operating cycle of the business (ARB No. 43, Chapter 3A, paragraph 3).
The Formula
Both inputs are subtotals, so the arithmetic is one step.
net working capital = total current assets - total current liabilitiesWhat the answer is worth depends entirely on the classification underneath it. Whether a balance belongs in the current block turns on the normal operating cycle of the business rather than on the calendar alone, and what that block takes in and leaves out is set out in current assets and current liabilities. Get either subtotal wrong and the figure is wrong by exactly that amount, because there is no second input to absorb the error.
A Worked Example
Say a client’s classified balance sheet at year end carries the two current subtotals below.
Total current assets 410,000
Total current liabilities 265,000
net working capital 410,000 - 265,000 = 145,000The result is positive, so the current assets the sheet reports exceed the current liabilities it reports by that amount. It carries no timing information at all. Positive is not the same as sufficient and negative is not the same as distress, because the subtraction says nothing about which week any of those balances actually moves.
Two Definitions Travel Under One Name
Working capital and net working capital are one figure under the bulletin. A second convention uses the same phrase for a narrower calculation, and that one comes from deal and valuation practice rather than from the standard.
In that version only the operating accounts count, so cash and short-term debt come out of both sides before the subtraction runs. A research paper prepared for the Canadian Institute of Chartered Business Valuators states the reason for the exclusion, which is that cash and short-term operating debt simply finance or are financed by working capital (CBV Institute, Putting the Pin in Net Working Capital, 2013). The same paper describes the practice in private deals, where funded bank debt in a share sale may be required to remain with the seller or be discharged before closing, and net cash on closing often stays with the seller (CBV Institute, Putting the Pin in Net Working Capital, 2013).
One balance sheet therefore produces two answers.
Total current assets 410,000
of which cash 60,000
Total current liabilities 265,000
of which current portion of debt 35,000
reported subtotals 410,000 - 265,000 = 145,000
operating accounts (410,000 - 60,000) - (265,000 - 35,000) = 120,000So the figure has to travel with the definition that produced it. A covenant, a valuation model and a purchase agreement can each use the words net working capital and each mean a different subtraction off the same page.
Where a CPA Firm Meets the Number
The figure turns up in three places in a firm’s work, and each one asks something different of it.
The first is the close. The figure needs the two subtotals a classified balance sheet already carries, which is why the work is the classification and not the sum, and what makes a sheet classified at all is set out in classified balance sheet. A current portion of long-term debt left unreclassified moves the answer with nothing else on the page changing.
The second is covenant compliance testing. A credit agreement can write a minimum working capital into its terms, and the figure tested is whichever subtraction the agreement defines, which is this one wherever it defines none. What sits inside a lender’s covenant package is covered in covenants, and what happens when the agreement supplies no definition of its own is worked through in quick ratio.
The third is the working capital true-up in a deal, and it is the one that turns a bookkeeping subtotal into cash changing hands. A purchase agreement can fix a reference amount and settle the gap between that amount and the closing figure. In the paper’s worked template the reference amount is a trailing twelve-month average of net working capital with cash, short-term debt, provisions and contingencies, and taxes payable excluded, and the accounts that do count are listed on a schedule to the agreement so the closing calculation is done on the same basis (CBV Institute, Putting the Pin in Net Working Capital, 2013). Where the accounts swing with the season, a closing sheet can sit well above or below that average, and settling against the reference amount rather than against whatever the closing sheet shows is what keeps the swing from becoming a windfall for one side.
What Net Working Capital Is Confused With
The current ratio and the quick ratio are built from the same two subtotals, but they divide where this measure subtracts, so they return a multiple and this returns dollars. Two businesses can report the same current ratio and hold very different amounts of working capital.
Cash conversion cycle reads the same working capital in days rather than dollars, and it is built from turnover figures rather than from the two subtotals.
Net assets is the same style of subtraction run across the whole sheet, total assets minus total liabilities. Restricting it to the current classification is what turns it from a measure of residual ownership into a measure of short-term liquidity.
Common Questions
The question mixes two measures. Net working capital is stated in dollars, so a ratio built on it is either the current ratio or working capital set against sales, and neither has a single correct level. What counts as appropriate turns on the industry sector and on the size of the business, which is why the comparison is made against industry statistical compilations such as the RMA Annual Statement Studies, though the dispersion inside a single sector is wide enough that those tables are a starting point for inquiry rather than a benchmark (CBV Institute, Putting the Pin in Net Working Capital, 2013).
Neither direction is good on its own, because the same balances that make the figure large are the ones tying up cash. A level above what the business actually needs to run is treated as an excess that carries real value in a transaction rather than as a strength, since the seller who transfers it is handing the purchaser something the purchase price may not have accounted for (CBV Institute, Putting the Pin in Net Working Capital, 2013). A figure below zero means current liabilities exceed current assets at that date, and what it implies depends on which accounts produced it and when they move. A working capital deficiency is one of the adverse conditions a going concern assessment weighs, and it is evidence rather than a verdict, a distinction set out in solvency.
Accountably places trained offshore accountants and tax preparers inside US CPA and EA firms, and a firm can put a block of its own close work through a trial task before any client file depends on it.
