Working capital and the gap before you get paid

Positive working capital does not mean every approaching bill is covered on its due date. The balance can include stock that has not sold and customer invoices that will not be paid until later. The useful next question is when those assets become spendable money.

Working capital is current assets minus current liabilities. The SEC’s financial-statements guide sets out that calculation. For a business with an ordinary one-year operating cycle, current assets include cash, receivables and inventory expected to turn into cash within that period; current liabilities include obligations due within it. The SEC’s balance-sheet explanation describes those categories.

That year-long window can conceal a serious gap next week.

$20,000 of working capital, $8,000 in the bank

Consider an invented workshop on April 1. It has $8,000 of cash, $22,000 owed by customers for completed work and $10,000 of inventory. Its current assets total $40,000. It owes suppliers $12,000, employees $6,000 for work already done, and a $2,000 loan installment consisting entirely of principal. These are its only current liabilities, totaling $20,000.

Working capital is $20,000. But all $20,000 of obligations comes due before the $22,000 customer payment. The inventory will remain unsold through April. Assume no other receipts or payments during the month.

The negative entries show an unfunded requirement, not permission to overdraw an account. Without a change, the workshop cannot make the first payment in full. Its largest gap before the customer pays is $12,000. Looking only at April’s closing $10,000 would miss the point at which the schedule fails.

If the workshop obtained $12,000 of temporary funding before the payments and repaid it after collecting, April would end with that same $10,000. The funding makes the dates possible; it does not create another $12,000 of earnings. If that funding is a short-term loan, both cash and current liabilities initially rise by $12,000, leaving working capital unchanged.

Change the date, change the decision.

Suppose the customer instead pays on April 3. The workshop can meet the stated schedule from its own cash. The work, price and costs have not changed. Neither has its starting working capital. What changes is whether someone must supply money before collection.

Now suppose the customer pays half on April 3 and half on April 25. Cash rises to $19,000, then falls to $7,000 after the supplier payment and $1,000 after payroll. The April 15 installment still creates a $1,000 gap. An earlier partial receipt helps considerably without fully solving the schedule.

These comparisons are useful because they name the unresolved amount. A general instruction to collect faster might sound decisive while leaving the operation unable to make a particular payment. A collection date, amount and responsible person give the company something concrete to verify.

The asset needs a route to cash.

The $22,000 receivable is more useful on this calendar if the customer agrees with the invoice, has what it needs to approve payment and is able to pay. An invoice waiting for a disputed delivery to be resolved belongs in a different scenario from an approved payment already being processed. The face amounts alone do not express that difference.

The inventory needs its own route. Selling it may require finding a customer, completing further work, paying delivery costs or accepting a lower price. Treating its full carrying amount as next week’s cash skips those steps. Conversely, selling stock already needed for another order can create a new obligation while solving the old one.

The turnaround in Infinite Upside makes this timing problem tangible. Valuable vehicles could help fund the operation only through completed sales and loan payoffs. Continuing bills did not wait for every change in the business to take effect. The book’s later broker arrangements return to the same distinction between an amount due and an amount collected.

Inventory turnover is not cash collection

A turnover figure can describe stock moving into sales without establishing that customers have paid. OpenStax's inventory-turnover calculation divides cost of goods sold during a period by average inventory measured at cost.

Consider a separate invented retailer over one complete year. It begins with 100 units, buys 700 and sells 600, leaving 200 at the end. Every unit has a total recorded inventory cost of $20, and there are no other inventory changes. Opening inventory therefore costs $2,000 and closing inventory $4,000. The 600 units sold carry $12,000 of recorded cost.

Using the mean of the two dated balances gives average inventory of $3,000: $2,000 plus $4,000, divided by two. Dividing the year's $12,000 cost of goods sold by $3,000 gives inventory turnover of four times for that year.

The balances describe stock held at two dates; cost of goods sold covers the period between them. This two-point average does not establish that $3,000 was held every day. More frequent balances could reveal movement between those dates. The ratio does not identify which items remain unsold.

Suppose the 600 units sell for $30 each, giving recorded sales revenue of $18,000, with no returns or discounts. Dividing that retail revenue by $3,000 would give six, but it would mix selling prices with an inventory balance at cost. It is not the cost-based inventory-turnover calculation above.

Now follow payment. The retailer begins with no customer balance owed. By year-end it has collected $9,000 from these sales, with no other customer adjustments. Customers still owe $9,000. If customers had instead paid the full $18,000 by year-end, turnover would still be four under the same stock and cost figures.

If a report says inventory turned four times into cash, rewrite it as two statements: how turnover was calculated, and how much customers actually paid. Keep the remaining customer balance and its expected payment date in the calendar. The inventory ratio has not supplied that receipt.

A cash cycle is not a payment date

The cash conversion cycle combines three estimates: inventory days plus customer-collection days minus supplier-payment days. ACCA's working-capital explanation sets out that relationship.

Take a separate invented retailer over one complete 90-day reporting period. It makes $30,000 of credit sales, buys $24,000 of merchandise on credit and records $18,000 of cost of goods sold. There are no other inventory or customer/supplier-account adjustments.

Opening and closing inventory costs are $3,000 and $9,000; customer receivables are $8,000 and $12,000; trade payables are $3,000 and $5,000. Use the mean of each opening and closing pair, then the matching flow over those same 90 days:

• Inventory: $6,000 average inventory divided by ($18,000 cost of goods sold ÷ 90) gives 30 days.
• Customer collection: $10,000 average receivables divided by ($30,000 credit sales ÷ 90) gives 30 days.
• Supplier payment: $4,000 average payables divided by ($24,000 credit purchases ÷ 90) gives 15 days.

The estimated cash cycle is 30 + 30 − 15 = 45 days. Here the supplier calculation uses the supplied credit purchases. ACCA's ratio guide notes that cost of sales is sometimes used as an approximation. Stock has grown by $6,000. Substituting $18,000 would produce 20 supplier days and a 40-day cycle, a different calculation.

These two-point averages do not track each item's time on the shelf or each invoice's payment. Neither 45 nor 40 days supplies a bank balance or an individual due date. Before comparing reported cycles, check the period, averaging method and denominators. Then return to the actual receipts and bills: the cycle has not shown whether next week's payment is covered.

Build the calendar around the first failure.

For an approaching commitment, start with cash actually available for it. Put each relevant receipt and payment on its expected date, then run the balance forward. Mark any receipt whose amount or date is uncertain and show what changes if it arrives late. Include commitments already made even when the bill has not arrived.

A useful calendar identifies the first payment the business cannot make, the largest cumulative gap and the last date there is still time to change something. It can also reveal a limit on a promising sale: winning three more orders on the same payment terms may enlarge the gap before it improves collections.

Do not make the calendar optimistic simply to keep every line positive. An exposed gap can still be addressed. A gap hidden inside a comfortable annual total is harder to manage.