Guides
Working Capital: Formula, Meaning, and How to Improve It
Working capital is current assets minus current liabilities: the cash and near-cash resources a business has left after covering everything it owes within the next 12 months. It measures short-term liquidity, the cushion that funds payroll, inventory, and supplier payments between the moment a company spends cash and the moment customers pay. Positive working capital signals a company can meet near-term obligations; persistent negative working capital can signal strain, though some high-turnover models run negative by design.
The working capital formula
Working capital equals total current assets minus total current liabilities. Current assets are items expected to convert to cash within one year: cash, marketable securities, accounts receivable, and inventory. Current liabilities are obligations due within one year: accounts payable, accrued expenses, the current portion of long-term debt, and short-term loans. Both figures sit on the balance sheet.
The standard formula:
Working Capital = Current Assets - Current Liabilities
Analysts often refine the number for a cleaner view of operations. Two common variants:
| Metric | Formula | What it isolates |
|---|---|---|
| Net working capital (NWC) | Current Assets – Current Liabilities | Total short-term liquidity, the headline figure |
| Operating working capital | (Accounts Receivable + Inventory) – Accounts Payable | The core trade cycle, excluding cash and debt |
| Non-cash working capital | (Current Assets – Cash) – Current Liabilities | Operating needs, stripping out idle cash |
The operating variant is what deal teams and lenders usually study, because cash and short-term debt are financing decisions rather than measures of how much the business must fund to run.
A worked example
A company reports $1.2 million in current assets ($200K cash, $500K receivables, $500K inventory) and $700K in current liabilities ($450K payables, $250K accrued expenses). Net working capital is $500K ($1.2M minus $700K). Operating working capital is $550K ($500K receivables plus $500K inventory, minus $450K payables). The $500K NWC is the buffer available to absorb a slow sales month or an unexpected bill.
What working capital tells you
Working capital measures whether a business can pay its bills over the next year without new financing. A positive figure means current assets exceed current obligations, leaving a cushion. The size of a healthy cushion depends on the industry: a grocery chain that collects cash instantly and pays suppliers on 30-day terms can operate on thin or negative working capital, while a manufacturer with long production cycles often needs a larger buffer.
Negative working capital is not automatically a warning. Retailers and restaurants with fast inventory turnover and immediate customer payment can fund operations from supplier credit, effectively using vendors as a financing source. The concern is negative working capital paired with slow collections or shrinking sales, which can point to a liquidity squeeze.
Working capital also drives cash flow. Growth ties up cash in receivables and inventory before customers pay, so a fast-growing profitable company can still run short of cash. Reading the trend across quarters, not a single snapshot, shows whether the business is releasing or consuming cash.
The working capital ratio (current ratio)
The working capital ratio, also called the current ratio, divides current assets by current liabilities. Where net working capital gives a dollar figure, the ratio gives a proportion that is comparable across companies of different sizes. A ratio above 1.0 means current assets exceed current liabilities.
Working Capital Ratio = Current Assets / Current Liabilities
General interpretation, which varies by industry:
| Ratio | Common reading |
|---|---|
| Below 1.0 | Current liabilities exceed current assets; possible liquidity pressure |
| 1.0 to 1.5 | Adequate coverage, limited cushion |
| 1.5 to 2.0 | Often viewed as a healthy balance |
| Above 2.0 | Comfortable, but may signal idle cash, slow inventory, or overdue receivables |
A ratio above 2.0 is not always good news. It can mean capital is sitting idle instead of being reinvested. Benchmarks shift by sector: retail often runs efficiently below the general range because inventory turns quickly, while manufacturing may require a higher ratio to cover longer cycles. Compare against direct competitors and the company’s own history rather than a single universal target. For a fuller walk through liquidity measures, see how to read a balance sheet.
How to improve working capital
Improving working capital comes down to increasing current assets or reducing current liabilities, with the biggest lever usually the timing of cash in and cash out. The goal is to shorten the gap between paying for inputs and collecting from customers, the cash conversion cycle. The following moves target that gap:
- Speed up collections. Invoice promptly, offer small early-payment discounts, and push electronic payment methods such as ACH over paper checks. Lowering days sales outstanding (DSO) pulls cash in sooner.
- Manage inventory tighter. Reduce slow-moving stock and align ordering with demand to cut days inventory outstanding (DIO) without triggering stockouts.
- Extend payables sensibly. Negotiate longer supplier terms where relationships allow, raising days payable outstanding (DPO) so cash stays in the business longer, without damaging supplier trust.
- Match financing to the need. Fund short-term gaps with a revolving line of credit rather than draining cash reserves, and avoid using short-term debt to buy long-term assets.
- Improve margins. When price per unit exceeds cost per unit, each sale adds to working capital, so profitability itself builds the cushion over time.
The cash conversion cycle summarizes the timing: DIO + DSO - DPO. A shorter cycle frees cash; a longer one ties it up. Small businesses weighing whether to bring in help on cash management can compare rates in how much a CPA costs for a small business.
Working capital in M&A: the net working capital peg
In a business sale, buyer and seller agree on a net working capital peg (or target): the normal level of working capital the seller must leave in the business at closing. The peg exists because a buyer pays for a company assuming it comes with enough working capital to keep running, without an immediate cash injection. Set it wrong and one side gets a windfall.
The peg is usually built by averaging adjusted operating working capital over a trailing period, often the prior 12 months, to smooth out seasonality and one-time swings. Deal teams map trial-balance accounts to an agreed definition, normalize for outliers, and typically exclude cash and debt (those are handled separately in a cash-free, debt-free deal).
After closing, the parties recalculate actual working capital at the closing date, generally 60 to 120 days later, and true up against the peg. If delivered working capital exceeds the peg, the buyer pays the seller the excess; if it falls short, the seller refunds the shortfall. Disputes over the definition and normalizing adjustments are common. The mechanics, timing, and typical fights are covered in detail in the net working capital peg in M&A guide, and buyers usually test the underlying numbers through a quality of earnings report before setting the target.
Frequently asked questions
What is a good working capital amount?
There is no universal dollar figure. A healthy amount covers near-term obligations with room for a slow period, and it scales with revenue and industry. A useful check is the working capital ratio: many businesses target 1.5 to 2.0, meaning current assets are 1.5 to 2 times current liabilities. Retailers with fast inventory turnover often operate well below that.
Is working capital the same as cash flow?
No. Working capital is a balance sheet figure measured at a point in time (current assets minus current liabilities), while cash flow measures cash moving in and out over a period. They are linked: a rise in receivables or inventory increases working capital on paper but consumes cash. Reading both together shows whether growth is funding itself or draining reserves.
Can working capital be negative and still be healthy?
Yes, in the right business model. Companies that collect from customers immediately and pay suppliers later, such as grocers and restaurants, can run negative working capital by using vendor credit as financing. The risk appears when negative working capital pairs with slow collections or falling sales, which can point to a genuine liquidity problem rather than an efficient cycle.
What is the difference between working capital and the current ratio?
Working capital is a dollar amount (current assets minus current liabilities). The current ratio, or working capital ratio, is a proportion (current assets divided by current liabilities). The dollar figure shows the size of the cushion; the ratio makes companies of different sizes comparable and shows how many times over current assets cover current liabilities.
Why does fast growth hurt working capital?
Growth ties up cash before it comes back. Rising sales usually mean more inventory purchased and more receivables outstanding, both funded before customers pay. A profitable, fast-growing company can still run short of cash if the conversion cycle is long. Managing DSO, DIO, and DPO, or arranging a credit line, can bridge the gap.
How is working capital used in a business sale?
Buyers and sellers set a net working capital peg, the normal working capital level the seller delivers at closing. Actual working capital is measured after closing, usually within 60 to 120 days, and trued up against the peg. Excess is paid to the seller; a shortfall is refunded to the buyer. The peg is typically an average of adjusted operating working capital over the trailing 12 months.
Reviewed by The Ledgerism Editorial Team. Last reviewed: July 2026.