The working capital formula is Working Capital = Current Assets − Current Liabilities. It measures the short-term cash a business has left after covering everything it owes within the next 12 months. Pull "current assets" (cash, accounts receivable, inventory, prepaid expenses) and "current liabilities" (accounts payable, short-term debt, accrued expenses, the current portion of any loan) straight off your balance sheet, subtract the second from the first, and the result is your net working capital. A positive number means you can cover near-term obligations from near-term resources; a negative number means your bills outrun the cash and collectibles on hand. Most operators also convert it into a ratio (current assets ÷ current liabilities) because that is the version a lender or investor reads first.
Key takeaways
- Working Capital = Current Assets − Current Liabilities; the ratio version is Current Assets ÷ Current Liabilities.
- Only items due or convertible to cash within 12 months count — including the current portion of long-term loans.
- A working capital ratio of 1.2 to 2.0 is generally healthy for small businesses; below 1.0 is a warning sign.
- The quick ratio removes inventory to test truly liquid coverage: (Current Assets − Inventory) ÷ Current Liabilities.
- Fast growth drains working capital because you spend on inventory and staff before the revenue lands.
- Revenue-based advances approve on bank deposits and revenue over credit (often FICO 500+), start near $10,000, and can fund in 24-48 hours — no legitimate funder guarantees approval.
- Track net working capital and the ratio monthly; a three-month downward trend signals a timing gap worth funding early.
The working capital formula, line by line
There are two ways to express the same idea, and you should know both because lenders switch between them without warning.
Net working capital (a dollar figure):
Working Capital = Current Assets − Current Liabilities
Working capital ratio (a multiple):
Working Capital Ratio = Current Assets ÷ Current Liabilities
"Current" is the load-bearing word. It means anything expected to convert to cash or come due within 12 months. Everything else — your building, your trucks, a five-year equipment loan — is long-term and stays out of this calculation.
What counts as a current asset: cash and cash equivalents, accounts receivable (money customers owe you), inventory, and prepaid expenses like insurance you've already paid.
What counts as a current liability: accounts payable (money you owe suppliers), accrued wages and taxes, short-term lines of credit, and the current portion of long-term debt — the next 12 months of payments on any longer loan.
The subtraction gives you a cushion in dollars. The division gives you a health signal you can compare across time and against other businesses regardless of size.
A worked example you can copy
Numbers make this concrete. Here is a simplified balance-sheet snapshot for a fictional wholesale distributor — figures shown for example only.
| Balance sheet line (for example) | Amount | Bucket |
|---|---|---|
| Cash in operating account | $40,000 | Current asset |
| Accounts receivable (net 30/60) | $120,000 | Current asset |
| Inventory on hand | $90,000 | Current asset |
| Prepaid insurance | $10,000 | Current asset |
| Total current assets | $260,000 | |
| Accounts payable to suppliers | $95,000 | Current liability |
| Accrued payroll & taxes | $35,000 | Current liability |
| Line of credit balance | $50,000 | Current liability |
| Current portion of equipment loan | $20,000 | Current liability |
| Total current liabilities | $200,000 |
Net working capital = $260,000 − $200,000 = $60,000.
Working capital ratio = $260,000 ÷ $200,000 = 1.3.
Read it like an operator: this business has a $60,000 cushion and $1.30 of near-term assets for every $1.00 of near-term bills. Comfortable, but not flush — and note that $120,000 of those "assets" is receivables that haven't landed in the bank yet. That gap between what's owed to you and what's actually spendable is where most cash-flow stress lives.
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How to read the result: ratio benchmarks
The dollar figure tells you the size of your cushion. The ratio tells you the shape of your health. Here is how most lenders and CFOs interpret it — treat these as rules of thumb, not hard cutoffs.
| Working capital ratio | What it usually signals |
|---|---|
| Below 1.0 | Current liabilities exceed current assets. You may struggle to cover near-term bills from near-term cash. A warning light, not always a crisis — but watch it closely. |
| 1.0 to 1.2 | You're covered, but thin. Little room for a slow-paying customer or a surprise expense. |
| 1.2 to 2.0 | Generally considered a healthy operating range for most small businesses. |
| Above 2.0 | Comfortable liquidity — but if it's much higher, you may be sitting on idle cash or overstuffed inventory that could be put to work. |
Two cautions. First, a "good" ratio is industry-dependent: a restaurant that turns inventory in days runs leaner than a manufacturer that holds raw materials for months. Second, the ratio can lie by omission. A business can show a healthy 1.5 while most of its current assets are aging receivables or slow-moving inventory — assets that look liquid on paper but can't make Friday's payroll. That's why cash-flow timing, not just the balance-sheet snapshot, is what actually determines whether you make it to the next deposit.
Net working capital vs. the working capital ratio vs. the quick ratio
Three related measures get used interchangeably, and mixing them up leads to bad decisions.
- Net working capital is the dollar cushion (assets minus liabilities). Use it to answer "how much breathing room do I have?"
- Working capital ratio (also called the current ratio) is the multiple (assets divided by liabilities). Use it to compare health over time or against peers.
- Quick ratio is the strict cousin: (current assets − inventory) ÷ current liabilities. It strips out inventory because inventory can be slow or impossible to sell fast. If your quick ratio is much lower than your current ratio, your liquidity is leaning heavily on stock you'd have to move to raise cash.
For a business deciding whether it can fund next month's growth, the quick ratio is often the more honest gut-check. Inventory sitting in a warehouse doesn't cover payroll.
What changes the number — and what to do about it
Working capital isn't static. It moves every time you buy inventory, extend a customer terms, or make a loan payment. The levers you control:
- Collect receivables faster. Tighter terms, deposits up front, or early-payment discounts pull cash forward and lift the number.
- Manage payables deliberately. Paying suppliers on the last acceptable day (without burning the relationship) keeps cash in your account longer.
- Right-size inventory. Every dollar in overstock is a dollar not in your operating account. Leaner inventory frees working capital.
- Watch the growth trap. Counterintuitively, fast growth drains working capital: you buy inventory and staff up before the revenue lands. Many profitable businesses run out of cash mid-expansion. The formula catches this before your bank balance does.
When the levers aren't enough — a seasonal ramp, a big purchase order, a slow-pay stretch — outside funding bridges the gap. That's where a revenue-based advance or merchant cash advance becomes a tool rather than a last resort: it's built to smooth exactly the timing mismatch the working capital formula exposes.
Decision framework: when to fund a working capital gap
A thin or negative working capital number is a signal to act, not automatically a signal to borrow. Use this to decide.
Funding a working capital gap works best when:
- The gap is a timing problem, not a profitability problem — you have real revenue and real receivables, they're just landing after your bills are due.
- You have a specific, revenue-generating use: a purchase order to fill, inventory for a known busy season, payroll during a ramp you can see ending.
- Your deposits are steady enough that a fixed daily or weekly remittance won't choke the account. Revenue-based funders approve on bank-deposit history and revenue over credit score — many work with FICO 500+ — and can fund in 24 to 48 hours on amounts starting around $10,000, which fits a genuine timing gap.
- The return on the capital clears the cost of the capital. If the inventory you buy or the order you fill throws off more cash than the advance costs, the math works.
Avoid or pause when:
- The gap is structural — you're losing money on every sale, and more cash just funds the losses faster. Fix the margin first.
- You'd use the money to cover fixed overhead with no line of sight to the revenue that repays it.
- Your deposits are erratic or already thin; layering a remittance on unstable cash flow compounds the stress.
- You're chasing a "guaranteed approval" pitch. No legitimate funder guarantees approval — that language is a red flag, not a feature.
Compare offers on total cost of capital and remittance structure, and match the repayment rhythm to how your revenue actually arrives. A short-term advance is a bridge over a timing gap, not a substitute for a broken business model. If you want the mechanics of how revenue-based repayment works, start with our merchant cash advance overview.
A quick way to run the number every month
You don't need accounting software to stay on top of this. Once a month, do three things: (1) pull your current assets — bank balance, outstanding invoices, inventory at cost; (2) pull your current liabilities — what you owe suppliers, the next 12 months of any loan payments, accrued payroll and taxes; (3) subtract, then divide. Track the two results month over month. A cushion that's shrinking three months in a row is telling you something a single snapshot never will. The trend is the signal — catch a slide while it's still a timing issue you can fund cheaply, before it becomes a crisis you fund expensively.
Frequently asked questions
What is the working capital formula?
Working Capital = Current Assets − Current Liabilities. Current assets include cash, accounts receivable, inventory, and prepaid expenses; current liabilities include accounts payable, accrued expenses, short-term debt, and the current portion of long-term loans. The result is the short-term cash cushion your business has after covering everything due within 12 months.
What is a good working capital ratio?
For most small businesses, a working capital ratio (current assets ÷ current liabilities) between 1.2 and 2.0 is considered healthy. Below 1.0 means your near-term bills outrun your near-term assets. Above 2.0 is comfortable but can signal idle cash or excess inventory. The right target varies by industry — fast inventory-turn businesses like restaurants run leaner than manufacturers.
What's the difference between net working capital and the working capital ratio?
Net working capital is a dollar figure (assets minus liabilities) that tells you the size of your cushion. The working capital ratio is a multiple (assets divided by liabilities) that tells you the shape of your health and lets you compare across time or against peers. Lenders read both; the ratio is usually what they check first.
Can working capital be negative?
Yes. Negative working capital means current liabilities exceed current assets — your near-term obligations are larger than the cash and collectibles on hand. It's a warning sign to watch closely, though some high-turnover businesses (like grocery or fast food) operate with negative working capital by design because they collect from customers before paying suppliers.
Why does fast growth hurt working capital?
Growth usually requires spending before revenue arrives — buying inventory, hiring staff, filling larger orders — while the cash from those sales lands weeks or months later. That timing mismatch drains working capital even when the business is profitable. Monitoring the formula monthly catches the squeeze before your bank balance does, so you can bridge the gap deliberately.
How can I fix a working capital shortfall quickly?
Internally: collect receivables faster, extend supplier terms where you can, and trim excess inventory. When those aren't enough for a timing gap — a seasonal ramp or a large order — outside funding bridges it. Revenue-based advances and merchant cash advances approve on bank-deposit history and revenue rather than credit score, often work with FICO 500+, start around $10,000, and can fund in 24 to 48 hours.
Does the working capital formula include long-term debt?
Only the current portion. If you have a five-year equipment loan, the next 12 months of payments count as a current liability and belong in the formula; the remaining balance is long-term debt and stays out. The whole formula is limited to items that convert to cash or come due within one year.
Is the quick ratio better than the working capital ratio?
It depends on your business. The quick ratio strips out inventory — (current assets − inventory) ÷ current liabilities — because inventory can be slow to sell. If most of your current assets are stock, the quick ratio gives a more honest read on whether you can cover bills from truly liquid sources. For a payroll-tonight gut-check, it's often the more useful number.
