What Is Working Capital? A Complete Guide for Small Businesses (2026)

Working capital is one of the most important numbers in your business — and one of the most misunderstood. Whether you're trying to make payroll during a slow month, stock up before a busy season, or simply understand the health of your business, working capital is the number that tells you whether you have the breathing room to operate.

This guide explains what working capital is, how to calculate it, why it matters, and what your options are when you need more. It's written for business owners, not accountants, so we'll keep the jargon to a minimum.

What Is Working Capital?

Working capital is the money a business has available to cover its short-term, day-to-day operations. In simple terms, it's what's left over when you subtract what your business owes in the near term from what it owns in the near term.

The formula is straightforward:

Working Capital = Current Assets - Current Liabilities

Current assets are things you own that can be turned into cash within a year: cash on hand, money customers owe you (accounts receivable), and inventory.
Current liabilities are what you owe within a year: bills, short-term debt, wages, and payments to suppliers.

If your current assets are greater than your current liabilities, you have positive working capital — a cushion to operate and grow. If your liabilities are greater, you have negative working capital, which can signal a cash crunch.

What Does Working Capital Mean for Your Business?

Working capital is a measure of your business's short-term financial health and flexibility. It answers a practical question: do you have enough cash and near-cash to keep the lights on and seize opportunities?

Healthy working capital means you can:

Cover payroll and bills without stress
Buy inventory ahead of a busy season
Handle an unexpected expense, like an equipment repair
Take on a big order or opportunity without waiting

Tight or negative working capital means the opposite: you're vulnerable to any bump in the road, and growth opportunities can slip by because you don't have the cash to act.

How to Calculate Working Capital

Calculating working capital takes one subtraction. Here's how to do it step by step:

Add up your current assets. Cash, accounts receivable (money owed to you), and inventory that will sell within a year.
Add up your current liabilities. Accounts payable (money you owe), short-term debt, wages owed, and taxes due within a year.
Subtract liabilities from assets.

Example: If your business has $120,000 in current assets and $80,000 in current liabilities, your working capital is $40,000. That $40,000 is your operating cushion.

For a full walkthrough with more examples, see our detailed guide on how to calculate working capital.

What Is Net Working Capital?

Net working capital is the same core idea — current assets minus current liabilities — and in everyday use the two terms are often used interchangeably. Some businesses calculate a narrower version that excludes cash and short-term debt to focus purely on operational items, but for most small business owners, "working capital" and "net working capital" refer to the same number.

We cover the nuances and the exact formulas in our guide to net working capital.

Why Working Capital Matters More for Small Businesses

Large companies can weather cash-flow gaps with reserves and easy access to credit. Small businesses often can't — which makes working capital a make-or-break number. A single slow month, a late-paying client, or an unexpected repair can turn a healthy business into a stressed one overnight if the working capital cushion isn't there.

This is especially true for businesses with seasonality or long payment cycles. A contractor waiting 60 days on an invoice, a retailer stocking up for the holidays, or a restaurant getting through a slow January all face the same challenge: expenses come now, but the money comes later. Working capital is what bridges that gap.

What to Do When You Need More Working Capital

Sometimes a business is healthy and growing but still runs short on working capital — because growth itself ties up cash in inventory, staff, and receivables. When that happens, there are several ways to access more.

Business line of credit — A flexible pool you draw from as needed and pay interest only on what you use. Well-suited to seasonal or recurring gaps.

Merchant cash advance / revenue-based funding — Funding structured around your future sales, often fast to access. Useful when speed matters more than anything.

Invoice financing — Advances against money your customers already owe you. A fit when your cash is tied up in unpaid invoices.

Short-term working capital loans — A lump sum repaid over a set period, for a defined need.

Each option fits a different situation. The right choice depends on how fast you need the money, how predictable the need is, and your business's profile. This is where working with a broker helps — instead of applying to one funder and hoping, your situation gets matched across a network to the structure that actually fits. Since 2014, Berkman Financial has helped small businesses access more than $525 million in working capital across over 10,000 merchants.

For a full comparison of every major alternative funding type, see our alternative business funding guide.

Frequently Asked Questions

What is working capital in simple terms?

Working capital is the money a business has available for its day-to-day operations. It's calculated by subtracting current liabilities (what you owe within a year) from current assets (what you own that can become cash within a year). Positive working capital means you have an operating cushion; negative means you may face a cash crunch.

How do you calculate working capital?

Working capital is calculated with one formula: Current Assets minus Current Liabilities. Add up your cash, accounts receivable, and inventory, then subtract your short-term debts, bills, and payables. The result is your working capital.

What is a good amount of working capital?

Many businesses aim for a working capital ratio (current assets divided by current liabilities) between 1.2 and 2.0, meaning they have $1.20 to $2.00 in current assets for every $1.00 in current liabilities. The right level varies by industry and business model, so this is a general guideline rather than a rule.

What is the difference between working capital and net working capital?

For most small businesses, the terms are used interchangeably — both refer to current assets minus current liabilities. Some businesses calculate a narrower version of net working capital that excludes cash and short-term debt to isolate operational items, but the core concept is the same.

Can a business have too much working capital?

Yes. Very high working capital can mean a business is holding too much cash or inventory that could be invested in growth instead. The goal is enough working capital to operate comfortably and seize opportunities, without large amounts sitting idle.

How can a small business increase its working capital?

A business can increase working capital by improving cash flow (collecting receivables faster, managing inventory tighter), or by accessing outside funding such as a line of credit, revenue-based funding, invoice financing, or a working capital loan. The right approach depends on whether the need is a one-time gap or an ongoing pattern.

What happens if working capital is negative?

Negative working capital means current liabilities exceed current assets, signaling a potential short-term cash shortage. It isn't always a crisis — some businesses operate this way intentionally — but for most small businesses it's a warning sign that the operating cushion is thin and outside funding or cash-flow changes may be needed.

Explore Working Capital in More Depth

This guide is the starting point. For deeper dives on specific questions, see:

Understand Your Options

Understanding working capital is the first step. If your business could use more of it — to smooth a slow season, fund growth, or handle an opportunity — it's worth understanding what's available to you.

See your working capital options →

Berkman Financial is a financing broker that works across a network of funders to help small businesses access working capital and alternative funding. This guide is educational and not financial advice. We do not guarantee approval, rates, or specific funding outcomes.