Last Updated March 18, 2026
Operating working capital is a key indicator of your company’s financial health, but it’s not always as closely monitored as regular working capital.
Many businesses operate on the same kind of cycle: pay suppliers, produce goods or deliver services, invoice customers, and get paid.
During this process, money is temporarily tied up in inventory and unpaid invoices, and you can’t leverage it within your business. Operating working capital calculates how much cash is locked in that cycle and how efficiently your company is managing it.
Understanding the ins and outs of operating working capital can give you insight into your business’s operational efficiency and cash flow stability. Let’s talk about what operating working capital is, how to calculate it, and how you can gain access to additional working capital when you need it.
Key Takeaways
- Operating working capital measures how much cash is tied up in daily business operations like inventory and unpaid invoices.
- Operating working capital is calculated as accounts receivable plus inventory minus accounts payable.
- A higher operating working capital can signal cash flow pressure, while a lower amount often indicates more efficient operations.
- Tracking operating working capital helps businesses improve cash flow, optimize payment terms, and make better financial decisions.
What Is Operating Working Capital?
Operating working capital measures how much money a business has tied up in its day-to-day operations. It’s different from traditional working capital because it focuses specifically on the cash involved in producing goods or delivering services.
For example, when you purchase materials, create a product, and then invoice a client on net-30 terms, it usually takes several weeks before that revenue turns into cash. During that time, you still need to cover payroll, supplier payments, and operating expenses. Operating working capital represents the funding it takes to keep your business running during that gap.
A higher operating working capital requirement usually means you have more cash locked up in your inventory or unpaid invoices. A lower requirement means that your business is pretty efficient at converting sales into cash.
Is Cash Included in Operating Working Capital?
Cash isn’t typically included in operating working capital. Your operating working capital is supposed to measure how much capital you have tied up in your business operations, including unpaid customer invoices, inventory, and supplier payments. Cash is considered a liquid asset, not an operational one, which is why it’s excluded from the equation.
How to Calculate Operating Working Capital
Operating working capital is calculated by measuring the assets and liabilities that are directly tied to your company’s day-to-day operations. The goal is to determine how much capital is tied up in the operating cycle.
Operating Working Capital Formula
Operating working capital is calculated with this formula:
Operating Working Capital = Accounts Receivable + Inventory – Accounts Payable
This formula accounts for the cash that’s temporarily tied up in the in-between time when you pay for supplies or labor but haven’t been paid by customers yet.
Each part of the net operating working capital formula stands for a different aspect of business operations:
- Accounts receivable (AR): The money your customers owe you for goods or services you’ve already delivered.
- Inventory: The value of products or materials that are waiting to be sold or used.
- Accounts payable (AP): The money your business owes suppliers or vendors for purchases made on credit.
To calculate your operating working capital, add the value of accounts receivable and inventory, and then subtract accounts payable. You can also use tools like our working capital calculator to determine your net working capital and working capital ratio, an important metric that gives you an idea of your company’s liquidity.
Difference Between Operating Working Capital vs. Working Capital
The difference in operating capital vs. working capital can be illustrated by comparing their two formulas:
Working Capital = Current Assets – Current Liabilities
Operating Working Capital = Accounts Receivable + Inventory – Accounts Payable
Working capital looks at your overall short-term liquidity and shows whether your business has enough short-term assets to cover its short-term liabilities. Seeing your working capital increase is often a sign of a thriving business.
Operating working capital focuses only on the cash tied up in day-to-day operations. It shows how much capital is tied up in running your business, like inventory waiting to sell or invoices waiting to be paid. You want to aim for a moderate to low amount of operating working capital.
The Importance of Tracking Your Operating Working Capital
Of course, your working capital changes from day to day as you order materials or get paid by a client. However, there are larger patterns you need to watch for to determine if your operations are becoming more or less efficient.
When net operating working capital increases, it usually means that more cash is being tied up in accounts receivable or inventory. This can happen if customers take longer to pay invoices, inventory builds up, or supplier payment terms change. In these situations, your business could experience a tighter cash flow even if your sales are growing.
On the other hand, a decrease in operating working capital can be proof that your operations are becoming more efficient. If you’re getting good at managing inventory or you successfully negotiate a shorter invoice period with your clients, you free up cash that you can then reinvest in the business.
Ultimately, tracking long-term change in operating working capital helps you make informed business decisions that support healthier cash flow and more sustainable operations.
Tips for Improving Operating Working Capital
Improving your operating working capital is all about making sure your business has enough short-term liquidity to operate without tying up unnecessary cash. Here are a few optimization tips:
Optimize Payment Terms and Accounts Receivable
The longer your customers take to pay invoices, the more cash is trapped in receivables. Consider shortening your payment terms, offering early payment discounts, and using digital payment options.
Forecast Future Cash Flow
It’s much easier to avoid working capital problems if you know a cash shortage could be on the horizon. Maintain a rolling 12-week cash flow forecast, and keep an eye on any upcoming large expenses, like a quarterly tax bill.
Use Working Capital Financing
Sometimes, improving working capital involves using short-term financing tools. With invoice factoring, for example, you sell unpaid invoices to a third-party company, which then funds a cash advance of 80-90% of your invoice total. It’s a convenient way to access liquid funds for expenses like payroll when you know the cash is coming, but it hasn’t quite made it to your account.
In-Summary: Operating Working Capital
Operating working capital gives you a clear picture of how efficiently your company is managing the cash it takes to produce goods, deliver services, and collect payments. Keeping a close eye on this metric is key to catching cash flow challenges early.
Use what you know about operating working capital to make better decisions about your credit policies and inventory management. Ultimately, optimizing your operating working capital is one way to support long-term sustainable growth for your business.
Michael McCareins is the Content Marketing Associate at altLINE, where he is dedicated to creating and managing optimal content for readers. Following a brief career in media relations, Michael has discovered a passion for content marketing through developing unique, informative content to help audiences better understand ideas and topics such as invoice factoring and A/R financing.
