Your sales are rising!
Customers are placing bigger orders.
Your profit and loss statement looks healthy.

Yet the bank balance keeps telling a different story. There is barely enough cash to pay suppliers, replenish inventory, or accept the next opportunity. 

Sounds familiar?

This is one of the most misunderstood realities of running a business. A company can record a profit long before it collects the cash. While it waits for customers/buyers to pay, money remains locked in stock & invoices, but salaries, taxes and supplier bills continue to fall due.

Growth can increase your working capital needs.

The issue often comes down to how cash moves through the business. Money goes out to purchase stock and run operations before it returns through payments. Working capital helps a business measure and manage this gap. This guide first explains its types and operating cycle, then shows how NWC is calculated, and finally compares traditional sources with digital options such as Supply Chain Finance and invoice discounting.

What is working capital?

At its core, working capital is the net operational liquidity available to run day-to-day business activities. It is the difference between two short-term financial buckets:

Current assets: Resources expected to turn into cash within 12 months, such as bank balances, raw-material inventory and unpaid customer invoices (accounts receivable).

Current liabilities: Obligations due within 12 months, including supplier bills (accounts payable), short-term loans, taxes and accrued operating expenses.

In simple terms, working capital shows whether a business has enough near-term resources to cover its near-term bills and continue operating smoothly. It is not the same as profit or the cash currently available in a bank account. A company may have positive working capital but still face a cash shortage if most of its money is trapped in slow-moving inventory or overdue invoices.

In practical terms, working capital is needed to support activities including but not limited to:

1. Purchasing raw materials and inventory
2. Paying employees, transporters, and utility bills
3. Extending credit to customers
4. Meeting taxes and other short-term obligations
5. Managing seasonal demand or unexpected expenses

The term is often used interchangeably with Net Working Capital (NWC). Strictly speaking, gross working capital refers to total current assets, while net working capital is calculated by deducting current liabilities.

Types of working capital

These categories help businesses match funding to the underlying requirement.

Gross and net working capital

Gross working capital is the total amount of money invested in cash, inventory, receivables, and other current assets.

Net working capital is current assets minus current liabilities, considering both available resources and upcoming obligations.

Permanent and temporary working capital

Permanent working capital is the minimum needed throughout the year for base inventory, staff and recurring expenses.

Put simply, it is the amount of short-term capital a business needs to keep its day-to-day operations running smoothly.

Temporary working capital is the extra amount needed for seasonal demand, a large order or an unforeseen delay. A consumer-goods company, for example, may build inventory before the festive season and release that capital after collection.

Positive, negative and zero working capital

Positive working capital means current assets exceed current liabilities. It usually indicates a liquidity cushion, though asset quality matters.

Negative working capital may signal stress, but cash-first businesses that collect payments before paying suppliers can operate this way successfully.

Zero working capital means current assets equal current liabilities, leaving little room for delays or unexpected expenses.

What is the working capital cycle?

Net working capital is a balance-sheet figure at a point in time. The working capital cycle, often measured through the cash conversion cycle (CCC), shows how long cash remains tied up in operations. Put simply, it tracks the time between paying for inputs and collecting cash from customers. A shorter cycle usually frees liquidity sooner; a longer cycle increases the amount the business must fund.

The cycle generally follows this sequence:

Cash → Raw Materials → Inventory → Sales → Receivables → Cash

A business first spends money on materials or goods. It then holds inventory, sells to customers on credit, and waits for invoices to be paid. Supplier credit can fund part of this journey.

The formula is:

Cash Conversion Cycle = Days Inventory Outstanding + Days Sales Outstanding – Days Payables Outstanding

Days Inventory Outstanding (DIO): Average time inventory is held before sale

Days Sales Outstanding (DSO): Average time taken to collect customer payments

Days Payables Outstanding (DPO): Average time taken to pay suppliers

Assume a company holds inventory for 50 days, collects receivables in 75 days, and pays suppliers in 35 days:

CCC = 50 + 75 – 35 = 90 days

The company must fund roughly 90 days of operations before its cash returns. Reducing inventory days, collecting invoices sooner, or negotiating sustainable supplier terms can shorten this cycle. 

Extending DPO indiscriminately, however, may damage supplier relationships or pricing.

Working capital formula: How is NWC calculated?

The net working capital formula is:

Net Working Capital = Current Assets – Current Liabilities

Current assets include cash, receivables, inventory, and other assets expected to be converted to cash within a year. Current liabilities include payables, short-term borrowings, accrued expenses, taxes, and debt due within a year.

Working capital calculation using a manufacturer as an example:

Cash and bank balance: ₹10L

Accounts receivable: ₹60L

Inventory: ₹50L

Total current assets: ₹1.20Cr.

Accounts payable: ₹45L

Short-term borrowings: ₹25L

Other current liabilities: ₹15L

Total current liabilities: ₹85L

Its net working capital is:

₹1.20 crore – ₹85 lakh = ₹35 lakh

The current ratio is ₹1.20 crore ÷ ₹85 lakh = 1.41. NWC gives the absolute rupee surplus, while credit managers also use the current ratio to assess near-term coverage; 1.2-2.0 is a broad benchmark, although the right range varies by industry and asset quality.

The manufacturer has positive NWC of ₹35 lakh. Yet if receivables are overdue or inventory cannot be sold quickly, it may still face a cash shortage.

Why does working capital management matter?

Strong management enables timely payroll and supplier payments, reduces emergency borrowing, and creates room for new orders or to handle disruptions. 

A buyer’s delayed payment can also impose strain on smaller vendors with less access to affordable financing. Faster approval, visibility, and access to financing strengthen the supplier ecosystem.

Excess working capital also has a cost. Idle cash, obsolete stock and slow receivables cannot be reinvested. The objective is to maintain the right amount and convert it efficiently.

Common working capital challenges

Long payment terms

In B2B supply chains, payment terms may extend to 90-120 days. Suppliers must still buy inputs and pay wages during this period. Rapid growth can widen this gap because each new order requires more cash.

Slow invoice approval and collections

Errors, paper-based approvals, manual matching and Goods Receipt Note (GRN) delays can consume 15-30 days before the contractual 90-day credit clock even starts, creating an invisible cash bottleneck. Disputes and limited visibility into invoice status further weaken collections and cash-flow forecasting.

Inventory pressure

Seasonality and demand uncertainty can create excess stock. Too little inventory risks lost sales, while too much locks liquidity and adds storage, insurance and obsolescence costs.

Mismatched inflows and outflows

A company may need to pay suppliers within 30 days, while its customers pay within 90 days. That 60-day mismatch must be funded alongside payroll, taxes, utilities and other recurring expenses.

Limited access to traditional credit

Smaller businesses may face collateral requirements, lengthy documentation processes, and fixed credit limits that fail to keep pace with sales growth.

Fragmented financial data

Separate procurement, invoicing and finance systems can obscure the company’s true cash position. Duplicate records and manual reconciliation slow decisions and make financing more difficult.

Sources of working capital

The right source depends on the duration of the requirement, urgency, asset quality, financing cost and repayment capacity. Businesses often use a combination of internal funds, traditional credit and digital financing solutions.

Internal and spontaneous sources

Several sustainable sources originate within normal business operations:

Retained earnings: Profits retained in the business can fund the permanent working capital base.

Faster collections: Prompt invoicing and disciplined follow-up can release cash without creating new debt.

Better inventory management: Demand forecasting and stock optimization reduce cash trapped in slow-moving goods.

Trade credit: Suppliers allow buyers to pay after delivery, providing a spontaneous source of short-term finance.

Accrued expenses: Costs recognized before payment can provide temporary support but must be managed carefully.

Traditional sources of working capital

Cash credit

A bank sanctions a revolving limit, commonly linked to eligible current assets and drawing power (DP). The business can draw and repay funds as required, with interest generally charged on the amount used. DP is recalculated periodically, often monthly, from eligible inventory and receivables after applying margins and exclusions in the sanction terms. Receivables aged beyond 90 days may be excluded, so delayed collections can reduce available DP; lenders may also require stock/debtor statements and periodic, often quarterly, audits.

Bank overdraft

A bank overdraft allows a business to withdraw more money than is available in its current account, up to an agreed limit. It can help cover short and unpredictable cash gaps. However, pricing, security requirements and renewal terms vary between lenders. Persistent use can also become expensive.

Working capital demand loan

A working capital demand loan or short-term business loan provides a fixed amount for a specific tenure. It may be suitable for seasonal demand, a major order, or another predictable requirement.

Unlike a revolving facility, repayment generally follows a predetermined schedule, making it less flexible if the cash cycle changes unexpectedly.

Bills purchased or discounted

A bank advances money against eligible trade bills before they reach maturity and collects payment later. This is a traditional form of receivables finance and remains subject to the lender’s documentation and credit criteria.

Commercial paper

Creditworthy companies, usually larger enterprises, can issue unsecured short-term debt to institutional investors. It may offer competitive financing but is generally not accessible to smaller businesses.

Equity or long-term debt

Permanent working capital should not depend entirely on facilities that require frequent renewal. Promoter funds, retained earnings, equity or appropriately structured long-term debt can provide a more stable base.

Modern digital sources of working capital

Digital financing solutions use transaction data, invoices and established supply-chain relationships to connect funding more closely with genuine business activity. Technology-led, multi-funder platforms can integrate with ERP and procurement systems to automate validation, routing, approvals and disbursal tracking.

Relevant Mynd Fintech offerings include Dynamic Discounting, Supply Chain Finance, Vendor Finance, Invoice Finance and Dealer Finance.

Dynamic discounting

Dynamic discounting can be treasury-funded: a buyer uses surplus cash to pay an approved invoice early in return for a discount that changes with the payment date. Enterprise platforms can also operate a hybrid model in which third-party financiers step in via the same workflow after treasury cash is deployed. This lets CFOs balance discount yield, liquidity limits and supplier access without moving to a separate process.

Supply Chain Finance

Modern Supply Chain Finance is technology-led and often multi-funder enabled. After a buyer approves an invoice, ERP or API integration can validate the invoice data and route the transaction to participating financiers, allowing the supplier to select early payment through the same digital workflow.

The selected financier pays the supplier after approval, and the buyer settles on the agreed maturity date. The assessment can use the buyer’s credit quality and a verified invoice to preserve buyer payment terms while accelerating supplier cash.

Automated onboarding, validation, and disbursal tracking reduce manual handoffs and provide buyers, suppliers, and financiers with shared visibility into verified commercial transactions.

Vendor Finance

Vendor Finance gives suppliers access to early payment or a working-capital line based on their trading relationship and approved invoices with an anchor buyer. A digital multi-funder platform can automate onboarding, invoice validation and offer selection, helping vendors bridge long payment terms while the buyer protects supply continuity.

Purchase invoice discounting 

Purchase invoice discounting supports a buyer’s supplier payments. Vendors receive funds on time, while the buyer settles with the financing partner later in accordance with the program terms.

It can help buyers preserve liquidity without forcing suppliers to wait longer for payment.

Invoice discounting

Invoice discounting allows a business to receive an advance on unpaid customer invoices rather than waiting until the due date. Depending on the arrangement, it may be offered with or without recourse and can be disclosed or confidential. It converts accounts receivable into usable cash and can expand alongside eligible sales.

Factoring

In factoring, receivables are assigned or sold to a financing company known as a factor. The factor may also manage collections and, under certain non-recourse arrangements, assume specified buyer default risk. Factoring can therefore combine faster access to liquidity with receivables management support.

Dealer or channel finance

Dealer finance provides dealers or distributors with access to credit to purchase inventory. The anchor company receives payment earlier, while channel partners gain time to sell the stock before repayment becomes due. This can improve the anchor’s sales visibility while giving dealers greater purchasing capacity.

Digital invoice marketplaces and TReDS (Trade Receivables Discounting System)

Eligible businesses can place accepted invoices on digital platforms for competitive bidding by participating financiers. These workflows improve transparency and can reduce the paperwork and turnaround time associated with conventional borrowing.

Traditional vs digital working capital sources

The choice is easier when the two models are compared across the same decision factors:

Decision factor	Traditional working capital sources	Digital working capital sources
Credit basis	Borrower-level financials, sanctioned limits and often collateral	Approved invoices, transaction data and/or an anchor relationship
Best suited to	Broad, recurring or general-purpose cash needs	Specific receivables, supplier payments or channel transactions
Onboarding and access	Documentation-heavy sanctioning, periodic renewal and reviews	Digital onboarding, ERP/API integration and workflow-based approval
Available limit	Usually fixed or periodically renewed	Can scale with eligible invoices or program activity, subject to policy
Repayment	Revolving or scheduled repayment by the borrower	Linked to invoice maturity, buyer payment or program terms
Technology and visibility	Often separate from procurement and invoice workflows	Transaction-level validation, status tracking and automated reconciliation
Supplier/customer impact	Provides liquidity but may not address invoice-processing friction	Can accelerate supplier cash while preserving agreed buyer terms
Cost lens	Interest rate, utilization, collateral and renewal costs	Discount/finance charge, platform costs, recourse and operational savings

Compare total cost, not just the quoted rate. Slow access can increase operational costs through delayed production, missed orders, or strained supplier relationships.

How to improve working capital without over-borrowing

1. Audit collections and aging: Measure NWC and the cash conversion cycle regularly. Track DSO, DIO and DPO by business unit, product and customer; use aging reports to identify overdue receivables and slow-moving inventory.
2. Digitize invoicing and GRN approvals: Raise accurate invoices immediately, automate PO-GRN-invoice matching, assign clear approval owners and resolve disputes early.
3. Segment customer credit terms: Group customers by payment behavior and risk so credit limits, collection cadence and payment terms match the relationship.
4. Optimize inventory and supplier terms: Improve demand forecasting, release obsolete stock and negotiate sustainable supplier terms without extending DPO indiscriminately.
5. Layer financing appropriately: Use stable capital for the permanent base, revolving facilities for variable needs and invoice-linked finance for specific receivables or payables. Maintain a contingency buffer before a shortage becomes urgent.

Turn working capital into a growth lever.

Working capital is more than current assets minus current liabilities. NWC shows the company’s short-term liquidity position, while the working capital cycle reveals how efficiently cash moves through inventory, sales, receivables and payables. Both measures are essential for sound financial decisions.

For businesses dealing with long payment terms and cash trapped in invoices, modern financing can connect liquidity directly to verified trade flows.

Ready to unlock liquidity tied up in unpaid invoices? Discover how Mynd Fintech’s Supply Chain Finance Solutions help enterprise buyers and suppliers automate invoice discounting, optimize NWC, and bridge 90+ day payment gaps through integrated digital workflows.

Frequently asked questions

What is working capital in simple words?

Working capital is the operating liquidity a business uses to fund day-to-day operations, such as paying suppliers, buying raw materials and covering payroll. Net Working Capital (NWC) is calculated as current assets minus current liabilities.

What are the main sources of working capital?

The main sources include internal funds and trade credit; traditional facilities such as cash credit, bank overdrafts, short-term loans and bill discounting; and digital options such as Dynamic Discounting, Supply Chain Finance, Vendor Finance, invoice discounting, factoring, Dealer Finance and TReDS. Stable long-term capital can fund the permanent working-capital base.

How much working capital does a business need?

The right amount depends on the operating cycle, seasonality, customer payment terms, supplier credit and industry. A business should forecast its cash inflows and outflows, calculate the permanent requirement and maintain a reasonable buffer for payment delays or unexpected costs.

Is negative working capital always bad?

No. Negative working capital can indicate a liquidity problem, particularly when receivables are slow or debt is due soon. However, businesses that collect money from customers before paying suppliers may operate efficiently with negative working capital: industry context and cash-flow timing matter.

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

Net working capital is a rupee amount calculated by subtracting current liabilities from current assets. The working capital cycle is a time-based measure calculated as DIO plus DSO minus DPO. It estimates the number of days for which cash remains tied up in operations.

What is a good working capital ratio?

A ratio above 1 means the business has more current assets than current liabilities. However, there is no universal ideal ratio.

The appropriate level depends on the industry, business model, and quality of the underlying assets. A high ratio can still hide overdue receivables or obsolete inventory.

Which working capital source is best?

There is no single best source for every business. The right option depends on the duration and purpose of the requirement, financing costs, collateral, speed, repayment structure, and the quality of the company’s invoices or supply chain relationships.

How can Supply Chain Finance improve working capital?

Supply Chain Finance can allow suppliers to receive early payment against approved invoices while buyers retain their agreed payment terms. This can improve supplier liquidity, reduce pressure from long collection periods, and make cash flows more predictable across the supply chain.

What is the difference between a traditional bank overdraft and digital invoice discounting?

A bank overdraft is a borrower-level revolving facility tied to the company’s bank account, with a sanctioned limit and often collateral, and interest charged on the amount used. Digital invoice discounting releases cash against eligible invoices through a platform-led workflow; availability can scale with approved receivables and may use buyer and transaction data rather than relying only on the borrower’s balance sheet.