What Is Working Capital? Formula, Operating Cycle and How Banks Fund It (2026)

Every business that buys before it sells needs working capital — the cash that funds stock, credit to customers and wages while you wait to be paid. Get it wrong and a profitable business can still run out of money. This guide is for owners of small manufacturing units, traders and service firms in India who want to understand the number their bank and CA keep talking about. You'll get the formula, the operating cycle, the working-capital gap, the methods Indian banks use to size a cash credit limit, two fully worked ₹ examples, and a plain comparison of cash credit, overdraft, bill discounting and TReDS. Rules were checked against RBI, Ministry of MSME and Companies Act sources in October 2026.

Quick answer

Working capital is the money a business needs to run its daily operating cycle. Net working capital = current assets − current liabilities — stock, receivables and cash, minus what you owe suppliers and other short-term dues. Banks fund part of it through a cash credit or overdraft limit; for MSE limits up to ₹5 crore, RBI's guidance is a limit of at least 20% of projected annual turnover.

• Gross working capital = all current assets; net working capital = current assets − current liabilities

• Operating cycle = days stock is held + days customers take to pay − days suppliers give you

• Working-capital gap = current assets − current liabilities other than bank borrowings

• Turnover method: need = 25% of turnover; bank funds at least 20%, you bring 5%

• TReDS lets MSMEs sell approved invoices for cash without collateral

What is working capital? Meaning and the two definitions

Working capital is the short-term money locked inside your business at any moment: raw material on the shelf, half-finished goods on the floor, finished goods waiting to be dispatched, invoices your customers haven't paid yet, and the cash you keep for wages and bills. Against that sit the short-term amounts you owe — suppliers who gave you credit, GST and TDS payable, salaries due, advances from customers.

Accountants use two versions of the term. Gross working capital is the total of current assets. Net working capital is current assets minus current liabilities, and it's the version most people mean. A positive figure means part of your current assets is funded by long-term money (your capital or a term loan); a negative figure means suppliers and other short-term creditors are funding more than your current assets.

The words "current" and "non-current" are defined in law for companies. Schedule III of the Companies Act, 2013 says an asset is current if you expect to realise it, sell it or consume it in your normal operating cycle, hold it mainly for trading, expect to realise it within twelve months of the balance sheet date, or it is unrestricted cash. Liabilities follow the mirror test. Schedule III also defines the operating cycle as the time between acquiring assets for processing and realising them in cash — and where that cycle can't be identified, it is assumed to be twelve months. Proprietorships and partnerships aren't bound by Schedule III, but ICAI's format for non-corporate entities uses the same current/non-current split, and so does every bank's CMA data form.

The working capital formula and ratios

The formula is simple:

Net working capital = Current assets − Current liabilities

If your shop holds ₹12 lakh of stock, customers owe you ₹6 lakh and you have ₹1 lakh in the bank, current assets are ₹19 lakh. If you owe suppliers ₹7 lakh and have ₹1 lakh of GST and salaries due, current liabilities are ₹8 lakh. Net working capital is ₹11 lakh — that amount must come from your own capital, a term loan, or a working capital limit from the bank.

Two ratios give the same information in a form banks like to compare. The current ratio is current assets divided by current liabilities; in the example above it is 19 ÷ 8 = 2.4. Bankers in India traditionally look for at least 1.33 for borrowers assessed on the second Tandon method, though a reasonable ratio depends on your industry. The quick ratio removes inventory from the top line, because stock is the slowest asset to turn into cash; here it is (19 − 12) ÷ 8 = 0.9. A quick ratio below 1 isn't unusual for a stock-heavy trader, but it means you rely on selling stock to pay this month's bills.

Schedule III now asks companies to disclose the current ratio, along with trade receivables turnover, trade payables turnover and net capital turnover, and to explain any change of more than 25% from the previous year. If you run a private limited company, those ratios are in your audited accounts — and your bank will read them. Our balance sheet guide shows where each number comes from.

The operating cycle: why profitable firms run short of cash

The operating cycle tracks one rupee from the day it leaves your account to buy material until it comes back from a customer. For a manufacturer it has five legs: cash buys raw material, raw material becomes work-in-progress, work-in-progress becomes finished goods, finished goods become debtors when sold on credit, and debtors turn back into cash.

The working capital cycle of a manufacturer

Step 1

Cash

Step 2

Raw material

days in store

Step 3

Work-in-progress

days on the floor

Step 4

Finished goods

days before dispatch

Step 5

Debtors

days to collect

Step 6

Cash again

Measure each leg in days. Raw material holding is average raw-material stock divided by annual consumption, multiplied by 365. Debtor days are trade receivables divided by annual credit sales, times 365. Do the same for work-in-progress and finished goods using cost of production and cost of sales. The gross operating cycle is the sum. Subtract creditor days — average payables divided by annual purchases, times 365 — and you have the net operating cycle, sometimes called the cash conversion cycle.

The length of the cycle drives how much working capital you need. A unit with ₹1 crore of annual costs and a 90-day net cycle needs roughly ₹25 lakh tied up at all times (₹1 crore × 90 ÷ 365). Cut the cycle to 60 days and the need drops to about ₹16 lakh — ₹9 lakh freed without borrowing a rupee. That's why growing businesses feel short of cash: every extra rupee of sales needs extra stock and receivables before it produces any profit in the bank.

Traders have a shorter cycle because there's no production stage, and retailers who sell for cash have almost none — they often hold stock for fewer days than their suppliers give them, so their net cycle is negative. Service businesses carry little stock, but long payment terms from corporate clients can still stretch the cycle to 60–90 days.

The working-capital gap and why banks care about it

Bankers don't lend against net working capital directly. They compute the working-capital gap: current assets minus current liabilities excluding bank borrowings. It's the amount that has to be funded either by the bank's short-term limit or by your own long-term money.

The bank never funds the whole gap. It expects the owner to put in a share — the margin or net working capital contribution — so that the business has its own money at stake if stock loses value or a customer defaults. How big that share is depends on the assessment method, which is where the turnover method and MPBF come in.

The gap also tells you something before you meet any banker. If your gap is ₹30 lakh and you have ₹5 lakh of your own money in the business beyond fixed assets, you know you need about ₹25 lakh of short-term finance — or a shorter cycle. Plotting the gap month by month over a year shows seasonal peaks, such as a fireworks or garment maker's pre-festival build-up, which is the case for asking the bank for a seasonal or ad-hoc limit rather than a permanently higher one.

How Indian banks assess your working capital limit

Until 1997 RBI prescribed a single framework — the Maximum Permissible Bank Finance (MPBF) methods recommended by the Tandon Committee in the 1970s. RBI withdrew that prescription in April 1997, and the Economic Survey of 1997-98 recorded that banks were now free to assess working capital using methods they evolved themselves. Today each bank's board-approved loan policy sets the method, but three approaches are still used almost everywhere.

1. Turnover method (Nayak Committee) — for MSEs up to ₹5 crore

RBI's FAQs on MSME lending state that working capital limits to small units are computed on the basis of a minimum of 20% of estimated turnover, for credit limits up to ₹5 crore. The logic comes from the Nayak Committee, which took the working capital need of a small unit as about 25% of its annual output. Of that 25%, the bank funds at least 20% and the borrower brings 5% as margin. It's quick, needs only a credible sales projection and last year's accounts, and suits most micro and small units.

2. MPBF methods (Tandon) — projected balance sheet

Many banks still use Tandon's second method for larger limits, because it forces the borrower to fund a slice of current assets from long-term sources. Under Method I, the bank funds 75% of the working-capital gap and the borrower brings 25% of the gap. Under Method II, the borrower must fund 25% of total current assets, so the bank limit is 75% of current assets minus other current liabilities. Method II gives a lower limit and implies a current ratio of 1.33. The inputs come from the CMA (credit monitoring arrangement) data you or your CA prepare: last two years' actuals, the current year estimate and the next year's projection.

3. Cash budget method

For seasonal businesses — sugar, tea, cotton ginning, contractors with lumpy bills — banks may build a month-by-month cash budget and set the limit at the peak monthly deficit. It's more work, but it fits businesses whose need swings wildly through the year.

Bank working capital assessment methods compared

Method	Typical use	Bank finance	Borrower's share	What you submit
Turnover (Nayak)	MSE limits up to ₹5 crore	At least 20% of projected turnover	5% of turnover	Sales projection, last year's accounts, GST returns
MPBF Method I	Larger units (bank policy)	75% of working-capital gap	25% of the gap	CMA data with projected balance sheet
MPBF Method II	Larger units (bank policy)	75% of current assets − other current liabilities	25% of total current assets	CMA data with projected balance sheet
Cash budget	Seasonal / project businesses	Peak monthly cash deficit	Varies	Monthly cash flow projection

Turnover (Nayak)

Typical use

MSE limits up to ₹5 crore

Bank finance

At least 20% of projected turnover

Borrower's share

5% of turnover

What you submit

Sales projection, last year's accounts, GST returns

MPBF Method I

Typical use

Larger units (bank policy)

Bank finance

75% of working-capital gap

Borrower's share

25% of the gap

What you submit

CMA data with projected balance sheet

MPBF Method II

Typical use

Larger units (bank policy)

Bank finance

75% of current assets − other current liabilities

Borrower's share

25% of total current assets

What you submit

CMA data with projected balance sheet

Cash budget

Typical use

Seasonal / project businesses

Bank finance

Peak monthly cash deficit

Borrower's share

Varies

What you submit

Monthly cash flow projection

RBI also asks banks to review an MSE's working capital limit mid-year when actual sales run ahead of the projection, and to provide additional working capital for emergent needs. A composite loan of up to ₹1 crore can bundle term loan and working capital through one window. Collateral isn't required for loans to micro and small enterprises up to ₹20 lakh — the full picture is in our MSME loan guide.

Worked example 1: a small garment manufacturer

Meena runs a garment unit in Tiruppur. She projects next year's sales at ₹1.2 crore (₹10 lakh a month). Raw material is about half of sales, and total cost of production about 80%. She holds a month of fabric, work-in-progress takes about two weeks, finished goods wait a month for dispatch, buyers pay in 60 days, and her fabric supplier gives her 30 days.

Her projected current assets and liabilities at a typical month-end look like this:

Her net operating cycle is about 105 days: 30 (fabric) + 15 (WIP) + 30 (finished goods) + 60 (debtors) − 30 (creditors).

Now the bank's view. On the turnover method, need is 25% of ₹1.2 crore = ₹30 lakh; the bank funds at least 20%, i.e. ₹24 lakh, and Meena brings ₹6 lakh. Under MPBF Method I the limit would be 75% of ₹31 lakh = ₹23.25 lakh; under Method II, 75% of ₹38 lakh minus ₹7 lakh = ₹21.5 lakh. The turnover method gives her the most. Either way she must fund ₹7–9.5 lakh of the gap from her own capital or a term loan.

The bigger lesson is in the receivables line. If Meena's buyers paid in 45 days instead of 60, receivables would fall to ₹15 lakh and the gap to ₹26 lakh — ₹5 lakh less to borrow, saving roughly ₹50,000 a year at a 10% interest rate. Micro and small suppliers have a legal right to be paid within 45 days under the MSMED Act, and buyers who delay can lose the tax deduction for that expense under section 37(2)(g) of the Income-tax Act, 2025. Our MSME Samadhaan guide explains how to enforce it.

Worked example 2: a wholesale trader

Rakesh is a grocery wholesaler in Indore with projected turnover of ₹3 crore (₹25 lakh a month) and a gross margin of 8%, so purchases are about ₹23 lakh a month. He holds 20 days of stock, gives retailers 15 days' credit and gets 10 days from his distributors.

His net operating cycle is just 25 days (20 + 15 − 10). Here the turnover method misleads: 25% of ₹3 crore is ₹75 lakh, more than three times his actual gap. A trader whose stock turns over fast doesn't need a limit sized to 20% of turnover, and the bank won't let him draw it anyway — because a cash credit limit is capped by drawing power, the value of stock and debtors actually held minus the bank's margin.

Suppose his bank applies a 25% margin on stock and on receivables (margins differ by bank and are set in your sanction letter; 25% is a common figure, not a rule). Drawing power would be 75% of ₹15.3 lakh plus 75% of ₹12.5 lakh, or about ₹20.9 lakh, and many banks also deduct unpaid stock — the ₹7.7 lakh owed to suppliers — leaving about ₹13.2 lakh. A sensible request for Rakesh is a ₹15–20 lakh limit with a credible plan to grow into it, not ₹60 lakh.

Cash credit vs overdraft vs bill discounting vs TReDS

Once you know how much you need, the next question is which product to use. They differ in what secures them, how you draw them and who carries the risk if your customer doesn't pay.

Cash credit is the default limit for manufacturers and traders. You get a running account; interest is charged on the daily outstanding balance, and you can deposit sales collections to bring it down at any time. The catch is paperwork — a monthly stock and book-debt statement, an annual renewal, and periodic stock audits. Late stock statements commonly lead banks to freeze or reduce drawing power.

Overdraft works the same way but isn't linked to stock. Banks usually want a fixed deposit, property or other collateral, which makes it suitable for consultants, agencies and contractors who hold little inventory but face uneven inflows.

Bill discounting turns a specific sale into cash. You present the invoice or bill of exchange, the bank pays you the amount less a discount, and collects from your buyer on the due date. Most bank bill discounting is with recourse: if the buyer defaults, the bank recovers from you.

Working capital products for MSMEs

Product	Secured by	How you draw	Best for	Watch out for
Cash credit (CC)	Hypothecation of stock and receivables	Up to drawing power from monthly stock statement	Manufacturers and traders with steady stock	Stock audits, late stock statements cut drawing power
Overdraft (OD)	FD, property or other collateral	Up to sanctioned limit	Service firms and businesses with little stock	Usually needs collateral; annual renewal
Bill / invoice discounting	The bill or invoice (usually with recourse)	Bank pays upfront, collects from buyer	Sales to known, creditworthy buyers	If the buyer doesn't pay, you repay the bank
TReDS	Buyer-accepted invoice on an RBI-regulated platform	Financiers bid; cash in a few days	MSMEs selling to large companies and CPSEs	Buyer must be registered and accept the invoice

Cash credit (CC)

Secured by

Hypothecation of stock and receivables

How you draw

Up to drawing power from monthly stock statement

Best for

Manufacturers and traders with steady stock

Watch out for

Stock audits, late stock statements cut drawing power

Overdraft (OD)

Secured by

FD, property or other collateral

How you draw

Up to sanctioned limit

Best for

Service firms and businesses with little stock

Watch out for

Usually needs collateral; annual renewal

Bill / invoice discounting

Secured by

The bill or invoice (usually with recourse)

How you draw

Bank pays upfront, collects from buyer

Best for

Sales to known, creditworthy buyers

Watch out for

If the buyer doesn't pay, you repay the bank

TReDS

Secured by

Buyer-accepted invoice on an RBI-regulated platform

How you draw

Financiers bid; cash in a few days

Best for

MSMEs selling to large companies and CPSEs

Watch out for

Buyer must be registered and accept the invoice

TReDS (Trade Receivables Discounting System) is the MSME-specific version. Your buyer accepts the invoice on the platform, banks and NBFCs bid to finance it, and you get paid within days. PIB's July 2026 release describes TReDS financing as collateral-free and without recourse to the seller. There are 5 RBI-authorised platforms — RXIL, M1xchange, Invoicemart, C2treds and DTX — and invoice discounting on them grew from ₹40,000 crore in FY 2021-22 to ₹3.47 lakh crore in FY 2025-26.

Two recent rule changes make TReDS more useful. Companies with turnover above ₹250 crore — down from ₹500 crore, by a Ministry of MSME notification of 7 November 2024 following the 2024-25 Budget — must register on TReDS as buyers, and medium enterprises are now eligible as sellers. And under a Ministry of MSME notification dated 30 June 2026, all operating Central Public Sector Enterprises must route settlement of invoices from MSME suppliers through TReDS, with their statutory auditors certifying compliance. If you supply a large company or a CPSE, ask them to onboard you as a TReDS seller.

How to reduce how much working capital you need

Borrowing is only half the answer. Every day you take out of the operating cycle reduces the limit you need and the interest you pay.

Collect faster. Put payment terms on every invoice, follow up the day a bill falls due, and for micro and small suppliers, cite the 45 days limit in the MSMED Act. Offer a small early-payment discount if the maths works — a 1% discount for payment in 10 days instead of 60 is cheaper than most CC interest.

Hold less stock. Review slow-moving items each quarter. An economic order quantity calculation or an inventory turnover check often shows 20–30% of stock that could be cut without affecting sales.

Use supplier credit honestly. Longer terms from suppliers are free working capital, but GST rules limit how far you can stretch them: if you don't pay a supplier within 180 days of the invoice date, the input tax credit you took must be added back to your output tax. Delaying micro and small suppliers beyond 45 days also exposes you to compound interest at three times the RBI bank rate.

Separate long-term and short-term money. Machinery bought from the CC account is the most common cause of a working capital crunch. Fund fixed assets with a term loan, keep the CC for the operating cycle, and your bank's ratios — and your own cash position — will make more sense.

Common mistakes that hurt your working capital limit

Before your annual CC renewal

0/6

• Stock and book-debt statements filed by the due date every month
• Sales in the projection reconcile with GSTR-3B and bank credits
• No fixed assets or personal spending routed through the CC account
• Debtors older than 90 days followed up or provided for
• CMA data / projected balance sheet prepared by your CA
• Udyam certificate and latest ITR uploaded with the renewal request

Share Print

The most frequent reason a limit is cut at renewal is a mismatch between what you projected and what your GST returns show. Many banks now pull GST and bank-statement data directly (with your consent); if you projected ₹1.5 crore and your GSTR-3B shows ₹90 lakh, expect the limit to be resized to actual turnover.

The second is diverting the limit. Using CC money for a car, property or a loan to a relative inflates the outstanding balance without any matching stock or receivables, and it shows up in the stock audit. Third, submitting stock statements late or with round numbers — banks treat those as a red flag. Fourth, ignoring old debtors: many banks exclude receivables older than 90 days from drawing power, so a few unpaid bills can quietly shrink your usable limit.

Finally, many owners never ask for the mid-year review RBI expects banks to offer when sales grow faster than projected. If your business has grown, ask for the review with fresh GST and bank data rather than struggling until the annual renewal.

Official links

• RBI FAQs on MSME lendingTurnover method, composite loans, timelines, TReDS
• Nayak Committee report (DC-MSME)Origin of the 25% / 20% turnover method
• PIB: TReDS mandate for CPSEs (July 2026)Notification of 30 June 2026
• Companies Act, 2013 (Schedule III)Current asset, current liability and operating cycle definitions
• JanSamarth portalApply for government-linked business loans

What to do next

Work out your own operating cycle and gap with the working capital calculator, then compare the result with what the turnover method would give you. If you need a bank limit, our MSME loan guide covers documents, interest benchmarks and the collateral-free rules, and the CGTMSE guide explains how a guarantee can replace property security. To see how working capital shows up in your accounts, read our guides to the balance sheet and the cash flow statement.

This is general information, not legal or tax advice — confirm on the official source or with a professional.

Frequently asked questions

What is working capital in simple words?

Working capital is the money tied up in running the business day to day — stock, money customers owe you and cash in hand — minus what you owe suppliers and other short-term dues. If a shop holds ₹10 lakh of stock and receivables and owes suppliers ₹4 lakh, its net working capital is ₹6 lakh. That ₹6 lakh has to come from the owner's money or a bank limit.

What is the formula for working capital?

Net working capital = current assets − current liabilities. Current assets are inventory, trade receivables, cash and bank balances, short-term loans and advances and other assets you expect to turn into cash within the operating cycle or 12 months. Current liabilities are trade payables, short-term borrowings, statutory dues and other amounts due within that period. Gross working capital is current assets alone.

How do banks calculate the working capital limit for MSMEs?

For micro and small units needing up to ₹5 crore, RBI's guidance (from the Nayak Committee) is that the limit should be at least 20% of projected annual turnover. The need is taken as 25% of turnover, with the borrower bringing the balance 5% as margin. Larger borrowers are assessed on projected balance sheets (the old MPBF methods) or a cash budget.

What is the difference between cash credit and overdraft?

A cash credit limit is secured by hypothecation of your stock and receivables, and the amount you can draw each month — the drawing power — depends on the stock statement you submit. An overdraft is usually secured by a fixed deposit, property or other collateral and is not tied to stock. Both charge interest only on the amount actually used, calculated daily.

Is negative working capital bad?

Not always. A supermarket or restaurant that collects cash on the spot but pays suppliers in 30 days can run with negative working capital safely — suppliers are funding it. For a manufacturer or a B2B trader that sells on credit, negative working capital usually means short-term money has been used for long-term assets, and it is a warning sign banks look for.

What is TReDS and how does it help working capital?

TReDS is an RBI-regulated online exchange where an MSME uploads invoices accepted by its corporate or government buyer, and banks and NBFCs bid to discount them. The MSME gets cash in days, without collateral and without recourse. Companies with turnover above ₹250 crore must register as buyers, and from June 2026 all CPSEs must settle MSME invoices through TReDS.

Sources & verification

Figures on this page were checked against the sources below when it was last reviewed on 8 October 2026. Each rate and limit is stored once with its own official source and review date, and official update channels are monitored daily so changes are picked up. How we verify

1. 1.FAQs on MSME lending (Q.7 working capital assessment, Q.8 composite loan, Q.25 TReDS) — Reserve Bank of India · accessed 8 October 2026
2. 2.Report of the Nayak Committee on credit to SSI units — Office of the DC (MSME), Ministry of MSME · accessed 8 October 2026
3. 3.Economic Survey 1997-98, Chapter on money and banking — Ministry of Finance · accessed 8 October 2026
4. 4.Companies Act, 2013 — Schedule III, Division I (General Instructions for Balance Sheet) — India Code (Legislative Department) · accessed 8 October 2026
5. 5.Government mandates TReDS for settlement of all MSME invoices by CPSEs — PIB (Ministry of MSME) · accessed 8 October 2026
6. 6.Union Budget 2024-25: eight new measures for MSMEs — PIB (Ministry of Finance) · accessed 8 October 2026
7. 7.Mandatory TReDS registration for companies above ₹250 crore turnover — Singhania & Co. · accessed 8 October 2026