Mastering Working Capital and Project Cost for Your Small Business

Setting up a business is only half the story. You can buy the machinery, rent the shop, and install the equipment, but none of that puts a single rupee in your pocket until you actually sell something. Between the day you spend money on raw materials and the day a customer pays you, there is a gap. That gap has to be funded, and the money that funds it is called working capital. Understanding how this money flows, how long it stays locked up, and how to estimate the full cost of a project is one of the most practical financial skills any entrepreneur can have.

Why every business needs working capital 🔗

Once the fixed assets of a business are in place, you still need a steady supply of money to keep daily operations running. This money pays for raw materials, salaries, rent, electricity, and other services right up until your products are sold and the sale proceeds come back to you. This pool of funds is working capital, and it is often described as the lifeblood of an enterprise because operations stop the moment it dries up.

Fixed capital and working capital serve very different purposes. Fixed capital is a one-time cost spent to build and start the business, and it is not recovered until the asset is sold. Working capital is an additional investment on top of that, needed to actually run the plant until income starts flowing in. Think of fixed capital as building the kitchen and working capital as buying the groceries to start cooking and serving.

This is not a small or rare problem. According to the Reserve Bank of India, the funding gap faced by smaller enterprises runs into lakhs of crores of rupees every year, which is why so many promising businesses stall not because their product is bad but because they run out of cash at the wrong moment.

The operating cycle and its three stages 🔗

To understand how much working capital you need, you first have to understand the operating cycle. The operating cycle is the length of time it takes to convert money spent on raw materials back into cash from sales. The longer this cycle, the more working capital your business will need to stay afloat, while a shorter cycle reduces the need for external funding.

Stage one: stocking 🔗

The first stage is the time taken to buy raw materials and hold them in stock until they are needed for production. Every business keeps a buffer of raw material so that production does not stop. The money spent on this stock stays tied up until those materials move into the production line. This stage is also called the inventory holding period for raw materials.

Stage two: production 🔗

The second stage is the time taken to convert raw materials into finished products. During this period, the materials are being worked on, and additional costs like labour and power are being added. The goods sitting in this in-between state are often called work-in-progress. A longer production process keeps money locked up for more days.

Stage three: sales realisation 🔗

The third stage covers the time taken to reach buyers and actually collect the money. This includes the time finished goods wait in storage before being sold, and crucially, the time customers take to pay. When you sell on credit, the cash does not arrive immediately, so this stage stretches out. The accounts receivable period is the gap between making a sale and receiving payment.

Calculating the length of the operating cycle 🔗

The total operating cycle is simply the sum of these three stages. Let us work through a clear example using a small manufacturer named Mustafa.

Suppose Mustafa’s stages look like this:

Stocking period: 7 days to buy and maintain raw material stock.
Production time: 7 days to convert raw material into finished goods.
Sales realisation: 15 days, because he sells to retailers on credit and waits for them to pay.

Adding these together: 7 + 7 + 15 = 29 days. This means Mustafa’s money stays locked up for almost a full month before it comes back to him as cash. He therefore needs enough working capital to keep the business running for roughly one month at a time, because that is how long one complete cycle takes before the cash returns and the next cycle can be funded.

This is a recurring challenge for small and medium enterprises across the country, where longer cycles strain liquidity and push businesses toward short-term borrowing. The problem is serious enough that the law steps in: under the MSME Development Act, buyers are generally required to make payments within 45 days, which is designed to stop the sales realisation stage from stretching out indefinitely and choking small suppliers.

Calculating the working capital needed 🔗

Once you know the cycle length, calculating working capital is straightforward. Working capital is the total funds required to cover all the expenses of one complete operating cycle. You add up everything the business spends during that period.

For Mustafa, the calculation for one month would be:

Cost of raw materials for one month: Rs. 30,000.
Overheads such as rent, salaries, and miscellaneous expenses for one month: Rs. 10,000.

Total working capital required = 30,000 + 10,000 = Rs. 40,000.

This Rs. 40,000 is the money Mustafa must have ready to spend before any sales proceeds come back to him. If he has less than this, he will run short midway through the cycle, unable to buy materials or pay wages, and operations will grind to a halt even if his order book is full.

Putting together the total project cost 🔗

Working capital is only one piece of the larger picture. When you plan a new venture, you must estimate the total project cost, which is the full amount of money needed to set up and run the business until it becomes self-sustaining. This figure has three main components.

Fixed capital 🔗

This covers all the fixed assets such as machinery, equipment, furniture, and any one-time pre-operating expenses incurred before the business starts running. In essence, fixed capital is everything spent to bring the project from idea to start-up.

Working capital for one operating cycle 🔗

As discussed, this is the money needed to fund one full cycle of operations. It is the second major component and the one most often underestimated by new entrepreneurs, who focus on machinery and forget they also need cash to run the machine.

Contingencies 🔗

No estimate is ever perfect. Prices rise, deliveries get delayed, and unexpected costs appear. To absorb these deviations, project planners add a contingency provision, usually around 5 to 10 percent of all the expenses. This cushion keeps the project from collapsing the moment something goes slightly wrong.

For Mustafa, if his fixed capital is Rs. 10,000 and his working capital is Rs. 40,000, his core project cost works out to Rs. 50,000, to which a contingency margin would be added on top. The exact contingency figure depends on how uncertain the costs are, but it is never skipped.

Where the money comes from 🔗

Knowing the total project cost is one thing; arranging that money is another. Funds for a project can be drawn from several sources, and most entrepreneurs use a mix rather than relying on any single one.

Own capital: The promoter’s own savings are usually the first source. Lenders almost always expect the promoter to put in a portion themselves, commonly called the margin or equity, because financiers rarely fund the entire requirement through a loan.

Borrowings from relatives and friends: Informal funding from people who trust you is often quicker and cheaper than a formal loan, especially in the early days.

Bank and institution loans: Banks and financial institutions are the backbone of business finance. For smaller units, the government’s guidance to banks sets the working capital limit at a minimum of 20 percent of estimated annual turnover for enterprises up to a credit limit of Rs. 5 crore, under what is known as the turnover or Nayak Committee method. This gives a quick, standardised way for a small business to estimate how much a bank may lend.

Grants and subsidies: The government runs many schemes to support small enterprises. Programmes like the Prime Minister’s Employment Generation Programme offer a capital subsidy of 15 to 35 percent depending on location and category, while collateral-free credit is available through guarantee schemes set up by the Ministry of MSME and SIDBI. These can significantly reduce how much you need to borrow on commercial terms.

Credit from suppliers: When suppliers let you pay for raw materials after a delay, they are effectively financing a part of your working capital. This trade credit shortens the amount of cash you need upfront and is one of the most overlooked sources of funding for small businesses.

Bringing it all together 🔗

The logic flows in a simple sequence. First, work out how long your operating cycle is by adding the stocking, production, and sales realisation periods. Next, estimate the working capital needed to fund one full cycle by totalling all expenses for that period. Then add fixed capital and a contingency margin to arrive at the total project cost. Finally, plan a realistic mix of funding sources to cover that cost. Getting this sequence right is the difference between a business that runs smoothly and one that stalls because the cash ran out before the customer paid.

What do you think? If a business could shorten just one stage of its operating cycle, which stage would free up the most cash for a typical small manufacturer, and why? And how would you decide the right balance between your own capital and borrowed funds when arranging the project cost?

References

1. https://indiafreenotes.com/working-capital-based-on-operating-cycle/
2. https://www.sciencedirect.com/topics/engineering/fixed-capital-investment
3. https://www.airtel.in/blog/business-loan/working-capital-cycle/
4. https://tallysolutions.com/business-guides/working-capital-cycle-formula/
5. https://www.bajajfinserv.in/working-capital-cycle
6. http://ngunakua.blogspot.com/p/componentsof-capital-cost-of-project.html
7. https://msme.gov.in/faqs/q27-how-do-banks-assess-working-capital-requirements-borrowers
8. https://www.hdfc.bank.in/msme-banking/msme-government-schemes