How much money you actually need to start — and the number nobody budgets for

Ask a first-time owner what they need to start and the number comes out built like this: deposit, fit-out, equipment, stock, licences, and something round on top for safety. It is a careful list. It is usually accurate. It is roughly half the answer.

The money a business needs arrives in three buckets, and only the first is a list of things you buy.

Bucket one: what it costs to open

The visible one. Deposit and advance rent, fit-out, equipment, opening stock, registrations and professional fees, signage, launch marketing, and the deposits utilities want before they connect anything.

Two adjustments most first budgets need:

• The security deposit is larger than people plan for. Commercial deposits in Indian cities have run six to ten months of rent, nearer three to six in newer Grade A space. It is refundable at the end of the tenancy and unavailable to you for the whole of it — so budget it as spent, not as an asset you hold.
• Assume a second round of capex. Something about the first setup will be wrong: the layout, a machine that is the wrong size, a counter facing the wrong way. Owners who budget nothing for this end up funding it out of working capital, which is the worst available source. Ten to fifteen per cent of setup cost, deliberately held back, is not padding.

Bucket two: the working capital cycle, which is not a cushion

This is the bucket that closes businesses, and the reason is that it is structural rather than one-time. It does not get spent and finish. It sits inside the business permanently, and it grows.

The arithmetic is short:

Cash cycle = days of stock + days your customers take to pay − days you take to pay suppliers

Say you hold 30 days of stock, your business customers pay in 45 days, and your suppliers give you 15. Your cycle is 30 + 45 − 15 = 60 days. At any given moment, about two months of your cost of sales is sitting outside your bank account — on your shelf and in invoices not yet paid — and you are the one funding it.

Now the part that catches people. That requirement scales with revenue. Double your sales and you need roughly double the working capital to carry the same 60-day cycle. Growth does not relieve the pressure, it is the pressure. A business can be profitable on every single order and still run out of money, and it happens most often to the ones that are working.

So the useful question is not “how much cushion should I keep”. It is: at the monthly revenue I expect in month twelve, how much cash will be tied up in my cycle — and do I have it?

Three levers change the answer, and each is far easier to design in before you open than to fix afterwards:

• Days of stock. Every extra week of inventory is cash sitting on a shelf. It buys availability and it costs liquidity, and the trade is yours to set deliberately.
• Days to collect. The most expensive thing you can do without noticing is grant credit terms because a customer asked and refusing felt rude. Thirty days of credit on ₹5 lakh of monthly sales is ₹5 lakh of your money financing your customer, permanently, for as long as you both trade.
• Days to pay. Supplier credit is the cheapest working capital in existence, and it is negotiable — more so once you have a payment record worth pointing at.

One rule on your side, if you are registered

If you are a Udyam-registered micro or small enterprise and your buyer is a business, income tax law disallows the buyer's deduction for your invoice unless they pay within 45 days where there is a written agreement, or 15 days where there is not. It arrived as Section 43B(h) and has carried into the Income-tax Act, 2025 under renumbered provisions.

Note carefully what it does and does not do. It gives your buyer a tax reason to pay you, but the consequence lands at their year end, not on day 46. It covers micro and small suppliers only, not medium. And it works only if you are actually Udyam-registered and the buyer knows it — which means saying so on the invoice.

Separately, the MSMED Act entitles a micro or small supplier to compound interest, with monthly rests, at three times the RBI bank rate on a delayed payment — around 16.5% a year at the bank rate prevailing when this was written — enforceable through the MSME Samadhaan portal before a state Facilitation Council. Owners rarely invoke it against a customer they want to keep. It is still worth knowing it exists, because an entitlement is what makes a polite reminder credible.

Bucket three: your own runway

The bucket almost nobody writes down.

A business that is going to work still takes months to pay its owner properly. Between opening and that point, your household runs on savings. The most common reason a viable business closes is not that the business failed — it is that the owner ran out of personal money first and had to take a job, or pull cash out at precisely the moment the business needed it to grow.

So: monthly household expenses, multiplied by the number of months you honestly expect before the business can pay you, plus a margin because that estimate is optimistic in almost every case. Six months is the common answer. Twelve is the safer one. And it has to be separate money — not “I'll take it from the business if I need to”, because the month you need it is the same month the business does.

Putting it together

A worked example. A retail unit at ₹50,000 rent, expecting ₹6 lakh of monthly sales at 25% gross margin by the end of year one, holding 30 days of stock, selling mostly for cash, with 20 days of supplier credit.

• Setup — deposit at six months ₹3,00,000; fit-out and equipment ₹6,00,000; opening stock ₹4,50,000; registrations and fees ₹40,000; signage and launch ₹60,000. ₹14.5 lakh.
• Second-round capex at 12% of setup. ₹1.75 lakh.
• Working capital — cost of sales is ₹4.5 lakh a month, about ₹15,000 a day. A cycle of 30 + 0 − 20 = 10 days is ₹1.5 lakh. Modest, because this business collects at the till. Give the same shop 45-day B2B customers and the cycle becomes 55 days and the requirement ₹8.25 lakh — same shop, five and a half times the working capital.
• Losses until breakeven — the monthly gap between opening and the month fixed costs are covered, added up. At ₹1.2 lakh a month for five months, ₹6 lakh.
• Personal runway — nine months of household costs, held outside the business entirely.

The setup number was the easy one and the smallest surprise in the list. Everything after it is where the real requirement lives — and notice that a single decision, whether you sell for cash or on credit, moved the total by more than any line in the setup budget.

One last thing, on where the money comes from: match the funding to the bucket. Equipment is a term loan — a long asset funded by a long liability. A working capital cycle is permanent, so it wants permanent money: your own capital, or a cash credit or overdraft limit that revolves. Funding a permanent cycle with a short-term loan from a friend, repayable in six months, is how a growing business ends up distressed while its P&L still looks healthy.

Nobody runs out of money because they got the fit-out quote wrong. They run out because the cycle grew with the business, and nothing in the plan said it would.

The 45-day rule, the interest entitlement and the MSME classification behind them all carry conditions worth checking against your own facts at msme.gov.in, or have Vyavsay AI work out the capital requirement for your sector, your terms and your expected revenue.

The figures in the example are illustrative. Deposit norms, credit terms and margins vary widely by sector and city, and the tax provisions referred to have been renumbered under the Income-tax Act, 2025 — treat this as a method for building your own number, not as your number.