Cash flow
7 early warning signs of a cash flow crunch
Spot the pressure before it hits payroll — and the levers you can pull to fix it fast.
Most Singapore SMEs that run into trouble are not unprofitable. They are illiquid. There is a difference, and it is the difference that closes businesses. You can be winning contracts, growing revenue and still be unable to pay your staff on the 28th — because the money you have earned has not arrived yet.
Working capital is the buffer that covers that gap. This guide explains how to work out how much you actually need, how to structure it, and when borrowing makes sense versus when it papers over a deeper problem.
What working capital actually means
In accounting terms, working capital is current assets minus current liabilities. In practice, it is the cash you need on hand to run the business between the moment you pay for something and the moment you get paid for it.
That interval has a name: the cash conversion cycle. It is the single most useful number for understanding your own cash pressure, and most SME owners have never calculated it.
Calculate your cash conversion cycle
The cycle is made up of three parts:
- Days inventory outstanding — how long stock sits before you sell it.
- Days sales outstanding — how long customers take to pay you after invoicing.
- Days payable outstanding — how long you take to pay your own suppliers.
Cash conversion cycle = inventory days + receivable days − payable days. The result is the number of days your own money is tied up in the business before it comes back.
Multiply your average daily operating cost by your cycle length and you have a realistic working capital requirement. If your monthly costs are S$60,000, that is S$2,000 a day — and a 70-day cycle implies S$140,000 tied up in the business at any moment.
How the cycle differs by industry
The right amount of working capital depends heavily on how your sector trades.
- F&B — inventory turns in days and customers pay instantly, so the cycle is short. Pressure comes from rent, manpower and seasonality rather than receivables.
- Retail and e-commerce — the squeeze is inventory. You buy stock ahead of a peak, then wait to sell it. Cash is locked in goods, not invoices.
- Trading and wholesale — the worst of both. You pay suppliers upfront, hold goods, then wait 60 to 90 days for a corporate buyer to settle.
- Professional services — low inventory, but long receivable cycles with large clients who pay on their own schedule, not yours.
Four ways to shorten the cycle before you borrow
Financing is not always the first answer. Before taking on cost, look at whether the cycle itself can be compressed:
- Invoice faster. Many SMEs lose a week simply by batching invoices at month end rather than issuing on delivery.
- Tighten terms selectively. You may not be able to change terms with a large anchor client, but you can with smaller ones.
- Negotiate supplier terms. Moving from 30 to 45 days payable directly shortens your cycle by 15 days at no cost.
- Clear slow-moving stock. Inventory that has not moved in six months is working capital sitting on a shelf.
When financing is the right answer
Borrowing makes sense when the gap is structural and temporary rather than a symptom of an unprofitable business. Good reasons to finance working capital include funding a confirmed large order, bridging a known receivable, buying stock ahead of a predictable peak, or taking a supplier discount that exceeds the cost of the facility.
Borrowing to cover ongoing operating losses is a different situation. If the underlying business does not generate enough margin, a loan postpones the problem and adds cost to it. An honest lender will tell you this.
Matching the facility to the need
- Short, recurring cash flow gaps — an unsecured working capital loan with fixed monthly repayments.
- Cash locked in unpaid invoices — invoice financing, which releases money you have already earned.
- Supplier payments and purchase orders — trade financing, repaid when the trade settles.
- A defined, short-term timing gap with a known repayment source — a bridging loan.
Compare all four facilities side by side
Know the real cost before you commit
Compare facilities on total cost over the life of the loan, not just the headline monthly rate. A short facility at a higher monthly rate can cost less in absolute terms than a longer one at a lower rate. Ask for the full repayment schedule, every fee, and the early settlement terms in writing before signing anything.