There's a harsh truth in business: a store can be "profitable" on paper but still collapse from running out of cash. Profit and cash are two different things, and many Vietnamese household businesses stumble not because of poor sales, but because they can't manage cash flow and capital. This post outlines the core principles to ensure your store doesn't just survive but grows.
Profit is not cash — understand this first
You may sell a lot of goods (and be profitable), but if the money is still tied up in inventory, in customer receivables not yet collected, or has been withdrawn for personal spending — you may still not have enough cash to restock inventory, pay wages, or pay rent. Cash flow (actual money moving in and out) is the lifeblood that keeps a store alive, while profit is just a result on the books.
Principle 1: Absolutely separate household money from business money
This is the foundation of everything. When sales revenue, grocery money, and children's school fees all sit in the same pocket, you'll never know if your store is truly profitable or losing money, and you'll easily "eat into" your business capital without realizing it.
How to do it:
- Open a separate bank account for business (from 2026, this will also be a requirement for transparent tax reporting).
- Each month, "pay yourself a salary" — a fixed amount transferred to your personal account — all household expenses come from there, not directly from business funds.
Principle 2: Know your true cost of goods to avoid "false profits"
Many household business owners calculate cost of goods to include only purchase costs, forgetting other expenses: utilities, rent, shrinkage, shipping fees, e-commerce platform fees, and now taxes (when exceeding taxable thresholds). The result is thinking you're making good profits when margins are actually thin.
How to do it: list all monthly expenses, divide by revenue to get the true expense ratio. Doing this once a quarter is enough to see trends and price correctly.
Principle 3: Manage working capital and inventory
Capital tied up in inventory is dead capital. Buying in bulk to get better prices sounds attractive, but if sales are slow, that "savings" turns into interest expenses on loans, risk of obsolete goods, and frozen cash.
How to do it:
- Track average days of inventory: only consider buying in large quantities for fast-moving items.
- Balance the cash conversion cycle: the time from when you spend money on inventory to when you collect cash from sales. The shorter the cycle, the healthier the cash flow.
- Manage receivables: if you extend credit to customers, monitor closely and have collection policies — selling without collecting is the same as not selling at all.
Principle 4: Keep a cash cushion for business
Just as individuals need an emergency fund, stores also need a cash reserve for when revenue drops (low season, disruptions), or to seize opportunities for good purchasing prices. Don't let all your capital sit in inventory — always keep a portion liquid.
Principle 5: Borrow from legitimate sources, prepare in advance
When needing capital to expand or bridge short-term cash flow gaps, many households choose daily-interest informal loans because they're "quick and easy" — an expensive trap. Meanwhile, household businesses can absolutely access bank loans at much lower interest rates, if they have documentation.
How to do it: maintain sales records and cash flow through bank accounts — this is precisely the credit history banks need to lend. The transition to tax filing and using electronic invoices from 2026, though initially inconvenient, actually helps you build this transparent documentation. Prepare before you need it, don't wait until you're in a cash crunch to inquire.
In summary: managing money is managing survival
A healthy household business isn't the one that sells the most, but the one that controls cash flow: knowing where money is, what the true cost of goods is, whether capital is stuck in inventory, and whether there's enough cash for difficult times. This is a tedious discipline, but it determines who survives and grows, and who must close up shop.
Want to review your store's cash flow health? Ask [Sirifin's AI advisor](/vi/ai-advisor) for analysis tailored to your specific situation, or [schedule with a household business financial expert](/vi/advisors).
Content is for informational and financial education purposes, not tax or financial advice for specific cases.
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