What it means
Anyone doing business in Vietnam quickly notices the big figures. A simple meal can cost tens of thousands of dong, and a month's rent for an apartment can run into the millions.
The numbers look dramatic but reflect the low value of each unit rather than high prices. The State Bank of Vietnam manages the currency and sets its policy.
The exchange rate is not freely floating in the way that some major currencies are. Instead it is managed within a framework in which the central bank publishes a reference rate and allows the market rate to move within a band around it.
For international business, this matters in several ways. Exporters who are paid in dollars must convert to dong to pay local wages and suppliers.
Importers and foreign investors who need dong face exchange rate risk if the rate moves between the date of agreement and the date of payment. Companies handle this risk through hedging tools such as forward contracts, by invoicing in dollars where possible or by matching currency of costs and revenue.
Finance teams need to model both the local currency and the dollar cost of projects. Currency controls and documentation rules can also affect how easily funds are moved in and out of the country.
Writing and reading large currency amounts needs care. It is easy to misplace a zero when dealing with millions and billions of dong, so many companies use thousands or millions as the unit in reports.
Always label the currency and the unit clearly. The word also appears in conversation about other topics.
Analysts compare the dong with other emerging market currencies when assessing trade competitiveness, inflation and foreign investment. A stable currency is generally seen as supportive for long-term investment.
In practice
Real-world examples.
Example
A clothing retailer in Europe buys garments from a Vietnamese factory and pays in dollars. The factory converts the dollars to dong to pay its workers, and a weaker dong helps its profit margin. The retailer asks for dollar pricing in the contract, so it carries less currency risk.
Example
A technology company opens a development office in Ho Chi Minh City. Its finance team budgets salaries in dong and updates the dollar forecast each month as the exchange rate moves. Her team also builds a buffer of about 5% into the budget to cover exchange rate swings.
Example
A tourist exchanges $200 at the airport and receives several million dong. She finds that she must check carefully when paying, because it is easy to misread the number of zeros on banknotes. She is relieved to learn that the large amounts shown on menus convert to modest sums in her own currency.
Formula
Calculation
Amount in dollars = amount in dong / exchange rate (dong per $1)
Amount in dong = amount in dollars x exchange rate
Worked example: Assume, for illustration only, an exchange rate of 25,000 dong per $1. A Vietnamese supplier invoices a company 500,000,000 dong.
Amount in dollars = 500,000,000 / 25,000 = $20,000.
Now suppose the rate moves to 26,000 dong per $1. The same invoice is worth 500,000,000 / 26,000 = $19,230.77 (rounded). The foreign buyer pays about $769 less in dollar terms because the dong has weakened.
Actual rates change continually and the figures here are assumptions chosen for easy arithmetic.Case study
Seen in the real world.
Lotus Garments is a fictional exporter that sells clothing to buyers in the United States and pays its Vietnamese suppliers in dong. Its income is in dollars, but most of its costs are in the local currency.
In this illustrative case, the dong strengthened by several per cent against the dollar over a year. The company's local costs rose in dollar terms and profit margins narrowed, even though sales were unchanged.
The finance manager arranged forward contracts to sell a portion of expected dollar revenue at a fixed rate and agreed to price part of its orders with an adjustment clause. The next year, profit was steadier. The illustrative lesson is that a currency mismatch between revenue and costs creates risk that can be managed. The company now reviews its currency exposure every quarter and reports the hedged and unhedged amounts to the board.
Watch out
Common mistakes.
- Assuming large numbers mean high prices. Dong amounts look big because each unit has low value, so always convert before judging cost. A quick conversion into your own currency avoids costly misjudgements.
- Ignoring exchange rate risk on contracts. A delay between invoice and payment can change the dollar value of the deal. Agree whether the price is fixed in dollars or in dong, and who bears the risk of a move.
- Misplacing zeros in reports or contracts. Use consistent units and label the currency clearly. Writing amounts in millions with a clear label makes errors much less likely.
Questions
People also ask.
What is the currency code for the dong?
It is VND, which is used on invoices, in banking systems and in financial reports. It follows the standard three-letter code system used for world currencies.
Who issues the dong?
The State Bank of Vietnam is the central bank and issuing authority. Its role includes setting monetary policy, managing reserves and publishing a reference exchange rate.
Is the dong freely traded?
It is a managed currency with controls on its movement, so international businesses should check the rules for converting and transferring funds. Rules on transfers, documentation and repatriation of profits can apply, so local advice is sensible.
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