Foreign Exchange Risk on China Orders: Test the Margin Before You Pay

If a China order is priced in USD or CNY while the importer earns revenue in Australian dollars, the AUD cost remains uncertain until each foreign-currency payment is converted or otherwise fixed under an arrangement appropriate to the business.

The first control is simple: record the exact foreign-currency amount still unpaid, its payment dates and the exchange rate used in the commercial model. Then recalculate the order at weaker and stronger AUD scenarios. Use the result as one input to the order's landed-cost model, rather than treating the supplier invoice as the complete cost base. Do not begin with a currency forecast or a product recommendation.

This article is general educational information, not financial, tax or financial-product advice.

Start with the currency actually owed

The supplier's country does not by itself identify the buyer's currency exposure. A Chinese supplier may quote in USD, CNY/RMB, AUD or another currency. Record the invoice currency and fixed foreign-currency amount in the accepted commercial documents.

For an AUD/USD quote, the Reserve Bank of Australia explains that the rate shows how many US dollars one Australian dollar buys. At AUD/USD 0.65, AUD 1 buys USD 0.65. To translate a USD invoice into AUD for a simple sensitivity model:

AUD cost = USD invoice amount ÷ AUD/USD rate

For a direct AUD/CNY quote, use the same structure with the relevant pair: CNY amount divided by CNY per AUD. Confirm the quotation convention before calculating; reversing the pair produces the wrong answer.

ABS data show that USD represented 55.7% of Australian merchandise import invoice value in 2023–24, while AUD represented 31.9% and RMB 1.4%. These are economy-wide shares, not China-only shares, but they show why an importer should read the invoice rather than assume RMB is the exposure.

Hypothetical AUD/USD sensitivity example

Assume a supplier invoice of USD 60,000. The rates below are invented scenarios, not current quotes or forecasts. Conversion fees and spreads are excluded.

When the AUD/USD rate falls from 0.65 to 0.60, each Australian dollar buys fewer US dollars. The AUD required for the USD 60,000 invoice rises by AUD 7,692.31, or 8.33% relative to the 0.65 case. When the rate rises to 0.70, the modelled AUD cost falls by AUD 6,593.41, or 7.14%.

The percentage changes are not symmetrical because the foreign amount is divided by the rate. A five-cent movement should therefore be converted into AUD rather than described only as “five cents”.

A modest FX cost change can have a larger margin effect

The commercial concern is not just product cost. It is the remaining contribution after other variable costs.

Hypothetical assumptions:

• net sales receipts: AUD 180,000;
• non-product variable costs: AUD 45,000;
• supplier invoice: USD 60,000; and
• no FX fees or other cost changes.

Percentage and difference figures use the unrounded conversions. Adding or subtracting the displayed two-decimal cells can therefore differ by one cent.

The invoice cost rises 8.33% in the weaker-AUD scenario, but the stated contribution falls about 18.02% because the currency change is absorbed by a smaller residual amount. A business with a thinner starting margin would experience greater sensitivity.

This is not a profit forecast. It excludes overhead, returns, tax, financing, unsold stock and other costs. Its purpose is to expose the decision's sensitivity before the price or purchase commitment is fixed.

Split payments create multiple exposure dates

Many orders have more than one payment. The foreign-currency total may be fixed while its AUD cost changes between instalments.

Hypothetical example: a USD 100,000 order has USD 30,000 paid when AUD/USD is 0.66 and USD 70,000 paid later at 0.61. Fees and spreads are excluded.

If the entire USD 100,000 had converted at 0.66, the illustrative cost would have been AUD 151,515.15. The later rate in the split-payment scenario adds about AUD 8,693.50 before fees.

The practical record is therefore the unpaid exposure by date, not only the purchase-order total. A passed production milestone can release the commercial payment obligation while the AUD funding requirement remains rate-sensitive.

Separate four rates and costs that are often confused

1. Planning rate: the internal assumption used to test price and margin.
2. Reference or market rate: a published benchmark used for comparison.
3. Executable customer rate: the rate a provider will actually apply to the conversion at the relevant time.
4. Customs conversion rate: the rate used under Australian import valuation rules.

There may also be transaction fees, correspondent charges or a difference between the reference and executable rate. The AUD cash forecast should use the executable amount expected to leave the account, not assume a public reference rate will be available.

Australian Border Force says foreign currency is converted for customs purposes using the exchange rate prevailing on the day the goods are exported, not the day they arrive. That customs rate does not establish the rate a bank or payment provider applies when the supplier is paid. Tax accounting can involve additional translation and forex gain/loss rules; the ATO notes that a difference between the rate when an amount is incurred and when it is paid can create a forex gain or loss. Obtain case-specific accounting advice.

AUD invoicing changes the exposure; it does not make currency irrelevant

If a supplier fixes an amount in AUD, the Australian buyer's direct invoice conversion risk may be reduced for that committed amount. But the quote may include a conversion margin, a short validity period or a repricing clause. The supplier can also face currency pressure that influences future quotations.

Before accepting any invoice currency, record:

• fixed amount and currency;
• quote expiry and price-validity conditions;
• deposit and balance dates;
• any exchange-rate adjustment clause;
• which party pays transfer and intermediary charges;
• permitted recipient account and verification process; and
• what happens if production or payment is delayed.

Do not assume a mid-order request for an “exchange-rate adjustment” is allowed or prohibited. Check the signed commercial terms and obtain legal advice where the amount or dispute warrants it.

Build a simple FX exposure register

The register should be updated whenever the order amount, timing or invoice currency changes.

For each row, calculate the AUD requirement and effect on contribution. Add the expected transfer date, value date, payment deadline and fees. A transfer initiated on the due date may not be operationally equivalent to funds received by the supplier on that date.

Set governance before choosing any response

A business can define its risk process without selecting a financial product in an editorial article. Useful policy questions include:

• What foreign-currency commitments require approval?
• Which internal rate is used for quoting and purchase decisions?
• What weaker-AUD scenarios are tested?
• At what contribution or cash threshold must the order be repriced, resized or escalated?
• Who can change the payment date or invoice currency?
• How are actual conversion rate, spread and fees recorded against the plan?
• When is advice from an appropriately authorised financial adviser, accountant or treasury specialist required?

Foreign-exchange products can involve cost, counterparty, liquidity, documentation and regulatory considerations. Suitability depends on the business and transaction. Seek appropriately authorised advice before entering a product or strategy you do not understand.

Pre-order FX checklist

• The accepted invoice states the fixed currency and amount.
• Every instalment has an expected payment and value date.
• The AUD conversion formula uses the correct pair convention.
• Base, weaker-AUD and stronger-AUD scenarios have been calculated.
• The effect on contribution margin and cash-flow trough is visible.
• Reference rate, executable rate, spread, fees and customs rate are separated.
• Quote-expiry and currency-adjustment clauses are understood.
• Changes to recipient or account details require independent verification.
• Tax/accounting treatment has been referred where material.
• Any financial-product decision is outside the article and receives appropriate advice.

Manage the exposure, not the prediction

An importer does not need to predict AUD/USD or AUD/CNY to understand the order's vulnerability. It needs the foreign amount, payment dates, a transparent conversion formula and decision thresholds.

Calculate the unpaid exposure at several labelled hypothetical rates, translate the result into margin and cash-flow consequences, and update the register before each commitment. If a plausible internal scenario makes the order uneconomic or unfundable, address the commercial plan before the balance falls due.

Sources

1. Reserve Bank of Australia — Exchange rates and their measurement
2. Reserve Bank of Australia — Drivers of the Australian dollar exchange rate
3. Australian Bureau of Statistics — Export and Import Invoice Currencies, 2023–24
4. Australian Border Force — Exchange rates when paying for imported goods
5. Australian Taxation Office — Guide to functional currency rules
6. Reddit r/wisebank — paying a supplier in China from Australia (anecdotal audience research only)
7. Reddit r/smallbusiness — supplier request for exchange-rate loss (anecdotal audience research only)