NovIncome and obligations in different currencies create a separate mismatch
A property-investment framework for mapping income, costs and future obligations by currency without turning exchange-rate uncertainty into a forecast.
This article reflects the named expert’s practical perspective. See NovAsia’s editorial policy for how material is prepared and reviewed.
A property can perform well in the currency in which its rent is quoted and still create a financing problem for its owner. That happens when income arrives in one currency while a significant obligation has to be met in another. The investment then carries a mismatch that is separate from vacancy, maintenance, price risk or the quality of the building.
Cambodia makes this worth thinking about because the financial system remains highly dollarised while the Khmer riel is the national currency. The National Bank of Cambodia’s Financial Stability Review 2025 reported a high share of foreign-currency deposits. That does not tell us the currency of any particular SPA, lease, utility bill, tax payment or bank transfer. Those must be established from the relevant documents. The macro fact simply reminds us that more than one currency can matter in the owner’s real cash flow.
Put a currency label beside every important line
Assume a hypothetical apartment produces USD 1,000 a month in rent. If the purchase was also discussed in US dollars, the owner may conclude that there is little currency exposure. That conclusion can be premature.
The owner might have local expenses in riel, a renovation quotation in another currency, a personal debt in their home currency or a future instalment whose contractual currency is different from the rent. Converting every line into dollars at today’s rate makes the spreadsheet tidy, but it can hide which amounts will have to be converted again later.
My first step is therefore descriptive. Which currency generates the income? Which currency defines each obligation? Where does conversion actually happen? Who determines the rate used at that point? Only after those questions are clear does a common reporting currency become useful.
The mismatch can continue long after acquisition
Property buyers often focus on exchange rates during the initial purchase and then treat currency as a completed problem. Ownership keeps producing payments.
Rental income may arrive in one currency. Building charges, local services, repairs and professional fees may arise in another. The owner may keep savings elsewhere. A large future replacement cost or an instalment can create a new conversion requirement months or years after the acquisition.
That does not mean every small expense deserves an exchange-rate model. Materiality matters. A modest local bill should not receive the same analytical weight as a major contractual payment. The purpose is to identify the currency movements that can change the owner’s ability to meet an obligation, not to turn property ownership into daily FX trading.
One exchange rate does not describe the whole route
Consider a hypothetical investor who expects USD 12,000 of annual rental income but has an obligation equivalent to USD 8,000 in another currency one year from now. It is tempting to say that the rent “covers” the payment. Yet the actual amount of income required will depend on the exchange rate when the obligation is funded, along with any conversion costs and the payment route.
I avoid trying to forecast that rate. I ask how much movement the owner’s budget can absorb. If a 10% or 15% adverse move would force a new cash injection, that is valuable information even if nobody knows whether the move will occur.
This is the difference between an FX forecast and an FX stress test. The first tries to predict the future. The second defines the owner’s dependence on it.
Currency reserves and property returns answer different questions
A buyer may decide to keep part of the future obligation funded in its own currency. That can reduce the need for a last-minute conversion, but the appropriate method depends on the individual’s banking access, costs, tax position and broader finances. I avoid turning that into a universal recommendation.
For the property model, the important consequence is simpler: money reserved to protect a future currency obligation is not freely available investment capital. If the headline return looks attractive only because that reserve is ignored, the model is overstating how much capital the owner can deploy elsewhere.
A currency buffer should therefore sit beside the property case, not disappear inside a single percentage return.
The exit creates another conversion point
The currency story can change again when the asset is sold. The local sale price may be expressed in one currency while the investor measures wealth in another. Transaction costs can have their own currencies, and the date of conversion can affect the final home-currency result.
This is why I would not add assumed property appreciation and assumed currency appreciation together and call the total “expected return.” They are separate hypotheses. An investment that requires both the property and the exchange rate to move favourably is more dependent than one whose property case remains acceptable without a currency gain.
The aim is not to eliminate that uncertainty. It is to see it. Once every material cash flow has a currency, a date and an owner, the investor can tell which mismatches are ordinary operational details and which could require additional capital at the wrong moment.
A dollar sign repeated across a property presentation can create a sense of uniformity. The real investment becomes clearer when we stop assuming that all dollars, riel and home-currency obligations naturally cancel one another. They do not. They are separate cash flows that happen to belong to the same owner.
Sources
- National Bank of Cambodia — Financial Stability Review 2025, published 28 March 2026: confirms the continuing high level of financial dollarisation in Cambodia’s banking system; it is not used to infer the currency of any specific property contract. Accessed 2026-10-06.