Spot rate vs forward rate: what is the difference in FX?
When should a business use a spot rate, and when can a forward rate provide greater certainty? The answer depends on the timing and predictability of its currency needs.
Ask SwissFx
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Spot FX is generally used for immediate or near-term currency needs. A forward contract allows a business to agree today on a rate for an exchange that will take place later.
The choice is not binary. Many companies use both, depending on how accurately they can forecast their payments and revenues and how much exchange-rate uncertainty they are prepared to accept.
Business situation | Spot FX may be appropriate when… | Forward FX may be appropriate when… |
|---|---|---|
Supplier invoice | The invoice is due shortly or the amount may change | The amount and payment date are known in advance |
Overseas revenue | The funds have already been received | A fixed amount is expected at a future date |
Offshore teams or recurring payroll | The amount changes each month | Part of the future cost is predictable |
Machinery or equipment order | Payment is immediate | A deposit or balance is due on a known future date |
These examples are indicative.
How do spot and forward rates work?
Spot FX: exchanging currency at the current rate
The spot rate is the current rate for exchanging one currency for another. It is confirmed when the transaction is executed. While spot transactions typically settle within two business days, SwissFx usually processes them within hours and almost always on the same day..
Businesses commonly use spot FX to pay an invoice now, convert incoming funds or meet another immediate currency need. It does not involve a future contractual commitment.
Forward FX: agreeing a rate for later
A forward rate is agreed today for an exchange on a future date or within an agreed period. It is calculated from the spot rate and based on factors including the contract term and the interest rates of the two currencies.
A forward contract is a binding agreement. It establishes the future value of a known payment or revenue in the company’s home currency, providing greater budget certainty. Its purpose is not to guarantee a saving or secure the best rate.
Important: forward contracts are subject to a credit assessment.
Two common forward structures
A deliverable forward involves exchanging the agreed currencies at settlement. A non-deliverable forward (NDF) settles the difference between the contracted rate and a reference rate in an agreed currency. NDFs are often used where delivery of the underlying currency is restricted or less accessible.
What does this look like in practice?
Imagine a Swiss machinery company that must pay a US supplier USD 500,000 in four months time. If they wait and use spot FX, the cost in Swiss francs will remain uncertain until the invoice is due. A stronger US dollar would increase the cost, while a weaker dollar would reduce it.
With a forward contract, the company agrees today on the rate that will apply in four months. It gives up the possibility of benefiting from a more favourable spot rate on the amount covered, but gains certainty over the future CHF cost.
How should a business balance spot and forward FX?
The key question is how much of your future currency exposure you want to cover and how much flexibility you need.
Spot FX can suit immediate needs, uncertain amounts or changing payment dates. Forward contracts can support payments or revenues when the amount and timing are reasonably clear. Many businesses use a mix between spot and forward FX that reflects their forecasting visibility, business model and risk profile.
Questions to ask yourself
☐ When do your foreign-currency payments or revenues become sufficiently certain?
☐ How could exchange-rate movements affect your costs, revenues or cash flow?
☐ Does your current approach provide the right balance between certainty and flexibility?
Is your current FX strategy supporting your business?
SwissFx offers a complimentary FX audit to review your currency exposure, current processes and approach to future payments and revenues. Our team can identify where greater visibility or flexibility may support your planning.