What it means
A group with operations in several countries keeps local books in local currency, because that is how each business is paid and pays its bills. To publish one set of accounts, all of those local numbers must be converted into a single currency chosen by the parent, and that chosen currency is the reporting currency, also called the presentation currency.
It is worth separating two ideas that are often confused. Functional currency is the currency of the economic environment in which an entity mainly operates and is determined by the facts, while reporting currency is a presentation choice made by the group.
A subsidiary can have a euro functional currency inside a group that reports in dollars. The translation follows a standard pattern under most frameworks.
Assets and liabilities are converted at the closing rate on the balance sheet date, income and expenses at the average rate for the period, and the difference that arises goes to a reserve within equity rather than through profit. That reserve, often called the cumulative translation adjustment or foreign currency translation reserve, is why equity can move even when the business has done nothing differently.
It is an accounting consequence of exchange rate movements, not a trading loss, and it usually stays in equity until the foreign operation is sold. For anyone reading a multinational's results, the practical point is that revenue growth quoted in the reporting currency blends real trading performance with currency effects.
This is why companies often quote growth on a constant currency basis alongside the reported figure, so readers can see how much came from each.
In practice
Real-world examples
Example 1
A drinks group reporting in dollars sees its Japanese subsidiary grow sales 8% in yen, but a weaker yen means the translated figure is flat. The chief executive presents both numbers so investors can separate trading performance from currency movement.
Example 2
A private group with subsidiaries in three countries changes its reporting currency from sterling to dollars after listing on a US exchange. It restates prior year comparatives in dollars so the trend remains meaningful to new investors.
Example 3
A holding company sells its Brazilian operation and recycles the accumulated translation reserve into the profit and loss account on disposal. The reported gain differs from the simple sale price less book value because of that reserve.
Think of it
Think of a global sports tournament where athletes from dozens of nations compete. While each athlete uses their own local measurement system at home, the official scoreboard translates all results into metres and seconds so everyone understands who won.
Formula
Calculation
Translation adjustment = Closing net assets at closing rate - (Opening net assets at opening rate + Profit at average rate)
A US group reports in dollars and owns a subsidiary whose functional currency is a local one quoted in units per dollar. The subsidiary starts the year with net assets of 20,000,000 units when the rate is 2.00 units per dollar, giving 20,000,000 / 2.00 = $10,000,000. It earns a profit of 4,000,000 units during the year at an average rate of 2.50 units per dollar, which is 4,000,000 / 2.50 = $1,600,000. Closing net assets are 20,000,000 + 4,000,000 = 24,000,000 units, translated at the closing rate of 3.00 units per dollar, giving 24,000,000 / 3.00 = $8,000,000. The translation adjustment is $8,000,000 - ($10,000,000 + $1,600,000) = -$3,600,000, recorded in equity even though the subsidiary was profitable in its own currency.Case study
Seen in the real world
Calderport Foods is a fictional, illustrative food ingredients group that reports in dollars and generates about 60% of its trading profit from a European subsidiary. In one financial year the European business grew volumes, held its margins and delivered its best local result in a decade.
The group's reported results told a duller story. A 12% strengthening of the dollar against the euro meant the translated profit barely moved, and the translation reserve inside equity fell by several million dollars. Investors in this illustrative example initially read the flat result as a trading problem.
Calderport responded by adding a constant currency column to its results presentation and a short note explaining that the movement in the translation reserve was an accounting effect rather than a cash loss. Analyst questions about the discrepancy dropped away in the following reporting cycle.
Watch out
Common mistakes
- Using reporting currency and functional currency as if they meant the same thing, when one is a presentation choice and the other is a matter of economic fact.
- Reading a fall in the translation reserve as a trading loss, when it reflects exchange rate movement on net assets already owned.
- Translating every line at the closing rate, when income and expenses should generally be translated at average rates for the period.
Questions
People also ask
Can a company change its reporting currency?
Yes, though it is uncommon and usually follows a major change such as a listing abroad or a shift in where the group earns most of its money, and comparatives are restated.
Why do companies quote constant currency figures?
Because they strip out the effect of exchange rate movements, showing how the underlying business performed against the prior period.
Does translation affect cash?
No, translation is a presentation exercise; actual cash only changes when money is genuinely converted from one currency into another.