How to Account for Foreign Currency Transactions Under Ind AS 21

Foreign currency transactions Ind AS 21 accounting is the process of recording, measuring, and reporting transactions denominated in currencies other than the entity's functional currency — and of translating the financial statements of foreign operations for consolidation into the parent entity's reporting currency. For any Indian company that imports raw materials priced in US dollars, exports goods invoiced in euros, borrows in Japanese yen, maintains a subsidiary in Singapore, or holds a bank account in British pounds, Ind AS 21 (The Effects of Changes in Foreign Exchange Rates) governs every aspect of how those foreign currency amounts enter the financial statements. The standard determines which exchange rate to use at initial recognition, how to remeasure monetary and non-monetary items at each reporting date, where to recognise the resulting exchange differences — profit or loss or other comprehensive income — and how to translate an entire set of foreign operation financials from one currency to another. For Indian businesses with growing international operations, getting Ind AS 21 right is not optional — it directly affects reported revenue, expenses, asset values, equity, and the foreign currency translation reserve. The Classic Partners provides accounting advisory services that include Ind AS 21 implementation, functional currency determination, and foreign operation translation for companies across India.

01 What Is Functional Currency and How Do You Determine It Under Ind AS 21?

Functional currency is the most important concept in Ind AS 21 because every subsequent accounting treatment — initial recognition, remeasurement, and translation — flows from the determination of the entity's functional currency. Ind AS 21 defines functional currency as the currency of the primary economic environment in which the entity operates. It is not a choice — it is a factual determination based on the economic substance of the entity's operations, and once determined, it can only be changed if the underlying economic circumstances change.

Primary Indicators

The standard identifies three primary indicators for determining functional currency. First, the currency that mainly influences sales prices for goods and services — the currency in which sales prices are denominated and settled. Second, the currency of the country whose competitive forces and regulations mainly determine the sales prices. Third, the currency that mainly influences labour, material, and other costs of providing goods or services. For a purely domestic Indian manufacturer that buys raw materials in rupees, pays employees in rupees, and sells products in rupees, the functional currency is clearly the Indian rupee. For an Indian IT services company that invoices clients exclusively in US dollars, pays employees in rupees, but whose pricing is driven by US market rates and competition, the determination requires more careful analysis.

Secondary Indicators

When the primary indicators do not give a clear answer, Ind AS 21 provides secondary indicators: the currency in which funds from financing activities (debt, equity) are generated, and the currency in which receipts from operating activities are usually retained. A subsidiary of a US company operating in India that raises all its debt in dollars, retains earnings in dollars, and remits profits to the US parent in dollars may have the US dollar as its functional currency — even though it pays employees in rupees — if the primary indicators also point toward the dollar.

The functional currency determination must be documented and reviewed periodically. If the economic circumstances change — for example, if an export-oriented company shifts to primarily domestic sales — the functional currency may change. A change in functional currency is applied prospectively under Ind AS 21, not retrospectively. Entities with complex operations — particularly those operating across multiple countries through branches or subsidiaries — benefit from professional audit and assurance services that verify the functional currency determination is supported by the economic evidence.

02 How Are Foreign Currency Transactions Recorded at Initial Recognition?

When an entity enters into a transaction denominated in a foreign currency — purchasing inventory, selling goods, borrowing money, or acquiring an asset — Ind AS 21 requires the transaction to be recorded in the entity's functional currency by applying the spot exchange rate between the functional currency and the foreign currency on the date of the transaction. The spot rate is the exchange rate for immediate delivery — not a forward rate or a contractual rate.

In practice, Ind AS 21 permits the use of an average rate for a period (weekly or monthly average) as an approximation of the spot rate, provided exchange rates do not fluctuate significantly during the period. For example, if an Indian company purchases raw materials from a US supplier on 15 July for USD 100,000 and the spot rate on that date is ₹83.50 per dollar, the purchase is recorded at ₹83,50,000. If the company uses a monthly average rate for July of ₹83.20, the purchase would be recorded at ₹83,20,000. The choice between spot rate and average rate must be applied consistently and disclosed in the accounting policies.

The initial recognition rule applies to all elements of the transaction — the asset or expense, and the corresponding liability or revenue. For a credit purchase in foreign currency, both the inventory (or expense) and the trade payable are recorded at the spot rate (or average rate) on the transaction date. This establishes the baseline amounts in the functional currency against which subsequent exchange differences will be measured. For companies with high volumes of foreign currency transactions — importers, exporters, and companies with overseas operations — maintaining accurate transaction-date rates for every entry is an operational challenge that requires robust accounting systems. GST services must also account for the exchange rate used in recording import transactions, since the GST liability on imports is computed based on the rupee value determined using the customs exchange rate notified by the Central Board of Indirect Taxes and Customs, which may differ from the accounting rate used under Ind AS 21.

03 How Are Monetary and Non-Monetary Items Remeasured at Each Reporting Date?

At each reporting date — monthly close, quarterly close, or annual close — Ind AS 21 requires the entity to distinguish between monetary items and non-monetary items denominated in foreign currency, because the remeasurement rules differ between the two categories.

Monetary Items — Retranslated at the Closing Rate

Monetary items are assets and liabilities that represent a right to receive or an obligation to pay a fixed or determinable number of units of currency. Common examples include foreign currency cash and bank balances, trade receivables from overseas customers, trade payables to overseas suppliers, foreign currency loans (both borrowings and lendings), and foreign currency deposits. At each reporting date, every monetary item denominated in a foreign currency is retranslated using the closing rate — the spot exchange rate at the end of the reporting period. The difference between the carrying amount in functional currency (at the previous rate) and the retranslated amount (at the closing rate) is an exchange difference that is recognised in profit or loss. For example, if an Indian company has a trade receivable of USD 50,000 recorded at ₹83.50 (₹41,75,000) and the closing rate on 31 March is ₹84.20, the receivable is restated to ₹42,10,000, and the exchange gain of ₹35,000 is recognised in profit or loss.

Non-Monetary Items at Historical Cost — Remain at the Transaction Rate

Non-monetary items carried at historical cost — such as inventory purchased in foreign currency, property plant and equipment acquired overseas, and prepaid expenses in foreign currency — are not retranslated at the closing rate. They remain in the financial statements at the exchange rate prevailing on the transaction date (or the rate used at initial recognition). The rationale is that these items do not represent a right to receive or obligation to pay a fixed amount of foreign currency — their value is embedded in the asset itself, not in the currency. An Indian company that imported machinery from Germany for EUR 500,000 when the rate was ₹89.00 carries the machinery at ₹4,45,00,000 regardless of what the EUR/INR rate is at subsequent reporting dates.

Non-Monetary Items at Fair Value — Translated at the Fair Value Date Rate

Non-monetary items that are remeasured at fair value in a foreign currency — for example, an investment property held by a foreign branch and measured at fair value under Ind AS 40 — are translated at the exchange rate on the date when the fair value was determined. The exchange difference on such items is recognised in the same place as the fair value gain or loss — if the fair value change goes to profit or loss, the exchange component also goes to profit or loss; if the fair value change goes to OCI, the exchange component also goes to OCI.

04 How Has Foreign Currency Accounting in India Evolved from AS 11 to Ind AS 21?

The accounting treatment of foreign currency transactions in India has undergone significant transformation across three regulatory phases, reflecting India's journey from a closed economy with a controlled exchange rate to a globalised economy with a market-determined rupee.

Pre-1991 — Controlled Exchange Rates and Limited Foreign Currency Exposure

Before economic liberalisation, the Indian rupee was administered by the Reserve Bank of India (RBI) at controlled rates, and foreign currency transactions were limited by strict exchange control regulations under FERA (Foreign Exchange Regulation Act, 1973). Most Indian companies had minimal foreign currency exposure — imports required licences, exports were channelled through designated agencies, and foreign borrowings were rare for private companies. The accounting treatment was governed by AS 11 (Accounting for the Effects of Changes in Foreign Exchange Rates), issued by the ICAI, which was relatively basic — transactions were recorded at the transaction date rate, and exchange differences were recognised in profit or loss. The limited volume and complexity of foreign currency transactions meant that AS 11 was adequate for the era.

1991–2016 — Liberalisation, FEMA, and the Revised AS 11

Economic liberalisation brought a surge in foreign trade, foreign direct investment, and foreign currency borrowings. FERA was replaced by FEMA (Foreign Exchange Management Act, 1999), and the rupee moved toward a market-determined exchange rate. The volume and complexity of foreign currency transactions increased dramatically. The ICAI revised AS 11 multiple times to address new realities — including the treatment of forward exchange contracts, the capitalisation of exchange differences on long-term foreign currency monetary items (a contentious provision that allowed companies to add exchange losses on foreign currency borrowings to the cost of fixed assets rather than recognising them in profit or loss), and the translation of foreign operations. However, AS 11 remained fundamentally different from IAS 21 in its treatment of exchange differences on long-term borrowings, creating a gap between Indian GAAP and international practice.

2016 to Present — Ind AS 21 and Convergence with IAS 21

The notification of Ind AS 21 through the Companies (Indian Accounting Standards) Rules, 2015 by the Ministry of Corporate Affairs brought India's foreign currency accounting framework into alignment with IAS 21, with one significant carve-out. Paragraph 46A of Ind AS 21 — unique to India and not present in IAS 21 — permits entities to capitalise exchange differences arising on long-term foreign currency monetary items (loans with a term of 12 months or more) to the extent they relate to the acquisition or construction of depreciable capital assets. This carve-out was retained because Indian companies had historically borrowed heavily in foreign currencies for infrastructure and capital projects, and the volatility of the rupee created large exchange differences that, if recognised entirely in profit or loss, would distort operating results. The carve-out allows these exchange differences to be added to the cost of the asset and depreciated over the asset's remaining life. This remains the most significant difference between Ind AS 21 and IAS 21 as issued by the IASB. For companies with significant foreign currency borrowings, corporate finance advisory that understands this carve-out is essential for optimising the accounting treatment and its impact on reported profits.

05 What Are the Steps to Account for Foreign Currency Transactions and Translate Foreign Operations Under Ind AS 21?

Accounting for foreign currency under Ind AS 21 involves a sequential process — from functional currency determination through transaction recording, remeasurement, and translation. The following steps outline the complete workflow.

1. Determine the Functional Currency of Each Entity in the GroupFor each entity — parent, subsidiary, branch, associate, and joint venture — determine the functional currency using the primary and secondary indicators prescribed by Ind AS 21. Document the analysis, including the key economic factors considered and the conclusion reached. If the functional currency is the same as the presentation currency (typically INR for Indian consolidated financial statements), no translation is required for that entity — only transaction-level exchange differences arise. If the functional currency differs from the presentation currency, the entity's financial statements must be translated under the translation rules.
2. Record Each Foreign Currency Transaction at the Spot Rate on the Transaction DateWhen a foreign currency transaction occurs — a sale, purchase, borrowing, lending, or asset acquisition — record it in the functional currency by applying the spot exchange rate on the transaction date. The entity may use an average rate for a period as a practical expedient, provided rates do not fluctuate significantly. Both the debit and credit sides of the entry use the same rate. For high-volume importers and exporters, establish a systematic process for capturing transaction-date rates — either from the RBI reference rate, the bank's dealing rate, or a reliable market data source.
3. Classify Every Foreign Currency Balance as Monetary or Non-MonetaryAt each reporting date, classify every foreign currency item on the balance sheet as either monetary or non-monetary. Monetary items include cash, receivables, payables, loans, and deposits. Non-monetary items include inventory, PPE, intangible assets, equity investments, and prepayments. This classification drives the remeasurement treatment: monetary items are retranslated at the closing rate, non-monetary items at historical cost remain at the transaction rate, and non-monetary items at fair value are retranslated at the fair value date rate. Prepare a schedule of all foreign currency balances with their classification, original rate, and closing rate.
4. Compute and Recognise Exchange Differences at the Reporting DateFor each monetary item, compute the exchange difference between the carrying amount in functional currency (at the previous rate) and the retranslated amount (at the closing rate). Recognise these exchange differences in profit or loss. For monetary items that form part of the entity's net investment in a foreign operation, recognise the exchange differences in OCI. For settled transactions where the settlement rate differs from the initial recognition rate, recognise the exchange difference in profit or loss on the settlement date. The exchange differences on foreign currency transactions directly affect the entity's reported profit and its income tax computation — tax compliance services must account for the taxability or deductibility of exchange gains and losses under the Income Tax Act, 1961.
5. Translate the Financial Statements of Each Foreign OperationFor foreign operations whose functional currency differs from the presentation currency, translate the financial statements as follows: assets and liabilities — at the closing rate on the reporting date; income and expenses — at the exchange rates on the dates of the transactions (or an average rate as a practical expedient); and equity items — at the historical rates when equity was contributed. The difference between translating assets and liabilities at the closing rate and translating income and expenses at transaction or average rates creates a translation difference, which is recognised in OCI and accumulated in the foreign currency translation reserve in equity. Companies with subsidiaries across multiple countries benefit from transfer pricing support that coordinates intercompany pricing with the exchange rates used in translation.
6. Disclose Exchange Differences, Functional Currency, and Translation PoliciesInd AS 21 requires disclosure of the amount of exchange differences recognised in profit or loss (excluding differences on financial instruments measured at fair value through profit or loss under Ind AS 109), net exchange differences recognised in OCI and accumulated in the foreign currency translation reserve (with a reconciliation of opening and closing balances), the functional currency of the entity (and the reason for using a different presentation currency, if applicable), and any change in functional currency during the period with the reason for the change. Companies registering new entities for international operations should establish the functional currency determination and foreign currency accounting policies from inception through professional business registration and structuring support.

06 Why Does Ind AS 21 Matter for Indian Companies with International Operations?

Ind AS 21 matters because foreign currency accounting directly affects every line of the financial statements for companies with international exposure — and the impact is growing as Indian businesses expand globally. Revenue reported in INR fluctuates with exchange rates even when the underlying foreign currency sales are stable. Import costs swing with the rupee's movement against the dollar, euro, and yen. Foreign currency borrowings create exchange gains or losses that can exceed the underlying interest cost. And the foreign currency translation reserve in equity — the accumulated result of translating foreign subsidiaries — can represent a substantial hidden gain or loss that crystallises when the foreign operation is disposed of.

Consider an Indian IT company with a US subsidiary. The subsidiary earns USD 10 million in revenue and incurs USD 7 million in costs, generating USD 3 million in profit. If the average INR/USD rate during the year is ₹84.00, the subsidiary's profit translates to approximately ₹25.2 crore. But if the rupee depreciates from ₹82.00 at the start of the year to ₹86.00 at the end, the translation of the subsidiary's balance sheet at the closing rate versus the income statement at the average rate generates a positive translation difference in OCI — potentially several crores — that inflates the parent's equity without affecting reported profit. Conversely, if the rupee appreciates, the translation reserve turns negative, eroding equity.

Investors, lenders, and analysts who do not understand this mechanism misread the company's financial position.

For companies with foreign currency borrowings, the paragraph 46A carve-out in Ind AS 21 creates a direct P&L impact decision. A company with a USD 50 million ECB (External Commercial Borrowing) for a power plant can either capitalise exchange losses on this borrowing to the cost of the plant (if it meets the paragraph 46A criteria) or recognise them in profit or loss. If the rupee depreciates by ₹3 per dollar during the year, the exchange loss is approximately ₹15 crore. Capitalising this amount increases the plant's cost and future depreciation but protects the current year's profit. Recognising it in profit or loss reduces reported earnings by ₹15 crore. The choice has significant implications for financial ratios, debt covenants, and tax computations — making professional accounting advisory essential for companies with material foreign currency borrowings.

07 Frequently Asked Questions About Foreign Currency Transactions Under Ind AS 21