Carry Trade Calculator
Calculate potential profit from currency carry trade strategies. Compare interest rate differentials between two currencies and estimate returns with exchange rate risk.
About This Calculator
The Carry Trade Calculator helps forex traders and investors estimate the potential profit from executing a currency carry trade strategy. This popular trading approach involves borrowing a currency with a low interest rate (the funding currency) and investing the proceeds in a currency with a higher interest rate (the target currency), earning the difference between the two rates. Our calculator accounts for both the interest rate differential and exchange rate movements to give you a comprehensive profit projection.
The calculation uses the standard carry trade formula: Investment Return = (1 + (Lending Rate − Borrowing Rate) × (1 + Spot Rate Differential)) ^ (Days / 360) − 1. The spot rate differential captures how exchange rate changes between trade initiation and settlement affect overall profitability. The result is then multiplied by the amount invested to determine the total carry trade profit or loss. A 360-day year convention is used as is standard in money market and forex calculations.
Regional Notes
India: Indian investors engaging in forex carry trades must comply with RBI's Liberalised Remittance Scheme (LRS) limits of up to $250,000 per financial year per individual. Carry trades involving INR and foreign currencies are subject to FEMA regulations. Popular pairs include USD/INR where INR typically offers a higher interest rate than USD.
United States: US traders commonly execute carry trades through forex brokers using pairs like USD/JPY, AUD/USD, and NZD/JPY. Interest is paid or received daily through swap points or rollover rates. Profits from forex trading are typically taxed as short-term capital gains at ordinary income rates.
United Kingdom: UK-based traders often use GBP as either the funding or target currency depending on Bank of England interest rate policy. Carry trade profits are subject to Capital Gains Tax (CGT) for individuals, with the current annual exempt amount of £3,000 (2026-27). Spread betting and CFDs offer tax-efficient alternatives for UK forex traders.
Frequently Asked Questions
What is a carry trade in forex trading?
A carry trade is a forex trading strategy where an investor borrows a currency with a low interest rate (funding currency) and invests in a currency with a higher interest rate (target currency), profiting from the interest rate differential between the two currencies.
How do you calculate carry trade profit?
Carry trade profit is calculated as: Amount Invested × Investment Return. The investment return is computed using the formula (1 + (Lending Rate − Borrowing Rate) × (1 + Spot Rate Differential)) ^ (Days / 360) − 1, where the spot rate differential accounts for exchange rate changes between trade initiation and settlement.
What is the spot rate differential in carry trade?
The spot rate differential represents the percentage change in the exchange rate between the time a carry trade is initiated and when it settles. It is calculated as (Settle Exchange Rate − Initial Exchange Rate) / Initial Exchange Rate. A positive differential boosts profits, while a negative one reduces them.
What currencies are commonly used for carry trades?
Popular carry trade currency pairs include USD/JPY (borrowing low-yield JPY to buy USD), AUD/JPY, NZD/JPY, and emerging market currencies like INR or ZAR paired with USD or JPY. The key is borrowing a low-interest rate currency and lending a higher-yielding one.
What are the risks of carry trade strategies?
The primary risk is exchange rate fluctuation — if the high-yielding currency depreciates significantly against the funding currency, it can wipe out interest rate profits and cause losses. Other risks include leverage amplification, liquidity risk, and sudden changes in central bank interest rate policies.
Is carry trade profitable in India?
Indian investors can potentially profit from carry trades by borrowing in low-interest currencies like JPY or USD and investing in higher-yielding INR instruments. However, RBI regulations on forex trading and capital account transactions may apply. Always consult a registered forex advisor before executing cross-border carry trades.
How does the 360-day convention affect carry trade calculations?
The carry trade formula uses a 360-day year convention (days/360) as is standard in money market and forex calculations. This means partial-year compounding is calculated based on a 360-day year rather than 365 days, which slightly affects the investment return for shorter-duration trades.