7 Key Factors That Affect Foreign Exchange Rates
As an exporter or a freelancer, you might have become curious about currency rate fluctuations at some point. After all, they directly impact your income. To answer in short, there are seven factors that affect exchange rates.
We have dived deeper into each of them in this blog. We have also covered various ways you can prepare your business for forex risk and protect your income.
TL;DR - Summary
- What strengthens a currency: - Higher interest rates and lower inflation attract foreign investors, making the currency stronger.
- Other positive indicators: - A positive trade balance, stable government, and low government debt also encourage foreign investment.
- Who is most impacted: - Exporters, freelancers, and businesses with international clients are most affected by currency rate fluctuations.
- What you can control: - While you can't control exchange rates, you can choose platforms that show real-time rates and charge transparent fees.
What is an exchange rate and why does it continuously fluctuate
🔒 Fixed Rate
Set and controlled by the central bank
📈 Floating Rate
Moves freely with market supply & demand
The exchange rate is the price at which you can buy a currency by exchanging another currency. That means if 1 USD = 90 INR, you must have 90 INR to buy 1 dollar.
There are two ways these exchange rates are decided:
Fixed rate: The government or the central bank locks or pegs the currency's value to another major currency. For example, the Saudi Central Bank (SAMA) has used a fixed exchange rate of 1 USD = 3.75 SAR since 1986.
Floating rate: The value of the currency moves freely as buyers and sellers participate in the market to buy or sell currency. Countries like India, the US, and Japan depend on this system to determine the exchange rate.
Most currencies you deal with in your daily business, the US Dollar (USD), Euro (EUR), British Pound (GBP), and Indian Rupee (INR) follow the floating system, as their value rises and falls based on the demand and supply.
Rate change impact — live example
How a ₹1–2 rate shift affects a $10,000 invoice
Yesterday you'd receive
₹9,00,000
Today you receive
₹9,00,000
What are the seven key factors that affect exchange rates
Currency rates keep moving. But what’s moving them up or down? There are multiple economic, political, and market forces at play, and here are the seven most important ones that you need to know:
Interest rates and central bank policies
Interest rates are the cost of borrowing money. Central banks like the Reserve Bank of India (RBI) or the US Federal Reserve use it to control inflation and stimulate economic growth.
How it works:
- Higher Rates = Stronger Currency: When the central bank raises its interest rates, it offers lenders and investors a higher return on their money compared to other nations.
- The inflow of capital: Foreign investors put their money into a country's bonds or banks, and to do that they must buy the local currency. As the demand for currency increases, the value also goes up.
- Lower Rates = Weaker Currency: Conversely, if the central bank cuts rates, the currency usually weakens as investors move their money elsewhere in search of better returns.
In India, the RBI actively manages these rates to balance inflation and growth. The RBI also occasionally steps into the market to buy or sell foreign currency to manage volatility
It's About Expectations: Currency markets don't always wait for the central bank to act. If investors expect the RBI to raise rates next month based on a speech, the Rupee may gain value immediately, anticipating a future change.
Inflation rates and purchasing power
Inflation is the rate at which the prices of goods and services rise in an economy. Money loses its purchasing power, which simply means that the same 1,000 rupees buys you fewer goods today than it did a year ago.
For a freelancer or exporter, a weaker currency means you get more rupees for every dollar you earn, but your local expenses also climb simultaneously.
Global investors prefer to park their money in countries where the economy is stable and protected. If they see inflation rising much faster in a country, they lose confidence and start selling that currency to move their wealth into more stable markets.
Common Mistake
Many assume that high inflation always crashes a currency immediately. In reality, markets react to expected future inflation, not just current rates. If investors believe a central bank's upcoming policies will successfully stabilize prices, the currency may remain resilient despite a temporary spike in inflation.
Trade balances and current account deficits
Trade balance is a simple calculation: the total value of its exports minus the value of its imports. It is a major indicator of how much a nation’s goods and services are in demand on the global stage.
- Trade Surplus (Selling More than Buying): When a country’s trade balance is in surplus, foreign buyers must first purchase that nation’s currency to buy its goods or services. This constant, high demand for the currency leads to its appreciation.
- Trade Deficit (Buying More than Selling): In this case, the country must sell its own currency to buy foreign currency and pay its international suppliers. This creates an excess supply of the local currency in the market, which often leads to its depreciation.
Global investors use the trade balance to assess an economy’s competitiveness. A persistent surplus means a productive and healthy economy to invest capital in the country. Conversely, a long-term deficit makes investors nervous about the currency’s future stability and leads them to pull their funds out.
Example: Export-heavy economies like Germany often see stronger currencies because there is a constant, worldwide demand for euros to pay for German-made products and machinery.
Political stability and government policies
Foreign businesses look at a country with a stable government and a reliable legal system as a safe place to invest capital. Such countries, therefore, attract more Foreign Direct Investment (FDI) which strengthens the local currency.
But when there is political instability because of a major election or sudden policy shifts, investors often pull their money out, also known as capital flight, causing the currency to weaken almost instantly.
Example: In 2018, Turkey’s lira lost 35% of its value against the US dollar, mostly because of President Erdoğan's pressure on the central bank to keep interest rates low. Later in 2021, he fired the central bank governor overnight, causing the lira to fall 44% further that year and inflation to hit 85.5%.
Public debt and national fiscal health
Public debt is the total amount of money a government owes to its creditors. Governments borrow money to fund large projects, but extremely high debt levels make global investors rethink a country’s long-term financial health.
The logic is that the government might print more money to pay off the debt, which triggers inflation. To hedge against this risk, investors demand much higher interest rates or pull their capital out of the country. This outflow of foreign money decreases demand for the local currency, causing it to weaken.
Example: In 2009, Greece’s national debt ballooned to 262 billion euros with a trade deficit of 12.7% of the GDP. Investors lost their confidence in Greece, and the euro fell 25% against the dollar between 2010 and mid-2015.
Economic growth and performance indicators
Global investors use indicators to decide where to put their money. Here are the three primary indicators they watch for:
- GDP Growth: This is the primary indicator of a nation’s economic health, as it signals whether the economy is expanding or shrinking.
- Employment Rates: High employment levels show a strong labor market and healthy consumer spending, both of which are signs of a stable and productive economy.
- Manufacturing Output: This tracks the total production of factories and industries. It is a key measure of business activity and industrial strength.
When these indicators are positive, it triggers a surge in capital inflows. As international demand for the local currency increases, its value also appreciates.
Example: When India's GDP growth outpaces expectations, the rupee strengthens as global investors rush to participate in the country's economic expansion.
Market speculation and investor sentiment
Factors like trade balance, inflation, and interest rates are the long-term anchors for a currency. Market sentiment and speculation mostly drive short-term movements.
How it works in the real world:
- Pricing In: If traders believe a central bank will raise interest rates next month, they buy that currency immediately. When the actual announcement is made, the rate might not move at all because the change was already priced in by the market.
- Risk Appetite: During times of global uncertainty, investors sell off currencies from emerging markets and rush to buy safe-haven currencies to place safe bets.
Example: For years, investors borrowed cheaply in Japanese yen to take advantage of the near-zero interest rates. But in 2024, when the Bank of Japan increased the interest rates, investors went into a frenzy to pay off their yen loans. To do that, they started selling their high-value foreign investments, causing the US and Asian stock markets to fall sharply. Sentiment influenced this sudden sell-off and not an economic indicator.
What causes currency appreciation or depreciation
Currency appreciation occurs when global demand for a currency exceeds its supply, making it more valuable. Currency depreciation happens when the supply of a currency in the market is more than the demand, causing its value to drop.
The following table compares the primary drivers behind these movements:
Which businesses are most affected by currency rate changes
When the currency fluctuates, the entire global economy takes a hit. But the following are the businesses most affected by the movements:
Exporters of goods and services: Exporters earn in foreign currency, but their operational costs are in INR. When the rupee gets stronger, their costs increase and foreign income shrinks.
Freelancers working with international clients: Freelancers earn in global currencies like USD or EUR, but spend in their local currency. Therefore, their real paycheck fluctuates every single day.
Amazon sellers on global marketplaces: Amazon sellers receive payouts in foreign currency. During unfavorable exchange rates, their product margins also fall.
Import-dependent businesses: Importers buy foreign currency to pay their international suppliers. A weakening rupee immediately makes every raw material more expensive to source.
Pro Tip
Don't ignore "small" movements — a 1-2% shift in the USD/INR rate might seem minor, but for an exporter with a $10,000 invoice, that is an ₹8,000–₹16,000 difference — often enough to cover a month's worth of office rent or your entire suite of software subscriptions.
How can businesses and freelancers protect against forex risk
You can't control exchange rates, but you can minimize their impact on your business. By adopting the following proactive habits:
Monitor exchange rates and time your conversions
Use FX tools or apps to track live market movements and set automated alerts to notify you when the currency hits your target value. If you have enough cash flow, convert your funds when rates are favorable. Keep checking economic calendars to avoid converting during highly volatile periods, such as major central bank announcements.
Choose transparent low-fee payment providers
Traditional banks charge hidden foreign forex markups on the prevailing exchange rate. Choose fintech platforms that offer flat fees and real-time visibility of the exchange rate. Platforms like Skydo show you the exact conversion rate before you transact, so you always know the INR value of your incoming money.
Invoice clients in your preferred currency
Invoice in a stable, major currency like USD or EUR. This acts as an insurance against local currency swings. When setting up contracts, negotiate terms that give you flexibility on when to convert those funds. You can even include currency adjustment clauses in your contracts to share the risk with the client if the rate moves beyond a specific range.
How Skydo helps you navigate exchange rate volatility
By now, you know that there are multiple market forces that decide the currency exchange rate.
It’s hard to predict them, and you certainly can't stop them from fluctuating.
But what you can control is how you receive international payments and how much of your hard-earned money reaches your account.
And Skydo can help you with that.
Skydo is built for Indian freelancers, exporters, and business owners who get paid in foreign currencies. It ensures that you always know how many fees you are paying on foreign income without compromising on speed.
Here's how:
Real-time FX calculator: Skydo shows you precisely what conversion rate you're getting before you confirm anything. There are no hidden markups in the fine print.
Flat, transparent fees: Skydo charges flat, transparent fees so you always know what you're paying, regardless of how the market moves that day.
Virtual accounts in major currencies: With Skydo's virtual accounts in USD, EUR, GBP, and SGD, your international clients can pay you directly using local bank account details. Your money doesn’t have to move through multiple banks, each taking a cut as intermediary fees.
Fast settlements: Predictable settlement timelines mean you know when your money will arrive. Skydo settles international payments in 1 business day, which helps you plan your income around currency rate movements.
How often do exchange rates change?
Exchange rates change constantly during market trading hours. The forex market operates 24 hours a day, five days a week, across different time zones. So the rate you see at 9 AM may be different by noon, and different again by evening.
Can exchange rate movements be predicted?
What is the difference between fixed and floating exchange rates?
How do exchange rate fluctuations affect my international payments?
