Central banks and interest rates: why the Fed, ECB, BoE and BoJ move currencies

Central banks influence currencies mainly through interest rates. When a central bank raises rates, or the market comes to expect that it will, holding that currency tends to become more attractive relative to others, which can support its exchange rate. What moves the market is usually the change in expectations, not the decision itself: a hike that everyone predicted can leave a currency flat, while a hint about next year's policy can move it sharply.

What central banks are trying to do

Most major central banks have a legal mandate centred on price stability, and most interpret that as an inflation target of 2% over the medium term. Some have additional goals, such as employment. To meet those goals, they set a short-term policy interest rate, which influences the rates at which banks lend to each other, and from there mortgage rates, business borrowing costs, savings rates and, ultimately, spending and inflation.

The basic logic:

• If inflation is running above target and the economy is strong, a central bank may raise rates to cool demand.
• If inflation is below target or the economy is weak, it may cut rates to support activity.
• In between, it may hold rates and wait for more data.

Central banks also have other tools: buying or selling government bonds (often called quantitative easing and tightening), lending programmes for banks, and, rarely, direct intervention in the currency market. For most day-to-day currency moves, though, the policy rate and expectations about its path dominate.

The major central banks at a glance

Below is a summary of the four central banks that matter most for major currency pairs. Meeting schedules and procedures are published by each bank on its website, normally a year or more in advance; always check the official calendar for dates.

US Federal Reserve (Fed) — USD

• Mandate: set by Congress as maximum employment and stable prices, often called the dual mandate.
• Inflation goal: 2%, measured by the annual change in the personal consumption expenditures (PCE) price index.
• Decision-maker: the Federal Open Market Committee (FOMC), which holds eight regularly scheduled meetings a year.
• Policy rate: a target range for the federal funds rate, the overnight rate at which banks lend reserves to one another.
• Key communications: the post-meeting statement and press conference by the Chair; the Summary of Economic Projections, published four times a year, which includes the "dot plot" of individual officials' rate projections; and minutes released three weeks after each meeting.

Because the US dollar is on one side of most forex trades, the Fed matters for almost every pair. The global role of the dollar is covered in how the forex market works.

European Central Bank (ECB) — EUR

• Mandate: the primary objective, under the EU treaties, is price stability.
• Inflation goal: 2% over the medium term, symmetric (deviations above and below are treated as equally undesirable), measured by the Harmonised Index of Consumer Prices (HICP). The ECB reconfirmed this target in its 2025 strategy assessment.
• Decision-maker: the Governing Council, which holds monetary policy meetings roughly every six weeks.
• Policy rates: three key rates; the deposit facility rate is the one the ECB uses to steer its policy stance.
• Key communications: the monetary policy statement and press conference by the President, staff macroeconomic projections (published quarterly), and accounts of meetings.

Bank of England (BoE) — GBP

• Mandate: maintain price stability and, subject to that, support the government's economic objectives.
• Inflation goal: 2% on the consumer prices index (CPI), set by the government. If inflation moves more than one percentage point away from target, the Governor writes an open letter to the Chancellor explaining why and what the Bank intends to do.
• Decision-maker: the nine-member Monetary Policy Committee (MPC), which meets eight times a year. Individual votes are published, so a split vote can move sterling even when the rate is unchanged.
• Policy rate: Bank Rate.
• Key communications: the decision with minutes, and the quarterly Monetary Policy Report with forecasts.

Bank of Japan (BoJ) — JPY

• Mandate: price stability, contributing to the sound development of the economy.
• Inflation goal: a price stability target of 2% on consumer prices, adopted in 2013.
• Decision-maker: the Policy Board, which holds eight Monetary Policy Meetings a year.
• Recent history worth knowing: the BoJ ran negative short-term rates and a policy of controlling government bond yields for years. It ended both in March 2024, its first rate rise in seventeen years, and has since been gradually normalising policy.
• Key communications: the policy statement, the Governor's press conference, and the Outlook for Economic Activity and Prices report, published four times a year.

Others worth knowing

The Swiss National Bank (CHF), Bank of Canada (CAD), Reserve Bank of Australia (AUD) and Reserve Bank of New Zealand (NZD) also move their currencies on decision days. Each has its own schedule; the Swiss National Bank, for instance, holds its scheduled monetary policy assessments quarterly. Check each bank's own calendar, or a reliable economic calendar.

This guide deliberately does not quote current rate levels: they change, and the point here is the mechanism. Our weekly recaps, such as the forex week in review for 30 October 2026, cover recent decisions as they happen.

Why interest rates move exchange rates

Rate differentials

Money moves, at the margin, towards higher returns adjusted for risk. If one currency pays meaningfully more interest than another, investors have an incentive to hold the higher-yielding one, all else equal. What matters for a currency pair is the difference between the two rates, and above all how that difference is expected to change.

For EUR/USD, the relevant comparison is ECB policy versus Fed policy. If markets come to expect that the Fed will cut rates faster than the ECB, the expected differential moves in the euro's favour, which tends to support EUR/USD. If expectations swing the other way, the pressure reverses. It is a relative game: a currency can fall even while its central bank is raising rates, if another bank is expected to raise faster.

Expectations, not decisions

Financial markets price expected future rates continuously, through instruments such as interest-rate futures, swaps and government bond yields. By the time a central bank meets, the market usually has a fairly firm view of the outcome. If the bank does what was expected, the decision itself carries little new information.

What moves currencies on decision day tends to be:

• A surprise in the decision, such as a cut when no change was expected.
• A change in guidance about future decisions.
• New projections for inflation, growth or rates that differ from what the market assumed.
• The vote split where it is published, which signals how close the committee is to changing course.
• The tone of the press conference, which can amplify or reverse the initial reaction.

Forward guidance

Forward guidance is a central bank's communication about the likely future path of policy. It can be explicit ("rates are expected to remain at current levels for an extended period") or conditional ("further tightening may be needed if inflation remains persistent"). Since about the 2010s, major central banks have relied heavily on it, because shifting expectations about the next year of rates can be more powerful than a single change today.

Guidance is closely watched for subtle wording changes. A single word removed from a statement can move a currency, because traders read it as a signal. This is also why speeches by central bank officials between meetings can matter: they shape expectations for the next decision.

Data dependence

Central banks often describe themselves as "data-dependent", meaning their next decision depends on incoming economic figures. In practice, that makes inflation, employment and activity data channels through which expectations about rates change between meetings. The mechanics are covered in how economic data moves forex.

Worked example: a decision that was "expected"

Illustrative scenario, not a description of any real meeting.

Before a Bank of England meeting, interest-rate markets imply about a 90% chance of a 0.25 percentage point cut. GBP/USD trades at 1.2700.

Outcome A. The MPC cuts by 0.25 points with a 7–2 vote, and the statement says further cuts will be gradual. This is close to what was priced. GBP/USD might move only a few dozen pips, mostly on details.

Outcome B. The MPC cuts by 0.25 points, but the vote is 5–4 and the statement drops a reference to further easing. The decision is the same, but the market now expects fewer cuts in the coming year. Sterling could rise despite the rate cut.

Outcome C. The MPC holds rates, surprising the market. Expectations shift sharply and sterling could jump in seconds, with spreads widening and prices gapping.

Now the risk side. Suppose you hold one standard lot of GBP/USD going into the announcement, with a stop 30 pips away. A pip on GBP/USD is worth $10 per standard lot (see what is a pip), so you had budgeted to lose $300 if wrong. In a fast move, the price might gap from 1.2700 to 1.2650 with few trades in between, and your stop could fill 20 pips worse than intended: a $500 loss. This is ordinary slippage, not a broker error. With high leverage, a gap like that can also push an account towards a margin call or stop-out.

Interest rates and your swap charges

Interest-rate differentials also show up directly in your account through overnight financing. When you hold a leveraged currency position past the daily rollover, you are effectively borrowing one currency and holding the other, and your broker credits or debits the difference, minus its own markup. If you are long the higher-yielding currency, the swap may be positive before markup; if you are short it, you pay.

Example (illustrative): if the interest-rate gap between two currencies is 3 percentage points a year, a one-lot position of 100,000 units carries a theoretical financing difference of about 3,000 units of currency a year, or roughly 8 a day, before the broker's markup. Markups can easily turn a small positive swap into a cost. The details, including the triple charge usually applied on Wednesdays, are in swap and overnight financing.

Buying high-yielding currencies against low-yielding ones to earn this difference is known as the carry trade. It can work for long periods and then unwind violently when risk sentiment turns, because many traders exit at once. Earning a small positive swap does not compensate for a large adverse move in price.

Other ways central banks affect currencies

• Balance sheet policy. Large-scale bond buying tends to lower longer-term yields and can weigh on a currency; reducing the balance sheet tends to do the opposite. The effects are slower and harder to isolate than rate changes.
• Intervention. Occasionally a government or central bank buys or sells its own currency directly to slow a move. Japan's authorities have done this in the past to support the yen. Intervention can cause moves of several hundred pips in minutes and is usually unannounced.
• Financial stability actions. In a crisis, emergency measures can override everything else.
• Speeches and testimony. Officials speak often between meetings. A comment by a central bank head can shift expectations as much as a data release.

Common mistakes

• Reacting to the decision without checking expectations. A "rate hike" headline means little if the market already priced it.
• Looking at one central bank in isolation. Every pair has two sides. A hawkish Fed and an even more hawkish ECB can still mean a weaker dollar against the euro.
• Assuming higher rates always strengthen a currency. If rates rise because inflation is out of control or growth is collapsing, confidence can fall instead.
• Holding large positions through decisions. Spreads widen, liquidity thins and prices gap. Decide your exposure before the event; see position sizing.
• Ignoring swap costs on positions held for weeks.
• Confusing commentary with forecasts. Analysts' previews describe possibilities; nobody knows the reaction in advance, including central banks themselves.

How this fits with charts and indicators

Interest-rate expectations are often the reason behind the trends that technical tools describe. A long trend in a major pair frequently lines up with a sustained shift in rate differentials, which is why trend following and moving averages can work for a while and then fail abruptly when expectations turn. Levels on a chart, as discussed in support and resistance, can be swept aside by a single central bank surprise. Knowing the policy calendar does not tell you which way price will go, but it tells you when your chart-based assumptions are most likely to be tested.

Most retail CFD accounts lose money, and leverage magnifies losses on exactly the kind of fast moves that central bank days produce. Our guide to leverage and margin explains why.

Frequently asked questions

Why do higher interest rates usually strengthen a currency?

Higher rates, or expected higher rates, make holding assets in that currency more rewarding relative to others, which can attract capital. But it is the expected difference between two economies' rates that matters, and context can override it, for example if rates are rising because inflation is out of control.

What is forward guidance?

It is a central bank's communication about the likely future path of interest rates. Because markets price expectations, guidance can move currencies as much as, or more than, the actual rate decision.

How often do the Fed, ECB, BoE and BoJ meet?

The Fed's FOMC, the Bank of England's MPC and the Bank of Japan's Policy Board each hold eight scheduled policy meetings a year. The ECB's Governing Council holds monetary policy meetings roughly every six weeks. Each publishes its schedule well in advance.

Why did a currency fall even though its central bank raised rates?

Usually because the rise was already expected and the accompanying message suggested fewer increases ahead than the market had assumed. Markets trade on changes in expectations, so a "dovish hike" can weaken a currency.

What is the inflation target of most central banks?

The Fed, ECB, Bank of England and Bank of Japan all target 2% inflation, though they measure it differently: PCE for the Fed, HICP for the ECB, CPI for the Bank of England and consumer prices for the Bank of Japan.

How do interest rates affect my trading costs?

Through swaps. When you hold a leveraged position overnight, you pay or receive the interest-rate differential between the two currencies, adjusted by your broker's markup. Over weeks, this can add up to a meaningful cost.