Bank of Japan Interest Rate Decision

The Bank of Japan (BoJ) interest rate decision is the most important scheduled event for the yen and affects currency pairs such as USD/JPY, and sometimes stock indices and crypto. This event differs from Federal Reserve or European Central Bank decisions in two important ways: its announcement time is not fixed, and it usually arrives early in the morning Tehran time, when many Iranian traders are not yet at their charts. At the top of this page you can see the current rate, the date of the next meeting and Japan's interest rate history since 2000; this guide explains how the decision is made and why the market reaction to it is sometimes sharp.

How does the Bank of Japan decide on interest rates?

Japan's monetary policy is set by the bank's Policy Board, a nine-member board made up of the Governor, two Deputy Governors and six other members. The board holds 8 monetary policy meetings a year, each lasting two days, with the decision announced on the second day. The Bank of Japan's inflation target is 2 percent.

The decision is made by vote, and the number of dissenting votes is published with the statement. This number is often an important signal: if several members voted for a rate change, the market sees a higher chance of a change at upcoming meetings. At four of the eight meetings, the Outlook Report (BOJ Outlook Report) is also published, containing the bank's growth and inflation forecasts. The Summary of Opinions is released about a week later, and the full minutes are published after the following meeting.

What time is Japan's interest rate decision announced in Tehran time?

The Bank of Japan has no fixed time for announcing its decision; the statement is released when the meeting ends, which is usually around noon Tokyo time. Neither Japan nor Iran observes daylight saving time, so the time difference between the two countries is five and a half hours all year round, and unlike US and European news, the time of this event does not shift between summer and winter.

• Decision statement: Usually between about 6 and 8 a.m. Tehran time; the time shown in the calendar is approximate.
• Governor's press conference: 15:30 Tokyo time, i.e. 10 a.m. Tehran time.

The statement is released in the middle of the Tokyo session, when liquidity is lower than during London and New York hours. See the sessions table on the World Market Hours page.

From negative rates to normalization: why is the Bank of Japan different?

The chart at the top of the page shows that Japan's interest rate has been almost always near zero since 2000. In 2016 the Bank of Japan took its rate negative and at the same time adopted yield curve control for 10-year Japanese government bonds. The exit from negative rates came in 2024, and since then every move by the bank has been interpreted as part of the monetary policy "normalization" process.

Because rate changes in Japan are few and small, on decision day the market looks more at these signals:

• the tone of the statement on inflation and wages, and whether the bank sees conditions as ready for the next step;
• decisions on purchases of Japanese government bonds;
• the number of dissenting votes;
• the Governor's remarks at the press conference, which sometimes create a second, bigger move than the statement itself.

Impact of the Bank of Japan decision on the yen and other markets

The yen and the interest rate differential

The yen's value depends largely on the gap between Japan's interest rate and those of other countries, especially the US. That is why USD/JPY is sensitive both to this decision and to the Federal Reserve interest rate decision. A more hawkish tone than expected usually strengthens the yen and a softer tone weakens it; but this is only a tendency, and sometimes the market has already priced everything in before the meeting.

The yen carry trade

Japan's low interest rate has led many traders to borrow in yen and invest in yielding assets; this is called a carry trade, and the interest rate difference in it is what shows up in forex accounts as swap or rollover . If the Bank of Japan turns unexpectedly hawkish, the rapid unwinding of these trades can sharply strengthen the yen and at the same time put pressure on indices such as the Nasdaq 100 and the crypto market. Volatile pairs such as GBP/JPY also make bigger moves on these days.

Currency intervention is different from the rate decision

The decision to intervene in the currency market to support the yen rests with Japan's Ministry of Finance, and the central bank only carries it out. So a sudden yen move in the days around a meeting is not necessarily related to the interest rate decision.

Practical tips for Bank of Japan decision day

1. If you hold yen positions overnight, keep in mind the decision may be announced before you wake up; set your stop loss and position size the night before.
2. During the Asian session, spreads on yen pairs are wider at many brokers and the chance of orders being filled at a worse price is higher.
3. Also keep 10 a.m. Tehran time in mind; the press conference can change the direction of the day.
4. Calculate your position size with the Trader's Calculator and compare Japan's rate with other banks on the Central Bank Interest Rates page.

This page is for information only and is not a recommendation to buy or sell.