USD/JPY Forecast: Can a BOJ Rate Hike Overpower Fed Hawkishness and Push the Pair Below 150?

Key Takeaways

• USD/JPY is trading near 154.00 ahead of monetary-policy decisions from the Federal Reserve on Wednesday and the Bank of Japan on Friday.
• Markets expect the BOJ to raise its policy rate by 25 basis points to 1.25%, its highest level in more than three decades.
• A BOJ hike alone may not push USD/JPY below 150 because the Fed is also expected to raise rates, leaving the US-Japan policy-rate gap broadly unchanged.
• A sustained break below 150 would probably require hawkish BOJ guidance, falling US Treasury yields and evidence that Japan will continue tightening after September.

USD/JPY recovered toward 154.00 at the beginning of the week as traders prepared for a rare combination of potential interest-rate increases from both the Federal Reserve and the Bank of Japan.

The Japanese yen has strengthened significantly since USD/JPY approached 164 in July. The pair recently touched a seven-month low near 152.90, supported by Japanese currency intervention, expectations of higher BOJ rates and an unwinding of speculative yen-funded positions.

However, the path below 150 remains difficult. The Federal Reserve is also expected to raise borrowing costs this week as higher oil prices and persistent US inflation reinforce its hawkish policy stance. The USD/JPY forecast therefore depends on which central bank delivers the larger policy surprise, rather than which one simply raises rates.

When Are the Fed and BOJ Rate Decisions?

The Federal Reserve will announce its policy decision on Wednesday, September 16. The Bank of Japan will conclude its two-day meeting on Friday, September 18.

The BOJ’s meeting dates are listed in its official 2026 policy calendar, while the Fed decision will be accompanied by updated economic and interest-rate projections.

Markets assign an approximately 86% to 90% probability to a Fed hike. Expectations for a BOJ increase have also risen sharply, with traders pricing an approximately 80% probability that the Japanese policy rate will reach 1.25%.

Why a BOJ Rate Hike May Not Be Enough

Currency markets are heavily influenced by interest-rate differentials. Higher yields generally attract capital, while lower yields make a currency more attractive as a source of cheap financing.

The current midpoint of the US federal funds target range is 3.625%, compared with Japan’s 1% policy rate. That creates a difference of approximately 2.625 percentage points.

If both central banks raise rates by 25 basis points, the midpoint of the US range would rise to 3.875%, while Japan’s rate would reach 1.25%. The rate gap would remain at approximately 2.625 percentage points.

A simultaneous increase would therefore leave the basic carry-trade advantage of the dollar largely intact. For USD/JPY to fall decisively below 150, investors would need to believe that the BOJ will continue raising rates faster than the Fed after this week.

Why the BOJ Is Expected to Raise Rates

The Bank of Japan left its overnight call-rate target at approximately 1% in July, but the decision was not unanimous.

Board member Hajime Takata proposed raising the rate to 1.25%, arguing that the inflation environment had entered a new phase and required a more flexible response. The proposal was rejected by an 8-to-1 vote, according to the BOJ’s July policy statement.

Since then, policymakers have delivered increasingly hawkish signals. Board member Kazuyuki Masu said underlying inflation was approaching the BOJ’s 2% objective and indicated that the policy rate remained below its neutral level. He also warned that the central bank might need to accelerate tightening if inflation continued to rise under unusually accommodative financial conditions. Masu’s September speech strengthened expectations for action this week.

Japan’s July inflation data also supported the case for a hike:

• Headline CPI increased 1.9% year over year.
• CPI excluding fresh food rose 1.8%.
• Inflation excluding fresh food and energy reached 1.9%.
• Real wages increased 2.4%, their strongest gain since 2021.

Although inflation remains close to the BOJ’s target rather than substantially above it, stronger real wages suggest that households may be better positioned to absorb higher borrowing costs. Rising global energy prices also threaten to lift Japan’s import bill and create additional price pressure if the yen weakens again.

Fed Hawkishness Remains the Main Obstacle to 150

The Federal Reserve is confronting its own inflation problem.

US headline CPI increased 0.4% in August and 3.4% from a year earlier. Core inflation rose 0.3% for the month, while producer prices increased 5.4% annually.

The rise in oil prices has intensified the pressure. Brent crude has climbed above $107 per barrel, while WTI is trading above $102 following disruptions around the Strait of Hormuz and the shutdown of Saudi Arabia’s East-West pipeline.

Higher energy costs have pushed the US 10-year Treasury yield toward 4.97%, its highest level since October 2023. The 30-year yield has risen above 5.35%.

These yields provide strong support for the dollar. Even if the BOJ raises rates, USD/JPY may struggle to fall below 150 if Chair Kevin Warsh signals that further Fed tightening will be necessary to prevent energy inflation from spreading into other prices.

The dollar has also benefited from safe-haven demand related to the US-Iran conflict. Although the yen is traditionally considered a defensive currency, recent geopolitical tension has supported both currencies, limiting the directional signal for USD/JPY.

What Would Push USD/JPY Below 150?

A move below 150 is possible, but the BOJ would need to exceed already elevated market expectations.

The most yen-positive outcome would combine a 25-basis-point hike with clear guidance that another increase could follow in October or December. Governor Kazuo Ueda would also need to express confidence that wages and underlying inflation can remain near 2%.

Falling US Treasury yields would strengthen the move. If the Fed raises rates but describes the decision as a one-time response to the oil shock, markets could reduce expectations for additional US hikes. A retreat in the 10-year Treasury yield from nearly 5% would narrow the expected return advantage of dollar assets.

A break below 150 would become more likely if:

• The BOJ raises its policy rate to 1.25%.
• Ueda signals another increase before the end of 2026.
• The Fed delivers a less hawkish dot plot than markets expect.
• The US 10-year Treasury yield falls below 4.85%.
• Japanese institutional investors repatriate capital into higher-yielding domestic bonds.
• Oil prices stabilize, reducing inflation expectations in the United States.
• Japan’s authorities maintain a credible threat of further currency intervention.

A standard BOJ hike accompanied by cautious guidance may produce only a temporary yen rally. Because the move is substantially priced in, traders could sell the yen if Ueda avoids committing to another increase.

Intervention Has Changed the USD/JPY Market

Japan spent ¥15.399 trillion on foreign-exchange intervention between July 30 and August 26, according to the Ministry of Finance.

The operations began after USD/JPY approached 164, its highest level in approximately four decades. Japan also received unusual support from the US Treasury, strengthening the credibility of the intervention.

The yen initially advanced toward 155 before some of those gains faded. More recently, expectations of BOJ tightening helped the currency reach approximately 153.40, its strongest level of 2026.

Intervention alone rarely produces a durable currency reversal. Its effectiveness generally improves when official purchases are supported by changes in monetary policy and interest-rate expectations. A BOJ hike would therefore give the July and August operations greater fundamental support.

The prospect of renewed intervention is more relevant if USD/JPY rebounds toward 158 or 160. At current levels near 154, Japanese authorities may prefer to rely on interest-rate policy and verbal warnings unless market volatility becomes disorderly.

USD/JPY Technical Levels to Watch

USD/JPY retains a mildly bearish short-term bias while trading below the former support zone around 155.20 to 155.30.

USD/JPY Support Levels

The first significant support is located around 152.00, corresponding to an important retracement area and the lower boundary of the pair’s recent trading range.

The next zone extends from 150.00 to approximately 149.17. The psychological significance of 150 may attract buyers, while 149.17 represents a deeper technical retracement of the previous advance.

A sustained break below 149.17 could expose 147.00 and then approximately 145.14. Such a decline would probably require a substantial narrowing of US-Japan yield differentials rather than a BOJ hike alone.

USD/JPY Resistance Levels

Initial resistance is located between 155.20 and 155.30. A daily close above this zone would weaken the immediate bearish setup.

The next resistance levels are near 157.00 and 158.00. A break above 158 could return 160 to focus and revive concerns about additional Japanese intervention.

The pair’s technical structure therefore favors further yen strength below 155.30, but the 150 area remains a major barrier. Recent technical analysis identifies 152.00 and 149.17 as the principal downside levels.

USD/JPY Forecast Scenarios

The base case is for both central banks to raise rates by 25 basis points. That combination may keep USD/JPY between 152 and 155.50 because the policy-rate differential would remain broadly unchanged.

A move below 150 would become more credible if the BOJ signals another near-term hike while the Fed suggests that September’s increase is not the beginning of a prolonged tightening cycle.

USD/JPY Outlook After the BOJ Decision

The yen has stronger fundamental support than it did when USD/JPY approached 164. Japanese rates are rising, domestic inflation is near target, real wages have improved and policymakers have demonstrated their willingness to intervene.

However, Fed hawkishness and US Treasury yields near multi-year highs remain significant obstacles. A 25-basis-point BOJ increase is unlikely to push USD/JPY sustainably below 150 if the Fed delivers an equally hawkish hike and signals further tightening.

The most important message will come from the BOJ’s forward guidance. If Ueda indicates that 1.25% remains below neutral and another increase could arrive before year-end, USD/JPY may break through 150 and target the 149.17 area. If he emphasizes gradualism, the pair could rebound above 155 even after the rate increase.