The Bank of Japan's September meeting minutes show clear divisions within the policy board over the pace of interest rate hikes, with hawks calling for rates to be pushed toward target levels as soon as possible, while a government representative made a rare intervention urging the central bank to act prudently.

According to the minutes released on Thursday, multiple members explicitly stated the need to continue tightening monetary policy beyond the September hike. One member said that if signs of upward price deviations emerge, the central bank "will need to accelerate the pace of rate hikes." Another member said moving the policy rate closer to target levels "relatively quickly" would help create room to respond to economic surprises.

At the same time, a Cabinet Office representative at the meeting unusually urged the central bank to "carefully examine the cumulative effects of past rate hikes" and suggested that estimates of the neutral interest rate should be taken into consideration.

These government remarks cooled market expectations for a consecutive rate hike in October, and the yen weakened immediately, briefly breaking through the 158 yen per dollar threshold. A quarterly survey released the same day also showed limited signs of rising inflation expectations, further reducing market bets on an October rate hike.

Hawkish Calls: Move Toward Rate Target Quickly

At the September meeting, the Bank of Japan raised its benchmark rate to 1.25%, a 31-year high. The minutes show that most members believed inflationary pressures were continuing to build and that further rate hikes were necessary.

Several members noted that underlying inflation had reached or was approaching the central bank's 2% target. One member said that while there was no need to act hastily, rate hikes should be used to prevent excessive and sustained price increases, and projected that underlying inflation would soon hit 2%. Another member emphasized that given significant upside risks to prices, the central bank "should continue to act in a timely manner and should not become overly cautious," while also recommending strengthened analysis of neutral rate estimates.

The minutes also noted that the Bank of Japan faces greater pressure to raise rates than other central banks, because its policy rate remains at the low end of Japan's estimated nominal neutral rate range of 1.1% to 2.5%.

Dovish Resistance: Weak Consumption and Government Pressure

However, not all members of the nine-person policy board believed the time was ripe for a rate hike. Members Toichiro Asada and Ayano Sato voted against the September rate increase. The minutes included some opinions — possibly from these two members — warning that sluggish consumption and weak growth in services inflation constituted reasons to keep policy unchanged.

More noteworthy was the government's stance. The Cabinet Office representative at the meeting urged the central bank to carefully assess the cumulative effects of rate hikes and said that "looking ahead, it may be necessary for the central bank to take its neutral rate estimates into consideration." According to Reuters, the Cabinet Office representative attending the September meeting was Economic Minister Minoru Kiuchi. Kiuchi is seen as an ally of Prime Minister Sanae Takaichi, who herself is cautious about central bank rate hikes, partly because rising interest rates would increase the financing costs of her ambitious fiscal spending plans.

October Rate Hike Expectations Under Pressure

The government representative's wording led some market participants to believe that the government was effectively signaling that the central bank's policy normalization was nearing its end. Katsutoshi Inadome, a senior strategist at Sumitomo Mitsui Trust Asset Management, said, "The government appears to be expressing that the central bank's policy normalization is nearly complete and that additional rate hikes may not be necessary."

The yen broke through the 158 level on Thursday, reflecting a clear pullback in market expectations for an October rate hike. The quarterly survey released the same day also did not show inflation expectations rising enough to support an immediate rate hike, further weakening the urgency for near-term action. Analysts had previously expected the Bank of Japan's next rate hike to land in October or December, but the government's public remarks have significantly increased uncertainty around that timing window.