US Treasury Secretary Scott Bessent, who had been a vocal advocate for tighter Japanese monetary policy, declined to offer direct advice when asked point-blank whether the Bank of Japan should raise rates again.

During an NHK interview in early August, Bessent said he would not advise BoJ Governor Kazuo Ueda on whether to pursue back-to-back rate increases. He cited respect for the central bank's independence and expressed confidence in Ueda's ability to navigate Japan's economic landscape.

From megaphone to microphone off

From roughly October 2025 through mid-2026, Bessent repeatedly urged the Japanese government to let the BoJ operate with greater autonomy — a not-so-subtle way of saying "let them raise rates." His public silence now marks a shift in tone, even as the substance of his preference — higher Japanese rates — appears unchanged.

The BoJ hiked its policy rate to 0.75% in December 2025 and has since raised it to 1%. Market participants have been speculating about further increases in September or October 2026, which made the NHK interviewer's question about back-to-back hikes particularly timely.

The yen, the intervention, and the politics

US and Japanese officials conducted a joint currency intervention around July 31 to August 1, 2026, a rare coordinated move aimed at propping up the yen. It also illustrated why Washington's stance is intertwined with Japan's rate path: higher Japanese rates tend to support the yen by narrowing the interest-rate gap with the United States, reducing the appeal of borrowing in yen to buy higher-yielding assets elsewhere — the so-called carry trade that has long made Japan's ultra-cheap money a source of global liquidity.

Prime Minister Sanae Takaichi has historically favored looser monetary policy, putting her at odds with Bessent's hawkish preferences. The result is a policy triangle: the US Treasury Secretary wants higher Japanese rates, the Japanese prime minister prefers lower ones, and the BoJ governor sits in the middle, making decisions based on economic data while two powerful politicians send conflicting signals.

What traders are watching

The BoJ's policy rate at 1% is already historically significant for Japan, a country that spent decades in negative or near-zero territory following the collapse of its asset-price bubble in the early 1990s. Upcoming BoJ meetings in September and October 2026 will serve as critical inflection points. If the central bank proceeds with additional hikes, it would suggest Ueda is moving in the direction Bessent has long advocated. If the BoJ holds, it could signal that domestic political pressure from Takaichi's camp is winning the tug-of-war.