BOJ lifts rates to 31-year high, flags policy pivot to preemptive inflation fight

By Leika Kihara and Makiko Yamazaki

TOKYO, Sept 18 (Reuters) – The Bank of Japan raised interest rates to a 31-year high on Friday, with its governor signalling the central bank has entered a new phase focused on preventing inflation from overshooting its target, opening the door to further rate hikes.

But the hawkish message failed to rally the yen. Instead, the currency weakened as investors seized on dissent from two policymakers who argued the BOJ should remain patient in raising borrowing costs.

BOJ Governor Kazuo Ueda said with underlying inflation approaching 2%, the bank’s focus had shifted from pushing prices up to target to guarding against an inflation overshoot.

“If risks of underlying inflation overshooting 2% materialise, that could have a negative impact on Japan’s economy,” he told a news conference.

“It’s important to stabilise underlying inflation at 2%. Our policy phase has changed,” Ueda said in his strongest remark to date on the central bank’s resolve to combat price pressures through continued rate hikes.

Ueda said he would not rule out either back-to-back rate hikes or increases of 50 basis points. He stressed, however, that the BOJ aims to act preemptively to avoid being forced into large moves that could unsettle financial markets.

“Ueda’s message appears to be that the BOJ is keeping its option of further rate hikes open and keeping close watch on inflation to stabilise it,” said Vasu Menon, managing director of investment strategy at OCBC in Singapore.

“Overall, the BOJ’s decision and Ueda’s comments point to a modestly hawkish medium-term stance. However, the near-term message is not hawkish enough to trigger a significant repricing of the yen.”

At the two-day meeting ending on Friday, the BOJ raised its policy rate to 1.25% from 1% by a 7-2 vote. Dovish board members Toichiro Asada and Ayano Sato dissented from the decision.

The move follows rate hikes by its European and US peers, highlighting central banks’ focus on global inflation risks caused by the Iran war-induced energy cost spike, expansionary fiscal policies and surging demand for AI investment.

It was the first hike in three months and takes interest rates closer to levels the BOJ deems neutral to the economy, marking another step away from decades of ultra-low rates that cemented the yen’s status as a cheap global funding currency.

In a statement announcing the decision, the BOJ said while economic and price developments are moving in line with its baseline forecast, there was a risk of underlying inflation deviating from its 2% target.

“Wholesale inflation remains elevated and price pressures from business-to-business trading have started to spill over into consumer prices,” the BOJ said.

“Underlying inflation has been approaching 2%” as companies continue to pass on the cost of higher wages and inflation expectations keep heightening, it said.

LAGGING PEERS

The BOJ exited a decade-long stimulus in 2024 and has raised rates several times, including in June, at a pace of roughly twice a year on the view Japan was making progress in durably achieving its 2% inflation target.

Friday’s hike to 1.25% brings the rate within the BOJ’s estimated 1.1% to 2.5% range of Japan’s nominal neutral rate, or the level that neither cools nor overheats growth, raising questions about how far it could eventually hike rates.

But the BOJ still lags global peers with its policy rate lower than that of the European Central Bank, which raised its key rate last week to 2.5%, and the Fed’s 3.75%-4.00% range.

The slow pace of BOJ rate hikes had been blamed for causing a weak yen that pushes up import costs and broader inflation.

Core consumer inflation held steady near the BOJ’s 2% target in August, data showed on Friday, as companies continued to pass on rising costs for a wide range of food and grocery items.

Analysts polled by Reuters expect the BOJ to hike rates to 1.5% by end-March next year and then to 1.75% in the second quarter of 2027. Most saw the terminal rate as being at least 1.75%.

AMBIGUITY MAY PREVAIL

Markets had nearly fully priced in a September rate hike after a slew of hawkish BOJ signals, including its warning in July of the risk of an inflation overshoot from soaring fuel costs, rising import costs from a weak yen and strong AI demand.

US Treasury Secretary Scott Bessent also piled in, saying he voiced his strong support for “decisive” monetary steps to combat yen weakness in a meeting with Ueda this month, held on the sidelines of a G20 finance leaders’ gathering.

In agreeing to join Japan’s yen-buying intervention, Bessent also urged Prime Minister Sanae Takaichi’s administration to avoid ramping up fiscal stimulus – a move running counter to the BOJ’s efforts to rein in inflation, sources have told Reuters.

But many BOJ officials, including Ueda, had remained vague on the potential speed and degree of future rate hikes, arguing that much would depend on the inflation outlook and how the bank’s past rate hikes could affect financial conditions.

(Reporting by Leika Kihara and Makiko Yamazaki; additional reporting by Satoshi Sugiyama and Hina Suzuki; Editing by Sam Holmes and Shri Navaratnam)