Will the Bank of Japan announce a 25 bps increase at the September 2026 meeting?

Analysis

The Bank of Japan has already told markets where this is going. Its July outlook projects inflation running clearly above the 2 percent target from the second half of fiscal 2026. The bank stated plainly it intends to keep raising the policy rate. Holding at 1 percent that month looked like a pause setting up the next step, not a retreat. A weak yen adds further pressure. It has already forced joint currency intervention, and a quarter-point rise is the conventional response. That move also fits the inflation path the bank itself describes. Mid-August reporting already treated a 25 basis point increase as the clear favourite outcome for the September 17-18 meeting, and that view lines up closely with the bank's own published language. The counterargument is real. Central banks talk tough and then find reasons to wait: a soft inflation print, a stock market scare, or political sensitivity given how closely Japan's leadership watches export competitiveness. A month is enough time for something to go sideways. Meeting language can still be read as ambiguous after the fact. Even so, the weight of evidence points one way. Inflation guidance, currency pressure, and the bank's own stated intent to keep tightening all point toward action rather than another pause. The thing to watch: domestic inflation and wage data released before the meeting. A clear undershoot there is the development most likely to force a rethink.