RBNZ Faces Intense Policy Debate Ahead of May Cash Rate Decision

The Reserve Bank of New Zealand is preparing for a highly contested monetary policy meeting next week, with economists predicting a hold but anticipating a vigorous internal debate over a potential interest rate hike. While the vast majority of financial market analysts forecast that the central bank will maintain the Official Cash Rate at 2.25% on May 27, 2026, persistent domestic inflation pressures and rising expectations have reignited discussions about further monetary tightening.

Stubborn Inflation and Rising Expectations

New Zealand's annual Consumers Price Index inflation for the March 2026 quarter was recorded at 3.1%, remaining unchanged from the previous quarter. This level sits stubbornly above the central bank's medium-term target range of 1-3%, complicating the path toward price stability. This persistent inflation is compounded by the May 2026 Survey of Expectations, published on May 13, 2026, which revealed a sharp upward trajectory in inflation expectations. One-year-ahead inflation expectations rose to 3.41%, whilst the critical two-year-ahead inflation expectations reached 2.53%.

These rising short and medium-term expectations present a significant challenge for the Monetary Policy Committee as it seeks to anchor inflation within its designated target range. Although the general consensus points to a hold at 2.25% next week, the underlying data suggests that the central bank's job is far from complete, raising the likelihood of a revised policy track in the near future.

Monetary Policy Committee Dynamics and Forecast Revisions

A Reuters poll of 29 economists conducted between May 18-22, 2026 showed all but one forecasting a hold at 2.25%. However, Westpac Chief Economist Kelly Eckhold expects a close vote within the committee, noting that some members may advocate for an immediate 25 basis point hike to bring the cash rate to 2.5%. This potential split reflects a growing divergence in how policymakers view the balance of risks.

At its previous meeting on April 8, 2026, the committee reached a consensus to hold the cash rate at 2.25%, though some members emphasized the arguments for an early monetary policy response due to ongoing inflation risks. Since that decision, the macroeconomic environment has grown more complex, leading commercial banks to adjust their projections. Westpac expects the central bank to revise its projected peak cash rate upward by approximately 0.2 percentage points to a terminal rate of around 3.2%. Furthermore, projects that the central bank's forecast for December 2026 will rise by 0.4-0.5 percentage points to approximately .