Bank of England Rate Decision September 17: Hold or Hike?

Last verified: Sep 16, 2026.

At a glance

• Decision date: Thursday September 17, 2026
• Current base rate: 3.75% (held since December 2025)
• September hike odds: 35% priced
• November hike odds: 80% priced
• December hike odds: Virtual certainty, peak 4.0–4.1%
• Investor path: 5 hikes to 5% by November 2027
• Economist path (Peel Hunt): Hold rest of 2026, two cuts in 2027

What the Bank of England will likely decide on September 17

The MPC is widely expected to hold the base rate at 3.75%, but the path beyond that has tightened materially.

Money markets are pricing only a 35% probability of a 25-basis-point hike at the September 17 meeting — a relatively low bar for a hike. The bigger shift has been toward the November 5 and December 18 meetings, where investors are now pricing an 80% probability of a hike by November and a virtual certainty of one more by December (Mortgage Introducer, September 16, 2026).

The August 2026 CPI print of 3.1% was in line with City economist forecasts, removing the hawkish surprise that would have triggered a September hike. Governor Andrew Bailey has maintained a cautious tone in recent weeks, citing continued uncertainty over the Middle East and oil prices above $100 a barrel. A base rate hold allows the MPC to gather more data before committing to further tightening, particularly with the Chancellor's October 28 Budget looming.

The MPC voting blocs: Pill's 3-person hawkish wing

Three MPC members voted for a hike at the July 31 meeting, led by chief economist Huw Pill.

The July 31 vote was 6–3 in favor of holding the base rate at 3.75%. The three dissenters — Huw Pill, Megan Greene, and Catherine L Mann — voted for an immediate 25-basis-point hike to 4.0%. Pill argued in a September 7 speech that a hike would send a "clear and unambiguous signal" on inflation risks, warning that delay risked a "bias to the status quo" as energy-related pressures persisted (Mortgage Introducer, September 16, 2026).

External member Megan Greene is widely viewed as the most hawkish voter; her academic work has emphasized supply-driven inflation persistence. Catherine L Mann, another external member, has historically been hawkish on services inflation. Together, the three hawks form a meaningful minority that could shift the vote to 5–4 in favor of a hike if September CPI surprises higher or if Middle East tensions push oil prices above $105 a barrel.

The economist camp vs the investor camp

Investors expect five hikes to 5% by November 2027; economists expect the Bank to hold and then cut.

Bond markets are pricing a meaningfully more hawkish path than economists expect. Investors have placed bets on the Bank Rate reaching 5% by November 2027 — five 25-basis-point hikes from the current 3.75%. Some economists, including Kallum Pickering at Peel Hunt, expect the Bank to hold for the rest of 2026 and then cut twice in 2027 once energy-related inflation fades (Daily Mail, September 16, 2026).

The gap between investor pricing and economist forecasts is unusually wide. Pickering noted: "I can seldom remember a time when my own view on the likely path for Bank of England monetary policy has differed so much from that of money markets." The disagreement reflects uncertainty over how persistent the energy-driven inflation shock will be and whether the Chancellor's October 28 Budget will include fiscal stimulus or restraint.

The October 28 Budget as the next critical datapoint

The Chancellor's first Budget on October 28 could shift the inflation path and force a Bank of England response.

Chancellor John Healey's first Budget on October 28 will set the fiscal stance for the UK economy heading into 2027. If Healey delivers tax cuts or spending increases that the Bank views as inflationary, the MPC will likely respond with a November hike to 4.0%. If the Budget delivers restraint or addresses the energy bill spike directly (e.g., windfall tax adjustments, energy bill subsidies), the November hike probability could fall back toward 50% (Daily Mail, September 16, 2026).

Investors are also watching for any signal of fiscal slippage. UK government borrowing costs spiked to their highest level since late 2013 — when the UK was exiting its international bailout — as debt investors upped bets on ECB rate increases and broader inflation persistence. The 10-year gilt yield at 5.25% reflects concerns that fiscal space is narrowing at exactly the wrong time.

Three near-term datapoints. First, the September 17 BoE rate decision itself — a 25-basis-point hike would be a hawkish surprise that pushes 2-year fixed mortgage rates above 5.85%. Second, the October 16 UK September CPI release — the data point the November MPC will lean on most heavily. Third, the October 28 Chancellor Healey Budget — fiscal slippage could trigger gilt yield rises above 5.5% and a forceful Bank of England response in November.