Published on: 2026-09-15
The Bank of England is widely expected to keep Bank Rate at 3.75% on Thursday while cutting its annual quantitative tightening target from £70bn to around £50bn. Yet active gilt sales could fall only from £21bn to about £19.5bn because far fewer bonds are due to mature in the next cycle. On those estimates, 92.5% of the £20bn QT slowdown would come from fewer maturities rather than a major reduction in outright selling.
Markets expect annual BoE QT to fall from £70bn to around £50bn, while a 3.75% Bank Rate hold remains the consensus for 17 September.
Passive gilt maturities could fall from roughly £49bn to £30.5bn, accounting for more than 90% of the expected QT slowdown.
Active gilt sales could decline by only £1.5bn, from £21bn to around £19.5bn.
The BoE has already scheduled no long-dated gilt auctions from July to September, shifting focus to the maturity mix of the next programme.
Quantitative tightening reduces the stock of gilts the BoE accumulated during quantitative easing. The Bank can shrink those holdings by letting bonds mature without reinvesting the proceeds or by actively selling existing gilts to private hands.
The distinction is crucial to Thursday’s expected £50bn figure.
| Component | 2025/26 | 2026/27 if QT = £50bn |
| Passive maturities | ~£49bn | £30.5bn |
| Active gilt sales | £21bn | £19.5bn |
| Total QT | £70bn | £50bn |
The current £49bn maturity figure is implied by the BoE’s £70bn total reduction and £21bn of active sales. BBH estimates £30.5bn of maturities in the coming cycle, leaving roughly £19.5bn of active sales under a £50bn programme.
That breaks the £20bn slowdown into £18.5bn fewer maturities and only £1.5bn fewer active sales.
More than 90% of the expected slowdown would therefore reflect the maturity calendar rather than a large retreat from outright selling.
The Bank has already become more selective at the long end.
Its July to September schedule contains three short-maturity auctions and two medium-maturity auctions, with no sales above 20 years. The BoE had already decided in September 2025 to sell fewer long-dated gilts to better reflect demand conditions.
The July Market Participants Survey points to the same bias for the next cycle. Respondents expected 43.3% of active sales in three-to-seven-year gilts, 41.1% in seven-to-20-year gilts and only 15.6% above 20 years. Reuters reports that Deutsche Bank expects long-dated active sales to stop entirely.
The timing is sensitive. On 8 September, the UK DMO sold £4.25bn of 30-year gilts at a 5.8168% yield, the highest comparable borrowing cost since 1998.
BoE active sales do not create new government debt. They increase the supply of existing gilt duration that private portfolios must absorb, on top of new gilts issued by the DMO. If demand does not rise with that supply, prices may need to fall enough to attract buyers, pushing yields higher.
Long-term gilt yields reflect expected future short-term rates plus a term premium, the extra return required to hold longer-duration debt.
The BoE estimates that cumulative QT has raised the 10-year gilt yield by roughly 20 to 30 basis points since 2022. Over the same period, the 10-year yield rose about 350 basis points, with around 200 basis points associated with higher term premia.
Morgan Stanley estimates the effect could be nearer 70 basis points at the 30-year point, highlighting why maturity can alter the impact.
Those figures should not be read as precise causal measurements. The BoE explicitly cautions that QT’s impact is difficult to isolate, while earlier event studies found auction effects could be short-lived and estimates could either overstate or understate the lasting effect.
QT remains one influence among inflation expectations, government issuance, global yields and changing demand for long-duration gilts.
A smaller QT target can coexist with an unchanged or even more hawkish Bank Rate stance.
The BoE regards Bank Rate as its active monetary-policy tool, while QT is designed to unwind QE holdings gradually and predictably. September 2025 provides the clearest precedent. The MPC held Bank Rate at 4% while reducing annual QT from £100bn to £70bn and shifting sales away from longer maturities.
July’s 6-3 vote also showed three MPC members already favoured raising Bank Rate from 3.75% to 4%. Reuters’ September poll still found unanimous economist expectations for a hold this week, although market pricing has assigned a meaningful chance to a surprise increase.
A slower balance-sheet unwind therefore does not automatically signal a softer inflation stance.
The BoE also differs from the Federal Reserve here. Its QT programme has included outright gilt sales, whereas the Fed’s latest balance-sheet reduction relied primarily on securities running off at maturity. The Fed ended that runoff on 1 December 2025, while the BoE continues actively returning bonds to private portfolios.
Gilts have the most direct exposure. Fewer active sales, particularly at long maturities, could remove some supply pressure, although other forces can easily overwhelm that effect.
For GBP, the Bank Rate vote, inflation guidance and expected UK-US rate differentials are likely to carry more weight than the QT headline alone. Slower QT could reduce some support from longer-term UK yields, but it does not mechanically translate into a weaker pound.
Lower long-term yields can also ease financing and valuation pressure on domestically sensitive UK companies. The FTSE 250 has a cleaner link to domestic financial conditions than the FTSE 100, where overseas earnings and sterling movements complicate the response.
The BoE’s July survey put the median expected QT reduction for October 2026 to September 2027 at £50bn, with the middle half of responses between £50bn and £55bn.
| BoE outcome | What it could signal |
| Around £50bn | Broadly expected |
| Below £50bn | More cautious QT |
| Near £70bn | Faster unwind |
| No 20+ year sales | Stronger long-end adjustment |
| Higher long-end share | More duration returned to market |
The useful order on Thursday is Bank Rate and the MPC vote, total QT, active sales, then the maturity split.
A £50bn headline could meet expectations while the composition still delivers the surprise.
Yes. Active sales can be reduced or stopped, while the APF could still shrink as existing holdings mature unless the BoE resumes reinvestment.
It could remove one source of upward pressure, particularly if long-dated sales are reduced. Inflation expectations, fiscal conditions, DMO issuance and global bond markets can still dominate the move.
Yes. Bank Rate controls the monetary-policy stance, while QT also reflects the pace of balance-sheet normalisation and conditions in the gilt market. The two decisions do not have to move together.
The BoE will set its next annual QT programme on 17 September 2026. A £50bn target would land directly on the July survey median, leaving the active-sales total and treatment of gilts above 20 years to reveal the larger policy shift.
More than 90% of the expected slowdown comes from maturities. What the BoE chooses to keep selling will tell us far more.
