By This Hour Business Desk

The Bank of England’s indication that quantitative tightening could cost the Treasury £120bn has renewed a difficult question about who should bear responsibility when monetary policy produces large and immediate calls on public funds. The estimate, highlighted in a Guardian editorial, has become more than an argument over central-bank accounting. It raises a constitutional issue: ministers are expected to answer for the state of the public finances, while key decisions affecting those finances are made by an independent institution.

The editorial’s case is that the framework built around Bank independence has not kept pace with the balance-sheet policies adopted after the financial crisis. Quantitative easing put the Bank in the position of buying large quantities of government bonds to support the economy. Quantitative tightening, the process of reducing those holdings, can expose losses that must be met under an arrangement between the Bank and the Treasury. The editorial argues that the resulting fiscal consequences are too substantial to be treated as a peripheral effect of monetary policy.

Its proposed remedy is forceful: reconsider the course of quantitative tightening and end the Treasury’s continuing indemnity for losses associated with the Bank’s Asset Purchase Facility. But the question is not simply whether losses exist. It is also how they are measured, when they are recognised, and whether the timing of cash transfers should dictate the policy judgment. Those distinctions lie at the heart of the disagreement described in the editorial.

A settlement designed for a narrower divide

The institutional distinction was initially clear in principle. When the Bank gained independence in 1997, the Bank was responsible for monetary policy, including interest-rate decisions, while the Treasury and ministers retained responsibility for taxation, spending and budgetary choices. The expectation was that monetary policy would influence public finances indirectly, through the economy, inflation and borrowing conditions, rather than by creating large and direct transfers between public bodies.

That separation became harder to maintain after the 2009 financial crisis. The Guardian editorial says the Bank bought government bonds through quantitative easing, placing them in the Asset Purchase Facility, a Bank subsidiary. The Treasury stood behind the gains and losses on those holdings through an indemnity created after the crisis. In the editorial’s account, that arrangement was altered in 2012 under George Osborne so that it operated through quarterly cash transfers.

The mechanism mattered in both directions. When interest rates were low, the editorial says, the Treasury received £124bn. Once rates rose, the flow reversed and losses began to require payments from ministers to the Bank. The same indemnity that had produced a fiscal gain therefore became a fiscal cost. That chronology complicates any simple claim that the arrangement was either plainly beneficial or plainly damaging across its entire life.

Yet the editorial’s concern is directed at the present burden, not merely the historical ledger. It says ministers paid £17bn in the previous year to cover losses, which it characterises as arguably notional. Its argument is that an uncapped commitment can continue to require Treasury payments even after the earlier receipts have effectively been offset. For an elected government trying to allocate money among public services, the cash requirement carries political significance regardless of whether the associated loss is seen as an accounting effect or an economic cost.

Why selling bonds can generate pressure on the public finances

The editorial identifies three routes through which losses arise in the Asset Purchase Facility. First, it says, the Bank sells gilts at prevailing market prices. Higher yields than those in the period when quantitative easing was operating reduce the value of bonds already held, meaning sales can crystallise losses relative to the price paid.

Second, the editorial describes a mismatch between the income generated by the bonds and the cost of servicing the financing used to acquire them. It says the facility held about £500bn of bonds and that their income is lower than repayments charged at Bank Rate on the relevant loan. As interest rates rise, that differential can become more costly. The point is important because it means pressure need not depend only on active sales of bonds; it can arise from the way the portfolio is financed.

Third, the editorial says that gilts bought above their value are recorded as losses when they mature. The three channels make quantitative tightening a process with more than one budgetary effect. A discussion limited to sales would miss the ongoing financing cost and the accounting treatment at maturity. Equally, the presence of several channels does not settle the larger argument over how much weight policymakers should assign to them when setting the pace of balance-sheet reduction.

For the editorial, the practical consequence is a loss of the neat line between monetary and fiscal action. A decision made to manage the Bank’s holdings can trigger transfers from the Treasury. That leaves ministers facing spending and political choices shaped by a Monetary Policy Committee they do not direct. The editorial says such consequences cannot simply be insulated from democratic challenge by invoking the principle of central-bank independence.

The dispute turns on timing as much as total cost

The reported £120bn figure is the focal point of the argument, but it is not presented as the only way to assess quantitative tightening. Andrew Bailey, the Bank’s governor, is reported to have described its overall cost as neutral when judged over six decades. That position does not necessarily contradict an estimate of very substantial near-term Treasury costs. The two claims use different horizons and may be addressing different questions.

A long-run assessment can seek to net gains and losses over the lifespan of the policy arrangements. The editorial’s counterargument, attributed to economist Patricia Pino, is that sizeable cash demands occur within a parliamentary period. Governments prepare budgets, make spending choices and face elections in far shorter cycles than six decades. A cost that may be offset eventually can still constrain decisions made now.

This is therefore not a straightforward disagreement over arithmetic. It concerns whether economic neutrality over a very long period is an adequate answer to cash transfers arriving during a government’s term. Bailey’s reported view places emphasis on the full duration of the policy. Pino’s reported objection places emphasis on fiscal capacity and political accountability in the period when payments fall due. Neither framing is inherently answered by the other.

The editorial comes down firmly on the shorter-horizon concern. It treats the immediate fiscal burden as evidence that the indemnity has become unsustainable and that the Bank’s choices have acquired consequences too close to fiscal policy to be left outside ordinary political scrutiny. However, the supplied account does not independently establish the accounting basis for calling the losses notional, nor does it demonstrate that ending the indemnity would remove the underlying economic exposure rather than alter when and how it is recognised.

Reported coordination raises a further accountability question

The editorial also refers to a recent report that the Bank and Treasury were preparing changes to quantitative tightening intended to reduce pressure to raise interest rates. If accurate, that would add another layer to the debate. It would suggest that the two institutions are seeking a practical adjustment to a policy whose monetary and fiscal effects have become difficult to separate.

Such coordination could be read in different ways. It may reflect an effort to reduce unwanted pressure generated by the existing approach. It may also invite questions about how decisions are reached when the Treasury is exposed to the cost of the Bank’s balance-sheet policy. The editorial interprets the prospect as a retreat from a more distinct conception of independence, in favour of less visible coordination between officials.

The core issue is not whether the Bank should lose its ability to make monetary-policy decisions. Rather, it is whether an independence settlement designed around interest-rate setting can comfortably govern policies that create substantial transfers involving public money. The editorial argues it cannot, particularly where ministers absorb the fiscal and electoral consequences.

That conclusion remains an editorial judgment, based on a single source account and not an independently verified reconstruction of the Bank’s balance sheet, the Treasury’s accounting or the reported policy discussions. The £120bn estimate, the £17bn payment, the historical £124bn gain and the reported changes to quantitative tightening have not been independently corroborated here. The source material also does not resolve whether the preferred remedy would improve the public finances or merely shift the presentation and timing of costs.

Still, the reported figures frame a durable policy dilemma. Quantitative easing and its unwinding have tied the Bank’s balance sheet more closely to Treasury cash flows than the original model of independence anticipated. Whether policymakers revise the pace of quantitative tightening, change the indemnity, or retain the existing arrangement, the central tension identified by the editorial will persist: public accountability is difficult to divide cleanly when monetary choices have direct fiscal effects.

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Reporting notes

What is confirmed: The supplied account describes earlier Treasury gains when rates were low and later losses as rates rose.

Why this matters: The issue concerns direct Treasury cash transfers arising from decisions made by an independent central bank.

What remains unclear: The underlying accounting, the reported £120bn estimate and any planned QT changes have not been independently corroborated. This report is based on one source and has not been independently corroborated.

Sources