What Is Quantitative Easing (QE)?

Quantitative easing (QE), sometimes searched as q easing, is when a central bank creates bank reserves and uses them to buy assets at scale. Those assets are usually longer-term government bonds, and sometimes other securities. The aim is to ease borrowing conditions when the short-term policy rate is already very low, or when markets are not working well. In the United Kingdom that rate is Bank Rate. In the United States it is the federal funds rate. QE is not cash printed for households. It is not the same decision as a government spending bill, though the two can interact. This page is educational only. It is not investment advice.

Why QE appeared

Conventional monetary policy works mainly by changing that short rate. When the rate approaches zero, or a small effective lower bound, cutting further becomes hard. After the 2008 financial crisis, the Federal Reserve, the Bank of England, and later the European Central Bank expanded their balance sheets through large-scale asset purchases. During the Covid shock, many central banks used QE again to stabilise markets and support the recovery.

QE tries to lower longer-term yields, compress risk premia, and encourage investors to shift into other assets. Lower yields can support borrowing, asset prices, and spending. The effects arrive with lags, and they are uneven across households.

The Bank of England QE explainer puts the UK case in plain terms. QE is a tool for the 2% inflation target. The Bank buys bonds to push prices up and yields down, so longer term rates on savings and loans fall. It says the money did not come from taxation or government borrowing. The Bank created central bank reserves and used them to buy the bonds. The same page says the Bank bought £895 billion of bonds in total, £875 billion of them UK government bonds (gilts) and £20 billion UK corporate bonds, and that the last announced increase was in November 2020. Those figures are the purchase history on that page, which was updated in December 2025. They are not the size of the remaining stock. Maturities and sales have reduced holdings since the buying stopped. For the current position, use the Bank's QE page together with the latest Asset Purchase Facility market notice.

How the mechanics work

In simplified form, the central bank buys bonds from the private sector, often through dealers. Sellers receive reserves at commercial banks. If the purchases remove duration or scarcity from the market, bond prices rise and yields fall. Bank reserves rise on the liability side of the central bank balance sheet. Securities holdings rise on the asset side.

Portfolio balance channel. Investors who sold safe bonds may buy corporate bonds, equities, or foreign assets, which can ease conditions more broadly.
Signalling channel. Large purchases can reinforce guidance that policy will stay accommodative.
Liquidity channel. In stress, a willingness to buy can restore market functioning even before yields move much.

QE changes the mix of assets the private sector holds. It does not, by itself, decide how much the government spends.

What QE is not

QE is often confused with financing the budget deficit directly. In UK and US frameworks, fiscal authorities still issue debt and set spending and taxes. The central bank's purchases are monetary operations with a different legal and operational purpose. Helicopter money, meaning direct transfers financed by the central bank, is a different concept. It is not how standard QE programmes in the UK and the US were designed.

QE also does not guarantee higher consumer price inflation in the short run. From 2009 through the late 2010s, large balance sheets coexisted with subdued inflation in several economies. Banks and households were repairing balance sheets, and expectations remained anchored. When QE coincides with large fiscal expansions and supply constraints, as in parts of 2020 and 2021, inflation can rise for many overlapping reasons. Attribution takes care.

A classroom way to see why extra money need not raise prices one for one is the quantity theory identity. The velocity of money calculator solves that identity with numbers you type. It does not model a central bank balance sheet. The money supply M1 and M2 explainer covers why a jump in a published aggregate is not, by itself, an inflation forecast. Definition changes, including the 2020 US shift of many savings deposits into M1, can move a series on their own.

An open market purchase also creates reserves. A textbook money multiplier would turn a reserve injection into a larger change in deposits, one bank at a time. The money multiplier calculator shows those rounds, and a smaller multiple once banks hold excess reserves or the public holds currency. It does not model a central bank balance sheet.

Exit, QT, and the balance sheet

When inflation risks rise, or when the central bank wants a smaller portfolio, it may stop stimulus purchases and then reduce holdings. That unwind is quantitative tightening, or QT. QT can come from maturing bonds that are not replaced, from sales, or from both. Draining reserves can put some upward pressure on longer term yields, other things equal. The pace matters. A rush can harm market functioning. A very slow pace can leave conditions looser than the central bank intends. That is a description of the mechanism, not a view on what a central bank should do.

United Kingdom. The Bank of England says the Monetary Policy Committee (MPC) decided in February 2022 to start reducing the bonds bought under QE. Its explainer is explicit about the purpose. Unlike QE, which has been used to lower interest rates and support inflation when it is too low, the Bank says the aim of QT is not to set interest rates or inflation. The aim is to make it possible to use QE again later if that is needed for the inflation target. Bank Rate remains the active policy tool.

On 17 September 2026 the Bank published a market notice on how it would implement the MPC decision from the meeting ending 16 September 2026. The notice says the MPC set a multi-year path to reduce the stock of gilts held for monetary policy purposes toward zero, through annual sales of £20 billion alongside maturing gilts. It also says Asset Purchase Facility auctions would pause while the Bank reviewed a model of selling some gilts to the government, at market prices, with HM Treasury and the Debt Management Office. Some holdings are described as being kept until they mature. A separate long-dated slice is described as backing banknote issuance, rather than sitting in the active sale plan. Those splits, and the pause, can change. If a later notice conflicts with the December 2025 explainer on what the Bank is doing now, prefer the later notice. This page does not track the stock day by day.

United States. Federal Reserve QE purchases focused on Treasury securities and agency mortgage-backed securities, held in the System Open Market Account (SOMA) at the New York Fed. From June 2022 the Federal Open Market Committee reduced securities holdings mainly by capping how much principal it reinvested, rather than by a matching programme of active sales. The Board's policy normalization page says that on 29 October 2025 the Committee announced runoff would stop on 1 December 2025. Treasury principal would be rolled over at auction. Principal from agency securities would be reinvested in Treasury bills. The same page says that, from the start of that runoff until the decision to stop, securities holdings fell by more than $2.2 trillion.

After runoff stopped, the New York Fed's Open Market Trading Desk was directed, when appropriate, to buy Treasury bills and, if needed, other Treasury securities with three years or less left to maturity, so that reserves stay ample. Those reserve management purchases keep an ample reserves system working as other liabilities grow. They are not the same decision as buying longer-term bonds to ease financial conditions when the federal funds rate is pinned near zero. The Committee still treats the federal funds rate as its primary tool for the stance of policy. Current holdings are on the New York Fed SOMA page and in the weekly H.4.1 release. FRED series WALCL is the total assets line. This site does not reprint a live stock.

Example (not advice)

Illustrative only. Suppose a central bank holds a large stock of government bonds and lets some mature each month without reinvestment. Reserves tend to fall over time, other things equal. The Federal Reserve and the Bank of England publish the actual instruction. This box is a sketch of the direction of travel. It is not a forecast, not a schedule, and not advice.

Distributional and risk debates

Critics argue QE lifts asset prices in ways that favour people who already hold wealth. The Bank of England's public summary of its research says older people gained more from higher asset values, while people of working age gained more from jobs and incomes, and that the combined income and wealth effects did not raise inequality. Supporters of QE also note that a deeper downturn hurts workers, and that the stated goal is macro stabilisation when rate cuts are exhausted. Another debate concerns the boundary between fiscal policy and monetary policy. Large central bank holdings of government debt blur perceptions even when operational independence remains. These are public debates. This explainer does not settle them. For the separate claim that budget needs drive the inflation outcome, read fiscal dominance.

Balance sheet size versus policy stance

A large central bank balance sheet does not automatically mean easy money forever. The stance is the policy rate path, the expected path of the balance sheet, and broader financial conditions, taken together. Markets care about the stock of holdings and about the flow of purchases or runoff. Announcing a slower runoff can ease conditions even if the stock is still large. Announcing faster sales can tighten them.

Researchers also separate purchases aimed at broken markets from purchases aimed at lowering yields when the economy is weak. The same operational tool can serve different goals in different episodes. The policy statement from that episode matters more than a slogan about QE.

For a benchmark that sometimes prescribed a negative policy rate when the short rate was stuck near zero, read the Taylor rule explainer. A gap between that benchmark and a near zero funds rate describes a constraint. It is not a trading signal. Nothing on this page recommends buying, selling, or holding any security.

UK and US notes

For UK readers, gilt market functioning and defined-benefit pension hedging have at times interacted with monetary operations in ways the US Treasury market does not copy. For US readers, agency mortgage-backed securities in Fed QE add a housing finance channel that was less central to Bank of England gilt purchases. Comparative history is useful. Copying a lesson from one country onto the other is not.

Yields across maturities are the yield curve. QE is aimed mainly at longer maturities, while the policy rate anchors the front of the curve. The yield curve spread calculator is arithmetic on two yields you type. It does not say that a curve position is a reason to trade.

Real interest rates are nominal yields after inflation. QE can move nominal yields. It does not hand you a real rate. The real interest rate calculator shows the subtraction shortcut and the multiplicative form with numbers you choose. The inflation adjuster is a separate sketch of how a price path changes a cash amount.

Country context sits on the United States and United Kingdom pages. The monetary and fiscal policy topic is the pillar for how the two arms of policy differ. Short definitions live in the glossary: quantitative easing, bond, policy rate, M1, and M2.

Common questions

What is quantitative easing?

Quantitative easing (QE), sometimes searched as q easing, is when a central bank creates bank reserves and uses them to buy assets, usually longer-term government bonds. The aim is to lower longer term borrowing costs when the short-term policy rate has little room to fall, or to help markets function in stress. In the United Kingdom that short rate is Bank Rate. In the United States it is the federal funds rate.

Is quantitative easing the same as printing money?

Not in the everyday sense of printing banknotes and posting them to households. The Bank of England describes QE as creating central bank reserves in electronic form and using them to buy bonds from investors such as asset managers. Those reserves sit in the banking system. They are not a cash gift, and they do not by themselves decide government spending or taxes.

How is QE different from government spending?

Spending and taxes are fiscal policy, set by government. QE is a monetary operation. The central bank buys assets and the private sector swaps bonds for reserves. In the UK and the US, parliament or Congress still sets the budget. A large central bank holding of government debt can blur how that split looks. That blur is not the same idea as fiscal dominance, which is about budget pressure constraining the inflation goal.

What is quantitative tightening?

Quantitative tightening (QT) is the unwind of a QE portfolio. The central bank can let bonds mature without replacing them, sell bonds, or do both. The Bank of England says its QT is not a tool for setting interest rates. Bank Rate stays the active tool, and the stated aim is to leave room to use QE again if inflation control later requires it. In September 2026 the Monetary Policy Committee set a multi-year path to reduce gilts held for monetary policy purposes, combining maturing gilts with sales, and the Bank paused Asset Purchase Facility auctions while it reviewed how those sales would run. The Federal Reserve reduced securities holdings from June 2022 mainly by limiting reinvestment, then stopped that runoff on 1 December 2025. Later purchases of short-term Treasuries to keep bank reserves ample are an implementation step in an ample reserves system. They are not the same choice as crisis era QE.

Does quantitative easing cause inflation?

It is designed to support spending, and that can put upward pressure on prices. That is why central banks have used it when inflation was below target and the policy rate could not be cut much further. It does not produce a fixed, one for one rise in consumer prices on a timetable. After 2008, several economies held large central bank balance sheets while inflation stayed subdued for years, partly because banks and households were repairing balance sheets and inflation expectations stayed anchored. In 2020 and 2021, QE overlapped with large fiscal support and supply constraints, so many forces moved prices at once. Money growth, velocity, credit, and spare capacity all belong in that reading. This page does not forecast inflation and it is not investment advice.