The Fed's Balance Sheet: What It Actually Is

Like any bank, the Federal Reserve has a balance sheet — a list of what it owns (assets) and what it owes (liabilities) — and tracking its size over time is one of the clearest ways to see quantitative easing and quantitative tightening actually happening, beyond just reading about them abstractly. On the asset side, the Fed's holdings are overwhelmingly U.S. Treasury securities and mortgage-backed securities, accumulated through its various bond-purchase programs over the years. On the liability side, the two largest items are currency in circulation (the physical dollar bills in wallets and cash registers everywhere) and bank reserves — the balances commercial banks keep on deposit at the Fed itself.

For decades before 2008, the Fed's total balance sheet stayed relatively modest, well under $1 trillion. That changed dramatically with the 2008 financial crisis and the multiple rounds of quantitative easing that followed, pushing the balance sheet to several trillion dollars within just a few years — one of the most significant expansions in the Fed's history, at the time. It happened again, even more dramatically, during the 2020 COVID-19 pandemic response, when a combination of aggressive QE and emergency lending programs pushed the balance sheet to its largest size ever recorded.