Bank Reserves Fall to $2.92 Trillion, the Lowest Level Since April

Reserve balances held by banks at the Federal Reserve fell to $2.925 trillion in the week averaged through August 26, the lowest level since the week of April 29 and a drop of $10.4 billion from the prior week. The figure comes from the H.4.1 statistical release the Federal Reserve Board published Thursday afternoon, August 27. Reserves are now $300.0 billion below where they stood a year ago and $217.8 billion below their 2026 peak of $3.143 trillion, recorded on July 15. Two forces are pulling in the same direction: the Fed is still shrinking its securities portfolio, and the Treasury is holding $950.7 billion of cash at the central bank, roughly $360.7 billion more than a year ago. Reserves matter because they are the raw material of overnight funding markets. When they grow scarce, short-term rates drift up relative to the Fed’s target, and the Fed has historically slowed or stopped balance sheet runoff. That makes this weekly number one of the better forward indicators of when the Fed balance sheet stops shrinking and, eventually, what happens to the prime rate.

Key Takeaways

Bank reserves fell to $2.925 trillion for the week ended August 26, the lowest since April 29.
That is down $10.4 billion on the week, $217.8 billion from the July peak and $300.0 billion in a year.
The Treasury General Account holds $950.7 billion, up $360.7 billion from a year earlier.
The Fed’s overnight reverse repo facility is nearly empty at $456 million, removing a shock absorber.
The prime rate is unchanged at 6.75%, and the next FOMC decision comes September 16.

What the August 27 H.4.1 Release Showed
Why Reserves Are Draining
What Funding Markets Are Signaling
What This Means for Your Money
Frequently Asked Questions

What the August 27 H.4.1 Release Showed

The Federal Reserve Board releases H.4.1, its weekly balance sheet statement, every Thursday at 4:30 p.m. Eastern. Thursday’s edition covered the week averaged through Wednesday, August 26. Reserve balances with Federal Reserve Banks came in at $2,924,936 million, down $10,351 million from the prior week and down $300,031 million from the same week of 2025. The single-day Wednesday figure was slightly lower still at $2,916,824 million. This was the third consecutive weekly decline, a run that has removed $68.4 billion from the banking system since August 5.

A darkened bank treasury operations floor where rows of monitors display glowing green and amber line charts above empty chairs. — Bank funding desks track the weekly reserve figure the Fed publishes each Thursday.

Total assets on the Fed’s books fell to $6.731 trillion, down $14.8 billion on the week and the smallest balance sheet since July 1. Mortgage-backed securities holdings dropped $17.1 billion to $1.914 trillion, continuing the runoff that carried that portfolio to a five-year low earlier this week. The asset side and the reserve line move together but not one for one, because reserves are what is left after the Fed’s other liabilities take their share. Currency in circulation, the Treasury’s cash account and the reverse repo facility all compete with reserves for the same pool.

Why Reserves Are Draining

Two mechanics explain the slide, and only one of them is Fed policy. The first is quantitative tightening. As Treasury securities and mortgage bonds mature without full reinvestment, the Fed’s assets shrink and reserves shrink alongside them. The second is the Treasury General Account, the checking account the federal government keeps at the Fed. When Treasury collects more in taxes and debt sales than it spends, cash moves out of commercial bank accounts and into that account, and reserves fall by the same amount even though the Fed did nothing.

That second channel is doing heavy lifting right now. The account stood at $950.7 billion on August 26 against $590.0 billion a year earlier, and it touched $1.006 trillion as recently as April 22. Treasury has been rebuilding and defending a large cash buffer while it funds a deficit against a national debt above $40 trillion. This week alone it sold $183 billion of two-year, five-year and seven-year notes, all settling August 31. Settlement pulls cash from buyers into the Treasury’s account, which is another reserve drain landing in next week’s report.

What Funding Markets Are Signaling

The clearest stress gauge is the gap between secured and unsecured overnight rates. The New York Fed reported the Secured Overnight Financing Rate at 3.64% on August 26 on $2.859 trillion of volume, with the 99th percentile of trades at 3.72%. The effective federal funds rate printed 3.63% the same day. SOFR sitting a basis point above the funds rate is not an alarm, but the direction is the point: in a genuinely abundant reserve regime, repo tends to trade at or below the funds rate rather than above it.

The granite columns and bronze doors of the US Treasury Department building in Washington DC under a flat grey overcast sky. — Treasury cash balances held at the Fed act as a direct drain on bank reserves.

The cushion that used to absorb these pressures is gone. The overnight reverse repo facility, which peaked above $2 trillion in 2022 and gave money funds somewhere to park cash, held just $456 million on August 27. With that buffer emptied, every dollar of Treasury cash building or portfolio runoff now comes straight out of reserves. The federal funds target range remains 3.50% to 3.75% after the July 29 decision, which the committee reached on a 9 to 3 vote, and the policy rate has not moved since.

What This Means for Your Money

Nothing in Thursday’s release changes what you pay this month. The prime rate is 6.75% and has been since the last change, so variable-rate credit card APRs, home equity lines and many small business loans are priced off the same benchmark they were priced off in July. Prime moves only when the FOMC moves the funds target, and the next scheduled opportunity is the September 15 and 16 meeting on the Fed meeting calendar.

The indirect path matters more. If reserve scarcity forces the Fed to stop shrinking its portfolio earlier than planned, that is a mild easing of pressure on longer-dated yields, which is the machinery that sets mortgage rates. The ten-year Treasury yield was 4.66% on August 26, with the two-year at 4.19% and the thirty-year at 5.18%. Deposit pricing runs the other way. Banks that need funding tend to compete harder for it, which has historically supported yields on high-yield savings accounts and certificates of deposit even while the policy rate sits still.

Pro Tip

Watch the H.4.1 reserve line every Thursday afternoon rather than waiting for FOMC statements. Funding pressure shows up in this weekly series months before it shows up in a policy decision. If you are shopping for a certificate of deposit, a period of falling reserves is usually a period when banks bid up deposit rates to replace wholesale funding, so it can pay to lock a term before the pressure eases. If you carry a variable-rate balance, the prime rate is what to track, and it will not move until the FOMC moves first.

Frequently Asked Questions

Why are bank reserves falling at the Federal Reserve?

Bank reserves fell to $2.925 trillion in the week ended August 26 for two reasons. The Federal Reserve is still letting securities mature without full reinvestment, which shrinks its balance sheet and reserves together. At the same time the Treasury has built its cash account at the Fed to $950.7 billion, up $360.7 billion in a year, and every dollar moved into that account leaves the banking system. The second factor is fiscal, not monetary, and it is currently the larger of the two.

Do falling reserves mean the Fed will cut interest rates?

No. Reserve balances and the policy rate are separate tools. A reserve shortage would most likely push the Fed to slow or halt balance sheet runoff, or to lend through its standing repo facility, rather than to change the federal funds target. The target range has been 3.50% to 3.75% since the July 29 decision, which passed on a 9 to 3 vote. The committee next meets September 15 and 16, and its choice there will hinge on inflation and employment data, not on the reserve line.

What happens to my credit card APR if reserves keep dropping?

Nothing happens directly. Variable credit card APRs are set as the prime rate plus a margin your issuer assigns, and prime is 6.75% today. Prime changes only when the FOMC changes the federal funds target, so a declining reserve balance has no mechanical path to your statement. The realistic connection is slower and indirect: if funding pressure eventually influences how the committee sets policy, that would show up in prime, and your APR would follow within roughly one to two billing cycles.

How low can reserves go before something breaks?

There is no published threshold, and the Fed has said it cannot identify one in advance. The practical test is whether overnight rates stay inside the target range without official intervention. Right now SOFR at 3.64% against an effective funds rate of 3.63% is orderly. The 2019 episode is the reference point policymakers cite, when repo rates spiked well above target and the Fed resumed buying assets. Watching the spread between those two rates is more informative than watching the reserve level alone.

Should I move money into a CD or savings account now?

That depends on your timeline rather than on this week’s data. Periods of tightening bank funding have historically coincided with more competitive deposit offers, because banks replace wholesale funding with retail deposits. A certificate of deposit locks a rate for a fixed term, which helps if rates later fall, while a savings account stays liquid and reprices in both directions. Compare current offers on our CD rates and savings rates pages before committing funds.

Where can I check the reserve number myself each week?

The Federal Reserve Board publishes H.4.1 every Thursday at 4:30 p.m. Eastern on federalreserve.gov, and the reserve figure appears on the liabilities table as “Reserve balances with Federal Reserve Banks.” The St. Louis Fed carries the same series as WRESBAL, with the Treasury cash account as WTREGEN and total assets as WALCL. Both sources are free. Our Fed balance sheet tracker summarizes the weekly change if you would rather not read the release itself.

Watching the Next Four Thursdays

The $183 billion of notes that settle August 31 will land in the September 3 H.4.1, and quarter-end on September 30 typically adds its own funding squeeze. Between those dates the FOMC meets September 15 and 16. If reserves keep sliding while SOFR pushes further above the funds rate, the case for ending runoff strengthens well before the committee’s own December projections. Track the weekly change on our Fed balance sheet page, the policy path on our 2026 rate forecast, and the borrowing side on our national debt tracker.

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