The Treasury Department is holding $967.9 billion of cash at the Federal Reserve, the largest weekly balance since April 29, and the buildup pulled bank reserves down to $2.895 trillion in the week ended September 2, their lowest level in 39 weeks. The Federal Reserve Board published the figures in its H.4.1 balance sheet release on Thursday, September 3. Reserves fell $30.4 billion over the week while the Treasury General Account rose $17.2 billion, a near mirror image that shows cash draining out of the banking system and into the government’s account. The shift matters because the Fed’s overnight reverse repurchase facility is now effectively empty, leaving reserves as the only cushion in money markets. Secured overnight financing settled at 3.66 percent on September 3, one basis point above what the Fed pays banks on reserves, a signal of tightening funding conditions eight days before the September 15 and 16 FOMC meeting. The prime rate is unchanged at 6.75 percent.
Key Takeaways
- Bank reserves fell $30.4 billion to $2.895 trillion, the lowest weekly level since December 3, 2025.
- The Treasury General Account at the Fed rose $17.2 billion to $967.9 billion, a four month high.
- Overnight reverse repo balances have collapsed to $675 million, leaving reserves as the sole buffer.
- SOFR printed 3.66 percent on September 3, above the 3.65 percent the Fed pays on reserve balances.
- The prime rate holds at 6.75 percent, and the FOMC next meets September 15 and 16.
Table of Contents
What the H.4.1 Release Showed
The Federal Reserve Board publishes H.4.1, its weekly balance sheet statement, every Thursday afternoon. The September 3 edition covered the week ended Wednesday, September 2. Reserve balances held by depository institutions came in at $2,894,531 million, or $2.895 trillion, down from $2,924,936 million a week earlier. That is a decline of $30.4 billion in seven days and the first weekly reading below $2.9 trillion of 2026. The previous low for the year was $2.902 trillion in the week ended January 28. To find a smaller balance you have to go back to the week ended December 3, 2025, when reserves stood at $2.858 trillion, 39 weeks earlier.
The same release put the Treasury General Account, the government’s checking account at the Fed, at $967,935 million on September 2, up $17.2 billion from $950,736 million the week before. That is the highest Wednesday level since April 29, when the account held $981.9 billion. Total Federal Reserve assets edged up $6.3 billion to $6.737 trillion, and securities held outright rose $6.2 billion to $6.468 trillion. Those two figures matter for interpretation. The reserve decline was not caused by the Fed shrinking its balance sheet. The balance sheet grew slightly. Cash simply moved from one liability line to another.
How the Cash Moved
Treasury runs its own daily ledger, the Daily Treasury Statement, which is compiled differently from the Fed’s Wednesday snapshot and does not match it dollar for dollar. That statement shows the account closing August at $1,023.6 billion, above $1 trillion. It then closed at $944.4 billion on September 2 and $903.9 billion on September 3, when withdrawals of $376.7 billion outran deposits of $336.2 billion. The direction of travel across both reports is the same. Treasury spent August rebuilding a large cash cushion, and every dollar it pulls in through tax receipts and debt sales without spending straight back out is a dollar lifted from bank reserves.
The borrowing side explains much of the rebuild. Total public debt outstanding stood at $40,102,964,278,586.10 on September 3, according to Treasury’s Debt to the Penny report, after crossing $40 trillion for the first time in August. Treasury is auctioning heavily this week, including $58 billion of three year notes, $92 billion of 13 week bills, $79 billion of 26 week bills and $75 billion of six week bills on September 8 alone. Settlement proceeds land in the Treasury General Account. Read more on the borrowing program at our national debt tracker.
Why Money Markets Are Tightening
For most of the past four years the Fed’s overnight reverse repurchase facility absorbed excess cash and acted as a shock absorber. That cushion is gone. Balances at the facility were $675 million on September 4 and $525 million on September 2, against a 2026 peak of $26.9 billion on June 30. With the facility drained, any drain on the system now comes directly out of reserve balances, which is exactly what the September 3 H.4.1 showed. Reserve scarcity is not an abstract accounting matter. It is what determines how easily banks and dealers can fund positions overnight.
The pressure is already visible in overnight rates. The Federal Reserve Bank of New York set the Secured Overnight Financing Rate at 3.66 percent on September 3 on $2.949 trillion of volume, with the 99th percentile trade clearing at 3.74 percent. The Fed pays 3.65 percent on reserve balances, and the effective federal funds rate held at 3.63 percent. Secured funding printing above the rate banks earn on reserves is a classic sign that collateral is plentiful and cash is not. SOFR has now settled at or above the reserve rate on August 31, September 1 and September 3, three of four business days, after spending most of the summer below it. Our interest rate hub tracks these benchmarks.
What It Means for Your Money
None of this changes your borrowing costs today. The prime rate, the benchmark that sets pricing on most variable rate consumer credit, is 6.75 percent and moves only when the FOMC changes the federal funds target. Credit card APRs, home equity lines and variable student loans track prime, so they are steady until the Fed acts. What reserve scarcity does change is the backdrop the committee walks into on September 15. Policymakers weighing a rate increase now have to weigh it against a funding market with no spare cushion, which is an argument for moving carefully. Our Fed rate forecast lays out the scenarios.
Longer term borrowing costs are set in the bond market rather than at the Fed, and those rates have drifted up. The 10 year Treasury yield closed at 4.77 percent on September 3, the two year at 4.34 percent and the 30 year at 5.25 percent. Freddie Mac’s 30 year fixed mortgage rate averaged 6.71 percent in the week ended September 3, up from 6.66 percent a week earlier. Savers get the other side of this trade. Banks that need to hold on to deposits when reserves are scarce compete harder on yield, which tends to support high yield savings rates and CD rates.
Pro Tip
If you are shopping a CD or a savings account, check quoted yields again in the days right after a Fed meeting rather than before it. Banks reprice deposits on their own schedule, and periods when reserves are tight tend to keep promotional yields on the table longer. Lock a term only once you have compared at least three institutions, because the spread between the best and the average payer is usually wider than any single Fed move.
Frequently Asked Questions
What is the Treasury General Account balance?
The Treasury General Account is the federal government’s checking account at the Federal Reserve. It held $967.9 billion on September 2, 2026, according to the Fed’s H.4.1 release, the highest Wednesday level since April 29. Treasury’s own Daily Treasury Statement, which is compiled on a different basis, put the closing balance at $903.9 billion on September 3.
Why do bank reserves fall when Treasury builds cash?
The Fed’s balance sheet has a fixed size on any given day, so its liabilities have to add up. Reserve balances and the Treasury General Account are both liabilities. When Treasury collects taxes or auction proceeds and parks them at the Fed, that money leaves commercial bank accounts and lands in the government’s. Reserves fall by roughly the same amount, which is what happened in the week ended September 2.
Does this mean my credit card rate is going up?
Not because of this release. Variable rate credit cards are priced off the prime rate, which is 6.75 percent and changes only when the FOMC moves its federal funds target. Reserve scarcity is a plumbing issue in overnight funding markets, not a policy decision. Your APR would change only if the committee raises or lowers rates, and the next opportunity is September 15 and 16.
What does SOFR above the reserve rate signal?
The Secured Overnight Financing Rate settled at 3.66 percent on September 3 while the Fed paid 3.65 percent on reserve balances. When secured borrowing costs more than parking cash at the Fed, it usually means cash is scarce relative to the collateral seeking funding. It is an early warning indicator rather than a crisis signal, and the Fed watches it closely.
When will the Fed decide on rates?
The Federal Open Market Committee meets September 15 and 16, 2026, and releases its statement on the second afternoon. The committee held its target range at its July 28 and 29 meeting on a 9 to 3 vote with three dissents favoring a higher rate. August payrolls came in at 162,000 with unemployment at 4.1 percent, which strengthened the case for an increase.
Should I lock a mortgage rate now?
That depends on your timeline rather than on this week’s reserve data. Freddie Mac put the 30 year fixed average at 6.71 percent in the week ended September 3, up from 6.66 percent. Mortgage pricing follows the 10 year Treasury yield, which finished September 3 at 4.77 percent. If you are within 45 days of closing, a lock removes the risk around the September FOMC meeting.
Watching the Week Ahead
The next H.4.1 release lands Thursday, September 10, and will show whether reserves kept sliding as this week’s auction proceeds settled. August consumer price data follows on September 11, the last inflation reading before the FOMC convenes. Track the benchmark at our prime rate page, follow the borrowing side at interest on the national debt, and see how policy reaches household borrowing costs at how the Fed affects loans.
References
- Federal Reserve Board. H.4.1 Factors Affecting Reserve Balances, September 3, 2026. https://www.federalreserve.gov/releases/h41/
- FRED. Reserve Balances with Federal Reserve Banks, series WRESBAL. https://fred.stlouisfed.org/series/WRESBAL
- FRED. Treasury General Account, Wednesday level, series WTREGEN. https://fred.stlouisfed.org/series/WTREGEN
- FRED. Overnight Reverse Repurchase Agreements, series RRPONTSYD. https://fred.stlouisfed.org/series/RRPONTSYD
- Federal Reserve Bank of New York. Secured Overnight Financing Rate, September 3, 2026. https://www.newyorkfed.org/markets/reference-rates/sofr
- U.S. Treasury Fiscal Data. Daily Treasury Statement, operating cash balance. https://fiscaldata.treasury.gov/datasets/daily-treasury-statement/operating-cash-balance
- U.S. Treasury Fiscal Data. Debt to the Penny, September 3, 2026. https://fiscaldata.treasury.gov/datasets/debt-to-the-penny/debt-to-the-penny
- Federal Reserve Board. H.15 Selected Interest Rates. https://www.federalreserve.gov/releases/h15/
- Federal Reserve Board. FOMC meeting calendar. https://www.federalreserve.gov/monetarypolicy/fomccalendars.htm
