Published November 12, 2026 · By
The October budget deficit reached $404 billion, the Treasury Department said Thursday, the largest shortfall ever recorded for the month and a 42% jump from a year earlier. October is the first month of the federal fiscal year, so the figure is the opening number for fiscal 2027. Spending hit a record for the month while tax receipts fell, with lower customs collections, larger refunds and higher interest costs all playing a role.
Here is what the new data shows, what drove it, how it fits with the ongoing tariff refund fight and what it could mean for your household budget.
October Budget Deficit: What the Treasury Reported
According to the Treasury's Monthly Treasury Statement, as reported by Reuters and Bloomberg News, the government spent $773 billion in October and collected $369 billion. That left a gap of $404 billion, which Reuters described as a record for the month and $120 billion, or 42%, higher than in October 2025. The year-earlier shortfall was roughly $284 billion.
Receipts fell $35 billion, or 9%, from a year earlier. Outlays rose $84 billion, or 12%, to the highest October level on record. In other words, the October budget deficit grew from both directions at once: less money came in and more money went out.
The calendar effect on the October budget deficit
Monthly budget figures are often distorted by the calendar. November 1 fell on a weekend in both 2025 and 2026, so some benefit payments due in November were sent in October in both years. Treasury said that, after adjusting for those timing shifts, the deficit would have been $285 billion, up $94 billion, or 49%, from the prior year. Even on that adjusted basis, the October budget deficit was significantly wider than a year ago.
How it compares with the CBO estimate
The nonpartisan Congressional Budget Office had previewed the number earlier in the week. In its Monthly Budget Review published November 9, CBO estimated an October shortfall of $409 billion, $125 billion more than in October 2025. CBO said revenues were $36 billion lower and outlays $89 billion higher than a year earlier. The final Treasury figure came in about $5 billion below that estimate.
Why the October Budget Deficit Widened
Several separate forces pushed the numbers in the same direction. Some are one-time timing quirks, while others reflect longer-running trends in federal spending and revenue.
Lower tariff revenue and bigger refunds
Bloomberg News reported that tariff revenue fell roughly 39% from October 2025 to about $19.2 billion, and that larger tariff and corporate tax refunds weighed on receipts. Reuters pointed to lower net customs duty collections. Bloomberg added that tariff refunds have slowed since the summer. The decline follows the Supreme Court's February 20, 2026 ruling that the International Emergency Economic Powers Act did not authorize the broad tariffs imposed under it, which led U.S. Customs and Border Protection to begin paying refunds.
Weaker non-withheld tax payments
Individual income taxes not withheld from paychecks, such as estimated payments, came in $29 billion, or 36%, lower than a year earlier, according to Reuters. Last year's figure had been inflated because filing deadlines for Californians affected by the 2025 wildfires were pushed back to October 15, 2025. That one-time boost did not repeat this year, which makes the drop in receipts look larger than the underlying trend.
Military, farm aid and interest costs
On the spending side of the October budget deficit, Reuters reported that military outlays rose $28 billion, or 30%. That increase partly reflects a payment to military trust funds that was delayed by last year's government shutdown, along with higher operations, maintenance and procurement spending. Agriculture Department spending rose $14 billion, or 80%, because of farm relief payments.
Gross interest on the federal debt climbed $11 billion, or 11%, to $115 billion for the month. Bloomberg also cited higher health care spending as a driver of the larger October budget deficit.
The Bigger Picture: A $2 Trillion Year
The October budget deficit follows a fiscal year that ended with a large gap. According to CBO, the fiscal 2026 deficit was $1.992 trillion, up $217 billion, or 12%, from fiscal 2025. That equals 6.2% of gross domestic product, compared with 5.8% the year before and a 50-year average of 3.8%. Debt held by the public reached about 100% of GDP.
CBO reported fiscal 2026 receipts of $5.403 trillion and outlays of $7.396 trillion. Net interest on the public debt rose 11.1% to $1.142 trillion, which CBO attributed to higher debt and higher long-term interest rates. Social Security outlays rose 5.5% to $1.654 trillion, Medicare 7.7% to $1.069 trillion and Medicaid 8.2% to $723 billion. Bloomberg reported that Treasury's own estimate puts the gap for the new fiscal year at roughly $2.2 trillion.
Customs duties, which include tariffs, totaled $173 billion in fiscal 2026, down 11.1% from the prior year, CBO said. CBO noted that CBP reported about $126 billion in refunds during the year on tariffs covered by the court decision, including interest.
The Tariff Refund Fight Behind the Numbers
How fast the remaining tariff money goes back to importers could keep shaping monthly results such as the October budget deficit. Fortune reported this week that class counsel in Freestyle World, Inc. v. United States asked the U.S. Court of International Trade on November 10 to order refunds to all of the roughly 330,000 importers of record that paid the duties, not only those that sued. The total at stake is about $166 billion, and lawyers for the class are seeking full refunds with interest.
The administration has taken a different position. The Justice Department has appealed Judge Richard Eaton's earlier universal refund order and argues that refunds should go only to importers that filed suit. In a court filing cited by Fortune, the department said CBP has no authority to reliquidate or refund money without a court order. The government's deadline to respond to the class motion is December 9.
The Reuters and Bloomberg reports on Thursday's release did not cite comments from administration officials or congressional leaders on the October budget deficit. CBO, which does not make policy recommendations, presented its figures without advocating any course of action.
What the October Budget Deficit Means for You
A single monthly number does not change your taxes or benefits on its own. Still, the trends behind the October budget deficit connect to several parts of household finances. The points below are our own analysis based on the reported data.
Borrowing costs
A gap the size of the October budget deficit means the Treasury must sell more bonds to cover it. Heavy borrowing is one of several factors investors weigh when setting long-term interest rates, alongside inflation and Federal Reserve policy. The 10-year Treasury yield recently climbed back above 5%, and that benchmark influences mortgage rates, auto loans and some business lending. Higher rates also raise the government's own interest bill, which already exceeded $1.1 trillion last fiscal year.
Social Security, Medicare and Medicaid
The three largest benefit programs together accounted for more than $3.4 trillion in spending last year, according to CBO. Their growth is a major part of long-term budget debates in Congress. Benefits are paid under current law regardless of the monthly budget result, but questions about the program's finances remain, as covered in our report on the Social Security trust fund.
Prices and tariff refunds
Tariff refunds go to importers of record, not directly to consumers. Some companies that raised prices because of tariffs could choose to pass savings along, but they are not required to do so. If you run a small business that imported goods and paid these duties, it may be worth checking whether you have an unclaimed refund through CBP's process or the pending class action.
How to follow the data
- Treasury publishes its Monthly Treasury Statement about eight business days after each month ends.
- CBO releases a Monthly Budget Review a few days earlier with its own estimate.
- CBO plans to publish its 2027 to 2037 budget outlook early next calendar year.
- The government's response in the tariff refund class action is due December 9.
For now, the October budget deficit sets a starting point for fiscal 2027 that is well above last year's pace. Whether that gap narrows will depend on tariff refunds, interest rates, tax receipts and spending decisions made in Washington in the months ahead.
This article is for information only and is not financial advice.
Sources: U.S. Department of the Treasury, Monthly Treasury Statement (via Reuters, November 12, 2026); Bloomberg News via Transport Topics (November 12, 2026); Congressional Budget Office, Monthly Budget Review (November 9, 2026); Fortune (November 12, 2026).
