Tariff revenue goes to the U.S. Treasury’s General Fund, the federal government’s main operating account, where it mixes with income taxes, payroll taxes, corporate taxes, and every other federal receipt. From there, Congress spends it through the annual appropriations process on whatever it chooses, with no line tying a specific tariff dollar to a specific program. A few narrow carve-outs sit outside that pool, and a portion of the money eventually flows back out to farmers hurt by retaliation and to importers who re-export their goods.
The General Fund Is the Destination
Federal law requires that money collected by U.S. Customs and Border Protection be deposited into the Treasury without any deduction.1Office of the Law Revision Counsel. 31 U.S.C. 3302 – Custodians of Money CBP does not keep the tariffs it collects. The funds enter the General Fund and lose their identity as tariff revenue, becoming part of the same pool the Treasury uses to pay military salaries, issue Social Security checks, and meet every other federal obligation.
The design is deliberate. No single agency controls its own revenue stream, and no tariff dollar is set aside for a particular purpose once it enters the fund. It simply becomes part of the total money Congress can spend.
Who Actually Pays the Tariff
A common misconception is worth clearing up, because it changes how you read the rest of this. Foreign countries do not pay U.S. tariffs. Under CBP rules, the importer of record — an American company or individual bringing goods into the country — is legally responsible for every dollar owed.2U.S. Customs and Border Protection. Internet Purchases The foreign seller never sends a payment to the Treasury.
Because importers bear the cost, they often pass some or all of it along through higher prices. A tariff on imported steel raises the cost for a domestic manufacturer that buys that steel, and that manufacturer may charge more for its finished products. The economic burden shifts through the supply chain, but the legal obligation to pay the government sits with the importer.
What Congress Spends It On
The Constitution gives Congress the exclusive power to impose duties and decide how federal money is spent.3Legal Information Institute. Article I, Section 8, Clause 1 – General Welfare Because tariff revenue enters the General Fund without restrictions, it moves through the same annual appropriations process as every other federal dollar. The pool supports the full range of federal spending:
- National defense, including military operations, equipment, and personnel
- Infrastructure such as highways, bridges, and federal buildings
- Public lands, national parks, and wildlife management
- Social programs, safety net benefits, and public health
Every tariff dollar collected also reduces the gap between what the government spends and what it takes in, so tariff revenue functions in part as deficit reduction whenever spending isn’t raised to match.
How Much Money Is Involved
The share of the federal budget financed by tariffs has grown sharply. Following a series of executive actions in 2025 that raised rates on a wide range of imports, the Congressional Budget Office estimates that customs duties will reach roughly $418 billion in 2026, or about 1.3 percent of GDP. That is more than double the 0.6 percent share in 2025.4Congressional Budget Office. The Budget and Economic Outlook: 2026 to 2036 At that level, tariff revenue would exceed corporate income tax collections for the first time since at least 1934.
For scale, total federal revenue in 2026 is projected at $5.6 trillion, with individual income taxes and payroll taxes making up the largest shares.4Congressional Budget Office. The Budget and Economic Outlook: 2026 to 2036 The CBO projects that customs duties will add roughly $3.4 trillion over the following decade compared to pre-tariff baselines, though tariff receipts should gradually decline as a share of GDP because higher rates tend to reduce import volumes. As businesses find domestic alternatives or consumers buy less of the affected goods, the tax base shrinks even when rates stay elevated.
Fees That Don’t Enter the General Fund
Not everything CBP collects at the border is a tariff, and two significant items are earmarked outside the General Fund.
The Merchandise Processing Fee
Every formal import entry triggers a merchandise processing fee equal to 0.3464 percent of the cargo’s value. For fiscal year 2026, the fee cannot be less than $33.58 or more than $651.50 per entry.5U.S. Customs and Border Protection. Customs User Fee – Merchandise Processing Fees These fees flow into a separate Customs User Fee Account and can only pay for CBP’s own customs operations and technology systems, not general government spending.6Office of the Law Revision Counsel. 19 U.S.C. 58c – Fees for Certain Customs Services
The Harbor Maintenance Tax
Commercial cargo arriving at U.S. ports is subject to a harbor maintenance tax of 0.125 percent of the cargo’s value.7Office of the Law Revision Counsel. 26 U.S.C. 4461 – Imposition of Tax Revenue flows into the Harbor Maintenance Trust Fund, a dedicated account that pays for port dredging, navigation channel upkeep, and related work by the Army Corps of Engineers.8Office of the Law Revision Counsel. 26 U.S.C. 9505 – Harbor Maintenance Trust Fund Unlike general tariff duties, this money cannot be redirected to unrelated programs.
Money That Flows Back Out
Some of the revenue that enters the Treasury eventually leaves through two channels tied directly to trade.
Aid to Farmers Hit by Retaliation
The Commodity Credit Corporation, housed within the Department of Agriculture, is the primary vehicle for sending trade-related payments back to affected producers. Federal law authorizes the CCC to support agricultural prices through direct payments, purchases, and loans.9Office of the Law Revision Counsel. 15 U.S.C. 714c – Specific Powers of Corporation
When foreign governments impose retaliatory tariffs on U.S. farm exports, the CCC distributes aid. Under the Market Facilitation Program used in prior disputes, payments were based on a farmer’s planted acreage and the specific crops targeted by retaliation.10eCFR. 7 CFR Part 1409 – Trade Mitigation Program Soybeans, corn, and dairy have historically received the largest shares. In early 2026, the CCC issued a new round of assistance through the Farmer Bridge Assistance Program, providing approximately $11 billion in one-time payments to help producers weather trade disruptions and rising production costs while waiting for longer-term agricultural support provisions to take effect later in the year.11Federal Register. Farmer Bridge Assistance (FBA) Program
Duty Drawback Refunds to Importers
Under a program known as duty drawback, importers can reclaim up to 99 percent of the duties they paid if the imported goods, or products made from them, are later exported or destroyed under customs supervision.12Office of the Law Revision Counsel. 19 U.S.C. 1313 – Drawback and Refunds The premise is that tariffs are meant to protect the domestic market, so if the goods leave the country the duty should follow.
Drawback applies in several situations:
- Manufactured exports: you import raw materials, use them to make a product in the United States, and export the finished product.
- Unused merchandise: you import goods, never use them domestically, and export or destroy them within three years of importation.
- Substitution: you import duty-paid materials and use equivalent domestic or other imported materials in manufacturing, then export the finished product.
Claims must be filed within five years of the original import date and submitted electronically. The refund is capped at 99 percent of the original duty; the government keeps the remaining 1 percent.12Office of the Law Revision Counsel. 19 U.S.C. 1313 – Drawback and Refunds For companies that both import and export heavily, drawback returns substantial sums to the business rather than leaving them in the Treasury.
Everything else — the tariff duties themselves, once collected and after any drawback — stays in the General Fund, subject to whatever Congress decides to do with it in a given year.