Federal receipts rose $143 billion through nine months of fiscal 2026 — but $136 billion of it was individuals alone, as a $55 billion jump in customs duties and a $34 billion rise in payroll taxes were nearly cancelled by an $87 billion drop in corporate income tax

The U.S. Treasury publishes the Monthly Treasury Statement (MTS), which reports federal receipts by source on a fiscal-year-to-date basis and against the same point a year earlier. Its most recent issue covers October 2025 through June 2026 — the first nine months of fiscal 2026. We pulled Table 4 ("Receipts of the U.S. Government") from the free Treasury Fiscal Data API this run (record_date 2026-06-30, retrieved 2026-08-10) and reconciled every source line to the published total. Total receipts through June 2026 were $4,151.4 billion, up $143.3 billion — 3.6% — from $4,008.1 billion in the same nine months of fiscal 2025. Beneath that single figure, the seven source lines did not move together. Individual income taxes rose $136.3 billion (+6.6%, to $2,195.7 billion). Social insurance and retirement receipts — the payroll taxes for Social Security and Medicare — rose $34.4 billion (+2.5%, to $1,383.7 billion). Customs duties rose $55.0 billion (+50.9%, to $163.0 billion). Estate and gift taxes rose $7.8 billion (+35.0%, to $30.2 billion). Moving the other way: corporation income taxes fell $86.9 billion (−23.7%, to $279.3 billion); miscellaneous receipts fell $3.0 billion (−10.9%, to $24.5 billion); and excise taxes fell $0.4 billion (−0.5%, to $75.0 billion). The seven line changes sum to the $143.3 billion total, to the rounding. Two facts about the arithmetic. First, of the $143.3 billion increase, $136.3 billion — 95% — came from individual income taxes alone; the other six sources together added $6.9 billion net, because customs's +$55.0 billion and payroll's +$34.4 billion were nearly offset by corporate's −$86.9 billion. Second, the single largest proportional move of the seven lines was customs duties, up 50.9%, and the largest one running the other way was corporation income tax, down 23.7% — the two biggest opposing swings fell on the very lines that offset each other in the topline. Estate and gift taxes actually rose more in proportion than corporate fell (+35.0%), but on a $30.2 billion base too small to move the total. The convergence of those two lines is not a one-year event. We pulled the same June-year-to-date figures back to fiscal 2022. Corporation income tax receipts (nine-month, $ billions): 306.1 (FY2022), 305.9 (FY2023), 392.7 (FY2024), 366.3 (FY2025), 279.3 (FY2026) — a five-year low. Customs duties over the same cutoffs: 74.2, 60.4, 55.6, 108.0, 163.0 — a five-year high, and up 193% from the FY2024 trough of $55.6 billion. Measured as a share of all receipts, corporate income tax fell from 10.46% (FY2024) to 6.73% (FY2026) while customs rose from 1.48% to 3.93%. The ratio of the two: corporate receipts were 7.06× customs in the nine months to June 2024, 3.39× to June 2025, and 1.71× to June 2026. Put the other way, customs duties equalled 58 cents of every corporate income-tax dollar through June 2026, against 30 cents a year earlier and 14 cents two years earlier.

The following is analysis, not fact. A national receipts total is a sum of seven independent revenue streams, and a sum can grow at a modest, unremarkable rate while its components pull hard against one another. That is what the nine-month record shows. Receipts rose 3.6%; the individual income tax carried essentially all of it; and the remaining six lines net to a rounding error only because a $55 billion surge in customs duties and a $34 billion rise in payroll taxes were almost exactly cancelled by an $87 billion contraction in corporate income tax. The headline is the point at which those opposing movements happen to sum to growth. The reshuffle is visible only across the full ledger and across years. Read a single line and it looks like noise; read all seven across five fiscal years and two of them are trading places. Customs duties — for most of the past decade the smallest major revenue line, under 2% of receipts — have doubled and doubled again as a share, from 1.48% in FY2024 to 3.93% now. Corporate income tax has gone the other way, from a 10.46% share and a $392.7 billion nine-month peak in FY2024 to a 6.73% share and $279.3 billion now. The MTS records the amounts collected; it does not attribute a cause to either move, and this piece asserts none. What the record does establish is timing: the customs increase coincides with the tariff-rate schedule in effect during fiscal 2026, and the corporate decline is measured against the same June cutoff each year, which holds the seasonal pattern of estimated-payment due dates constant. The individual-income-tax dominance is the quieter structural point. It supplied 52.9% of all receipts through June and 95% of the year-over-year increase; combined with payroll taxes, receipts drawn from wages and salaries are 86% of the total. A revenue base that leans this heavily on individuals is one in which a $87 billion swing in the corporate line — the most volatile of the seven — can be absorbed almost invisibly in the topline, which is precisely what happened.

The strongest cautions are about the corporate line, and they cut at the sharpest number here. Corporation income tax is the most timing-sensitive of the seven sources: it arrives in lumpy estimated payments (the large installments fall in April, June, September and December), and the MTS figure is net of refunds, so a heavier refund season or a shifted payment can move the nine-month total without any change in underlying liability. A single year-to-date cut is not a full-year result — fiscal 2026 still has its September estimated-payment quarter to run — and it does not, on its own, establish a trend. The robust claims are the large ones (corporate down 23.7%, customs up 50.9%, the 7.06×→1.71× convergence), not the precise ranking of the smaller lines. Second, these are nominal dollars. Total receipts up 3.6% is a smaller real increase after inflation, and a share that "rises" can reflect a growing denominator as much as its own growth — though here the corporate and customs dollars moved in absolute terms too, not only as shares. Third, on customs specifically: the duty figure is the amount collected at the border on imported goods, and it is shaped by import volumes, product mix, valuation and refund timing as well as by rates. Reading a 50.9% rise as evidence of any single policy overstates what the receipts line alone can prove; the record shows the collection, not the mechanism. Fourth, "lowest in five years" and "highest in five years" describe the FY2022–FY2026 window we pulled, not all of history; the nine-month-cutoff comparison is consistent but bounded by that window.

From the vantage of the topline — the number that leads the monthly write-up — fiscal 2026 is a story of steady growth: receipts up 3.6% through June, a ninth straight month above the prior year. That reading is accurate and complete on its own terms. It is also, line by line, the wrong description of what happened underneath, because a topline is built to average its components away. The same nine months in which receipts grew $143 billion are the nine months in which the corporate income tax lost nearly a quarter of its take and customs duties gained half again on theirs — two of the four largest revenue lines moving in opposite directions by tens of billions, invisible in the single figure that grew because one of them, the individual income tax, was large enough to cover the gap.

A desk reports the topline on release day — receipts up 3.6% through June, a ninth month of growth — and moves on. The number is right, and it describes a revenue base that is quietly being rewritten beneath it. Read all seven source lines at once, across five fiscal years, and the year's real event is not the 3.6% but that two of the four largest lines are trading places: corporation income tax down to a five-year low of $279.3 billion, customs duties up to a five-year high of $163.0 billion, the gap between them closing from 7.1× to 1.7× in twenty-four months. And the growth itself is narrower than it looks — 95% of the $143 billion increase is individual income taxes alone; strip that one line out and the other six sources added $6.9 billion between them, because a $55 billion customs surge and a $34 billion payroll rise were spent almost entirely covering an $87 billion corporate shortfall. The topline grew. The composition churned. Only pulling every line and differencing it across years shows that the steadiness is assembled, not real.