About how much in gross taxes did the IRS collect in fiscal year 2025?
Answer$5.3 trillion
That total is before refunds; the IRS also sent back $638.8 billion in refunds that year.
Source: IRS, SOI Tax Stats – IRS Data Book, FY2025 (2025) irs.gov
Money · Facts & sources
Tax facts & stats
6 sourced facts about taxes, each with the context behind the number. 4 more are in today's round and appear here after it closes.
The basics
What share of individual federal tax returns were filed electronically in fiscal 2025?
Answer93.7%
Only about 10.3 million of the 162.8 million individual returns were still filed on paper.
Source: IRS Data Book, FY2025 (Publication 55B) (2025) irs.gov
Which state's taxpayers paid the most total federal tax (before refunds) in fiscal 2025?
AnswerCalifornia
California led, followed by Texas and New York, largely reflecting population and income.
Source: IRS Data Book, FY2025 (Publication 55B) (2025) irs.gov
Going deeper
On average, what share of GDP did OECD countries collect in taxes in 2024?
Answer34.1%
That was the highest average ever recorded for the 38 OECD countries, up from 24.9% in 1965.
Source: OECD, Revenue Statistics 2025 (2024) oecd.org
Expert level
Which OECD country collected the least tax relative to GDP in 2024?
AnswerMexico (18.3%)
Mexico's ratio was less than half of top-ranked Denmark's 45.2%.
Source: OECD, Revenue Statistics 2025 (2024) oecd.org
About how many tax return audits did the IRS close in fiscal 2025?
Answer497,621
Those audits resulted in $26.8 billion in recommended additional tax — out of hundreds of millions of returns filed.
Source: IRS, SOI Tax Stats – IRS Data Book, FY2025 (2025) irs.gov
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