United States corporate tax rate
Flat federal statutory corporate income tax rate on taxable income of C corporations.
| Current value | 21 percent |
|---|---|
| In force from | 2018-01-01 |
| Official source | Internal Revenue Code section 11(b), 26 U.S.C. 11(b), as amended by section 13001 of the Tax Cuts and Jobs Act (Pub. L. 115-97, 131 Stat. 2054) - U.S. Code text published by the U.S. Government Publishing Office |
| Last verified | 2026-07-20 |
| Verification | primary — No verification limitation recorded — read from the official source cited. |
| Provenance | source fingerprint |
What this value means
26 U.S.C. 11(b) reads in full: 'The amount of the tax imposed by subsection (a) shall be 21 percent of taxable income.' This is a flat, permanent rate with no graduated brackets and no sunset, applicable to taxable years beginning after 31 December 2017; the pre-TCJA graduated schedule topping out at 35 percent is repealed. The 21 percent figure was NOT changed by the 2025 reconciliation act (Pub. L. 119-21), which altered depreciation, interest-limitation and international provisions but left the headline rate untouched, and the IRS Instructions for Form 1120 continue to direct corporations to multiply taxable income by 0.21. FEDERAL FIGURE ONLY - the effective burden is higher. State (and in some cases municipal) corporate income, franchise or gross-receipts taxes stack on top and range from zero (Ohio, Nevada, Texas, Washington and Wyoming levy no conventional corporate income tax, though several impose gross-receipts taxes instead) to roughly 9-12 percent at the top in states such as New Jersey, Pennsylvania, Minnesota and Illinois; because state tax is deductible federally, the combined statutory rate is commonly cited in the 25-26 percent region. Do not blend that into this value. Other federal layers not reflected here: the 15 percent corporate alternative minimum tax on adjusted financial statement income of corporations averaging over $1 billion in book income (26 U.S.C. 55, added in 2022), the 1 percent excise tax on stock repurchases (26 U.S.C. 4501), the base erosion and anti-abuse tax, and the separate regimes for S corporations and other passthroughs, whose income is taxed to owners under the individual schedule rather than at 21 percent. ACCESS QUIRK: uscode.house.gov refused connections (ECONNREFUSED) from this environment; govinfo.gov, the GPO's authoritative publication of the Code, served the section cleanly - the cited copy is the 2023 edition, and no subsequent public law amended section 11(b).
Get it programmatically
curl https://usaref.dev/v1/us/corporate-tax
# $0.001 per call — x402 on Base (USDC). No key, no signup.
# History: curl https://usaref.dev/v1/us/corporate-tax/history?from=2020-01-01
# Provenance: curl https://usaref.dev/provenance/us/corporate-taxOther United States series: policy interest rate · VAT rate · minimum wage · public holidays · inflation rate (CPI) · income tax rates