Corporate income tax calculator, 2026
This works out one number from the Corporate Tax Rate figures published for 2026. Every amount it uses is below, with the document it was read from. What you enter is your own: this site has no way to check it, and the answer it produces is not a published figure.
Effective 2026-01-01Source: Publication 542 (Rev. January 2024), Corporations (IRS)Verified 2026-08-29
How it is worked out
The published percentage of the amount you enter, rounded to the nearest cent.
It uses Rate, 21%, the only one this year publishes.
Figures in this colour are computed from the amounts above. They are not published figures and no document states them.
Work it out
The live calculator needs JavaScript. The table below covers common amounts and is computed the same way.
Worked out for common amounts
| Taxable income | Result |
|---|---|
| 100,000 | $21,000 |
| 500,000 | $105,000 |
| 1,000,000 | $210,000 |
| 10,000,000 | $2,100,000 |
How each figure was verified
Each number below was read from a stored copy of the document named beside it, and checked to occur word for word in the quoted sentence. The digest is of that stored text.
Publication 542 (Rev. January 2024), Corporations (IRS)
- Rate
Corporations, including qualified personal service corpo- rations, figure their tax by multiplying taxable income by 21% (0.21).
Every 2026 Corporate Tax Rate figure · Corporate Tax Rate in every year · Every calculator on this site