United States Corporate Tax Calculator 2026

CIT 21% federal flat rate, CAMT 15% for large corporations with over $1B average annual income.

CIT 21% federal flat rate, CAMT 15% for large corporations ($1B+ avg adjusted financial statement income).

2026 Rates: Federal CIT 21% flat; CAMT 15% for large corps; state taxes 0-11.5% additional.

CIT 21% federal flat rate, CAMT 15% for large corporations ($1B+), effective blended rate ~21-27%.

Annual Profit ($)Large Corporation ($1B+ avg income)

Annual Profit$500,000

Federal CIT (21%)$105,000

After-Tax Profit$395,000

Effective Rate21.0%

Net pay after federal tax and FICA.

Federal PIT 10-37% brackets.

State/local sales tax rates.