C corporation excise tax filers, including insurance companies, pay the calculated tax or minimum tax, whichever is greater.
C corporation income tax filers pay calculated tax, but not minimum tax.
Minimum tax for tax years beginning on or after January 1, 2009:
| under $500,000 |
$150 |
$500,000 to $999,999
|
$500 |
| $1,000,000 to $1,999,999 |
$1,000 |
| $2,000,000 to 2,999,999 |
$1,500 |
$3,000,000 to $4,999,999
|
$2,000 |
$5,000,000 to $6,999,999
|
$4,000 |
| $7,000,000 to $9,999,999 |
$7,500 |
| $10,000,000 to $24,999,999 |
$15,000 |
| $25,000,000 to $49,999,999 |
$30,000 |
| $50,000,000 to $74,999,999 |
$50,000 |
| $75,000,000 to $99,999,999 |
$75,000 |
For tax years beginning prior to January 1, 2009, the minimum tax is $10.
Consolidated returns—the minimum tax is $10 multiplied by the total number of corporations doing business in Oregon and included in the consolidated return.
Calculated tax
For tax years beginning January 1, 2013 and later:
If Oregon taxable income is $1 million or less, multiply Oregon taxable income by 6.6 percent (not below zero).
If Oregon taxable income is more than $1 million, multiply the amount that is more than $1 million by 7.6 percent, and add $66,000.
For tax years beginning January 1, 2011 and before January 1, 2013:
If Oregon taxable income is $250,000 or less, multiply Oregon taxable income by 6.6 percent (not below zero).
If Oregon taxable income is more than $250,000, multiply the amount that is more than $250,000 by 7.6 percent, and add $16,500.
For tax years beginning January 1, 2009 and before January 1, 2011:
If Oregon taxable income is $250,000 or less, multiply Oregon taxable income by 6.6 percent (not below zero).
If Oregon taxable income is more than $250,000, multiply the amount that is more than $250,000 by 7.9 percent, and add $16,500.
For tax years beginning prior to January 1, 2009:
Multiply Oregon taxable income by 6.6 percent.