Idaho State Income Tax Data Sheet


© 2019

Tax Bracket (Single) [2] Tax Bracket (Couple) [3] Marginal Tax Rate
$0+ $0+ 1.60%
$1,454+ $2,908+ 3.60%
$2,908+ $5,816+ 4.10%
$4,362+ $8,724+ 5.10%
$5,816+ $11,632+ 6.10%
$7,270+ $14,540+ 7.10%
$10,905+ $21,810+ 7.40%

Like many other states, Idaho doubles income tax brackets for taxpayers who are filing jointly with a spouse. If you are late paying your Idaho income tax, you may be liable to pay interest of up to 4% per year.

Idaho State Income Tax Deductions

Income tax deductions are expenses that can be deducted from your gross pre-tax income before determining your taxable income.

Idaho Standard Deduction

The Idaho standard deduction is $6,200.00 for individuals and $12,400.00 for married couples filing jointly. The standard deduction may be chosen instead of filing an itemized deduction on your Idaho tax return.

Idaho Personal Exemptions

Idaho's personal income tax exemptions include a personal exemption of $3,900.00. You can deduct one single exemption from your gross income if you are responsible for supporting yourself financially.

Idaho Dependent Deduction

Idaho has a dependent exemption of $3,900.00. You may claim one dependent exemption for each of the children, relatives, or others who live with and are supported by you as described § 152 of the IRC (Internal Revenue Code).

Idaho Itemized Deductions

Idaho allows itemized deductions, and you can claim the same itemized deductions on your Idaho tax return as you do on your Federal tax return. You must choose between itemizing your deductions and choosing the Idaho standard deduction, so it's generally only worth itemizing your deductions if your itemized total is more then the Idaho and Federal standard deductions.

Idaho State Income Tax Data Sheet


© 2019

Web Resources:

State Tax Commission Website:

Idaho Tax Forms:

Idaho Income Tax Information:

Idaho Tax Refund Portal:

Important Tax Addresses:

Tax Return
Idaho State Tax Commission
PO Box 56
Boise, ID 83756-0056;

Idaho State Tax Commission
800 Park Blvd Plaza IV
Boise, ID 83712-7742;