The below content should be reviewed in conjunction with the in-depth federal coverage of this topic provided above.
- Idaho employers are required to withhold income taxes from all compensation paid for work performed in Idaho by Idaho residents, and by nonresidents whose wages exceed $1,000. See Withholding on Residents, Nonresidents and Expatriates.
- Idaho employers determine withholding using federal Form W-4, Employee's Withholding Allowance Certificate. See Employee's Withholding Allowance Certificate.
- Employers may withhold on supplemental wage payments, such as bonuses, as if the payments were a regular wage payment, or they may withhold a flat percentage. See Supplemental Wages.
- Employers must issue a federal Form W-2 to each employee from whom any amount of Idaho income tax was withheld, or would have been withheld under the approved tables and other methods if the employee had claimed no more than one withholding allowance. See Form W-2 Requirements.
- Employers are required to keep records of wages paid and taxes withheld. See Recordkeeping Requirements.