Idaho Administrative Code
Title IDAPA 35 - Tax Commission, State
Rule 35.01.01 - INCOME TAX ADMINISTRATIVE RULES
Section 35.01.01.270 - IDAHO SOURCE INCOME OF NONRESIDENT AND PART-YEAR RESIDENT INDIVIDUALS -IDAHO COMPENSATION - IN GENERAL

Universal Citation: ID Admin Code 35.01.01.270

Current through August 31, 2023

Section 63-3026A(3), Idaho Code

01. In General. If a nonresident individual performs personal services, either as an employee, agent, independent contractor, partner, or otherwise, both within and without Idaho, the portion of his total compensation that constitutes Idaho source income is determined by multiplying that total compensation by the Idaho compensation percentage. (4-6-23)

02. Definitions. (4-6-23)

a. The Idaho compensation percentage is the percentage computed by dividing Idaho workdays by total workdays. (4-6-23)

b. The term Idaho workdays means the total number of days the taxpayer provided personal services in Idaho for a particular employer or principal during the calendar year. If personal services were provided both within and without Idaho on the same day, that day is an Idaho workday unless the taxpayer establishes that less than fifty percent (50%) of the services were performed within Idaho that day. If an employee works in Idaho part of the day on a regular full-time basis, working hours must be used to determine the amount of Idaho compensation. (4-6-23)

c. Total workdays means the total number of days the taxpayer provided personal services for that employer or principal both within and without Idaho during the calendar year. For example, a taxpayer working a five (5) day work week may assume total workdays of two hundred sixty (260) less any vacation, holidays, sick leave days and other days off. (4-6-23)

d. Total compensation means all salary, wages, commissions, contract payments, and other compensation for services, including sick leave pay, holiday pay and vacation pay, that is taxable pursuant to the Internal Revenue Code. (4-6-23)

03. WorkDays. Workdays include only those days the taxpayer actually performs personal services for the benefit of the employer or principal. Vacation days, sick leave days, holidays, and other days off from work are considered non-workdays whether compensated or not. Total workdays must equal Idaho workdays plus non-Idaho workdays. The taxpayer has the burden of establishing non-Idaho workdays. Documentation establishing non-Idaho workdays may be required to support the Idaho compensation percentage used by the taxpayer. (4-6-23)

04. Multiple Employers. If a taxpayer performs personal services both within and without Idaho for more than one (1) employer or principal, he must determine an Idaho compensation percentage separately for each employer or principal. (4-6-23)

05. Alternative Method. If the Idaho compensation percentage does not fairly represent the extent of the taxpayer's personal service activities in Idaho, the taxpayer may propose or the Tax Commission may require an alternative method. For example, working hours may be a more appropriate measure than workdays in some cases. (4-6-23)

a. The taxpayer must fully explain the alternative method in a statement attached to his Idaho individual income tax return. (4-6-23)

b. The alternative method may be used in lieu of the method in Subsection 270.01 unless the Tax Commission expressly denies its use. (4-6-23)

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