IDAPA 35.01.01.620 — ATTRIBUTING INCOME OF CORPORATIONS THAT ARE MEMBERS OF PARTNERSHIPS

(RULE 620).
Section 63-3027, Idaho Code
01.
In General. If a corporation required to file an Idaho income tax return is a member of an operating
partnership, the corporation is to report its Idaho taxable income, including its share of income from the partnership,
in accordance with this rule. For purposes of this rule, the term partnership includes a joint venture.
(4-6-23)
02.
Transacting Business. A corporation is transacting business in Idaho if it is a partner in a
partnership that is transacting business in Idaho even though the corporation has no other contact with Idaho. In this
case, both the partnership and the corporation have an Idaho filing requirement.
(4-6-23)
03.
Multistate Partnerships. If a partnership operates in more than one state, its income is to be
apportioned and allocated on the partnership return as if the partnership were a corporation. The allocation and
apportionment rules of Section 63-3027, Idaho Code, and related rules apply to the partnership.
(4-6-23)
04.
Partnership Income as Apportionable Income of the Partner.
(4-6-23)
a.
Income. If the income or loss of a partnership is apportionable income or loss to a corporate partner,
its share of this net apportionable income or loss is to be apportioned together with all other net apportionable income
or loss of the corporation. Apportionable income or loss is defined by Section 63-3027(1)(a), Idaho Code, and Rules
330 through 336 of these rules.
(4-6-23)
b.
Factors. A corporate partner's share of the partnership property, payroll, and sales after
intercompany eliminations, is to be included in the numerators and the denominators of the partner's property,
payroll, and sales factors when computing its apportionment formula. The partner's share of the partnership's
property, payroll, and sales is determined by attributing the partnership's property, payroll, and sales to the partner in
the same proportion as its distributive share of partnership income if reporting net income for the taxable year or in
the same proportion as its distributive share of partnership losses if reporting a net loss for the taxable year. Generally,
the partnership's property, payroll, and sales includable in the corporation's factor computations is determined in
accordance with Section 63-3027, Idaho Code, and related rules. To determine how the sales attribution rules of
Sections 63-3027(12) and (13), Idaho Code, apply to the sales factor of the corporate partner, the sales of the
IDAHO ADMINISTRATIVE CODE
IDAPA 35.01.01
Idaho State Tax Commission
Income Tax Administrative Rules
Section 640
Page 93
partnership are treated as if they were sales of the corporation.
(4-6-23)
05.
Partnership Income as Nonapportionable Income of Partner.
(4-6-23)
a.
Income. If the partnership income or loss is not apportionable income to a corporate partner, the
income is nonapportionable income as defined in Section 63-3027(1)(h), Idaho Code, and Rules 335 through 339 of
these rules. The corporate partner is to allocate the nonapportionable income to the state in which it was earned. The
corporate partner, on its Idaho corporation income tax return, is to specifically allocate to Idaho its share of the
nonapportionable income attributable to Idaho.
(4-6-23)
b.
Factors. If the partnership income or loss is nonapportionable income to the corporate partner, none
of the partnership property, payroll, or sales may be included in the computation of the factors of the corporation.
(4-6-23)