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                            Form 402
                            Individual Apportionment for Multistate Businesses

         For the calendar year                     or fiscal year beginning                                                                  , ending
Names as shown on return                                                                                 Social Security number or EIN

    Check if using three-factor apportionment                                             Total                                                      Idaho
                                                                                     Beginning of End of                                     Beginning of           End of 
Property (At original cost)                                                          Year         Year                                       Year                   Year
1.  Inventories ...................................................................
2.  Buildings ......................................................................
3.  Machinery and equipment ...........................................
4.  Furniture and fixtures ..................................................
5.  Delivery equipment .....................................................
6.  Land ............................................................................
7.  Other assets (describe) ...............................................
8.  Less: Construction in progress ....................................
9.  Owned property. Add lines 1 through 7 less line 8 ......
10.  Average owned property. See instructions .............................................
11.  Rented property (capitalize @ 8 times the rents) ...................................
12.  Total owned and rented property. Add lines 10 and 11 ...........................
13.  Idaho owned and rented property. Add lines 10 and 11 ................................................................................
14.  Idaho property percentage. Compute the percentage to four decimal places ..............................................                                               %
Sales (Gross receipts)                                                                                                                       Total                  Idaho
15.  Gross sales, less returns and allowances ..........................................................................
16. Sales delivered or shipped to Idaho purchasers:
    a.  Shipped from outside Idaho ..................................................................................................
    b.  Shipped from within Idaho ....................................................................................................
17.  Sales shipped from Idaho to:
    a.  The United States government ...................................................................................
    b.  Purchasers in a state where the taxpayer was not subject to a net income tax 
        or a tax based upon or measured by net income ........................................................
18.  Sales of services ................................................................................................................
19.  Dividends ...........................................................................................................................
20. Interest income subject to apportionment ..........................................................................
21.  Gross rents received ..........................................................................................................
22.  Gross royalties ...................................................................................................................
23.  Gross sales from Form 4797 and/or Schedule D ..............................................................
24.   Other Income .....................................................................................................................
25.  Total gross receipts. Add lines 15 and 18 through 24 ........................................................
26.  Idaho gross receipts. Add lines 16 through 24 ..............................................................................................
27.  Idaho sales percentage. Compute percentage to four decimal places .........................................................                                           %
28.  Reserved ......................................................................................................................................................
Payroll (Wages, salaries, other employee compensation)                                                                                       Total                  Idaho
29. Compensation of officers ....................................................................................................
30.  Salaries and wages ............................................................................................................
31.  Labor included in cost of goods sold ..................................................................................
32.  Other ..................................................................................................................................
33.  Total wages and salaries. Add lines 29 through 32 ............................................................
34.  Idaho wages and salaries. Add lines 29 through 32 .....................................................................................
35.  Idaho payroll percentage. Compute percentage to four decimal places ......................................................                                            %
36.  Total percent. See instructions ....................................................................................................................                  %
37.  Idaho apportionment factor. Average percentage. See instructions .............................................................                                        %
EFO00170 12-30-2022



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                     Form 402 — Instructions
                     Individual Apportionment for Multistate Businesses

General Instructions                                    completed at the end of the tax year. For example, if 
If you’re a nonresident transacting business in         the project was 30% complete at the end of the tax 
Idaho and another state or country, your entire         year, 30% of the bid price should be included in the 
business income is subject to Idaho apportionment.      gross receipts. Gross receipts from a construction 
The elements of the apportionment formula are the       project are attributable to Idaho if the construction is 
property, sales, and payroll factors of your trade      located in Idaho. Gross receipts from a construction 
or business. Factor information is available at         project located partially in Idaho are included in the 
tax.idaho.gov.                                          numerator based on ratio of construction costs for 
                                                        the project in Idaho for the tax year to the total of 
Modified Factors for Certain Industries                 construction costs for that project for the tax year.
Idaho has adopted the Multistate Tax Commission 
                                                        Compensation paid for work on a particular 
(MTC) regulations for the following special 
                                                        construction project is included in the payroll factor 
industries. Examples of the computations of these 
                                                        even though capitalized into the cost of construction. 
factors are found in the applicable MTC regulations. 
                                                        Compensation is attributable to the state where most 
You can find them under Laws and Rules at 
                                                        of the employee’s service is performed, regardless of 
tax.idaho.gov.
                                                        where reported for unemployment tax purposes.
Carriers of Freight and Passengers
If you’re in the business of transporting passengers,   Specific Instructions
freight or mail by motor carrier, your apportionment    Instructions are for lines not fully explained on the 
factor should reflect the movement of your              form. 
transportation equipment and personnel. This            Single sales factor is the default apportionment 
is done by including the transportation revenue,        method. Electrical, telephone and communications 
property and payroll in the Idaho numerators based      corporations (as defined in Idaho Code) and MTC 
on the percentage of miles traveled in Idaho to miles   special industries (construction contractors, airlines, 
traveled everywhere.                                    railroads, trucking companies, television and radio 
Other revenue, fixed property, and compensation of      broadcasting, publishing, and financial institutions) 
employees assigned to fixed locations are included in   can elect to use a three-factor method. If you’re using 
the factors based on the general apportionment rules.   three-factor apportionment, check this box and provide 
                                                        a list of the companies using the three-factor method.
Contractors
You must use the same long-term contract                All taxpayers must complete all three sections (property, 
accounting method for Idaho reporting purposes that     payroll and sales). Only three-factor taxpayers will use all 
you used for federal reporting purposes.                three factors to compute their apportionment factor.
If the percentage of completion method is used,         Property
the following special rules apply in addition to the    Line 8.  Enter the cost of property or equipment under 
general property, payroll, and sales factor rules.      construction if included in the totals on the lines above. 
                                                        Don’t include inventoriable goods in process.
The property factor denominator includes the 
average value of the taxpayer’s cost of construction    Line 10.  To compute total average owned property, 
in progress (including materials and labor) to the      add beginning and end of the year amounts from the 
extent the costs exceed progress billings. The          total columns on line 9, and divide by two. To compute 
portion of this amount attributable to construction     Idaho average owned property, add beginning and end 
projects in Idaho is included in the Idaho numerator.   of the year amounts from the Idaho columns on line 9, 
Don’t include any value in the property factors for     and divide by two.
your equity in the projects if progress billings exceed 
construction costs.                                     Line 11.  Multiply your total and Idaho net annual rents 
                                                        by eight, and enter here.
The sales factor includes only the portion of the 
gross contract price which corresponds to the 
percentage of the entire contract which was 

EIN00071 11-03-2022                                                                                  Page 1 of 2



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                                                                   Form 402 — Instructions     (continued)         

Line 14.  Divide Idaho owned and rented property,       Total Percentage
line 13, by total owned and rented property, line 12.   Line 36.  For taxpayers using the three-factor 
Compute the percentage to four decimal places.          apportionment method, add the percentages on 
                                                        lines 14, 27, and 35.
Sales
Lines 16a and b.  Enter the amounts from line 15        Idaho Apportionment Factor
that were delivered or shipped to Idaho purchasers.     Line 37.
                                                        •  For taxpayers using the three-factor 
Lines 17a and b.  Enter the amounts from line 15 
                                                           apportionment method, divide the total on line 
that were throwback sales to Idaho. A sale made in 
                                                           36 by three. If any of the factors don’t apply to 
a state that has no jurisdiction to tax the seller is a 
                                                           your business, divide the total on line 36 by the 
throwback sale.
                                                           number of factors used. For example, if your 
Line 27.  Divide Idaho gross receipts, line 26,            business has no employees anywhere, your 
by total gross receipts, line 25. Compute the              factor is reduced by one. 
percentage to four decimal places.                      •  For all other taxpayers, use the percentage on 
                                                           line 27.
Payroll
Line 35.  Divide Idaho wages and salaries, line 34,     Multiply the apportionment factor by the net 
by total wages and salaries, line 33. Compute the       income/loss of multistate activities reported on your 
percentage to four decimal places.                      Schedule C, E and F. Enter the resulting amount on 
                                                        the applicable lines of Idaho Form 43.

                                                Contact us:
                    In the Boise area: (208) 334-7660 | Toll free: (800) 972-7660
                                   Hearing impaired (TDD) (800) 377-3529
                                   tax.idaho.gov/contact
EIN00071 11-03-2022                                                                                  Page 2 of 2






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