Idaho State Tax Commission

Idaho State Tax Commission

Conformity to Federal Internal Revenue Code

Once Idaho conforms to the IRC, it follows the federal effective date of any federal changes adopted, including any retroactive dates.

2012

On Feb. 4, 2013, Gov. Otter signed House Bill 1, which makes Idaho law conform to the IRC. The bill provides that, for Idaho income tax purposes, the IRC means the Internal Revenue Code of 1986 as amended and in effect on the first day of January, 2013. Because Gov. Otter signed HB 1 after the passage of the American Taxpayer Relief Act of 2012 (the so-called “fiscal cliff” legislation), Idaho conforms to those provisions as well. The conformity bill also allows refund claims arising from the FAA Modernization and Reform Act that are filed on or before the statute of limitations date or April 15, 2013, whichever is later. However, Idaho still does not conform to the federal bonus depreciation. Bonus depreciation is a modification made in the Idaho Code by section 63-3022O.

2011

Idaho law conforms to the IRC as of Jan. 1, 2012. Idaho doesn’t conform to bonus depreciation for assets acquired after 2009. See House Bill 355 signed by the Governor on Feb. 6, 2012.

2010

Idaho law conforms to the IRC as of Jan. 1, 2011. This includes provisions in federal acts passed after Feb. 17, 2009 and in 2010. Idaho didn't adopt, however, the changes to IRC section 168(k), which extended and increased amounts allowed for bonus depreciation for property acquired and placed in service after 2009. These changes were included in the "Small Business Jobs Act of 2010," and the "Tax Relief, Unemployment Insurance Reauthorization and Job Creation Act of 2010." If you claim bonus depreciation on your federal return for assets placed in service after 2009, you must report an adjustment on the Idaho return. (Details provided below.)

Idaho conforms to the IRC section 179 expense provisions. You can claim the IRC section 179 expense on your Idaho return to the extent you claim this deduction on your federal income tax return. See 2011 House Bill 102.

Bonus depreciation provisions in the federal acts not adopted by Idaho include:

  • The extension of the additional first-year depreciation deduction for assets acquired and placed in service during 2010 (or placed in service during 2011 for certain long-lived property and transportation property).
  • The extension and expansion of the additional first-year depreciation to 100% of the cost of qualified property placed in service after September 8, 2010 and before January 1, 2012 (before January 1, 2013 for certain longer-lived and transportation property), and the 50% first-year additional depreciation deduction for qualified property placed in service after December 31, 2011 and before January 1, 2013 (after December 31, 2012 and before January 1, 2014 for certain longer-lived and transportation property).

To report the difference between Idaho and federal law for bonus depreciation on 2010 returns:

  • Complete a separate federal Form 4562 or your own schedule to compute Idaho depreciation as if you hadn't claimed the special depreciation allowance.
  • Use the Idaho depreciation amounts to compute the Idaho adjusted basis and any gains or losses from the sale or exchange of the property.
  • Enter the differences between the Idaho and federal depreciation amounts, and gains and losses from sales or exchanges of the property, on the other addition line.

The other addition line on the 2010 Idaho forms can be found as follows:

CorporationsForm 41line 17
S CorporationsForm 41Sline 22
PartnershipsForm 65line 20
FiduciariesForm 66 Schedule B, line 5
Resident IndividualsForm 39RSchedule A, line 5
Nonresident and Part-year residentsFrom 39NRSchedule A, line 3

2009

Idaho law conforms to the IRC as of Feb. 17, 2009, including provisions passed during 2008 in the "Emergency Economic Stabilization Act of 2008," the "Housing and Economic Recovery Act of 2008," and the "Heroes Earning Assistance and Relief Tax Act." Idaho law also incorporates the provisions of the "American Recovery and Reinvestment Tax Act of 2009," signed into law by the President on Feb. 17, 2009. See House Bill 281 signed by the Governor on April 23, 2009.

2008

Idaho law conforms to the IRC as of Feb. 14, 2008, including the provisions in the "Economic Stimulus Act of 2008." See House Bill 615 signed by the Governor on March 31, 2008.

2007

Idaho law conforms to the IRC as of Jan. 1, 2008. See House Bill 342 signed by the Governor on Feb. 8, 2008.

2006

Idaho law conforms to the IRC as of Jan. 1, 2007.  See House Bill 16 signed by the Governor on Feb. 14, 2007.

2005

New Federal Law — Additional Tax Exemptions for Housing Victims of Hurricane Katrina

The Katrina Emergency Tax Relief Act of 2005, signed by the President on Sept. 23, 2005, provides various tax benefits, including exemptions for housing Hurricane Katrina displaced individuals.

The Idaho Legislature has not adopted the provisions of the Katrina Emergency Tax Relief Act of 2005. Generally, Idaho adopts the provisions of the Internal Revenue Code as of Jan.1 each year. The 2006 Legislature will consider conformity with the Internal Revenue Code.

2004

Idaho law conforms to the Internal Revenue Code (IRC) as of Jan. 1, 2005, with some exceptions noted below. Once Idaho conforms to the IRC, it follows the federal effective date of any federal changes adopted.

New Federal Law — General Sales Tax Deduction — The American Jobs Creation Act of 2004, signed by the President on Oct. 22, 2004, allows taxpayers to deduct state and local sales taxes instead of state and local income taxes as itemized deductions on the 2004 Federal Form 1040, Schedule A.

Idaho did not adopt this change to federal law. House Bill 10 requires sales tax claimed as an itemized deduction to be treated the same as income tax. The law requires the sales tax deducted to be added back to Idaho income. Taxpayers should add back the sales tax claimed as an itemized deduction on line 16 of Form 40 or line 37 of Form 43.

2003

Changes to the IRC during 2003 included those made by the Jobs and Growth Tax Relief Reconciliation Act of 2003 (Public Law 108-27) and the Military Tax Relief Act of 2003 (Public Law 108-121).

Changes adopted by Idaho as a result of the Jobs and Growth Tax Relief Reconciliation Act of 2003 include the following modifications to IRC Section 179:

  • Increasing the amount that can be expensed to $100,000 for property placed in service in taxable years beginning in 2003, 2004, and 2005;
  • Annual indexing for inflation of dollar limitations; and
  • Allowing off-the-shelf-computer software as an asset qualified for the expensing.

Changes not adopted by Idaho in the Jobs and Growth Tax Relief Reconciliation Act of 2003 include:

  • Increasing the additional first-year depreciation from 30% to 50% and extending it through Dec. 31, 2004. Idaho does not allow either the 30% or the 50% bonus depreciation.

The Military Tax Relief Act of 2003 provided various tax breaks for U.S. military personnel. These changes were adopted by Idaho and include:

  • Expanding the ownership and use time period for an exclusion of gain from the sale of a principal residence by members of the uniformed services or the U.S. Foreign Service, effective for sales after May 6, 1997;
  • Increasing the exclusion of death gratuity payments (which would double to $12,000) from gross income with respect to deceased members of the military, effective for deaths after Sept. 10, 2001;
  • Allowing an above-the-line income tax deduction for the overnight travel expenses of National Guard and Reserve members, effective for tax years starting after Dec. 31, 2002; and
  • Extending the Terrorism Tax Relief Act of 2001 to the families of astronauts who die while on a mission.

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Last updated Feb. 12, 2013