SECTION 5. HIGH-LOW
Internal Revenue Bulletin 2011-42 · 2026-10-03 edition · updated 2026-10-04 · United States
SUBSTANTIATION METHOD
- Annual high-low rates . For purposes of the high-low substantiation method, the
per diem rates in lieu of the rates described in section 4.01 of Rev. Proc. 2011–47 (the per diem substantiation method) are $242 for travel to any high-cost locality and $163 for travel to any other locality within CONUS. The amount of the $242 high rate and $163 low rate that is treated as paid for meals for purposes of § 274(n) is $65 for travel to any high-cost locality and $52 for travel to any other locality within CONUS. See section 5.02 of Rev. Proc. 2011–47. The per diem rates in lieu of the rates described in section 4.02 of Rev. Proc. 2011–47 (the meal and incidental expenses only substantiation method) are $65 for travel to any high-cost locality and $52 for travel to any other locality within CONUS.
- High-cost localities . The following localities have a federal per diem rate of $202 or more, and are high-cost localities for all of the calendar year or the portion of the calendar year specified in parentheses under the key city name.
Key City County or other defined location
Arizona
Sedona City limits of Sedona (March 1-April 30)
California
Monterey Monterey Napa Napa (October 1-November 30 and April 1-September 30) San Diego San Diego San Francisco San Francisco Santa Barbara Santa Barbara Santa Monica City limits of Santa Monica Yosemite National Park Mariposa (June 1-August 31)
Colorado
Aspen Pitkin (December 1-March 31 and June 1-August 31) Denver/Aurora Denver, Adams, Arapahoe, and Jefferson Steamboat Springs Routt (December 1-March 31) Telluride San Miguel (December 1-March 31)
2011–42 I.R.B. 513 October 17, 2011
Key City County or other defined location
Vail Eagle (December 1-August 31)
District of Columbia
Washington D.C. (also the cities of Alexandria, Falls Church, and Fairfax, and the counties of Arlington and Fairfax, in Virginia; and the counties of Montgomery and Prince George’s in Maryland) (See also Maryland and Virginia)
Florida
Fort Lauderdale Broward (January 1-May 31) Fort Walton Beach/De Funiak Springs Okaloosa and Walton (June 1-July 31) Key West Monroe Miami Miami-Dade (December 1-March 31) Naples Collier (January 1-April 30)
Illinois
Chicago Cook and Lake (October 1-November 30 and April 1-September 30)
Louisiana
New Orleans Orleans, St. Bernard, Jefferson and (October 1-June 30) Plaquemine Parishes
Maine
Bar Harbor Hancock (July 1-August 31)
Maryland
Baltimore City Baltimore City (October 1-November 30 and March 1-September 30) Cambridge/St. Michaels Dorchester and Talbot (June 1-August 31) Ocean City Worcester (June 1-August 31) Washington, DC Metro Area Montgomery and Prince George’s
Massachusetts
Boston/Cambridge Suffolk, City of Cambridge Falmouth City limits of Falmouth (July 1-August 31) Martha’s Vineyard Dukes (July 1-August 31) Nantucket Nantucket (June 1-September 30)
New Hampshire
Conway Carroll (July 1-August 31)
October 17, 2011 514 2011–42 I.R.B.
Key City County or other defined location
New York
Floral Park/Garden City/Great Neck Nassau Glens Falls Warren (July 1-August 31) Lake Placid Essex (July 1-August 31) Manhattan (includes the boroughs of Manhattan, Brooklyn, the Bronx, Queens Bronx, Kings, New York, Queens, and Staten Island) Richmond
Saratoga Springs/Schenectady Saratoga and Schenectady (July 1-August 31) Tarrytown/White Plains/New Rochelle Westchester
North Carolina
Kill Devil Dare (June 1-August 31)
Pennsylvania
Philadelphia Philadelphia
Rhode Island
Jamestown/Middletown/Newport Newport (October 1-October 31 and May 1-September 30)
Utah
Park City Summit (January 1-March 31)
Virginia
Washington, DC Metro Area Cities of Alexandria, Fairfax, and Falls Church; counties of Arlington and Fairfax Virginia Beach City of Virginia Beach (June 1-August 31)
Washington
Seattle King
Wyoming Teton and Sublette Jackson/Pinedale
(July 1-August 31)
cidental expenses only paid or incurred on or after October 1, 2011. See sections 4.06 and 5.04 of Rev. Proc. 2011–47 for transition rules for the last 3 months of calendar year 2011.
DRAFTING INFORMATION
The principal author of this notice is Eric D. Brauer of the Office of Associate Chief Counsel (Income Tax & Accounting). For further information regarding this notice, contact Mr. Brauer at (202) 622–4970 (not a toll-free call).
- Changes in high-cost localities . The list of high-cost localities in this notice differs from the list of high-cost localities in section 5.03 of Rev. Proc. 2010–39 (changes listed by key cities).
a. No localities have been added to the list of high-cost localities.
b. The portion of the year for which the following are high-cost localities has been changed: Yosemite National Park, California; and Chicago, Illinois.
c. The following localities have been removed from the list of high-cost localities: Phoenix/Scottsdale, Arizona; South Lake Tahoe, California; Silver
thorne/Breckenridge, Colorado; Riverhead/Ronkonkoma/Melville, New York; and Stowe, Vermont.
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