2confidencegames
1trap
7albion
6albion
James Gould Cozzens 360x1000
Thomas Piketty2 360x1000
Richard Posner 360x1000
Margaret Fuller5 360x1000
3paradise
Lafayette and Jefferson 360x1000
11632
2gucci
3theleastofus
2paradise
13albion
Adam Gopnik 360x1000
1madoff
399
LillianFaderman
11albion
2theleastofus
3confidencegames
1gucci
1confidencegames
1falsewitness
1transcendentalist
1albion
lifeinmiddlemarch2
Thomas Piketty3 360x1000
Brendan Beehan 360x1000
Samuel Johnson 360x1000
2jesusandjohnwayne
lifeinmiddlemarch1
Maurice B Foley 360x1000
Ruth Bader Ginsburg 360x1000
Maria Popova 360x1000
Thomas Piketty1 360x1000
2trap
Storyparadox1
1lauber
7confidencegames
Spottswood William Robinson 360x1000
1defense
Betty Friedan 360x1000
storyparadox3
Learned Hand 360x1000
9albion
Mary Ann Evans 360x1000
6confidencegames
1lookingforthegoodwar
3defense
Mark V Holmes 360x1000
2transadentilist
2falsewitness
4confidencegames
5albion
storyparadox2
Anthony McCann2 360x1000
1theleasofus
Anthony McCann1 360x1000
14albion
8albion'
Margaret Fuller3 360x1000
2lookingforthegoodwar
Margaret Fuller2 360x1000
Tad Friend 360x1000
3albion
Stormy Daniels 360x1000
1jesusandjohnwayne
5confidencegames
Susie King Taylor2 360x1000
10abion
Gilgamesh 360x1000
2lafayette
4albion
AlexRosenberg
George F Wil...360x1000
Margaret Fuller1 360x1000
Margaret Fuller 360x1000
499
2albion
Margaret Fuller 2 360x1000
299
Margaret Fuller4 360x1000
George M Cohan and Lerarned Hand 360x1000
1lafayette
2defense
Edmund Burke 360x1000
199
Susie King Taylor 360x1000
1paradide
1empireofpain
Office of Chief Counsel 360x1000
12albion
Originally Published on forbes.com on August 13th, 2011

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Section 183 of the Internal Revenue Code tells us that we cannot deduct losses unless we are trying to make a profit.  The rules surrounding this issue are sometimes referred to as “hobby loss” rules.  I follow cases in this area pretty closely. You might say it is a hobby of mine.  The IRS seems to be particularly hard on people who lose money breeding horses.  I don’t get it.  The animals are very large and seem to defecate quite a bit.  I’d rather be doing tax research.  Tax Court judges seem to share my sentiment.  Horse breeders often win in Tax Court.  They certainly have a better track record thanAmway IBO’s (Independent Business Owners).  The latest case is that of Mark Blackwell.
Mark Blackwell and his wife Patti claimed net losses of slightly over $550,000 from 2003 to 2009.  Patti worked 30 hours a week as a nurse, her salary gradually rising over the period from the mid thirties to the mid fifties.  Mark’s salary fluctuated between 300k and close to 1.2 million.  Those numbers scream hobby loss, but they managed to win in Tax Court.  It is a case worth studying as they pretty much managed to do everything right.
In approximately 1996 Patti enrolled in the Equine Industry Management bachelor’s degree program at the University of Minnesota. In that program Patti took courses relating to the health care, showing, judging, breeding, bloodlines, and training of horses; the management of a horse activity as a business; and the economic aspects of horse breeding and training. In that program Patti in 1998 received another bachelor’s degree magna cum laude.
Becoming expert in the activity be it horse breeding or drag racing is not enough to establish that you are attempting to make a profit.  That is where Mark came in :
In 1999, in further preparation for starting up their horse breeding and training activity, Mark, with Patti’s assistance, prepared a detailedbusiness plan relating to the purchase, breeding, training, showing, and sale of reining horses. The business plan included sections entitled “Executive Summary”, “Market Overview”, “Advertising and Promotion”, and “Proforma Income Statement”.
Hard work is a factor:
Each day Patti would feed the horses, groom them, exercise them, turn them out, and clean out the horse stalls. 
With her training in medicine and to avoid additional expenses, Patti did much of the health maintenance on the horses without hiring a veterinarian. Patti vaccinated and dewormed the horses. She did the “foal watch” and would assist in the delivery of the foals.
Keeping proper records is critical even for establishing deductions in a profitable business.  In a business with losses it is even more critical:
In connection with their FHF horse activity, petitioners maintained a bank account under the name of FHF, and petitioners used BarnPro, a recognized horse farm software program, to record and keep track of FHF income and expenses.
If records are kept purely with a view to substantiating deductions that will not suffice.  Taxpayers should show that they used information to make course corrections, as they tried to steer in a profitable direction:
In 2006 petitioners shifted their horse breeding and training activity from reining horses to cutting horses because by 2006 cutting horses were in greater demand in the horse industry. 
At one point petitioners began trying to sell some of their horses as long yearlings to avoid horse training expenses they would incur if they kept the horses longer.
The best evidence that you are trying to be profitable is, of course, to become profitable.  Failing that, giving up the activity after a reasonable trial is also good evidence:

Petitioners believed in 2004 they had a broodmare band which would allow them to sell their foals at the national level. They hoped the sale of Sonata’s foal would recoup much of FHF’s investment. At one point two of petitioners’ horses were shipped to Missouri for sale with the hope of selling each horse for $15,000. Because of a softening of the horse market, the horses were each sold for less than one- half of the price expected. One of petitioners’ foals (Boonalicious) was a filly by a leading cutting stallion. Boonalicious’ stud fee was $15,000. Petitioners were optimistic about their prospects with this filly. Petitioners hired an experienced horseman to fit and present Boonalicious at the National Reined Cow Horse Futurity in Reno, Nevada. They understood that the horseman was the best of the best. They were devastated when they received only $6,500 for the horse, less than 10 percent of what similar horses had sold for in prior years and what they thought she was worth. Petitioners consulted all the experts and did everything the experts told them to do, but finally in 2009 petitioners determined that their FHF horse business was not sustainable.
The Blackwells rated well on almost all of the nine factors.  This decision is well worth studying.
(1) The manner in which the taxpayer carries on the activity;
(2) the expertise of the taxpayer in carrying on the activity;
(3) the time and effort expended by the taxpayer in carrying on the activity;
(4) the expectation that assets used in the activity may appreciate in value;
(5) the success of the taxpayer in carrying on other similar or dissimilar activities;
(6) the taxpayer’s history of income or loss with respect to the activity;
(7) the amount of occasional profits, if any, which are earned by the taxpayer;
(8) the financial status of the taxpayer;
(9) elements of personal pleasure or recreation
I have not done a systematic study of horse cases as I did for Amway cases.  My overall sense, though, is that taxpayers frequently win these cases.  Since the IRS gets to pick the best cases, from their viewpoint, to go all the way with, it seems like they might start directing their energies elsewhere, because the Court seems to think these people aren’t just horsing around.Mark E. Blackwell, et ux. v. Commissioner, TC Memo 2011-188