TC Memo. 2026-47 | June 9, 2026

A couple of veterinarians just learned a painful lesson: passion for horses, combined with years of losses and sloppy records, is a recipe for IRS disaster. In Schumacher v. Commissioner, the Tax Court upheld over $191,000 in tax deficiencies — disallowing all losses from Schumacher Quarter Horses (SQH) under the “hobby loss” rules of IRC §183. Here’s what went wrong and what every rancher, breeder, or passionate activity-owner needs to know.

The Hobby Loss Framework

Under §183, the IRS can disallow business deductions for any activity not “engaged in for profit.” For horse-related activities, if your operation shows a profit in at least two of the last seven years, it’s presumed a business.  Other types of activities must show a profit in at least two out of the last five years. SQH never turned a profit in 18 years of operation — so the Schumachers had to fight on all nine regulatory factors. They lost six of them.

What the Schumachers Did Wrong

No records, no case. The single most damaging factor was recordkeeping — or the lack of it. The Schumachers kept handwritten notes and receipts, but only for tax reporting purposes. They never tracked expenses per horse, never used accounting software, and routinely co-mingled personal and business funds. The Court found the records were kept to reduce taxes, not to manage a business. Lesson: your books must look like a business owner’s, not a tax preparer’s afterthought.

No business plan. The Schumachers admitted they had no written business plan — and the Court found no evidence of an unwritten one either. Strategy changes (new bloodlines, training methods) correlated with better show results, not better profits. The Court saw a competition mindset, not a profit mindset.

18 consecutive years of losses. SQH ran net losses every single year from its 2001 founding through the years at issue, ranging from $51,028 to $210,148 annually. Even accounting for a startup period, the Court found no plausible path to profitability. A loss history this long and this consistent is nearly impossible to overcome.

Substantial outside income. Dr. Schumacher earned over $300,000 annually from his veterinary practice. The Court noted that the losses conveniently sheltered that income — a classic red flag suggesting the activity serves a tax purpose, not a business one.

Personal pleasure was evident. Both spouses openly derived tremendous satisfaction from horses. Trail riding, family participation, and show competitions all pointed to recreational enjoyment. Where other factors already tilt against you, personal pleasure seals the case for the IRS.

What They Did Right (and What Saved Them from Penalties)

Two factors favored the taxpayers: their genuine expertise in horse training and breeding, and the substantial time both spouses devoted to SQH despite demanding full-time jobs. These are real, but insufficient alone.

Critically, the Court waived the 20% accuracy-related penalties under §6662. The Schumachers had a decades-long relationship with a qualified accountant and enrolled agent who annually reviewed §183 compliance and advised them they were operating a business. Because they provided complete information to their advisor and reasonably relied on his judgment, they demonstrated good faith — even though the advisor was ultimately wrong.

Practical Takeaways

• Keep meticulous, per-animal records in actual bookkeeping software. Your records should demonstrate business management, not just satisfy your tax preparer.
• Write a business plan and update it annually. Document how and when you expect to reach profitability.
• Show a path to profit. Changing strategies to improve show results isn’t enough; document how those changes will translate to revenue.
• Minimize loss years. If you can’t turn a profit, actively reduce expenses and document those efforts.
• Segregate finances completely. Business and personal funds must never commingle.
• Rely on qualified, engaged tax counsel — and document that reliance in writing each year. It won’t save your deductions, but it may save you from penalties if you have written documentation that you relied on your tax professional’s advice in deducting the losses.

The Schumachers weren’t careless people. What killed them was that their records, finances, and decision-making looked like a hobby owner’s even though they genuinely believed they were running a business. The lesson is that documentation of profit intent matters as much as actual profit intent. The Tax Court didn’t doubt that the Schumachers were devoted to their horses.  It simply doubted that their devotion ever crossed into a genuine, documented profit objective.