Tax, Timing and the Realities of Breeding

2 Apr 2026

Brad Reid

**This article is a refresher for breeders on a complex topic and it not expert advice. Breeders need to seek their own advice as tax planning depends on individual circumstances**

The financial year has just rolled over, and as the old saying goes, there are only two certainties in life, death and taxes. It is not the most glamorous side of the breeding game, and for many, it is the time of year that gets pushed to the bottom of the list. But as costs rise and margins tighten, understanding the tax side of your breeding operation is becoming less of an option and more of a necessity.

Few people in New Zealand have a deeper understanding of that landscape than John Aubrey. With more than 45 years of experience specialising in bloodstock taxation, and as the author of the widely respected Bloodstock Taxation in New Zealand, Aubrey has seen the same patterns, mistakes, and misunderstandings play out across generations of breeders.

And if there is one principle that underpins everything, it is a simple one.

“There are no set rules… but one of the big things is commercial reality.”

That idea of commercial reality sits at the heart of how Inland Revenue assesses breeding operations. It is not about how things are presented on paper, but whether the operation genuinely behaves like a business.

In practical terms, that means Inland Revenue is looking for a clear profit motive, structured decision-making, and consistency over time. There is no requirement to be profitable immediately, but there does need to be a pathway.

“There have been too many schemes… where it wasn’t commercial, it was stupid. Buying a $1,000 broodmare and charging $1,000 for grazing, that sort of carry on.”

There is a bluntness to that, but it reflects the reality. The difference between hobby and business is often not subtle, and in many cases comes down to the quality of decisions being made.

“If you go and buy a scrubber… and put it to a cheap stallion, your chances of making a profit are pretty poor. But if you buy a proper mare and send it to a commercial stallion… fair enough, you’re in business.”

Breeding is not expected to return a profit overnight. It is a long-cycle game, and Inland Revenue recognises that. But intent still matters, and that intent needs to be reflected in the way the operation is run, from mare selection to mating decisions and how stock is presented to the market.

That commercial lens also flows through how income is assessed.

There is no separate “bloodstock tax year” in New Zealand. All breeding activity sits within the standard financial year, running from 1 April to 31 March. Income from sales, expenses, and livestock values are all assessed within that window, which makes timing an important, and often overlooked, part of managing your position.

A sale just before balance date versus just after can materially change your taxable outcome. That is not aggressive tax planning. It is simply understanding how the system works.

One area that often causes unnecessary confusion is livestock valuation. Breeding stock is treated as livestock under tax law, and breeders are required to value their stock at balance date each year. Those values feed directly into the calculation of taxable income.

But there is an important distinction that is often misunderstood.

“There’s no unrealised gains or losses. If your breeding mare goes up in value… that’s great news. But you don’t pay any tax until you sell it.”

While values must still be recorded and applied correctly, increases in perceived market value alone do not create a tax bill. It is realised transactions that ultimately drive income.

Where breeders tend to run into trouble is not usually in one major error, but in smaller oversights or misunderstandings, particularly when planning has not been done early enough.

“Mainly… not having a commercial operation. And fiddling around the edges.”

That might be reflected in stock quality, unrealistic expectations, or simply not aligning decisions with a commercial outcome.

There are also some very specific technical traps that continue to catch people out, and one in particular stands out.

“Geldings should not be in the books without Revenue approval… they generally get forgotten about.”

This is where bloodstock taxation becomes highly specialised. A horse that is retained, trialled, and later sold can trigger tax consequences if it has remained within the breeding business accounts.

With proper planning, that same horse may instead sit outside the business.

“If it’s a private horse… there’s no tax on the sale, provided you don’t make a habit of it.”

It is a nuance, but one that can materially change the financial outcome, and it highlights the importance of making the right call at the right time.

Ownership structures can also create complexity. It is not uncommon for breeders to sell a large percentage of a yearling while retaining a minority share.

That may seem straightforward commercially, but from a tax perspective it requires careful treatment. The portion retained and the portion sold need to be accounted for correctly, and the outcome is not always intuitive.

The same applies to expenses.

While many breeding-related costs are deductible, including stud fees, veterinary work, agistment, transport, and sales preparation, not everything automatically qualifies.

Racing costs, in particular, are an area where mistakes are common.

“Racing is very complicated… you can’t claim all the racing costs, only a proportion.”

In many cases, over-claiming is not deliberate. It is simply a misunderstanding of how those costs are apportioned between breeding and racing activities.

At a fundamental level, the basics still matter.

“You must keep the invoices and the records for seven years.”

For most breeders, that aligns with existing industry requirements, including returns to breed societies and racing bodies. But consistency, accuracy, and accessibility of records are critical if anything is ever reviewed.

What becomes clear through all of this is that while some aspects of bloodstock taxation are straightforward, others are anything but.

And that leads to the most important takeaway.

Do not try to do it yourself.

This is a highly specialised area, and general accounting knowledge does not always translate to bloodstock. The interaction between livestock rules, ownership structures, and industry practice creates a layer of complexity that requires genuine expertise.

If something looks complicated, it usually is.

“If it looks too difficult, get advice straight away. Don’t muck around.”

For New Zealand breeders, there are some excellent operators within the industry who understand these nuances inside and out. Hamish Scott and the team at HWS Accounting are right at the forefront, combining strong technical expertise with real-world bloodstock knowledge. They are practical, approachable, and well worth engaging for anyone serious about structuring their breeding operation correctly.

For those wanting to go deeper, Aubrey’s Bloodstock Taxation in New Zealand remains one of the most comprehensive resources available, breaking down complex legislation into clear, practical guidance for breeders, accountants, and industry stakeholders alike.

Because while tax might never be the most enjoyable part of breeding, getting it right is one of the most important.

And in the current environment, it is not just about compliance.

It is about sustainability.

**This article is a refresher for breeders on a complex topic and it not expert advice. Breeders need to seek their own advice as tax planning depends on individual circumstances**

Click here to purchase the 5th Edition of Bloodstock Taxation in New Zealand!

Tax, Timing and the Realities of Breeding