Farm accounting differs from general business accounting in one respect that matters more than all the others: livestock are trading stock, they are valued annually, and the valuation method you elect has a long-term effect on taxable income that is difficult to undo.
Why livestock valuation matters
Because livestock are trading stock, the change in their value between balance dates flows through taxable income. A herd that increases in value produces taxable income even where no animal was sold, and a herd that falls in value produces a deduction.
That makes the valuation method a structural decision about how volatile your taxable income will be, not merely a compliance choice.
The herd scheme
The herd scheme treats a core breeding herd as a capital asset rather than trading stock. Animals are valued at national average market values set annually by Inland Revenue, and — critically — changes in those values do not flow through taxable income.
The practical effect is that market movements in the value of your breeding herd are excluded from taxable income. In a rising market this shelters what would otherwise be substantial paper income. In a falling market it removes what would otherwise be a deduction.
The important structural point: the herd scheme election is generally irrevocable. The ability to move in and out of the scheme to chase favourable movements was removed, and elections must be made by the required date. This was deliberate, because the previous flexibility allowed farmers to select whichever treatment suited the year.
National standard cost and other methods
The alternative for young and trading stock is national standard cost, which values animals based on standardised costs of breeding and rearing rather than market value. Market movements do flow through taxable income under this method.
Most farming operations end up with a combination — the breeding herd under the herd scheme and replacement and trading stock under national standard cost. Getting the split right, and applying it consistently, is where farm accountants earn their fee.
Other methods exist for particular circumstances, including self-assessed cost and market value, each with their own conditions.
Where the consequences land
- Succession. Herd scheme values transfer differently from trading stock values on a sale or intergenerational transfer, and the tax outcome for both parties depends on how the transaction is structured. This needs planning years ahead, not at settlement.
- Sale of the business. A herd scheme election affects the vendor’s taxable position on sale, and buyers need to understand what they are acquiring.
- Volatility. Farms outside the herd scheme carry livestock market movements through taxable income, which can produce large swings unrelated to cash generated.
- Provisional tax. Those swings then drive provisional tax obligations, which is how a farm with an ordinary trading year ends up with an extraordinary tax bill.
Other farm-specific treatments worth knowing
Income equalisation. The income equalisation scheme allows farming businesses to deposit income in a good year and withdraw it in a poor one, smoothing taxable income across the cycle. For a sector with volatile commodity prices and weather exposure this is a genuinely useful tool, and it is under-used relative to how well it fits the problem.
Development expenditure. Certain farm development and improvement costs have specific deductibility and amortisation treatment rather than following ordinary capital rules. Fencing, drainage, regrassing and water supply all have their own positions.
Adverse events. Specific provisions apply where livestock are sold as a result of a declared adverse event, allowing income spreading rather than a single-year spike.
What this means in practice
Farming operations in the Waikato, Southland, Canterbury and Manawatū face the same rules but different exposures — a Southland dairy operation and a Waikato dry stock unit have different herd compositions and different sensitivity to the valuation election.
The common thread is that these decisions are long-lived. A farm business should understand which valuation methods it is on, why, and what would happen on a sale or transfer. A surprising number cannot answer that.
Inland Revenue publishes the annual national average market values, national standard cost determinations and guidance on income equalisation free at ird.govt.nz. Given the amounts and the irreversibility, this is an area to use a specialist rural accountant rather than a generalist.
General information only, not tax advice.
