The herd basis offers several tax advantages:
Cost deduction: Farmers can deduct the costs associated with maintaining the herd from their taxable income.
Tax-free profits: Any profit from the eventual disposal of the whole herd or a significant part of the herd without replacement is exempt from capital gains tax. The tax-free profit on disposal of the herd can represent a windfall for farmers. These profits are maximised by those with the lowest cost of production or purchase price for those animals joining the production herd, and by those farmers who hold on to their herd for a long time.
As an example, had a farmer done nothing more than maintain a herd of beef cattle for the past 30 years the value of the cows would have roughly doubled over this time due to inflation. If the farmer has made a herd basis election, half of the proceeds on a substantial disposal of the herd would be tax-free profit.
In an inflationary period, farmers can recognise this benefit more quickly as the value of their animals will rise with inflation whilst the cost stays the same.
In addition to the tax advantages, the herd basis offers farmers a stable herd value that makes year to year comparisons more straightforward ignoring the need for stock value adjustments on herd animals.