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General trading stock rules

Find out when general trading stock rules apply to you.

Last updated 2 April 2025

When these rules apply

The general trading stock rules apply to you if the value of your trading stock changes by:

  • more than $5,000
  • $5,000 or less but you choose to do a stocktake and account for the change in value.

You can choose to do a stocktake and use the general trading stock rules even if you are eligible to use the simplified trading stock rules.

Under the general trading stock rules, you must do an end-of-year stocktake and record the value of all trading stock you have on hand at both:

  • the beginning of the income year
  • the end of the income year.

Value of stock

The value of stock at the end of an income year will be the same as its value at the start of the next income year.

In the next income year, where your closing trading stock's value is:

  • more than that of opening stock, you must include the difference as part of your assessable income
  • less than that of opening stock, you can deduct the difference from your assessable income.

If your business started trading during the income year, include the total value of stock on hand at the end of that year in your assessable income.

Holding an asset as trading stock

If you start holding a capital gains tax (CGT) asset that you already own (such as land) as trading stock for your business, there may be CGT implications.

Under the trading stock rules, you can choose to start holding the trading stock at either its original cost or its market value. If you choose market value, CGT event K4 will happen. This means that you may make a capital gain or loss.

For more information, see:

QC51614