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Business income tax
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Business income tax


If you're a business you'll need to claim depreciation as a deduction in your income tax return.

Depreciation accounts for the reducing value of your business assets due to wear and tear over time.

Depreciation rate finder
Find the depreciation rate for your business assets.
Depreciation calculator
Calculate the depreciation deduction for your business asset.

Watch a short video on depreciation
Get up to speed on depreciation.

Understanding depreciation

Find out about depreciation: what assets to depreciate, how to go about it and what to do if you choose not to depreciate your business assets.

Managing depreciation

Learn how to manage depreciation, including keeping records and what to do when you keep business assets for private use or sell assets you have claimed depreciation.

Depreciation methods

Find out about the different methods of calculating depreciation.

Depreciation on patents

Find out about depreciating patents, including when to start depreciating a patent, depreciation rates, and what to do when you sell a patent.