The old banded rates of depreciation are found in a schedule. You can find this schedule in the Income Tax Act 2007, which is empowered by sections like ss DB 46, EC 34, EC 35, EE 30, and EZ 23. These rates are shown in a table.

The table has two columns: one for the diminishing value depreciation rate and one for the straight-line equivalent. You can see the rates as percentages in these columns. For example, a diminishing value depreciation rate of 2% has a straight-line equivalent of 1.5%.

You can look at the table to find the different rates, such as 4% with a straight-line equivalent of 3%, or 100% with a straight-line equivalent of 100%.

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This page was last updated on 20 May 2025

View the original legislation for this page at https://legislation.govt.nz/act/public/1986/0120/latest/link.aspx?id=DLM1523344.

Schedule 11: New banded rates of depreciation, or

"How to work out the value of things that lose value over time, like machines or buildings"

Schedule 13: Depreciable land improvements, or

"Things that make land more useful and can be claimed on tax, like roads and bridges"

12Old banded rates of depreciation Empowered by ss DB 46, EC 34, EC 35, EE 30, EZ 23

This is a small table having 2 columns. The first row is the headings for the columns.
Column 1 Diminishing value depreciation rate (%)	Column 2 Straight-line equivalent (%)
2	1.5
4	3
6	4
7.5	5.5
9.5	6.5
12	8
15	10
18	12.5
22	15.5
26	18
33	24
40	30
50	40
63.5	63.5
100	100