Rebasing
From ACT Wiki
1. Index numbers.
In the context of index numbers, rebasing can refer to either:
- changing the weights in an index, such as an inflation index,
- changing the reference period of an index number series.
The weights and the reference period may be changed at the same time.
2. Tax.
In relation to tax, rebasing means re-stating the base value of an asset for tax calculation purposes.
The re-statement would usually be upward, thereby reducing any potentially taxable gain calculated on any surplus over the base value.