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HMRC internal manual

Capital Gains Manual

CG17209 - Indexation: basic computations

TCGA92/S52A

As part of CGT Simplification, indexation is no longer available in respect of disposals made on or after 6 April 2008.

However CGT Simplification does not apply to companies who pay corporation tax on their chargeable gains. From 6 April 2008 TCGA92/S52A provides that indexation will only apply for the purposes of corporation tax.

The following guidance will therefore be applicable to both CGT and corporation tax on chargeable gains for disposals by companies made on or before 5 April 2008 but only to corporation tax on chargeable gains for disposals by companies made on or after 6 April 2008.

The allowance is normally the amount arrived at by applying the indexation factor to each item of expenditure (or value), within TCGA92/S38 (1)(a) and (b), incurred or treated as incurred by the person disposing of the asset. Although in practice computations often treat the allowance as an addition to cost, in strictness the allowance is deducted from the gain in order to arrive at the chargeable gain, and computations sent to taxpayers or their agents should be laid out in the correct form.

Layout of guidance

The rest of the instructions are laid out as follows.

CG17230 - CG17292

Rules from 6/4/1988 - Basic principles and simple computations

CG17310 - CG17313

Rules from 6/4/1988 - Basic examples

CG17350 - CG17409

Rules from 6/4/1988 - Various specific circumstances

CG17430 - CG17450

Rules from 6/4/1988 - Indexation and Capital Allowances

CG17480 - CG17517

Rules from 6/4/1988 - Further examples - Specific circumstances

CG17540 - CG17549

Specific rules applicable April 1982 to March1985

CG17570 - CG17601

Specific rules applicable April 1985 to March 1988

CG17700 - CG17768

Specific rules applicable from 30 November 1993.

CG17800 - CG17880

FA 1994 Transitional Relief - applicable 1993/4 and 1994/5 only

Shares

Shares and other assets which form part of a pool are subject to different bases of computation. Please refer to the relevant guidance in the section beginning at CG51500 when dealing with such assets.