There are single asset pools, class pools and the main pool.

A single asset pool may not contain expenditure relating to more than one asset.

The following provide for qualifying expenditure to be allocated to a single asset pool—

• F1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ;

• section 86 (short-life asset);

• section 127 (ship);

• section 206 (plant or machinery provided or used partly for purposes other than those of qualifying activity);

• section 211 (payment of partial depreciation subsidy);

• section 538 (contribution allowances: plant and machinery).

A class pool is a pool which may contain expenditure relating to more than one asset.

The following provide for qualifying expenditure to be allocated to a class pool—

• F2section 104C (special rate expenditure);

• section 107 (overseas leasing).

Qualifying expenditure may be allocated to the main pool only if it does not fall to be allocated to a single asset pool or a class pool.