When a grant relates to a fixed asset, SSAP 4 recognises that there are two potential balance sheet treatments available to entities:
(a) to treat the amount of the grant as deferred income which is credited to the profit and loss account by instalments over the expected useful economic life of the related asset on a basis consistent with the depreciation policy
(b) to deduct the amount of the grant from the purchase price or production cost of the related asset, with a consequent reduction in the annual charge for depreciation.......
Hope you got it.....