CA30200 | IBA: outline: allowances
From HM Revenue & Customs · Capital Allowances Manual
IBA is given on qualifying expenditure. They are writing down allowances CA34500 and initial allowances CA34000. They write off the cost of constructing an industrial building or structure on a straight-line basis, usually over a period of 25 years. When an industrial building is sold or transferred to another person there is a balancing adjustment to make the allowances given match the actual loss suffered. Balancing adjustments are balancing allowances and balancing charges CA35000.