Deduction apportionment on co operative bank reorganisation - time proportionate allocation to predecessor and successor entities. Special provision governs computation of specified tax deductions when a business reorganisation of a co operative bank occurs within a tax year, requiring time proportionate apportionment between predecessor and successor or converted banking company using day count formulae; thereafter, staged or deferred deduction entitlements transfer to the successor or converted entity and continue to apply in subsequent tax years as if the reorganisation had not occurred.