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HMRC internal manual

Business Leasing Manual

’Income-into-capital’ schemes and back loaded leases: Lease changes: cumulative normal rental excess

CTA10/S923 also requires any cumulative normal rental excess to be computed using the same assumptions about periods of account and bad debts as the cumulative accounting rental excess which is the measure of the catching-up charge. Where, exceptionally, there is such a cumulative normal rental excess at the time the lease first comes within Chapter 3 of Part 21 of CTA 2010 it may be carried forward in the same way as ordinary cumulative normal rental excess.