- Pre-letting expenses i.e. expenses incurred prior to the date on which the premises was first let apart from auctioneers letting fees, advertising fees and legal expenses incurred on first lettings.
- Post letting expenses i.e. expenses incurred after the period of the last letting are not allowable
- Expenses incurred in the letting of premises on an uneconomic basis are not deductible.
Expenses incurred in the period between lettings are deductible provided the landlord was not in occupation of the premises during the period and a new lease is granted.