Leasehold improvements made by either the lessor or lessee pursuant to a lease qualify for special tax treatment if placed in service (i.e., the work is completed) before the end of this year and certain other conditions are met. You can:
Talk to a tax advisor for the best way to write off your leasehold improvement costs.
Casualty losses such as from a storm, in areas declared by the President to warrant federal assistance. An election may be made to deduct the loss in the year before the loss or the year of the loss.