Depending on whether the air conditioner is a "central operating unit" or if it is a "stand alone unit". The stand alone is an equipment purchase whereas a "central" is now part of the building.
it is considered a leasehold improvement.
Debit depreciation expensesCredit leasehold improvement
NO !
no, desks would not be considered a leasehold improvement. You are able to remove these items (take them with you when you go) *****They desk is considered furniture and fixtures and should be depreciated over 7 years, unless you elect to take advantage of section 179.
no
Yes, it can be classified as a leasehold improvement as long as it was indeed done on rented premises, etc.
yes
Yes
There are many websites in which one could find information about a leasehold improvement. Some of these websites include investopedia and businessdictionary.
They can be, yes.
It is considered a leasehold improvement if it is affixed to the property and when you're installing a new unit.
Could be, but without knowing what the improvement was we have no way of knowing.