What word describes the object for which a payment was made?

This came up with regard to a leasing software application. Occasionally lump sum payments must be made and the reasons the payments were made - i.e., the object paid for - must be documented. I don't know what to call those objects. Payment object sounds more like the currency used for the payment. Payment Subject is a possibility but seems pretty vague.

Examples of the things that the lump sum payments can cover are Property Tax, Renovations/repairs, property signs. These could be viewed as additional costs indirectly associated with the leasing arrangement. That help any? (Thanks for your inputs so far ... altho not quite in synch with the need yet.)

Solution 1:

Leasing a software application is a service:

• (Commerce) the supply, installation, or maintenance of goods carried out by a dealer

• The object of payment is the service provided regarding the leasing.

(TFD)

Solution 2:

I like the general term "items,"

and it might work when combined with:

"listed (items)," "billed ...," "covered ...," "supplemental ...," "additional ...," "extra ...," etc.

For a one-word answer, maybe (to pay the) "supplementals" (noun - 4. anything that is supplemental) might fit, at least in this context.