When you need to make a fee adjustment to a LEDES (or Task Based Billing) file:
Create a new time slip on the matter.
Enter "WriteUD" in the Codes field. This step is important, otherwise the write up or down will not work:
Enter a description such as "Fee adjustment".
Enter "1" in the Hours field.
Enter a negative amount for the amount you would like to adjust the fees down:
These adjustments flow through to Timekeeper reports, so make sure to note Billed By person on the slip. You may want to assign the slip to a Firm timekeeper in order to not impact a single timekeeper.
As long as "WriteUD" is entered in the Codes field, the appropriate adjustment slip is created in the LEDES file with the appropriate fields filled out.