Prorating surcharges

There is a new option in Billing to prorate surcharges if the surcharge rate changes in the middle of a billing period.

A surcharge is defined as a one-off line item. When you select Surcharge from the Type list in the Create One-Off Setup window, a new Rate Change field is shown. If the surcharge rate changes, the selection in this field indicates whether the new rate is used, the old rate is used, or the charge is prorated.

Rate Change field for surcharge line item