GB
The invoice is late, and late has a legal meaning where you are. Here is what it is worth.
Pick what's happening, or just type below
These are the figures your country actually sets, not an average.
Late-payment interest
11.75 %
section 1 of the Late Payment of Commercial Debts (Interest) Act 1998; rate set by article 4 of the Late Payment of Commercial Debts (Rate of Interest) (No. 3) Order 2002
Fixed compensation
£70.00
Fixed sum — LPCDIA 1998 s.5A