Disadvantages of a Lump Sum Construction Contract Contractors bear a significant risk if unforeseen project issues arise, which can lead to financial strain. Furthermore, changes to project scope often require complex change orders, adding administrative burdens.
In general, businesses which provide a service that does not result in a tangible good are exempt from sales tax, as it only applies to goods. For example a freelance writer or a tradesperson is not required to remit sales tax, although a carpenter making custom furniture is so required.