Communications service provider. A communications service provider or CSP is a service provider that transports information electronically, for example a telecommunications service provider. The term encompasses public and private companies in the telecom (landline and wireless), Internet, cable, satellite, and managed services businesses.
Other companies seek Full-Charge Bookkeepers whose bookkeeping expertise allows them to work through the general ledger since their companyâs financials are produced by outside accounting professionals such as CPA firms or other in-house accounting professionals.
The charge on the invoice to you for the materials should be the amount BEFORE GST. If on your invoice the fees you are charge is one lump sum of the Home Depot bill including taxes, and then he chrges taxes on this amount then he is infact added the taxes paid on the Home Depot bill to his profits.