Yes, it is important for independent contractors to invoice customers in order to guarantee payment and follow legal and tax guidelines. Because independent contractors are responsible for their own tax payments (self-employment tax) and project management, it is up to them to properly communicate with the correct party about payment terms. All independent contractor invoices should include:
The word “invoice”
A unique invoice number
The date the invoice is sent
Your contact information
Your client’s contact information
A detailed description of services provided, materials used, cost of materials, and other related product or service information
Taxes
Total balance due
Details for submitting payment