Do I need to put my license number on the invoice?
Many states require licensed contractors to show their license number on contracts, invoices and advertising. Even where it is optional, it reassures customers and their insurers.
Flat rate or time and materials?
Flat-rate pricing per task, such as installing a ceiling fan or replacing a panel, is easy for homeowners to accept. Time and materials suits troubleshooting and remodels where the scope is unclear. Say which one each line uses.
Who pays for the permit?
Usually the customer, with the electrician pulling it and passing the fee through at cost. Put the permit number on the invoice so the homeowner has it for the final inspection, insurance and any future sale.
Is electrical work taxable?
That varies by state. Some tax repair labor, some tax only materials, and in many states the contractor pays tax on materials when buying them and does not charge it separately. Check your state's rules for contractors.