Example
Electrical panel replacement $650, four sockets at $55, two hours of testing at $95.
Also called a detailed invoice, or a broken-down invoice.
What it means in practice
Itemizing is what makes an invoice checkable. A client can accept or query a single line without holding up the whole payment, which is exactly what you want when one fitting is in dispute.
It also protects the price. Three lines that add to $1,800 read as work done; one line that says $1,800 reads as a number to negotiate.
Covered in full in the guide to make an invoice.
Where it shows up on the paperwork
The body of the invoice: one row per piece of work, each with a description, a quantity, a rate and a line total, adding up to the subtotal.
What goes wrong
- Itemizing your internal steps rather than the client's outcomes, which invites a line-by-line negotiation.
- Hiding materials inside labor, so a client who queries the rate is really querying the materials.
- One line for everything, which turns the whole invoice into a single yes or no.
Common questions
What does itemized mean on an invoice?
It means the work is broken into separate lines instead of one figure, each with its own description, quantity, rate and total. The client can see what they are paying for line by line, and a query about one item does not put the whole invoice on hold.
Should every invoice be itemized?
Any invoice a client might query, which is most of them. A repeat client on a fixed monthly fee is the exception, and even then the line should say what period it covers.
How detailed should the lines be?
Detailed enough that the client can accept most of the invoice while asking about one thing. That is usually the level your trade bills in: per door, per linear foot, per hour, per visit.