Should a contractor invoice include a call-out fee?

If you charge one, put it on its own line rather than folding it into the first hour of labour, so the client can see what it covers.

How do I handle retention on an invoice?

Invoice the full value, then show the retained percentage as a discount line, and issue a separate invoice for the retention when the defects period ends.

Do I need to show my licence number?

In many regions a trade licence or registration number must appear on the invoice. Use the Tax ID field for it if it is required alongside your tax number.

Invoice Generator for Contractors

Labour, materials, plant hire and call-out charges — itemised on a document that stands up on site.

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Your businessBusiness name

EmailPhone

AddressTax ID / VAT number

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CustomerCustomer nameCustomer emailCustomer address

Invoice details

Invoice number

Currency

Invoice dateDue date

Items

Item 1

Description

QtyUnit priceTax %

Discount & notes

Discount type

Discount %

Payment termsNotes

Subtotal$0.00

Total$0.00

Your business name

INVOICE

Invoice number: INV-0001
Invoice date: Sep 1, 2026
Due date: Oct 1, 2026

Bill to

Customer name

Description	Qty	Price	Tax	Amount
—	1	$0.00	—	$0.00

Subtotal: $0.00
Total: $0.00

Separating labour from materials

Trade invoices should always split labour from materials. Clients scrutinise material costs and accept labour rates, and in several countries the two are taxed differently or attract different reporting requirements on construction work.

Where you have marked materials up, say so as a stated percentage rather than burying it in the unit price. Clients who find a hidden markup rarely call you back.

Staged payments on longer jobs

Anything longer than a couple of weeks should be invoiced in stages so you are never financing the client's project out of your own working capital.

Deposit on acceptance, typically covering materials
Interim invoices at agreed milestones or monthly
A final invoice on completion and sign-off
Retention, where the contract holds back a percentage until the defects period ends

Variations and extras

Extras agreed verbally on site are the single most common source of unpaid trade work. Give every variation a number, note it on the invoice as its own line referencing the date it was agreed, and the argument disappears.

Frequently asked questions

Should a contractor invoice include a call-out fee?: If you charge one, put it on its own line rather than folding it into the first hour of labour, so the client can see what it covers.
How do I handle retention on an invoice?: Invoice the full value, then show the retained percentage as a discount line, and issue a separate invoice for the retention when the defects period ends.
Do I need to show my licence number?: In many regions a trade licence or registration number must appear on the invoice. Use the Tax ID field for it if it is required alongside your tax number.