Invoicing Basics
Invoice checklist before you send a job bill
A good invoice is more than a payment request. It tells the customer what was done, how the total was calculated and exactly what to do next. That clarity reduces questions, disputes and late payments.
Before sending an invoice, check that the business name, ABN, contact details, customer name, job address and invoice number are all present. Add the date issued, due date, payment terms and a clear description of the work completed.
- Break labour, materials and call-out charges into separate line items.
- Show GST clearly when your business is registered for GST.
- Include bank transfer details or a payment link in the same email.
- Attach photos, signed quotes or job notes when they help explain the work.
- Keep a copy of the invoice and the customer communication trail.
Quotes and Scope
How to turn a quote into a smooth job handover
Most invoice problems start earlier, when the quote does not spell out the scope. A strong quote should describe what is included, what is excluded, how variations are handled and how long the pricing remains valid.
When the customer accepts the quote, record the acceptance date and keep the original terms attached to the job. If the customer asks for extra work, write the variation down before doing it. Even a short email confirmation can prevent confusion later.
- Use plain descriptions instead of internal shorthand.
- List materials, warranty limits and access assumptions.
- Set a quote expiry date so pricing does not drift over time.
- Convert accepted quotes into invoices instead of retyping details.
Expense Records
Keep receipt records that survive tax time
Trade businesses often lose time because receipts live in glove boxes, email inboxes and text messages. The habit that matters is simple: record the expense as close as possible to when it happens.
For each expense, keep the supplier name, date, amount, GST amount if applicable, category and a receipt image. Separate fuel, materials, tools, subcontractors, insurance, software and vehicle expenses so monthly reports make sense.
- Photograph paper receipts before they fade.
- Match large purchases to the job they belong to.
- Review categories monthly instead of waiting until year end.
- Export clean summaries for your bookkeeper or accountant.
Getting Paid
A simple payment follow-up rhythm
Late payments are easier to handle when the process is calm and consistent. The first reminder should usually be friendly and factual: include the invoice number, amount, due date and payment link or bank details.
If an invoice becomes overdue, follow up on a predictable schedule and keep notes on each contact attempt. For repeat customers, shorter payment terms or deposits can protect cash flow without making the relationship awkward.
- Send invoices as soon as work is complete or at agreed milestones.
- Use payment reminders before and after the due date.
- Mark invoices as paid as soon as money lands.
- Review overdue invoices weekly so nothing quietly ages out.