Free Plumbing Invoice Template (and How to Get Paid Faster)

What goes on a plumbing invoice?

A plumbing invoice needs your ABN, the words 'tax invoice' if you're registered for GST, an invoice number, the date, itemised labour and parts, the GST amount and clear payment terms. Get those wrong and the invoice bounces back — or worse, the payment stalls while your customer 'checks it with the accountant'.

You finished the hot-water swap at 3pm. The invoice is still sitting in the ute at 9pm. That gap is why you're waiting on money.

Here's the template, then the faster way to bill.

Key takeaways

• A compliant tax invoice shows your ABN, the words 'tax invoice', an invoice number, the date, itemised work and the GST amount.
• Leave your ABN off and a business customer can legally withhold 47% of the payment.
• Sending from site with a pay link beats posting an invoice days later — that's the whole game.

The free plumbing invoice template

Copy this structure into a Word doc, Google Doc or spreadsheet and save it as your master. Fill the blanks per job.

• Header: 'Tax Invoice' (if GST-registered), your business name, logo, ABN, phone and email
• Bill to: customer name, site address, their ABN if it's a commercial job
• Invoice number and invoice date
• Job description: the property, the fault, the work done (e.g. 'Supply and install Rheem 250L electric hot water unit, remove old unit')
• Line items: labour hours × rate, each part with quantity and price, call-out fee
• Subtotal, GST (10%), total
• Payment terms: due date, bank details or a pay link, late-fee note if you charge one

The Australian Taxation Office sets the legal minimum: for a sale of $82.50 or more, a tax invoice must show 'tax invoice', your identity and ABN, the date, a description and the GST amount — plus the buyer's identity or ABN once the sale tops $1,000.

Pro tip: number your invoices sequentially (INV-0001, INV-0002). Your accountant and the ATO both expect a clean, gap-free run at tax time.

Why your ABN is not optional

Leave your ABN off a commercial invoice and the payer can hold back nearly half your money. Under the no-ABN withholding rule, a business that isn't quoted a valid ABN generally must withhold 47% from the payment and send it to the ATO.

So the ABN line isn't admin — it's the difference between banking $2,200 and banking $1,166 on the same job.

Where a template quietly costs you money

A template gets the invoice looking right. It does nothing about when you send it or whether it gets paid. That's the leak.

Think about the week: five jobs done, five invoices to type up on Sunday night from memory and a glovebox of receipts. One gets forgotten. Two go out with no follow-up. By Friday you're the debt collector, texting 'just following up on that invoice mate' to a customer who's already spent the money.

The fix isn't a nicer template. It's sending the invoice before you leave the driveway and letting the follow-ups run themselves. That's the same logic behind turning an accepted quote straight into a paid invoice instead of retyping everything twice.

Send from site, add a pay link, get paid the same day

The single biggest change to your cash flow: invoice on site and attach a way to pay right there. A customer with a card in hand pays now. A customer who gets a posted invoice on Thursday pays whenever.

Picture Dave, a solo plumber in Ballarat. He clears a blocked main by 11am, taps the accepted quote into an invoice on his phone, and texts a pay link before he's packed the jetter away. The $680 lands before lunch — no Sunday paperwork, no chasing. That's the workflow behind text-to-pay getting you paid before you leave the driveway.

Want the full playbook? See six ways to get paid faster as a service business and how tradies get paid on the day, not 30 days later.

"But I already use accounting software for invoices"

Fair — and keep it for the books. The problem accounting software doesn't fix: the quote, the booking, the reminder, the review request and the follow-up all live in separate apps. So you retype the same job details four times and none of them talk to each other.

One login that carries a job from enquiry to paid beats stitching a template, a booking app, a card reader and a chasing spreadsheet together. If you're weighing that up, the real cost of a six-app stack is worth five minutes.

How IgniteOS does this for you

Skip the Sunday-night invoice pile. With IgniteOS get-paid tools, you turn an accepted quote into a tax invoice on your phone, send it by SMS or email before you leave site, and take payment through a built-in card and pay-link setup. Unpaid invoices chase themselves with automatic reminders, so you stop being the debt collector.

It's plumbing invoicing, booking, reminders and reviews in one login — built for plumbers — instead of four apps that don't talk. See how the whole thing hangs together on our get-paid-faster page, and if you want the numbers on what one platform replaces, our calculator puts a typical stack at about $18,000 a year.

Start with one step: send your next finished job as an invoice with a pay link attached, and watch how much sooner it clears. IgniteOS runs a 14-day free trial — card required, $0 charged until day 14, cancel anytime, with free migration and an onboarding session included.

Frequently asked questions

What needs to be on a plumbing tax invoice in Australia?

A plumbing tax invoice needs the words 'tax invoice', your business name and ABN, the invoice date and number, an itemised description of labour and parts, and the GST amount. For sales over $1,000 you also add the buyer's identity or ABN. The ATO sets these as the legal minimum for any sale of $82.50 or more.

Do I have to put my ABN on a plumbing invoice?

Yes. Leave your ABN off a commercial invoice and the payer can legally withhold 47% of the payment under the ATO's no-ABN withholding rule. On a $2,200 job that's the difference between banking $2,200 and $1,166, so the ABN line is non-negotiable on every invoice you send.

How do I get paid faster as a plumber?

Invoice on site the moment the job's done and attach a way to pay — a card reader or a pay link — instead of posting an invoice days later. A customer with a card in hand pays now. IgniteOS turns your accepted quote into an invoice on your phone and chases unpaid ones automatically; see the get-paid-faster page.

Is a template enough, or do I need invoicing software?

A template gets the invoice looking right but does nothing about when you send it or whether it gets paid. If you're doing five jobs a week and typing invoices on Sunday night, software that sends from site with a pay link and auto-chases unpaid invoices recovers the cash a template leaves on the table.