You finished the job. The leak is fixed, the pipes are clean, and the client is happy. Now you need to get paid — and a scribbled note or a plain text email won't cut it. A professional plumbing invoice protects you legally, speeds up payment, and shows clients you run a proper business. Here's exactly what to include, and a free template you can use today.
What to Include on a Plumbing Invoice
1. Your business information
Your full name or company name, address, phone number, and email. If you hold a plumbing licence or are VAT/GST registered, include that number. In most countries, this is a legal requirement — not optional.
2. Client information
The full name and address of the person or business you're billing. For commercial jobs, get the billing contact name — sending an invoice to a generic inbox is a reliable way to get it buried.
3. A unique invoice number
Every invoice needs one. It makes tracking straightforward, simplifies your bookkeeping, and is essential if you ever need to chase a late payment. Keep it simple: INV-001, INV-002, and so on.
4. Invoice date and payment due date
The invoice date is when you issued it. The due date is when you expect payment — typically Net 14 or Net 30 for most plumbers. Don't leave it vague. "Due on receipt" gets ignored. A specific date gets paid.
5. A clear breakdown of work done
Don't write "plumbing work — $400." Break it down so there's no room for dispute:
Labour: Replaced kitchen mixer tap (2 hrs @ $90/hr)
Parts: Mixer tap, PTFE tape, compression fittings
Call-out fee (if applicable)
Itemising builds trust and makes it much harder for a client to challenge the total.
6. Parts and materials
List every part separately with quantities and unit prices. This matters when a client questions why the final bill is higher than the original quote — you have the receipts, and your invoice shows them.
7. Subtotal, taxes, and total due
Show the numbers clearly. If you charge VAT, GST, or sales tax, list it as a separate line. Include any discounts too. Clients should be able to follow the maths without calling you.
8. Payment terms and methods
How do you want to be paid? Bank transfer, card, cheque? Include your bank details or a payment link directly on the invoice. The fewer steps between "invoice received" and "money sent," the faster you get paid.
9. Late payment policy (optional but recommended)
A single line — "Invoices unpaid after 30 days are subject to a 2% monthly late fee" — reduces how often you have to chase. Most clients pay on time just to avoid the friction.
Free Plumbing Invoice Template
Copy and adapt this for your next job:
[Your Business Name]
[Address] | [Phone] | [Email] | [Licence/VAT Number]
Invoice #: INV-001 Date: [Date] Due Date: [Date + 30 days]
Bill To:
[Client Name]
[Client Address]
[Client Email]
Description | Qty | Unit Price | Total |
|---|---|---|---|
Labour – [description of work] | [X hrs] | $[rate]/hr | $[amount] |
Parts – [item name] | [X units] | $[price] | $[amount] |
Call-out fee | 1 | $[amount] | $[amount] |
Subtotal: $[amount]
Tax ([X]%): $[amount]
Total Due: $[amount]
Payment methods: [Bank transfer / Card / Cheque]
Bank details: [Account name, sort code, account number]
Late payments are subject to a [X]% monthly fee after [30] days.
Common Mistakes Plumbers Make on Invoices
Sending a text message or plain email instead of a proper invoice. No paper trail, no legal standing, no professional impression.
Not specifying a due date. Clients will pay when they feel like it. A specific date changes the dynamic.
Writing one vague line item. "Plumbing work — $600" is an invitation to negotiate after the fact. Itemise everything.
Forgetting to follow up. Send a polite reminder 2–3 days before the due date — not a week after it's passed.
Changing your format every job. Inconsistency looks disorganised. Use the same template every time.
The Faster Way to Invoice
A template works fine when you're starting out. But once you're running multiple jobs a week, manual invoicing costs real time — and it's easy to make errors. Clervo lets you create a professional plumbing invoice in under a minute, track whether it's been paid, and send automatic reminders before the due date. No spreadsheets, no chasing.
The job's done. Getting paid shouldn't be the hard part.