Free Plumber Invoice Template
This free plumbing invoice template includes fields for invoice number, date, client billing info, itemized work completed, materials used with costs, labor hours and rates, subtotal with tax, payment terms, and due date. Download the PDF to bill clients professionally and get paid faster.
What's Included
- Invoice number and date for record keeping
- Your company info and client billing address
- Itemized list of work completed with descriptions
- Materials used with quantities and costs
- Labor hours and rates by task
- Subtotal, tax rate, tax amount, and total due
- Payment terms and due date
- Payment method instructions
- Late payment policy
How to Use This Template
- 1
Assign a unique invoice number to every job for tracking. Use a simple system like the year plus a sequential number (2026-001, 2026-002). This makes tax season easier and helps you follow up on unpaid invoices without confusion.
- 2
Itemize the work completed with clear descriptions that match the original estimate. If the client approved an estimate for "Water heater replacement including expansion tank," your invoice should use the same language. Consistency builds trust and prevents payment disputes.
- 3
List materials and labor separately with the same level of detail as your estimate. If material costs changed during the job, note the difference. Transparency about cost changes prevents "why is this more than the estimate?" phone calls.
- 4
Set clear payment terms: Net 15 or Net 30 are standard for plumbing work. Include your accepted payment methods (check, credit card, Zelle) and a late payment fee (typically 1.5% per month). Stating consequences upfront dramatically reduces late payments.
Frequently Asked Questions
When should I send my plumbing invoice?
Send the invoice immediately after completing the work, or at each milestone for larger projects. The longer you wait, the less urgency the client feels to pay. Same-day invoicing shows professionalism and improves cash flow.
What payment terms are standard for plumbing invoices?
Net 15 (payment due within 15 days) is most common for residential plumbing. For commercial work, Net 30 is standard. Always specify the due date explicitly (e.g., "Due by April 15, 2026") rather than just "Net 30" to avoid confusion.
How do I handle partial payments on plumbing invoices?
For progress billing, issue separate invoices for each milestone (rough-in, finish, final). Track payments received and balance remaining on each invoice. This is cleaner than modifying a single invoice multiple times.
Should I charge for materials separately on my invoice?
Yes. Separating materials from labor on your invoice matches your estimate format, creates a clear paper trail for warranty claims, and makes your pricing transparent. Include part numbers or descriptions so clients can verify costs.
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