Free Plumber Invoice Template

What is a Plumber invoice?

A plumber invoice is a billing document issued by a licensed plumber after completing plumbing installation, repair, or maintenance work. It details labor charges, parts and fixtures used, service call fees, and permit costs where applicable. The invoice serves as the official payment request and documents compliance with code for future inspections or property transactions.

What to include on a Plumber invoice

• Plumber name, license number, and contact information
• Client name and service address
• Invoice number and date of service
• Description of work performed including scope and method
• Labor hours at the applicable rate
• Parts and materials with manufacturer or part numbers
• Service call or diagnostic fee
• Permit fees for permitted work
• Warranty terms for labor and parts
• Payment terms and total amount due
• Plumbing contractor / master plumber license number
• Service (job) address, which is often different from the billing address
• Permit number and issuing municipality where a permit was pulled
• Parts markup line and per-part cost breakdown

Common plumber invoice line items

Setting your plumber rates

Most US plumbers bill $75-150/hr for residential work, with a $50-150 flat service-call minimum and $150-300/hr for emergency/after-hours; flat-rate per-job quoting is now preferred over hourly for standard residential jobs to avoid scope disputes. Rates run 15-20% above the national average in high-cost metros (e.g. Philadelphia, California, NYC where emergency work can exceed $200/hr) and 5-10% below in cities like Nashville or Cincinnati.

Payment terms

Due on completion for residential service calls (often collected on-site by card); Net 30 for commercial and new-construction / contractor accounts, frequently with progress billing tied to rough-in and final inspection.

Billing pitfalls to avoid

• Decide up front whether the service-call/dispatch fee is credited toward the first hour of labor or charged as a standalone minimum, and state it on the invoice, this is the single most disputed line on a plumbing bill.
• Show parts and labor as separate line items with the markup percentage stated in your terms; a bundled 'total' makes the whole charge taxable in many states and invites the 'why did you charge me $40 for a $28 valve' argument.
• Emergency vs standard vs after-hours rates must be flagged before the work, not surprise-added on the invoice.
• Permit costs are usually pass-through: list them at actual municipal cost separately from your labor so the customer sees you are not marking them up.
• Warranty/callback work should be zero-rated as an explicit line ($0, warranty) rather than omitted, so the customer sees it was covered and the job history is complete.

Tax notes

In most US states parts are taxable tangible goods while repair labor is exempt only if labor and materials are separately stated on the invoice; bundling them makes the entire charge taxable (e.g. Massachusetts taxes the whole bill if materials exceed 10% of a lump sum, California and Texas exempt separately-stated repair labor). Roughly 23 states do not tax plumbing repair labor at all.

This is general guidance, not tax advice. Tax rules vary by country, state, and situation, so confirm with a qualified accountant before relying on it.

How to invoice as a plumber

Plumbers commonly charge a flat service call fee for the first visit, then hourly for additional time beyond the initial diagnostic. For straightforward jobs like fixture replacements or drain cleaning, many plumbers use flat-rate pricing, which simplifies the invoice and reduces customer friction. Always itemize parts separately from labor. Include your markup on parts, which is typically 20-30% over your cost. For larger jobs such as repiping or new construction rough-in, use a two or three stage payment schedule tied to milestones. Include your license number and any warranty terms for the work performed, as clients will refer back to the invoice when warranty issues arise.