Skip to content
Invoice for Trades

Free Plumbing Invoice Template

Plumbing bills read differently from most trades: a trip fee, an hour or two on the clock, and a short parts list, usually all inside a single visit. This plumbing invoice template is pre-filled with the line items working plumbers actually use, so the invoice matches what the customer already agreed to. Fill it out, download the PDF, and send it before you leave the driveway.

Sample plumbing invoice

Billed to Bellweather Property Management, unit 14B main line backup. Rates are illustrative, not quotes.

DescriptionQtyUnitRateAmount
Service call / trip fee1trip$79.00$79.00
Main line auger from existing cleanout1job$189.00$189.00
Supply parts (P-trap kit, braided lines, angle stops)1ea$46.00$46.00
Total$314.00

What a plumbing invoice should include

A plumbing invoice should show every stop on the ticket, not only the repair at the end of it. Start with the service call or trip fee on its own line, then labor for the actual repair (hourly, or flat if you priced the job that way), then parts and fittings at their own prices. Put the job site address on the invoice when it differs from the billing address, add the service ticket number from dispatch, and note any permit you pulled, because some cities want proof of permit before their inspection is signed off.

Split labor and materials into separate lines even when the customer pays one flat price for the work. A clear split answers the question every homeowner asks after comparing quotes: did the price change because of parts, or because of labor? If your shop sells water heater replacements as a package, write that on the invoice line itself so the customer can see the haul-away and disposal were included rather than billed a second time.

Flat rate, time and materials, or trip fee?

Most residential shops bill from a flat-rate book: clearing a main line from an existing cleanout is one price, replacing an angle stop is another, and the book takes the guesswork out of approving work at the kitchen table. Flat-rate pricing moves faster than hourly because the customer approves a number before any wrench comes out, and it protects you from the arguments that arrive with a slowly climbing meter.

Time and materials still earns its keep on the jobs you cannot price until a wall opens: repipes, slab leaks, rerouting through finished ceilings. When diagnosis turns into exploratory work, stop, re-estimate, and get the new number approved in writing: even a text confirming the hourly rate and the rough hours is enough. A signed-off re-estimate is what keeps a surprise invoice from becoming a disputed one.

Getting paid before the van leaves

Collecting on site is the habit that separates shops with steady cash flow from shops waiting on the mail. Take payment at the end of the visit: a card reader on the phone, or a payment link added to the invoice email before you shut the tailgate. Residential customers who just watched the work get finished rarely object to paying on the spot; what kills collection is the three-week trip the invoice takes through a kitchen junk drawer.

Commercial and property-management customers run differently: they expect terms, and net 15 from the service date is a normal ask. Send the invoice to the address on the work order, reference the property and unit number, and note that the trip fee was credited against the repair where that was part of the arrangement. Those details keep a net-15 account from sliding toward net 45.

Plumbing gotchas that show up on invoices

Water heater swaps are the permit-adjacent job that comes through a residential door most often: some jurisdictions want a permit pulled and inspected every time, others do not mention it, and a few want it in the property owner's name. Check locally rather than assuming, and when a permit applies, bill it as its own pass-through line so the paperwork matches the invoice.

After-hours calls deserve their own rate line, not a quiet raise inside the hourly rate: a late-night burst line at an emergency rate is easy to explain when it is written on the invoice as its own item. Watch warranty language too: parts usually carry a manufacturer warranty while your work carries yours, and the invoice is where customers look first when something starts to drip six months later.

Taxes on plumbing invoices

Sales tax on plumbing work varies more than most trades expect. In many states parts and fittings are taxable even when repair labor is not; some states tax the whole invoice on repair projects but leave labor out of new construction. Pricing materials separately from labor keeps your records able to support either treatment. Check your state's department of revenue, or your accountant, before assuming labor is exempt.

This is general information, not legal or tax advice. Rules vary by location.

Frequently asked questions

Can I charge a trip fee if the customer declines the repair?

Yes, and it is routine. The trip fee pays for the visit and the diagnosis, not the fix. State it up front (service call applies) and bill it as its own line item on the invoice. Some shops credit the fee back against the repair if the customer books the work within a set window.

Should labor be marked taxable on a plumbing invoice?

Depends on the state. Plenty of them tax parts but leave repair labor alone, and some treat the entire repair invoice as taxable. Keep materials on their own lines so your paperwork backs up whichever rule applies, and confirm the labor question with your state's tax office before you change the taxable switches on your presets.

How should I invoice a water heater replacement?

Most shops sell the swap as one package line: tank, fittings, labor, haul-away and disposal together, with the permit as a separate pass-through if the jurisdiction wants one. A single package line reads better on a property-management invoice than three mysterious item codes, and it stops a customer from asking why the old tank was billed separately.

Do permits go on the invoice or get billed as a passthrough?

Either, as long as the invoice says which. Many shops show the permit as its own line at cost, so the city fee and the running-around are visible. If you mark up permit administration, keep that as its own line too. A permit that quietly tripled between the estimate and the invoice is the kind of detail customers photograph and send to their neighbors.

What payment terms do plumbing customers expect?

Residential expects to pay when the job is done. Commercial and property managers expect net 15 to net 30. Late-fee wording (for example 1.5 percent per month past due) is worth printing on the invoice even when you never intend to chase it, because the invoice is usually the only document most customers read before they pay.

Other trade invoice templates