Plumbing Invoice: What to Include, Template, and Getting Paid
A professional plumbing invoice lists your license number and contact details, the customer’s billing address, an invoice number and date, itemized labor and materials on separate lines, any permit or disposal fees, sales tax applied to the taxable items, the total due, clear payment terms, accepted payment methods, and your warranty. Done right, it gets you paid faster and heads off disputes before they start.
What a professional plumbing invoice must include
Every plumbing invoice needs the same core fields, whether you hand-write it in the driveway or send it from an app. Miss one and you invite a phone call, a delayed check, or a rejected insurance claim. The table below is the required-field checklist. Treat anything marked required as non-negotiable on every job.
| Field | What goes here | Required? |
|---|---|---|
| Business identity | Company name, address, phone, email, logo, state license number | Required |
| Bill To | Customer name, service address, billing address, phone, email | Required |
| Invoice number | Unique sequential ID for tracking and taxes | Required |
| Dates | Invoice date, service date, due date | Required |
| Labor line(s) | Hours at your rate or flat-rate task, with a plain-English description | Required |
| Materials lines | Each part, quantity, and price, with brand or size when it matters | Required |
| Trip or diagnostic fee | Call-out or dispatch charge if you bill one | If applicable |
| Permit and disposal fees | Passed-through costs, with permit number once issued | If applicable |
| Subtotals and tax | Labor subtotal, materials subtotal, sales tax on taxable items | Required |
| Total due | Final amount, minus any deposit already paid | Required |
| Payment terms | Due date, accepted methods, late fee | Required |
| Warranty | Workmanship and parts coverage period | Recommended |
Keep it simple, transparent, and consistent from job to job. Customers question charges far less when the invoice reads like a receipt, not a mystery. For the per-task prices that feed these lines, see our flat-rate price list.
Labor vs materials, and how sales tax actually works
Split labor and materials on separate lines almost every time, then apply sales tax to the taxable items only. In most states, labor on a service call is exempt while parts and fixtures are taxable. That means the tax line is usually calculated on the materials subtotal, not the invoice total. Slapping one tax rate on the whole bill often over-charges the customer for labor tax you never owed.
Here is why separation matters beyond tax. Warranty claims handle parts and labor differently. Water-damage insurance adjusters reimburse only against an itemized invoice. And a clear split reduces arguments, because the customer sees exactly what each dollar bought.
A quick worked example on a $500 job in a state that taxes materials at 7 percent but exempts labor:
| Line | Amount | Taxable? |
|---|---|---|
| Labor (2 hrs at $150) | $300.00 | No |
| Materials (valve, fittings) | $100.00 | Yes |
| Sales tax (7% of $100 materials) | $7.00 | – |
| Total due | $407.00 | – |
Tax on the full $400 would have added $28 instead of $7, over-billing the customer by $21. Rules do vary. Some states tax repair or installation labor, Texas taxes labor on commercial drain work, and Hawaii and New Mexico apply a gross-receipts style tax to the entire job. Confirm your state rule with your department of revenue before you set your template, and use conditional wording if you serve more than one state.
A copy-ready plumbing invoice template
Below is a labeled example you can copy field for field. It shows a common service call: a leaking shutoff valve replaced under the kitchen sink. Every element maps to the required-field table above, so you can rebuild it in any tool. Swap the numbers for your own pricing.
| RIVERSIDE PLUMBING CO. (License #PL-48213) | |
|---|---|
| From | Riverside Plumbing Co., 118 Maple St, phone, email |
| Bill To | J. Alvarez, 402 Oak Lane (service + billing address) |
| Invoice # | 2026-0417 |
| Invoice date / Due date | Aug 31, 2026 / Due on receipt |
| Trip / diagnostic fee | $49.00 |
| Labor: replace 1/2″ angle stop, 1 hr | $150.00 |
| Material: 1/2″ quarter-turn stop | $18.00 |
| Material: braided supply line | $12.00 |
| Materials subtotal | $30.00 |
| Sales tax (7% on materials) | $2.10 |
| Deposit paid | -$0.00 |
| Total due | $231.10 |
| Payment terms | Due on receipt. 1.5%/mo late fee after 15 days. |
| Payment methods | Card, ACH, check, or Zelle |
| Warranty | 90-day labor, parts per manufacturer |
Notice the trip fee sits on its own line, materials carry their own subtotal so the tax math is transparent, and the warranty is stated in one line. If you are still setting your labor and material numbers, our guide on how to build the quote covers the estimate that becomes this invoice.
Permit, disposal, and other pass-through fees
Pass-through fees are real costs you pay on the customer’s behalf, so they belong on the invoice as their own lines, not buried in labor. The common ones are permit fees, inspection fees, dump or disposal fees for old water heaters and cast iron, and after-hours or emergency surcharges. Listing them separately shows the customer you are not padding your rate.
Put the permit number on the invoice once the jurisdiction issues it. On a water heater or repipe, a permit fee often runs from $50 to several hundred dollars depending on your area, and many inspectors will not sign off without one on the paperwork. Disposal fees for a water heater haul-away commonly land in the $30 to $75 range. Emergency and weekend work usually carries a surcharge of 1.5 to 2 times the standard rate, and it should read as a clearly named line so there is no surprise.
Payment terms, warranty, and the fine print that protects you
Your terms decide when the money lands and what happens if it does not. State the due date, the accepted payment methods, and the late fee in plain language on every invoice. Vague terms are why contractors wait weeks. A short, specific footer does more to protect a plumbing shop than any other block on the page.
Spell out four things. First, the due window: due on receipt, Net 7, or Net 14 for residential. Second, the late fee, often 1.5 percent per month, which must be written to be enforceable. Third, the warranty: a typical shop offers 90 days to one year on workmanship, with parts covered by the manufacturer. Fourth, a brief scope note, so a customer cannot later claim the price covered work you never quoted. Describe any third-party warranty terms neutrally and only as the manufacturer states them.
How to get paid faster
The fastest-paying invoice is the one you can collect on the spot. Card-on-file, deposits, and short terms move cash in days instead of weeks. The steps below, in order, tighten the gap between finishing the job and clearing the payment. Most shops that adopt even the first three cut their average days-to-pay sharply.
- Collect a deposit. On installs and remodels, take 25 to 50 percent before you buy materials. It funds the parts and confirms the customer is committed.
- Invoice immediately. Send the invoice the moment the job is done, from the driveway if you can. Every day you wait is a day the clock has not started.
- Use short terms. Due on receipt or Net 7 to Net 14 for residential. Net 30 just hands the customer weeks of float on your money.
- Keep a card on file. With written authorization, run the balance the day the work passes inspection. This ends the chase entirely.
- Offer financing on big tickets. On repipes and water heaters, a monthly payment closes jobs that a lump sum would lose. See how to offer customer financing.
- Add a clear late fee. A stated 1.5 percent monthly charge gives slow payers a reason to move.
On card fees, a surcharge is legal in most states if you disclose it before payment and stay within the network caps, up to 3 percent for Visa and 4 percent for Mastercard. As of 2026 it is banned in Connecticut, Massachusetts, and Maine, and Colorado caps it at 2 percent. Many shops instead build the processing cost into their pricing and keep cash and check fee-free.
Paper vs software vs field-service app
How you produce the invoice changes how fast you get paid and how much clean data you keep. Paper is free and offline but slow to collect and easy to lose. Accounting software adds tracking. A field-service app ties the invoice to the job, takes payment on-site, and stores the card. The table compares the three on the factors that matter to a service shop.
| Factor | Paper / PDF | Accounting software | Field-service app |
|---|---|---|---|
| Upfront cost | Free | Low monthly | Higher monthly |
| Send from the field | No | Sometimes | Yes |
| Take payment on-site | No | Limited | Yes, card and ACH |
| Card-on-file | No | Sometimes | Yes |
| Ties invoice to job history | No | Partial | Yes |
| Auto tax and reporting | Manual | Yes | Yes |
| Best for | Occasional side work | Office-run small shop | Active service fleet |
A one-truck operator doing occasional work can run on PDFs. A shop with a dispatcher and steady call volume collects noticeably faster on a field-service app such as ServiceTitan, Housecall Pro, or Jobber, because payment happens before the tech leaves the driveway. Pick the tool that matches your volume, then keep the invoice format consistent so every customer, and every insurance adjuster, reads the same clean document.
Frequently asked questions
What should a plumbing invoice include?
A pro plumbing invoice includes your business name, license number, and contact info, the customer’s billing address, an invoice number and date, itemized labor and materials on separate lines, permit and disposal fees, sales tax applied correctly, the total due, payment terms, accepted payment methods, and your workmanship warranty.
Should a plumbing invoice separate labor and materials?
Yes. Split labor and materials on separate lines almost every time. Warranty terms differ for parts and labor, most states tax materials but not labor, and water-damage insurance adjusters reimburse only against an itemized invoice. Separation also cuts disputes, because customers question a charge far less when they can see what it covers.
Do plumbers charge sales tax on labor?
In most states, no. Labor is a service and is usually exempt, while parts and fixtures are taxable. So you often apply tax to the materials subtotal only, not the whole invoice. Rules vary: some states tax repair labor, and Hawaii and New Mexico apply a gross-receipts style tax to the full job. Check your state rule.
How detailed should a plumbing invoice be?
Detailed enough that a customer knows exactly what they paid for without calling you. List each part with quantity and price, describe the work performed, show labor hours or a flat-rate line, and break out any trip, emergency, permit, or disposal fee. Clear descriptions reduce disputes, justify your price, and speed up payment.
What are good payment terms for a plumbing invoice?
For residential service, due on receipt or Net 7 to Net 14 beats Net 30, which just delays your cash by weeks. Collect a deposit of 25 to 50 percent on larger installs before buying materials. State a late fee (often 1.5 percent per month) in your terms so it is enforceable. Bigger jobs can use progress billing tied to milestones.
Can a plumber add a credit card fee to an invoice?
In most states yes, if you disclose it before the customer pays and cap it at the card networks’ limit (up to 3 percent for Visa, 4 percent for Mastercard). Surcharging is banned in Connecticut, Massachusetts, and Maine as of 2026, and Colorado caps it at 2 percent. Many shops build the cost into pricing instead and offer cash or check at no fee.
Last reviewed: August 2026.