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Invoicing Basics

Labor and Materials Invoice: Template, Markup and Sales Tax

Build a labor and materials invoice that clients understand: separate parts and labor lines, markup, sales tax on materials, deposits and a worked example.

By Invoice Creator Editorial Team 11 min read

Quick answer: A labor and materials invoice lists the work you did and the parts you supplied as separate lines: labor as hours times a rate or a flat task fee, materials by item, quantity and unit price. Add markup into the material prices, apply sales tax according to your state's rules, subtract any deposit and show the balance due.

If you fix, build or install things, almost every job mixes two kinds of cost: your time and the stuff you bring. A labor and materials invoice (often called a parts and labor invoice in repair trades) shows both clearly so the client can see what they are paying for and you can apply the right tax. You can build one in our free invoice generator with one line per labor task and one line per material.

This guide covers how to structure the invoice, how to price labor and markup materials, how sales tax can differ between labor and materials, how to handle deposits, and a worked example with real arithmetic. For trade-specific layouts, see our guides for contractors and handymen.

What is a labor and materials invoice?

A labor and materials invoice is a bill for a job where you supply both work and goods. It differs from a pure service invoice (time only) and a pure sales invoice (goods only) because it has two distinct sections that may be priced, taxed and disputed differently.

Typical users include handymen, plumbers, electricians, HVAC technicians, painters, flooring installers, mechanics, appliance repairers and small builders. The invoice usually follows an estimate or quote, so the numbers should be easy to compare against what the client approved. Any difference between the estimate and the final bill should be explained on the invoice itself, not left for the client to discover.

What to include on a labor and materials invoice

Beyond the basics in our guide on how to write an invoice, a labor and materials invoice needs a few extra details:

  • Job address and description. Where the work happened and a one-line summary, such as "Replace bathroom vanity and faucet."
  • Labor lines. Each task or each worker type (for example technician vs helper) with hours and hourly rate, or a flat rate per task.
  • Materials lines. Each significant item with quantity, unit and unit price. Small consumables can be grouped as "shop supplies" if your contract allows.
  • Trip, call-out or disposal fees. Listed separately so they are not hidden in labor.
  • Tax. The rate and the base it applies to, especially if only materials are taxable.
  • Deposit and balance due. Any advance payment shown as amount paid.
  • Warranty terms. Labor warranty period and whether manufacturer warranties apply to parts.
  • Reference to the estimate or purchase order. So the client can match the invoice to what they approved.

Pricing labor: hourly vs flat rate

Labor is usually billed in one of two ways, and both work on the same invoice layout.

MethodHow it appearsBest forWatch out for
HourlyHours x hourly rateDiagnostics, unpredictable repairs, small jobsClients questioning time; keep timesheets
Flat rate per task1 x task priceRepeatable jobs such as fitting a faucetUnderpricing jobs that run long
Day rateDays x day rateMulti-day installs, crewsDefining what a day includes
Fixed price for whole jobOne lump sum, breakdown optionalQuoted projectsTax treatment if labor and materials are not separated

Minimum charges, call-out fees and travel time

Small jobs can cost you more than they earn if you only bill the minutes spent on site. Many trades set a minimum labor charge (for example, one hour) or a separate call-out fee that covers travel and setup. Whatever you choose, put it in your price list or estimate, then show it as its own line on the invoice, such as "Call-out fee" or "Minimum labor charge (1 hour)". Billing travel time inside the hourly labor line without saying so is a common cause of disputes, because the client compares the hours on the bill with the time they saw you working.

Tracking time and materials on the job

The invoice is only as accurate as the records behind it. A simple job sheet, paper or phone app, should capture start and finish times for each visit, who worked, every part taken from the van or bought for the job, and anything returned unused. Photograph supplier receipts as you go and write the job name on them. At invoice time you then copy figures rather than reconstructing them from memory, and if the client queries a line you can show exactly where it came from.

If you are deciding between a fixed quote and billing actual time and parts, our sibling article on fixed price vs time and materials compares the risks for each side.

Pricing materials: cost, markup and disclosure

Most trades businesses do not sell materials at cost. The price on the invoice includes a markup to cover the time spent sourcing and collecting parts, transport, storage, waste, returns and warranty callbacks. A markup is a percentage added to cost; margin is the percentage of the selling price that is profit. They are not the same number, and confusing them is a common way to underprice. Our markup vs margin guide explains the conversion.

Whether you show your cost depends on your contract:

  • Fixed or unit-price jobs: show only the selling price per item. Your cost is your business.
  • Cost-plus or time-and-materials contracts: if you promised "cost plus 15 percent", the client may be entitled to see supplier receipts. Show cost and markup as stated in the contract.
  • Client-reimbursed purchases: if you bought something on the client's behalf at their request, treat it as a reimbursable expense. Our reimbursable expenses guide covers how to bill pass-through costs.

Sales tax on labor vs materials

This is the part that trips up most small contractors. In the US, sales tax is set state by state, and the treatment of labor and materials varies widely:

  • Many states tax tangible goods, including parts sold during a repair, but not the repair or installation labor itself, provided the labor is separately stated.
  • Some states tax certain repair services as well as the parts.
  • Work on real property (buildings and fixtures) often follows special contractor rules, where the contractor pays tax on materials when buying them instead of charging the customer.

Texas shows how much the type of job matters. According to the Texas Comptroller's local sales tax guide for sellers, for nonresidential repair and remodeling the entire charge is subject to tax whether it is billed as a separated or lump-sum charge, while under separated contracts for new construction or residential repair and remodeling, tax is collected on the separately stated charge for materials. In other words, the same bathroom job can be taxed differently in an office than in a home.

The safe habits are: always list labor and materials on separate lines, note the tax base on the invoice, keep supplier receipts and check your own state's rules. Use our sales tax calculator to check the combined rate for a job address. This is general information, not tax or legal advice; confirm the rules with your state revenue department or an adviser.

Questions to answer before you set the tax on a job

  • Is the work on tangible personal property (an appliance, a vehicle) or on real property (a building, a fixed installation)?
  • Is the property residential or commercial?
  • Does your state tax the labor for this type of service, or only the parts?
  • Did you pay tax on the materials when you bought them, or buy them for resale with an exemption certificate?
  • Does the local rate depend on your business address or on the job site?

Write the answers down once for each type of job you do, and you will not have to work them out again every time you invoice.

Outside the US, VAT systems such as the UK's usually tax the whole supply at one rate once you are registered, though construction has its own special rules. Our UK invoice generator includes VAT fields if you work there.

Worked example: a parts and labor invoice with tax on materials only

A handyman replaces a bathroom vanity and faucet in a private home. The job is in a state where materials are taxable at 8.25 percent and separately stated repair labor is not. (The rate and rule are illustrative; check your own state.) The client paid a $200.00 deposit so the handyman could buy the vanity.

Line itemQtyRateAmount
Labor: remove old vanity, install new vanity and faucet (hours)6$65.00$390.00
Materials: 30-inch vanity with top1$289.00$289.00
Materials: single-handle faucet1$95.00$95.00
Materials: supply lines, P-trap, sealant1$36.00$36.00
Sales tax 8.25% on materials ($420.00)1$34.65$34.65
Total$844.65
Amount paid (deposit)-$200.00
Balance due$644.65

Check the arithmetic: materials are $289.00 + $95.00 + $36.00 = $420.00. Tax is $420.00 x 8.25% = $34.65. Labor is 6 x $65.00 = $390.00. Total is $390.00 + $420.00 + $34.65 = $844.65. After the $200.00 deposit, the balance due is $644.65.

Our generator applies one tax rate to the whole invoice, so for a materials-only tax like this, set the invoice tax rate to 0 and add the tax as its own clearly labelled line, as shown above. If both labor and materials are taxable at the same rate, just enter the rate in the tax field instead. Enter the deposit in the amount paid field and the balance due calculates automatically.

How to create a labor and materials invoice in 7 steps

  1. Pull up the estimate. Start from what the client approved so any differences are deliberate and explainable.
  2. Add your details and the client's. Include the job address if it differs from the billing address.
  3. Number and date the invoice. Use our invoice number generator if you do not have a numbering system yet.
  4. Enter labor lines. One line per task or worker type with hours and rate, using your timesheets.
  5. Enter materials lines. One line per significant item with quantity and selling price; group small consumables if allowed.
  6. Apply tax correctly. Either a single rate for everything, or a separate tax line on the taxable base.
  7. Record deposits and set terms. Enter any deposit as amount paid, add the due date and payment methods, then download the PDF.

Deposits, change orders and progress billing

Materials are where contractors carry the most cash risk. You often pay suppliers before the client pays you, and special-order items may not be returnable. Protect yourself by taking a deposit for materials on larger jobs and stating in writing what happens to it if the client cancels. Our deposit invoice guide shows how to bill it.

When the scope changes mid-job, add a short written change order and bill the extra labor and materials as separate lines labelled with the change order number. For multi-stage building projects, progress billing and retainage are covered in the construction invoice guide. US contractors working on real property should also learn their state's lien rules early, because preliminary notice deadlines often start running when work begins, not when payment is missed.

Common mistakes on parts and labor invoices

  • Lumping everything into one line. It invites disputes and can make the whole amount taxable where labor would otherwise be exempt.
  • Forgetting small materials. Fixings, sealant and fittings add up across a year. Track them on job sheets.
  • Charging tax on the wrong base. Charging tax on non-taxable labor overcharges the client; missing tax on taxable parts leaves you owing it.
  • Not matching the estimate. Explain any variance in a note, such as "Additional 1.5 hours to free seized shutoff valve."
  • Skipping warranty terms. State the labor warranty and that parts carry the manufacturer's warranty.
  • Invoicing weeks after the job. The longer you wait, the less the client remembers the work and the more likely they are to question hours and parts. Invoice the day the job finishes, while the result is in front of them.

Trade-specific examples with typical lines are in our plumbing invoice template.

Send your labor and materials invoice

A clear labor and materials invoice separates time from parts, prices materials with a consistent markup, applies tax on the right base and shows deposits as amount paid. Clients pay faster when they can check every line against the estimate. Open the invoice generator, pick a layout such as the corporate invoice template, add your labor and materials lines and download a professional PDF in minutes.

Frequently asked questions

What is a labor and materials invoice?

A labor and materials invoice is a bill that lists the work you performed and the parts or supplies you used as separate lines. Labor is usually shown as hours times an hourly rate or as a flat fee per task, and materials are listed by item, quantity and unit price. Separating the two helps clients check the bill and often matters for sales tax.

Should labor and materials be listed separately on an invoice?

In most cases, yes. Separate lines make the invoice easier to check, help you defend your pricing and make it simpler to apply the right sales tax treatment, because many US states tax materials and labor differently. Some fixed-price contracts are billed as a lump sum, but even then it is useful to keep a breakdown in your records in case the client or a tax auditor asks.

Is labor taxable on an invoice?

It depends on the state or country and the type of work. Many US states tax tangible materials but not repair or installation labor, while some states tax certain services too, and real property work can follow special contractor rules. In Texas, for example, nonresidential repair and remodeling is taxable in full. Check your state revenue department and confirm with a tax adviser before invoicing.

How much markup should I add to materials?

There is no single correct markup. Trades businesses commonly add a percentage on top of their material cost to cover sourcing time, transport, storage, waste and warranty risk. What matters is that the markup is consistent, covered by your contract or estimate, and produces a margin that keeps your business profitable. Our markup vs margin guide shows how to convert between the two figures.

Do I have to show my material cost to the client?

Usually not. Most contractors show the selling price of each material, which already includes any markup, rather than their own cost. The exception is a cost-plus or time-and-materials contract that promises cost plus a stated percentage, where the client may be entitled to see receipts. Read your contract terms, because what you agreed in writing decides what you must disclose.

What is a parts and labor invoice?

A parts and labor invoice is the same idea as a labor and materials invoice, with the wording common in repair trades such as auto, appliance and HVAC work. Parts are listed with part numbers, quantities and prices, and labor is shown as hours or a flat-rate job charge. The structure, tax treatment questions and markup decisions are the same as for any materials invoice.

How do I invoice a deposit for materials?

Ask for a deposit before ordering expensive or special-order materials, record it as a payment when it arrives and show it on the final invoice as amount paid so the balance due is correct. If the deposit is large, issue a separate deposit invoice first. State in your agreement whether the deposit is refundable once materials have been ordered.

How do I handle sales tax on materials only with a single tax rate?

If your invoicing tool applies one tax rate to the whole invoice and only materials are taxable, set the invoice tax rate to zero and add a separate line for the sales tax, calculated on the materials subtotal and labelled clearly with the rate and base. Alternatively, issue separate invoices for taxable and non-taxable parts. Either way, the arithmetic must be visible to the client.

IC

Invoice Creator Editorial Team

Guides on invoicing, cash flow and small-business finance from Invoice Creator, operated by Next Software Development Company. Content is reviewed for accuracy against the fields our own invoice generator produces.

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