How to Invoice as a Welder: Rates, Terms and Templates

Invoicing as a welder means turning a job that mixes labour, steel, gas and travel into an invoice a plant manager, contractor or homeowner can approve without calling you. The client rarely reads a weld procedure, but they do read hours, materials and extras. When each of those is its own line with a reference the client recognises, approvals move faster and disputes get smaller.

This guide covers what goes on the invoice, how to build an hourly rate from your costs, two worked invoices (staged fabrication and a field repair), and how sales tax treats welding in two contrasting states.

What should a welding invoice include?

Beyond the basics (your business details, the client, invoice number, issue and due dates), a welding invoice needs the references and splits that let the client match it to their own records:

If the job is to a code, such as AWS D1.1 for structural steel, name the code on the line rather than publishing your full procedure. It tells the client why the rate is higher without handing over proprietary detail.

How do welders set an hourly rate?

Work back from what the business needs to earn, not from a number another shop quotes. As a reference point, the US Bureau of Labor Statistics reports a median wage of $25.84 an hour ($53,750 a year) for employed welders, cutters, solderers and brazers in May 2025, with the top 10% earning more than $77,530 a year (BLS Occupational Outlook Handbook). That is what an employer pays an employee. A self-employed welder also pays for the truck, the rig, insurance, consumables stock and every hour spent quoting, driving and invoicing.

Worked example: building a shop rate. These inputs are assumptions for illustration, not market rates:

• Break-even rate: $102,000 ÷ 1,248 = $81.73 an hour.
• With a 15% profit margin on top: $81.73 ÷ 0.85 = $96.15 an hour.

If only half your hours are billable (common with lots of small mobile jobs), the break-even rate rises to $102,000 ÷ 1,040 = $98.08. That is the argument for a mobilisation fee and a minimum charge: they recover unbilled travel and setup time without inflating the hourly rate. Consumables billed as their own line are not in this calculation, so do not count them twice. To check a quote's margin, use the profit margin calculator.

Worked example: shop fabrication billed in stages

A commercial client orders a steel stair handrail to drawing SK-12. You quote $4,710 before tax and agree three payments: 40% when the steel is ordered, 30% when the client approves the fit-up, and 30% on completion before the rail is released for powder coating and delivery.

Each stage invoice should carry the quote reference and drawing number, the stage name and a running line such as "Previously invoiced: $1,884.00. This invoice: $1,413.00. Remaining: $1,413.00." Holding the final release until invoice 3 is paid is what protects you on a custom part nobody else will buy. Tax is left off this example because it depends on your state and on whether you install the rail; see the tax section. For more on staging payments, see the progress billing guide.

Worked example: a field repair invoice

You repair a cracked hinge mount on a customer's dump trailer at their yard in Texas, 40 miles from your shop. The repair takes 3.5 hours on site.

Texas treats repairing someone else's tangible personal property, such as a trailer, as a taxable service, and tax is due on the entire charge, including separately stated labour, parts and consumables (34 Tex. Admin. Code §3.292). The 8.25% used here is Texas's maximum combined rate: the 6.25% state rate plus up to 2% local tax (Texas Comptroller). Look up the actual rate for the job address before you invoice.

Send this invoice the same day, while the client still has the repaired trailer in front of them. One-off field clients are the hardest to chase a month later.

Does sales tax apply to welding work?

It depends on your state, and on whether the job is a repair, a fabrication of something new, or work on a building. Two large states show how far apart the rules can be:

• Texas: repair, maintenance and restoration of tangible personal property are taxable services, and the purchaser owes tax on the whole charge, labour included (§3.292 above).
• California: charges for fabricating new tangible property are taxable, even when the customer supplies the steel (CDTFA Regulation 1526). Repair is treated differently: charges for repair labour are not taxable (CDTFA annotation 315.0606), while tax applies to the parts. When parts are more than 10% of the total charge, the repairer must show their retail price separately from labour on the invoice (CDTFA Regulation 1546). On the trailer repair above, California tax would fall on the $85 of plate and pins, not the $420 of labour.

Welding on buildings and other real property (structural steel, fixed handrails, gates set in concrete) usually falls under each state's construction-contractor rules instead, which are different again. Check your state revenue department's guidance for contractors and repairers, and for state-by-state context see the sales tax nexus guide. This is general information, not tax advice.

Which payment terms suit welding jobs?

Match the terms to the type of job:

• Walk-in repairs and one-off field work: due on receipt or on pickup. The parts stay in your shop until paid.
• Fabrication: staged payments as in the example above, with the first stage before you buy steel. Steel and coating costs are paid by you long before the client sees a finished part.
• Industrial maintenance and shutdowns: the client's PO terms, often net 30 after the invoice is matched. Invoice weekly or at the end of each phase with daily hours and the equipment tags, so one disputed day does not hold up the whole shutdown.
• Rush and overtime: get written approval of the premium before you start, and repeat it on the invoice.

Put late-fee terms on the quote and the invoice from the start, and only within the law that applies to you; see late fee laws by state. For wording and examples of common terms, see invoice payment terms.

What mistakes cost welders money on invoices?

• "Welding, 4 hrs" with no part, location or PO. It gets queried, and queried invoices miss payment runs.
• Consumables absorbed into the rate. On a stainless TIG job, filler rod and argon cost far more than mild steel MIG wire and C25. Bill them as a line.
• Skipping mobilisation on short calls. A 30-minute repair still means loading the rig, driving and setting up.
• Billing travel as shop hours. If you charge portal to portal, say so on the quote and the invoice.
• Rework caused by client-supplied steel or prints billed as warranty. Document the defect before you start and bill the fix on a separate change-order line.
• Paperwork done for free. Weld maps, procedure records and inspection coordination on coded work take time. Quote them.
• Waiting until a multi-week job ships to invoice anything. By then you have funded the steel, the coating and the labour.

When is this approach the wrong fit?

• Large construction projects with retainage, certified payroll or AIA-style pay applications. These need contractor billing software; start from the construction invoice template or the construction invoicing guide.
• Production welding paid per part or per inch of weld. Piece-rate work for a manufacturer is usually billed against the customer's purchase order and releases, often through their supplier portal.
• Working as a subcontractor under a general contractor. Their contract decides the pay schedule, lien waivers and tax certificates; see subcontractor invoicing.

Invoicing welding work with InvoiceQuickly

You can type or say "Invoice Lone Star Haulage, PO 4471: mobilisation $150, 3.5 hours field welding at $120 on trailer unit 7, plate and pins $85, consumables $35, tax 8.25%", and InvoiceQuickly drafts an editable invoice that you review before saving. What fits a welding business, and what does not:

• Quotes and staged billing (Pro): send the quote as an estimate the client accepts in their client portal, then issue each stage as its own invoice with the stage named on the line. There is no built-in progress-billing, deposit or retainage feature, so the "previously invoiced" line is one you write.
• Tax: one tax percentage per invoice, applied to the discounted subtotal. That suits a Texas repair taxed on the whole charge. If one job mixes taxable and non-taxable lines, such as California repair labour and parts, split them across invoices or use software with per-line tax.
• Payments: record full or partial payments (cash, check, card, bank transfer) on every plan. On Pro, add a payment link from your own Stripe or PayPal account, and turn on scheduled reminders before and after the due date.
• Not available: attachments on invoices (send mill test reports, cut lists and inspection reports separately), a materials catalogue and a mobile app. It runs in the browser.

The Free plan covers 5 invoices, 5 clients and 3 AI drafts. Pro is $9/month for unlimited invoices, email delivery, estimates, reminders and payment links. See pricing or start free.

Frequently asked questions

How much do welders charge per hour?

There is no official figure for self-employed welding rates. The BLS median wage for employed welders was $25.84 an hour in May 2025, and a self-employed rate must sit well above that to cover the truck, rig, insurance and unbilled hours. In the worked example on this page, $102,000 of annual costs and owner pay over 1,248 billable hours gives a break-even rate of $81.73 an hour.

Do welders charge sales tax?

It depends on the state and the type of work. Texas taxes the whole charge for repairing someone else's equipment, labour included. California taxes fabrication of new items, but for repairs it taxes the parts and not the repair labour. Check your state revenue department before you set up your invoices.

How should I bill consumables like wire, rod and gas?

Bill them as a separate line per job, either as a flat lot charge or at cost plus a stated markup. Itemise them on mixed-metal jobs, because stainless and aluminium filler and argon cost more than mild steel wire and C25.

How do I invoice when the client supplies the steel?

Mark those items "material supplied by customer" and bill only your labour, consumables and any extras. Inspect the steel before you cut, and if it is out of spec, get written approval before you proceed. Bill any rework it causes as a change order, not as warranty.

Should I take a deposit before fabricating?

For custom fabrication, yes. A first payment when you order the steel covers material you cannot resell. In the worked example, 40% of a $4,710 quote ($1,884) is invoiced before any cutting starts.

How do I bill a mobilisation fee?

Show it as its own line, separate from labour, either as a flat charge per trip or in distance bands such as 0-25 miles and 26-50 miles. State the policy on your quote so it is never a surprise.

Which invoice template works for welding?

Use the welder invoice template for shop and field jobs, or the freelance invoice template if you mainly bill hours. Both are downloadable HTML layouts you can adapt.

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Last reviewed: October 27, 2026. Wage data from the US Bureau of Labor Statistics (May 2025); tax rules from the Texas Administrative Code and California's CDTFA regulations. Rates in the worked examples are assumptions for illustration. This is general information, not tax or legal advice.

More trade guides: how to invoice as an electrician, how to invoice as a plumber, invoicing for contractors and the InvoiceQuickly blog.