Free Welder Invoice Template

What is a Welder invoice?

A welder invoice covers work fabricating and joining metal components using MIG, TIG, MMA, or specialist welding processes. Welders work across sectors including construction (structural steelwork), manufacturing (custom fabrication), agriculture, automotive, and marine. Common billable work includes fabricating gates, railings, and handrails, structural steelwork for buildings and mezzanine floors, custom fabrication for industrial equipment, repair and modification of existing metalwork, and on-site welding for construction projects. Material costs (steel, stainless, aluminium, consumables) form a significant part of the invoice. Welders certified to specific standards (ISO 9606, ASME) for structural or pressure vessel work command premium rates and should reference their certification on invoices for commercial clients who need compliance records.

What to include on a Welder invoice

• Job description and site or workshop location
• Materials used (steel grade, section size, weight or quantity)
• Welding process and hours worked
• Consumables (wire, electrodes, gas, grinding discs)
• Surface treatment (grinding, blasting, priming, painting)
• Certification reference (if applicable, e.g. ISO 9606)
• Inspection or test reports
• Delivery or installation charges
• VAT details if VAT-registered
• Payment terms

Common welder invoice line items

How to invoice as a welder

For fabrication projects, invoice on delivery or installation. For large structural projects, invoice in stages: steel cut and prepared, fabrication complete, surface treatment, installation. List steel by grade, section, and weight. Consumables and finish materials should be itemised separately. Net 14 on delivery is standard.