Welding Invoice Template - Canada

If you're a registered contractor, you must collect GST or HST (depending on your province) on both labor and materials. The rate varies by province—GST is 5%, while HST ranges from 13–15%. Calculate the tax on your subtotal and list it separately on your invoice. Even if you absorb the tax internally, showing it transparently builds client trust. Keep records of all GST/HST remittances for CRA compliance. Unregistered welders typically don't charge tax but shouldn't collect it either.

Yes, separating welding methods is industry best practice. Different processes command different rates based on skill, equipment, and material compatibility. Structural welding typically costs more than MIG welding due to precision and inspection requirements. TIG welding on stainless steel carries additional complexity. Breaking these into distinct line items shows clients exactly what they're paying for, prevents confusion about pricing, and protects you if scope disputes arise. It also helps you track profitability by service type.

Most welding contractors include consumables as a separate line item with a markup (typically 15–25%) above material cost. This covers storage, waste, and administrative tracking. You can either invoice consumables at cost plus markup or include them in your labor rate. Document your approach clearly so clients understand they're paying for materials beyond your time. High-precision work or specialty alloys justify higher markups. Never hide consumables in labor rates—transparent invoicing prevents billing disputes and demonstrates professionalism.

Absolutely. Mobile welding inherently includes transportation and site setup costs—these are legitimate business expenses and should be invoiced. Include equipment transportation, setup time, and site mobilization as separate line items. A typical mobile welding job includes travel time at a reduced rate plus setup fees. Clients understand that on-site welding differs from shop-based work. Clearly label these charges on your invoice so clients see the full scope of work. Some contractors bundle travel into a trip fee; others charge hourly—choose the method that fits your business model.

Most Canadian welding contractors use Net 30 terms (payment within 30 days), though many negotiate based on project size. For jobs under $500, payment on completion is reasonable. For larger contracts, asking for a 30–50% deposit upfront protects cash flow while you source materials. Some contractors use 2/10 Net 30 (2% discount if paid within 10 days). Industrial clients often expect Net 30 or longer. Clearly state your terms on every invoice. If a client consistently pays late, revise your terms or require deposits before work begins.

Yes. A brief quality guarantee strengthens your professional reputation and gives clients confidence in your work. You might note 'all welds inspected to CSA or CWB standards' or 'workmanship guaranteed for 12 months.' Specify what the guarantee covers (defective welds, material failure, poor adhesion) and what it excludes. This information can appear in invoice footer or terms section. For structural or critical welds, reference relevant certifications (CSA B149, CWB certification) to demonstrate compliance. Explicit quality commitments differentiate you from competitors and reduce dispute risk.

For multi-site projects, you can create one consolidated invoice with a breakdown by location or issue separate invoices per site depending on your agreement. Include the specific site address for each service section so clients know exactly where work occurred. If you're billing multiple sites for the same client within a billing period, consolidate under one invoice with clearly labeled location sections. This reduces confusion and matches how clients manage multiple facilities. For ongoing mobile work, some contractors issue monthly invoices consolidating all site visits.

Separating labor and materials provides clearer documentation for both you and your clients. It shows clients exactly what's billable work versus material cost, improving transparency. For accounting purposes, it helps you track material margins separately from labor profitability. Clients appreciate seeing this breakdown, especially for larger projects. From a tax perspective, it can simplify GST/HST reporting and cost tracking. The only downside is more detailed invoicing, but modern templates handle this easily. Industry-standard practice is to separate these categories whenever the job involves material purchases.