Free General Contractor Invoice Generator

A general contractor's invoice must separate materials from labour, with quantities and unit prices, because clients and lenders on financed jobs need to see what is product versus work. List permit, inspection, and disposal fees as their own lines, never buried in labour, since they are often reimbursable or escrowed. Label each invoice with the phase or milestone it covers, such as Phase Two framing at forty percent of contract, so progress billing stays auditable. State the retention or holdback percentage if your contract includes one, typically ten percent held until final inspection. The most common mistakes are bundling materials and labour into one lump sum, which triggers disputes when clients think they are overpaying for labour alone; waiting until job end to invoice, which starves the next phase of materials cash; forgetting permit and dump fees, effectively eating hundreds in pass-through costs; and omitting lien release language, which delays payment because title companies and lenders will not release funds without it. One practical tip: attach a conditional lien release to every progress invoice.