T&M (Time and Materials)

The point when a client formally accepts and begins using delivered equipment or a completed scope of work. For subcontractors, this date often triggers final billing milestones or warranty periods. Confirm it in writing to protect your payment rights.

A variable fee added to invoices to offset rising fuel costs for equipment, vehicles, and machinery. Rates are typically tied to a published fuel index and adjusted weekly or monthly. Subcontractors should confirm surcharge terms in their master service agreements before mobilising.

A contract provision that allows your rates or pricing to increase if specific costs rise, such as fuel, labour, or materials. It protects subcontractors from absorbing unexpected cost spikes during long-term projects. Always verify trigger conditions and notice requirements before signing.

A pricing structure where subcontractors charge a marked-up "rack" rate for materials, plus a separate fee for delivery or handling. It allows field service companies to recover supply chain costs beyond base labour rates.

A charge issued by an operator or general contractor to a subcontractor for costs incurred due to defective work, delays, or failure to meet contractual obligations.

A pre-agreed financial penalty charged when a subcontractor misses deadlines or fails to meet contract milestones. The amount is fixed in the contract, not calculated after the fact. LDs can seriously erode your project margins if schedule risks aren't managed upfront.

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