Work on Hand (WOH)

An unplanned increase in project costs due to rising material prices, labour rates, or scope changes. Subcontractors without escalation clauses in their contracts absorb these overruns directly. Always negotiate cost escalation provisions before signing fixed-price agreements.

The amount a subcontractor or field worker actually receives after all deductions — such as taxes, union dues, equipment charges, or mobilisation costs — have been subtracted from gross earnings. For subcontracting companies, tracking net pay against invoiced amounts is critical to maintaining healthy margins on field projects.

A variable fee added to invoices to recover fuel cost fluctuations on equipment-heavy jobs. Subcontractors often tie it to a published index, such as the weekly rack price. Review prime contracts carefully — some owners cap or exclude surcharges entirely.

How closely a submitted bid reflects the actual cost of completing a job. Poor bid accuracy leads to underbilling, cost overruns, or lost contracts. Subcontractors track it to sharpen estimating and protect margins.

A pricing model where the contractor bills for actual time spent and materials used, plus markup. Common for work where scope is uncertain.

A specific, billable unit of work or material listed in a contract that triggers payment when completed. Each pay item has a defined scope, unit of measure, and agreed price. Subcontractors invoice against pay items to document and collect earned revenue.

What Happens to Subcontractor Billing When a Project Stalls, Goes Over Budget, or Never Gets Commissioned

You did the work. The project was cancelled, shelved, or never activated. Here is what subcontractors need to know about billing rights, legal remedies, and how to get paid when no one wants to discuss the invoice.

Post-Completion Warranty and Punch Work: Protecting Your Margins After the Job Ends

Warranty walks, punch lists, and post-completion callbacks eat into subcontractor margins. Learn how MSA warranty clauses work, when you can push back on mobilization costs, and how to document your way out of disputes.

Mechanic's Lien Rights for Subcontractors: What to Do When You're Not Getting Paid

A practical guide to mechanic's lien and materialman's lien rights for oilfield and construction subcontractors in Texas, Oklahoma, and Alberta — deadlines, filing steps, and leverage tactics.