A buffer of extra labour, equipment, or budget set aside to cover unexpected delays or scope changes on a project. Subcontractors use it to avoid cost overruns when field conditions shift. Typically expressed as a percentage of the total estimated project value.
Planning Reserve Margin
Related Terms
Blanket Authorization
Cash FlowA standing approval that allows subcontractors to perform recurring work up to a set dollar limit without requiring a new work order each time. It simplifies billing and reduces administrative delays on long-term contracts. Subcontractors should confirm spending thresholds in writing before mobilising crews.
Headline Inflation
Cash FlowThe overall rate of price increases across the economy, including fuel and materials. For subcontractors, it signals rising operating costs that may not be covered by fixed-rate contracts. Monitor it when renegotiating agreements or submitting bids.
Change Order
Cash FlowA formal written amendment to an existing contract that modifies scope, cost, or schedule. Subcontractors should never perform out-of-scope work without a signed change order. Undocumented changes are a leading cause of unpaid invoices and disputes.
DSO (Days Sales Outstanding)
Cash FlowThe average number of days it takes to collect payment after a sale. For field service companies, DSO measures how long between completing work and receiving payment. Industry benchmarks range from 30-60 days.
DPO (Days Payable Outstanding)
Cash FlowA measure of how long a company takes to pay its invoices after receiving them. For subcontractors, a high DPO from your client means slower payment and tighter cash flow. Tracking client DPO helps you anticipate payment delays and manage operating costs.
Liquidated Damages
Cash FlowA 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.
Latest Cash Flow News
BP Pays Louisiana $350M Lump Sum, Settles Coastal Suits
BP will give Louisiana an accelerated $350 million payment for Deepwater Horizon claims and resolve remaining parish coastal lawsuits. Here is what coastal civil subcontractors should do this quarter.
14 days agoCash FlowKinder Morgan Lifts Force Majeure, Restores Mexico Gas Flows on Tennessee Gas
Kinder Morgan has resumed US-Mexico gas deliveries on its Tennessee Gas Pipeline and lifted force majeure after repairs. Here is what the restart means for integrity, outage-window and callout crews, and for their cash flow.
25 days agoCash FlowHudson Tunnel Boring Starts on $16B Project Amid Funding Fights
Tunnel boring machines are set to start cutting through 5,100 feet of Palisades rock on the $16 billion Hudson Tunnel project. Subcontractors should weigh payment and federal funding exposure before signing on.
1 month agoCash FlowClaremore Data Center Deal Sends $172M to Oklahoma Schools, County
A Beale Infrastructure data center project near Claremore, Oklahoma will pay $172 million in PILOT funds to local schools and county agencies over 25 years, with Sequoyah Public Schools receiving the largest share at $100 million.
1 month agoRelated Guides
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.
Cash Flow GuidePost-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.
Cash Flow GuideMechanic'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.
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