The margin you quote is not the margin you keep. LD exposure, material escalation, and working capital cost all erode the net before a single brick is laid.
The quoted tender margin is never the net margin kept. Three independent risk factors erode it before the project starts: (1) LD exposure — every week of delay beyond the completion date is a direct cash deduction at a pre-agreed rate; (2) material escalation on fixed-price contracts — steel, cement, and fuel price increases over the project duration come entirely from the contractor's margin without an escalation clause; (3) working capital financing cost — the financing cost of the operating cycle gap on a 60-day government contract at 13% p.a. costs roughly 1.7% of revenue per year, which is never priced into most tenders. Together, these three can consume 5–10% of contract value — more than the entire margin on a competitive tender.
A ₹1 crore tender at 12% gross margin, 8% overhead, 2% contingency, 2% quoted net margin. Then: LD risk (0.5%/week × 4 weeks = 2% exposure), material escalation on fixed-price 18-month contract (8% escalation on 55% material share of 78% direct cost, 70% unhedged = 1.9% margin erosion), and working capital cost (60-day cycle, 13% p.a., 18 months = 1.7%). Net margin after risks: 2% − 2% − 1.9% − 1.7% = −3.6%. A tender submitted at 12% gross margin is projecting a 3.6% net loss.
Top contractors price tenders with all four components: direct cost, overhead, identified risk (LD + escalation), and working capital financing cost — as separate line items. Escalation clauses are a standard negotiation point on any project over 9 months. LD caps (5–10% of contract) are negotiated before signing. Working capital cost is added to overhead as a project-specific line based on the payment cycle of the specific client.
Before any tender submission, top contractors run a full net-margin model: gross margin → deduct overhead → deduct identified risks (LD × probability + escalation estimate) → deduct WC cost → arrive at net margin. Only if net margin exceeds the minimum viable threshold at this point is the price acceptable. Contract terms (escalation clause, LD cap, payment terms, advance) are negotiated as a bundle — not treated as standard terms to be accepted.
Rebota's BOQ Tracking module tracks actual direct cost vs. tendered cost in real time, surfacing cost overruns before they compound to project completion. Material Price alerts flag when material costs deviate from the tender assumption, triggering variation claims while the contractual window is still open.