The engagement-specific contract that defines what will be delivered, by whom, by when and for how much, under the umbrella terms of a master agreement. The document every delivery dispute is eventually settled against.
Ambiguity in a statement of work is never neutral. One party will absorb the cost of it, and which party is decided by how the document was drafted, not by who argues better six months later.
Last reviewed 3 July 2026 · Free and ungated
Before you sign, have operators who have drafted and disputed these documents challenge what the engagement actually commits you to.
Pressure-test this decisionA statement of work specifies a single engagement: deliverables, acceptance criteria, timeline, named roles, dependencies, assumptions and price, usually under a master services agreement that supplies the legal framework. Where the MSA governs the relationship, the SOW governs the work.
Every SOW contains gaps, because no one can specify a complex engagement completely in advance. What matters commercially is who pays for the gaps. A time-and-materials SOW with loose deliverables transfers ambiguity to the client: whatever emerges, the hours are billable. A fixed-price SOW with hard acceptance criteria transfers it to the supplier, who will price the risk in or claw it back through change orders. Neither structure is wrong; what is wrong is a buyer approving the price without noticing which structure they have agreed to.