What a rate card prices is what a supplier is paid to produce, whatever the proposal says about value.
Why it matters when the plan changes
Procurement wants a rate card because it makes comparison possible and spend predictable. Pricing by time makes both easy and ties the supplier's revenue to effort rather than result, which is the structural reason open-ended advisory pieces of work expand. Pricing by deliverable or capacity moves the incentive and makes comparison harder, since a fixed price for a defined set of deliverables cannot be lined up against a day rate without first agreeing what the deliverables actually are.
The tension is that outcome-based pricing sounds better than it usually works. Attribution is genuinely hard in organisational work, and a supplier paid on outcomes they only partly control will either price in the risk or select only safe pieces of work. Defined deliverables at fixed prices sit between the two and are where most workable arrangements land, closer to a capacity commitment than to a rate card priced purely on hours.
In practice
A buyer compares two proposals. One is a day rate and an estimated number of days; the other is a fixed price for a defined set of deliverables. The first is easier to compare with other suppliers and gives the supplier a reason for the work to take longer. The second is harder to benchmark and prices the thing being bought.
Evidence
A rate card publishes standard prices for defined units of supply.
Rate card, Wikipedia (2026)A framework agreement sets the terms under which subsequent work is priced and drawn down.
Framework agreement, Wikipedia (2026)
What it cannot tell you
A rate card states prices, not what a supplier is motivated to produce; it cannot show whether the units it prices, hours, roles or deliverables, match what the buyer actually needs completed. Comparing two cards on price alone says nothing about which incentive structure sits behind the numbers, or whether that structure suits the work in question.
Questions
Because it makes suppliers comparable and spend predictable, and because a framework agreement needs prices attached to defined units. Those are legitimate needs. They also push toward pricing by time, which is the easiest unit to standardise and the worst one to incentivise.
It pays a supplier for effort rather than result, so a longer piece of work is a better one commercially. That structural incentive is the reason advisory work expands, and it operates regardless of anyone's intentions on either side of the relationship.
In principle, and it is hard to implement. Attribution in organisational work is genuinely difficult, and a supplier paid on outcomes they only partly control will price in the risk or avoid difficult pieces of work. Fixed prices for defined deliverables sit between the two.
In the commercial system and in signed contracts, not in a model document or on a website. Customer-specific terms vary, existing customers retain their contracted prices, and publishing illustrative figures creates expectations that the approved price list may not match.
A rate card prices units on demand; a capacity commitment buys a level of completed work for a term. The second gives the customer predictability and the supplier a planning basis, and it prices finished work rather than the time taken to produce it.