The Consignment Inventory Agreement: 7 Clauses to Define Before Stock Moves

Every consignment dispute is a missing clause

A consignment inventory agreement decides how the next three years of a supplier relationship will feel, and most are signed with the hard questions left vague. The model itself is simple: your stock sits at a hospital or customer site, and the customer pays only when they use it. The agreement is where that simplicity either survives contact with reality or turns into quarterly arguments about whose count is right, who pays for the implant that expired in a cupboard, and why the March invoice lists items nobody remembers using. We cover the model end to end in our consignment inventory management guide; this post is the how-to for the paperwork: what the agreement must define before a single unit moves, and the one operational condition that makes any of it enforceable.

One note before the clauses: this is operational guidance from inventory practice, not legal counsel, so have a lawyer draft the contract itself.

What a consignment inventory agreement covers

A consignment inventory agreement, also called a consignment stock agreement, is a contract between a supplier (the consignor) and the party holding the stock (the consignee) under which the supplier keeps ownership of goods stored at the consignee's site until the moment they are used or sold. Payment fires on use, not on delivery. That single inversion, ownership without possession, generates every clause in the rest of this post: someone else's building holds part of your balance sheet, and every unrecorded movement of that stock is your loss, not theirs.

The exposure is structural, not marginal. In MedTech, 30-40% of finished goods inventory sits on consignment at hospitals and clinics, based on Ventory field audits across deployments. And loosely governed consignment carries a measurable cost: a 2023 study in the Journal of Operations Management by Rosales, Nair and Pal, built on multi-year hospital inventory data, found that the use of consignment increases both shrinkage and spend. The agreement is where you decide, in advance, who absorbs that.

The seven clauses to write down before stock moves

Whatever template your legal team starts from, walk through these seven questions and make sure each one is answered in writing, per item and per location where it matters:

• Ownership and title transfer at point of use. Name the exact event that moves title from supplier to customer: a recorded consumption, a completed sale, an implant scanned out in theatre. "When the goods are used" is not an event, it is an argument waiting for a date. State who bears the risk of loss and damage while stock sits at the site, and how that interacts with the shrinkage clause below.
• Min/max stock levels per item per location. The band the supplier keeps the location inside: minimums that protect availability, maximums that stop the site becoming a free warehouse. Name who may change the band, how often it is reviewed, and what happens to stock above max when demand shifts.
• FEFO and expiry responsibility. Anything with a shelf life should rotate first-expired-first-out, and FEFO inventory discipline at a consignment location only happens if someone owns it. Write down who rotates stock, who eats the cost of expired units, and whether short-dated stock can be swapped or returned before it dies on the shelf. Expiry management at the location is the operational half of this clause.
• Count cadence and shrinkage liability. How often the location is counted, who performs the count, whether the other party may attend, and, the part everyone avoids, who pays for the variance. Consigned stock that is missing, damaged or unaccounted for lands on someone's P&L; we covered how big that number gets in the hidden P&L risk of consignment.
• Usage capture and billing triggers. Consignment billing fires on a recorded consumption event, so the agreement must define how usage is captured, how quickly it must be reported, and how disputes over an invoice line are resolved. If nothing records the use, nothing legitimate can invoice it.
• Data sharing obligations. What the consignee reports back, in what format, on what cadence. Daily stock and usage per location is a reasonable baseline for an active program; a monthly spreadsheet is a reconciliation exercise, not a data feed.
• Exit clauses. What happens to supplier-owned stock when the relationship ends: notice period, who counts the remaining units, condition standards for returns, and who pays freight and restocking. Unwinding a consignment location without an exit clause takes longer than setting the location up did.

At a glance

The make-or-break condition: usage data from the consignment location

Read the seven clauses again and notice what they share: every one of them is enforced with data from the consignment location. Title transfers on a recorded use. The min/max band is managed against actual levels. FEFO needs expiry dates visible at the shelf. Shrinkage liability needs counts. Billing needs consumption events. A beautifully drafted agreement over a location that reports nothing is a set of rights nobody can exercise.

And the consignment location is exactly where data capture is weakest. A hospital cupboard, a theatre store, a customer's parts room: no warehouse system, no terminal, no one whose job is data entry. Usage gets reported late, estimated at month end, or not at all, and every clause in the contract quietly becomes unenforceable at once.

The fix is to make recording use effortless at the moment it happens: a nurse scans the implant out of the cabinet, a technician scans the part out of the store. That one scan updates the consigned stock record, fires the billing trigger, feeds the min/max calculation and keeps the expiry picture current. This is the layer Ventory provides: field teams scan any barcode on a phone, offline if needed, and the data syncs to your ERP and your reporting. Operations running scan-based consignment this way reach 99.76% stock accuracy, and across deployments customers typically see up to 70% fewer stockouts and around 30% higher field productivity, with a program live in 2 to 3 months. Whether you use Ventory or build the capture layer another way, the rule stands: no usage data from the location, no enforceable consignment inventory agreement.

Consignment agreement vs VMI agreement

The two documents overlap and get confused, so separate them cleanly. A consignment stock agreement answers an ownership question: whose stock sits at the site, and when does it change hands. A VMI agreement answers a replenishment question: who decides when and how much to restock. Many field programs combine both, supplier-owned stock with supplier-planned replenishment and billing on recorded use, and the combined agreement then needs both sets of clauses. We wrote up the replenishment side, and why it breaks outside the warehouse, in our vendor managed inventory field playbook.

What this looks like in practice

• Consigned implants. A device maker stocks implants at a hospital; title transfers when an implant is scanned out in theatre, the scan fires the invoice, and the agreement names who replaces short-dated units before they expire.
• Loaner kits. Instrument sets rotate between hospitals on loan terms; the agreement defines who counts a kit on return, who pays for missing instruments, and how the implants consumed from the kit are billed.
• Industrial consumables. A supplier owns the fastener and PPE bins on a plant floor, with min/max per bin, monthly counts, and billing on recorded draw-down rather than on delivery.
• Spare parts at customer sites. A manufacturer keeps critical spares in a customer's parts room; the exit clause decides what happens to the unused half of that stock when the service contract ends.

Field notes

• Write every billing trigger as an event your systems can record; a clause that fires on "use" without a capture method is a clause that fires on memory.
• Agree shrinkage liability before the first count, not after it; the first variance report is the worst possible moment to open that negotiation.
• Answer the seven clauses on one page per location before legal drafting starts; if operations cannot answer a clause for a location, the contract cannot either.

Putting consigned stock at hospitals or customer sites? Book a demo and see how a scan at the point of use fires the billing trigger, updates the count and keeps every clause enforceable.

Frequently asked questions

What is a consignment inventory agreement?

A contract under which a supplier places stock at a customer's site while keeping ownership until the goods are used or sold. It defines when title transfers, the min/max stock band, expiry and FEFO responsibility, count cadence and shrinkage liability, how usage is captured and billed, what data is shared, and how the arrangement unwinds. Consignment stock agreement is the same document under another name.

Who owns consignment inventory?

The supplier, until the transfer event the agreement names, typically a recorded consumption or sale. That is why the transfer clause must be written as a single unambiguous event: between delivery and use, missing or damaged stock is by default the supplier's loss, unless the agreement assigns risk of loss differently.

How does consignment billing work?

The invoice fires on a recorded usage event, not on delivery. The agreement defines what counts as that event, how fast the consignee must report it, and how invoice disputes are resolved. In practice the reliability of consignment billing tracks the reliability of usage capture at the location: scan-based capture at the point of use produces clean invoices, and month-end estimates produce disputes.

What is FEFO and why does it belong in the agreement?

FEFO, first-expired-first-out, means the unit closest to its expiry date is used first. For consigned stock with shelf life, implants, reagents, sterile kits, the agreement should name who rotates the stock, who pays for units that expire unused, and whether short-dated stock can be swapped out. Without that clause, expiry losses accumulate in silence because neither party is contractually responsible for preventing them.

How is a consignment agreement different from a VMI agreement?

Consignment defines ownership: the supplier keeps title until use. VMI defines replenishment: the supplier decides restocking within an agreed band. They are independent choices, and many programs combine them, in which case one agreement needs to cover title transfer, the min/max band, billing on recorded use, counts, data sharing and exit together.

Related reading

• The 2026 guide to consignment inventory management
• Consignment inventory: the hidden P&L risk most MedTech companies ignore
• Vendor managed inventory in 2026: why it breaks outside the warehouse

About Ventory

Ventory is the field inventory layer for regulated, high-stakes industries. We give MedTech, 3PL, Aerospace, Energy and FMCG leaders real-time visibility and control over inventory outside the four walls, in hospitals, ambulances, trunk stock, consignment locations, and field service vans. Ventory is ERP-agnostic (SAP, Oracle, Dynamics, Sage, NetSuite) and trusted by a global medtech manufacturer, a national ambulance service, global logistics and consumer-goods operators. See how it works →