Tooling is the one purchase in plastics sourcing where the buyer funds the supplier's capital equipment. A mould exists only because one buyer ordered it, which makes tooling payment terms the highest-leverage line in a custom-moulding contract: the schedule decides who holds the money while steel is being cut, and the ownership clause decides who holds the tool when the relationship ends. This guide covers the standard structures, how to tie each payment to a verifiable tooling stage, and the clauses that keep a paid-off mould from becoming a hostage.
The Standard Split and Why It Exists
The market-standard tooling deposit is 30–50% with the order and the balance on tooling completion — defined as first-article approval or successful sampling, not merely "tool finished". The deposit exists because the tool shop carries steel, machining and design hours before any return; the balance exists because the buyer carries all the risk until the tool produces acceptable parts. A supplier asking 100% upfront is not automatically dishonest, but the request moves all leverage to one side and should be answered with a lower split, a bank guarantee, or a different supplier. A tooling deposit larger than half the tool value, on a first order from an unverified factory, is the pattern behind most tooling disputes. A written mold payment schedule removes that ambiguity before steel is cut.
Milestone Schedules for Larger Tools
| Milestone | Typical share | Evidence required |
|---|---|---|
| Order / design kick-off | 30% | Signed drawing and tooling agreement |
| Steel machining complete | 20% | Photo evidence of machined cavities |
| First shot (T1 sample) | 20% | Sample parts plus dimensional report |
| First-article approval | 20% | Buyer sign-off on samples |
| Pack and ship | 10% | Final balance before release |
The milestone payment logic is simple: never pay for a stage you cannot see. Photos, sample parts and dimensional reports are cheap to provide and hard to fake consistently — a shop that resists documenting milestones is telling the buyer something. For production goods the equivalent control sits in the sample approval process guide, which shows how first-article sign-off should gate the balance payment.
Ownership: The Clause That Matters Most
Payment structure protects cash; ownership protects the asset. Every tooling agreement should state that the mould is the buyer's property from the first payment, with the supplier holding it as bailee for production only. Practical reinforcements: the tool physically marked with the buyer's part number and "property of" text, the tooling agreement kept as a separate signed document rather than a line in a purchase order, and a written no-lien commitment so the tool cannot be pledged against the factory's debts. Ownership written into the contract survives a supplier's bankruptcy far better than an email chain. Design discipline matters here too: the plastic part design guidelines show how avoiding unnecessary complexity reduces tooling cost — and therefore the cash at risk.
When the Tool Runs Late
Tooling delays are more common than tooling theft, and they hurt the same way: a launch date slips while the balance sits unpaid — the buyer's only real leverage. The defence is contractual, not relational. Put a delivery date and a late-delivery remedy in the tooling agreement, even a modest one such as supplier-borne storage or a weekly penalty, and keep the final tranche genuinely final rather than releasable against photos. If a shop misses two consecutive milestone dates without written explanation, treat it as a risk signal and pause further payments until the cause is documented.
Negotiating Tooling Payment Terms
Suppliers accept milestone schedules more readily than buyers expect, especially when the schedule is presented as standard practice rather than suspicion. Order size is the other lever: the MOQ negotiation guide shows how committed volumes buy better terms, and buyers weighing small runs should check machining alternatives before funding a tool at all. The full sourcing playbook sits in the sourcing guide category.
Related product categories
The materials and part types discussed above are grouped in our sourcing directory:
