A 30% deposit is not automatically a 30% exposure: risk also depends on what value exists, who controls it, whether it can be verified, and how much more cash becomes due before the buyer controls the goods.

A first order is priced at one round number and paid in familiar percentages. The deposit funds profiles, glass and engineering; the next milestone falls when the supplier says production is complete; the balance is due against a copy of the bill of lading. On paper, no payment looks extreme. In sequence, however, the buyer may have most of the price outside its control before configuration, finished quantity, packing or title documents have been independently reconciled. The useful question is not ‘What deposit is normal?’ It is ‘What is the maximum verified and unverified value at risk after every event, and is that amount within an authorised risk appetite?’

1. Model exposure as a timeline, not a deposit percentage

Start with every expected cash movement: deposit, design or sample fee, material call-off, production milestone, inspection release, shipment balance, freight, tax and any buyer-paid component. Put the planned date and trigger beside each amount. Then calculate cumulative cash transferred immediately after each event. Keep contract price, cash paid, bank charges and buyer-direct purchases separate so the model can be reconciled later.

Against that cash, map evidence-backed value that may be available to the buyer under the actual contract and law: accepted deliverables, identifiable project material, completed traceable units, shipment documents or other agreed security. Do not treat a supplier's internal cost statement as buyer-controlled value. Deduct disputed, non-conforming, unidentifiable, reusable-by-supplier or legally inaccessible value unless authorised advisers establish a defensible treatment.

Add contingent exposure that percentages hide: cancellation charges, unfinished replacement units, duplicated deposits on a recovery supplier, expedited freight, storage, customs or return costs. These are scenario amounts, not booked losses. Label assumptions and confidence; do not merge them into one precise-looking score.

Peak-exposure timeline worksheet
EventCumulative cash sentEvidence-backed value/controlUnverified or inaccessible amountContingent recovery costDecision state
Before deposit[amount]Due-diligence and contract evidence only[amount][scenario]Approve / redesign / hold
After deposit[amount]Named authorised work or security actually evidenced[amount][scenario]Within limit?
After material call-off[amount]Batch identity, ownership/access and supplier records[amount][scenario]Verify / hold
After production milestone[amount]Reconciled finished/WIP identities and inspection evidence[amount][scenario]Release / exception
After shipment payment[amount]Authenticated documents and actual cargo control[amount][scenario]Close / trace gap

2. Set a transaction limit before negotiating milestones

The buyer's authorised finance owner should set the maximum acceptable exposure in money, not merely a percentage of order value. Test it against the organisation's liquidity, loss tolerance, supplier concentration, project criticality, replacement lead time and ability to inspect or recover. ISO 31000 describes risk management as integrated with governance, planning and decision-making; it does not supply a numeric appetite or approve a transaction.

Separate the baseline limit from exception capacity. A first order with unresolved entity, beneficiary, capacity or product evidence should not inherit the same limit as an established, repeatedly verified route without an explicit decision. Conversely, a long relationship is not security: refresh identity, bank instruction, adverse information and project-specific capability before material payment.

Define stop rules in advance. Examples include a beneficiary or contracting-entity change, missed evidence gate, unapproved substitution, overdue corrective action, unexplained schedule movement, refusal of agreed access, or cumulative cash exceeding the authorised curve. A stop rule places the next transfer on hold; it does not itself declare fraud, breach or cancellation.

Risk-cap approval record
InputCurrent evidenceUnknown/adverse caseAuthority and decision
Entity and beneficiaryOfficial identity, contract and independently verified account relationshipMismatch, third-party route or stale recordCompliance/legal/finance
Supplier financial/capability evidenceDated reports, references and project-specific capacity routeUnverified or deteriorating evidenceCredit/procurement authority
Technical maturityReleased configurations and closed high-risk inputsMajor choices openTechnical authority
Verification accessInspection stages, population access and record rightsPacked or concealed before observationQuality/procurement authority
Replacement consequenceQualified alternatives, programme and cost scenarioSingle source or project-critical delayProject/finance authority
Maximum exposureApproved currency amount and validityProposed curve exceeds capNamed delegated approver

3. Redesign payment events around inspectable value

Work backwards from the cap. Divide the order into technically independent release groups where possible: sample, standard windows, bespoke entrances, separate glass or later phases. Confirm shared dependencies such as one finish batch, common extrusion, testing or container consolidation before assuming that a tranche can stand alone.

Make each payment trigger objective and obtainable: approved drawing register, named material batch received and accepted, first-off disposition, reconciled completed population, closed critical NCRs, packing release, authenticated transport document or another contract-defined event. State who produces the evidence, who reviews it, how partial completion is valued and what remains held. Calendar dates and supplier invoices can schedule review; they do not prove the event.

Consider risk-transfer tools only through qualified advisers and actual providers. Documentary credits, standby credits, demand guarantees, escrow arrangements, trade-credit insurance and supplier-finance structures address different risks and create fees, conditions, documentary duties and counterparty exposure. ICC's URDG 758 governs a demand guarantee only when incorporated; it does not make every guarantee callable or appropriate.

Evidence-linked milestone design
MilestoneObjective evidence packageValue basisHold/exception rulePost-payment exposure
Design/sampleControlled deliverable and authorised dispositionAgreed fee or identified allocationUnresolved critical input[calculate]
MaterialApproved BOM, supplier receipt, batch/status and traceabilityVerified committed amount; recoverability kept separateWrong/unidentified/held material[calculate]
First-offSelected identity, inspection record and signed release/holdAuthorised tranche onlyCritical NCR or configuration gap[calculate]
ProductionReconciled completed population and remaining WIPDefined unit/line-item schedulePopulation or quantity mismatch[calculate]
ShipmentPacking/loading release and authenticated required documentsContract-defined balanceDocument/cargo identity gap[calculate]

4. Operate the cap as a live control until delivery closes

Before every transfer, refresh the exposure model with actual payments, approved changes, material status, production evidence, unresolved NCRs and shipment state. Verify beneficiary instructions through the independent callback control. Two authorised reviewers should reconcile the milestone evidence and cumulative curve; separating vendor-master change, milestone approval and bank release reduces the chance that one compromised channel controls the transaction.

When evidence is partial, do not automatically pay the corresponding percentage of a supplier's progress claim. Identify the inspectable population, accepted quantity, exceptions and valuation rule. Record a proportionate authorised release, retain the balance or escalate. Inspection is sampling or observation within a scope; it is not insurance, title proof or a solvency assessment.

Track actual peak exposure and exceptions after shipment, receipt and defect closure. Record what reduced exposure—verified goods, document control, refund, credit or other authorised event—rather than declaring it ended when funds left the bank. Use the first order's evidence to redesign later limits, but refresh the supplier and transaction facts each time.

FAQ

What is a safe deposit percentage for a first window order?

There is no universal safe percentage. Model cumulative cash, evidence-backed value, access, recovery scenarios and the buyer's authorised monetary risk limit for the actual transaction.

Does a factory inspection reduce prepayment exposure to zero?

No. It may improve evidence about an observed scope. It does not prove uninspected goods, title, solvency, future completion, shipment or recovery.

Can material at the factory be counted as security?

Only after legal, identity, ownership, access, condition, reuse and enforceability questions are reviewed. A label or supplier allocation alone is not buyer-controlled security.

Should every first order be split into several shipments?

Not automatically. Smaller tranches may lower peak exposure but can raise cost, handling, colour/batch variation and coordination risk. Model both routes.

Is a bank guarantee equivalent to cash protection?

No. The issuer, text, governing rules, expiry, demand conditions, authenticity and enforcement context matter. Obtain bank and legal review before relying on it.

When should the next payment be held?

Use pre-agreed triggers such as an exceeded cap, missing gate evidence, changed beneficiary, unresolved critical nonconformity or unauthorised substitution. A hold is an escalation state, not a legal verdict.

Continue the project review

Connect this guide with the proposed window and door systems, then review how Cavorlen approaches manufacturing and quality control. When your schedule is ready, send it through the project review form.

Official sources used

ISO — ISO 31000 Risk management guidelines ↗ICC — Uniform Rules for Demand Guarantees URDG 758 ↗UNCITRAL — CISG official text and status materials ↗FATF — Guidance on beneficial ownership of legal persons ↗ICC — UCP 600 official rules publication ↗

Related buyer guides

Editorial boundary

This article is general procurement, cash-flow and risk-control education, not banking, credit, insurance, legal, accounting, tax, sanctions, insolvency, investment or financial advice. It does not recommend a deposit percentage, payment instrument, guarantee, escrow provider, credit limit, supplier, jurisdiction or risk score; value work in progress; determine title, security, recoverability, breach or insolvency priority; or promise that inspection or documents prevent loss. It states no Cavorlen price, payment term, capacity, supplier relationship or policy. The signed contract, applicable law, actual supplier and bank evidence, and authorised finance, legal, insurance, tax, compliance and technical professionals must determine the transaction controls and approved exposure.