When a Supplier Fails: The Concentration Nobody Measures | HL Hunt
When a Supplier Fails: The Concentration Nobody Measures
Per our concentration analysis, every business owner can name the customer whose departure would hurt most. Almost nobody can name the supplier they couldn't replace — which is the same risk pointing the other way, and in some respects a worse one, because a customer leaving costs you revenue while a supplier failing can stop you trading at all. It also carries an exposure most owners have never totalled: everything you've paid for and haven't received.
What you'll learn
Measuring the right thing
The standard measure is spend, and spend is the wrong measure.
| Supplier | Annual spend | Weeks to replace | Real exposure |
|---|---|---|---|
| A — bulk materials | $340,000 | 1 | Low |
| B — packaging | $95,000 | 3 | Moderate |
| C — specified component | $28,000 | 16 | Severe |
| D — software | $14,000 | 8 | High |
Supplier C is a twelfth of A's spend and would stop the business for four months. That inversion is typical, and it's why a spend report never surfaces the problem.
The question to ask of each supplier: if they called tomorrow and said they'd ceased trading, how many weeks until you were producing normally again?
What makes replacement slow:
- Specification or certification — anything approved by a customer or a regulator.
- Tooling held by the supplier.
- Customer approval required for a change of source.
- Integration, for anything connected to your systems.
- Long lead times in the category generally.
- Genuine scarcity — few alternatives at your volume.
Rank by weeks, not by dollars, and the list will look nothing like your payables report.
What you've already paid
The financial exposure, and the one that surprises people because nobody totals it.
Money paid in advance for goods or services not yet received generally becomes an unsecured claim if the supplier fails — which in practice means recovery is uncertain and slow at best.
What accumulates without anyone noticing:
- Deposits on orders in production.
- Prepayments made for a discount.
- Annual fees paid up front.
- Tooling you paid for that sits at their premises.
- Stock you own that's held by them.
- Work in progress you've funded.
Run the calculation: supplier by supplier, what have you paid for and not received? It takes an hour and most owners are surprised by the total — particularly because each individual decision to prepay was sensible at the time, frequently taken for a discount our terms guide would otherwise recommend pursuing.
The tooling case deserves separate attention. Tooling you've paid for and that sits at a failed supplier's premises can be difficult to recover and is frequently the thing that determines how long replacement takes — so ownership and location of tooling is worth documenting while the relationship is healthy, per our records guide.
What switching actually takes
Establish it before you need to, because every step takes longer than expected.
- Identifying candidates — days to weeks.
- Getting them to quote at your volume, which for a small buyer can take a while.
- Sampling and testing.
- Qualification, where specification matters — frequently the longest step.
- Customer approval, where your customers specify sources.
- Their onboarding of you, per our onboarding guide — which runs in the other direction and is equally slow.
- First delivery, at their lead time rather than your old one.
- Terms, which start unfavourable with a new counterparty.
Step eight is the cash consequence nobody plans for. A new supplier will want payment up front or on short terms until you've established a record — so a supplier failure produces a working capital demand at the same moment as the disruption, which per our cash cycle analysis is the worst combination available.
And per our correlation analysis, if the supplier failed because of a sector-wide problem, alternatives may be constrained at the same time — so the replacement timeline assumes a supplier-specific failure and may be optimistic.
Signs that appear early
Behaviour changes months before a failure, and the signals are visible if anyone is watching.
- Requests to shorten terms or pay in advance. A supplier that previously offered thirty days asking for payment up front is managing a cash problem — and per our statements analysis, that's the same pressure a lender would see in their accounts.
- Lengthening lead times with unconvincing explanations.
- Quality decline or substitutions, which frequently indicate they're buying cheaper inputs.
- Staff departures, particularly the people you dealt with.
- Slower responses and fewer proactive contacts.
- Invoicing changes — a new entity, a different bank account, altered references. Verify these per our payment fraud guide, and note separately that a genuine entity change can indicate restructuring.
- Their own suppliers chasing you for information, which happens more than you'd think.
- Industry talk, which is frequently early and frequently ignored.
Each is individually ordinary. Several appearing together in a supplier you can't replace is worth acting on — and acting means starting to qualify an alternative, not confronting them.
For your most critical suppliers, a commercial credit report is cheap and worth pulling annually — per our commercial file guide, judgments, liens, and deteriorating payment behaviour show up there before they show up in your relationship.
The request to prepay
A supplier under pressure asks for payment in advance, which increases your unsecured exposure to them at exactly the moment their failure becomes more likely. That request is a signal and a risk at the same time — and agreeing to it converts a supply problem into a financial one.
What a second source costs
The comparison that makes the decision straightforward for anything hard to replace.
The cost of a second source:
- A price premium on a smaller volume with each supplier.
- Qualification cost, once.
- Administrative effort of two relationships.
- Possible loss of volume discounts at the primary.
The cost of not having one: a disruption whose length is set by how long qualification takes — and qualification cannot be compressed by urgency.
How to do it without doubling your costs:
- Qualify without ordering heavily. Get approved, sample, and place small regular orders to keep the relationship live.
- Split by proportion — eighty-twenty keeps the volume discount largely intact and keeps the second source real.
- Qualify only what's slow to replace. Commodities don't need it.
- Where a second source is genuinely impossible, hold more stock instead — inventory is the alternative to redundancy and it's a cash cost you can size.
The second point is the practical answer and it's why "single source for the discount" is frequently a false economy: the discount is on the whole volume and the redundancy costs only the margin on the smaller share.
Reducing the exposure
Negotiable while the relationship is healthy and not afterwards.
- Reduce what you prepay to anyone you can't replace — the discount for prepayment is a price you're paying for unsecured exposure, and it should be priced that way.
- Document tooling ownership and consider whether it can be held elsewhere.
- Establish where your stock sits and what happens to it.
- Ask about their supply chain, since their concentration is your concentration one step removed.
- Get the contract right on notice periods, transition assistance, and what happens on insolvency — per our agreements guide, these clauses are negotiable at signing and worthless afterwards.
- Keep specifications and drawings yourself rather than relying on the supplier holding them, which is the single cheapest thing on this list.
That last point determines the replacement timeline more than anything else. A business that holds its own specifications can brief an alternative supplier immediately; one relying on the failed supplier's documentation is reverse-engineering under pressure.
If one fails
- Establish what's in progress — orders placed, work funded, stock held.
- Find out who's handling it and register your claim, taking advice on anything substantial.
- Try to recover your property — tooling, stock, documentation — which is time-sensitive.
- Contact alternatives immediately, in parallel rather than sequentially.
- Tell your customers before they discover it, per our disruption guide.
- Forecast the cash impact, including the new supplier's terms.
- Talk to your lender early if the gap is material.
- Check whether other suppliers are affected, if the cause was sector-wide.
Item three is urgent and frequently forgotten. Property of yours held at a failed supplier's premises becomes harder to recover as time passes and as an insolvency process progresses — so establishing what's yours and asserting it early matters more than the claim for money.
And item five is the one that protects the business afterwards. A customer who learns from you that supply is disrupted and hears a plan is a customer who waits; one who discovers a missed delivery is one who calls a competitor.
Making it a habit
An annual exercise, an hour:
- List suppliers by weeks-to-replace, not by spend.
- Total prepaid exposure to each.
- Check that a second source exists for anything above your tolerance.
- Pull a commercial report on the critical few.
- Confirm you hold your own specifications.
- Review the contract terms that matter on failure.
- Note anything that's changed in how a key supplier behaves.
Step one is the whole exercise and it's the step that produces the surprise. Most owners, asked to rank by replaceability rather than by spend, identify a dependency they'd never considered and could reduce in a quarter.
Better terms reduce what you have at risk
Suppliers offer terms based on your commercial file, and terms rather than prepayment is what keeps your unsecured exposure low. The HL Hunt Business Credit Builder reports tradelines to Dun & Bradstreet, Experian Business, and Equifax Business with monitoring included, so you can negotiate from a file that supports it.
Frequently asked questions
By weeks to replace rather than by spend. The supplier that would stop your business is frequently a small fraction of your largest.
They generally become an unsecured claim, with recovery uncertain and slow. Most owners have never totalled what they've paid for and not received.
Requests to shorten terms or prepay, lengthening lead times, quality decline, staff departures, and invoicing changes. Several together in a critical supplier is worth acting on.
For anything you can't quickly replace, almost always — a small recurring premium against a disruption whose length urgency can't compress.
Key takeaways
- Rank suppliers by weeks to replace, not by spend — the list looks nothing like your payables report.
- Total what you've prepaid to each supplier; it accumulates from individually sensible decisions.
- A new supplier wants payment up front, so a failure creates a working capital demand alongside the disruption.
- A request to prepay from a struggling supplier is a warning sign and a risk increase at once.
- Split eighty-twenty — the discount is on the whole volume, the redundancy costs only the margin on the smaller share.
- Hold your own specifications; it determines the replacement timeline more than anything else and costs nothing.
This guide is educational and does not constitute legal, accounting, or financial advice. Worked figures are stylized illustrations. The treatment of deposits, prepayments, tooling, and stock held by an insolvent supplier depends on the insolvency process, the contract, and applicable law, and recovery of property is time-sensitive. Consult a qualified attorney promptly if a supplier fails while holding your money or property.