Open any SME's accounts payable and you'll find an archaeology of urgent decisions: forty, sixty, ninety supplier relationships, each created in a moment of need, none ever reviewed. Three stationery suppliers because three people once ordered stationery. Four software vendors doing overlapping jobs. Materials spread across five merchants "to compare prices" — except nobody compares, they just spread. The portfolio nobody designed has real costs, and consolidation — fewer, deeper, deliberately chosen relationships — is one of the more reliable margin projects an SME can run. Here's the economics, honestly, including the limits.
What the long tail actually costs
The spread's costs hide in three places. Lost leverage: volume is the currency of supplier pricing, and splitting $200k of annual spend across five merchants buys you retail treatment at all of them — consolidate it with one or two and you've created a customer worth fighting for, with the rebates, terms and priority that status carries. The admin tax: every vendor is accounts to reconcile, invoices to process, terms to track, a portal and a password and a rep — at a realistic all-in processing cost per supplier per year, a 50-vendor tail is a part-time job nobody hired for. And the quality variance: ten casual relationships produce ten casual service levels; nobody owns your outcomes, because you're nobody's significant customer. The deepest consolidation benefit is the least quantifiable — being the customer whose call gets returned during the shortage.
Run it as a project: the 80/20 review
The method fits in an afternoon plus negotiations. Pull twelve months of supplier spend, ranked. The shape is always the same: a handful of vendors carry most of the spend, then a long tail of small, fragmented relationships. Work both ends:
The head: deepen and negotiate. For each major category, ask what the spend would be worth consolidated — then take it to market once: your incumbent plus one or two genuine alternatives, quoting against your actual annual volumes, on price and the terms that matter (payment terms, delivery, account management, returns). Incumbents sharpen remarkably when shown your real consolidated number; alternatives buy the business when it's worth winning. Either way you exit with deliberate relationships and documented terms instead of accumulated habits.
The tail: cull mechanically. Set a threshold and force every below-threshold vendor to justify itself: fold the spend into a primary supplier, move it to a card/marketplace purchase (some vendors should be transactions, not relationships), or retire it. Software deserves its own pass — overlapping subscriptions are the modern tail, and we've written separately about auditing the stack. Cutting a tail of twenty vendors saves less in price than the head negotiation, but the admin recovery is permanent.
The honest limits
Consolidation has a failure mode, and it's one we've also written about: supplier concentration risk. Push everything to one vendor and you've traded admin costs for fragility — their failure, acquisition or re-pricing becomes your emergency. The design answer for genuinely critical categories is primary-plus-qualified-secondary: 70–80% of volume with the chosen partner (enough to be a customer who matters), a live trickle with the backup (enough that the account, specs and relationship exist when you need them). Other limits worth respecting: don't consolidate into a vendor on price alone if their service record is the reason you spread in the first place; keep switching costs in view (the cheapest quote with a six-week onboarding has a price the spreadsheet missed); and re-test the market every two or three years — consolidated relationships drift toward complacency on exactly the schedule you'd expect.
Make it a rhythm
The project produces the gain; a light rhythm protects it. New-vendor discipline (additions above a threshold get a "can an existing supplier do this?" check — the tail regrows otherwise), an annual scan of the spend ranking for drift, and the top-five suppliers managed like the relationships they are: a yearly conversation about volumes, terms and what's coming. The end state isn't minimal suppliers; it's chosen ones — a portfolio where every significant relationship exists on purpose, knows it matters, and prices accordingly. For most SMEs the first pass through this exercise finds low-to-mid single digits of percentage savings on addressable spend plus a permanent admin reduction — which, for an afternoon and a few negotiations, is about as honest as margin projects get.
Supplier spend is one of the cost areas our free Business Health Check looks at. Five minutes to see where the easy money is hiding.
About the author
Nick Lucock
Chief Executive Officer, Valont
Nick leads Valont's day-to-day operations across Finance, People, Operations and Growth. He writes about how the work actually gets done, the processes, systems, and tools that keep Australian SMEs compliant and growing.
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