Common Contract Issues With Suppliers and How to Fix Them
The most common contract issues with suppliers cost money after signing. Prices are vague or rise without a cap, contracts renew automatically, rebates and service credits go unclaimed, documents conflict, and people buy around the contract. Most of these problems surface only when invoices drift from what was agreed.
We wrote this guide for the procurement and finance teams who manage supplier contracts once they're signed. Each issue below comes with an example and a fix, followed by a comparison of pricing structures and steps to find problems early and resolve disputes. The guide is general information about commercial terms, not legal advice. Where it mentions a law, the rule may differ in your state or under your contract, so have your counsel review the legal terms of any contract.
12 common contract issues with suppliers
| Issue | What it looks like | The fix |
|---|---|---|
| Vague or incomplete pricing | A discount off a list price the contract doesn't fix; items billed that aren't on the price file | An itemized price file and a rule for pricing anything not on it |
| Price increases with no cap or index | An annual increase at the supplier's discretion | A named index, a cap, advance notice, and decreases passed through |
| Fees and surcharges outside the price | Fuel, freight, small-order or administrative fees added to invoices | A list of allowed fees, each with its basis and limit |
| Rebates and discounts nobody checks | Volume rebates promised but never reported or paid | The calculation, the reports, the payment date and a right to audit |
| Minimum commitments that outlast demand | Paying for volume you no longer use | Minimums based on a realistic forecast, with a review point |
| Automatic renewals | The contract rolls over because a notice date passed | A register of notice deadlines, and renewal by written agreement |
| No way out | No right to end the contract except for breach | Termination for convenience with reasonable notice |
| Service levels without measures or credits | "Timely delivery" with no target or remedy | Measurable service levels, reporting and credits |
| Payment terms that don't match practice | Lost discounts or late fees because the clock starts on a different date | Terms that say what starts the clock and how disputes are handled |
| Conflicting terms | The purchase order says one thing, the supplier's acknowledgment another | An order-of-precedence clause and PO terms that limit acceptance to yours |
| Duplicate and off-contract buying | Two departments pay the same supplier different prices | One contract per supplier, with its prices loaded for every buyer |
| Nobody owns the contract | Missed renewal dates, unchecked prices, unclaimed credits | A named owner and a contract register |
Pricing and cost issues
Pricing issues cost money directly, and where they appear depends on how the price is set.
| Pricing structure | How the price works | Where it goes wrong | What to agree |
|---|---|---|---|
| Fixed price | One price for the goods or work. A firm-fixed price "is not subject to any adjustment on the basis of the contractor's cost experience" (FAR 16.202-1) | A loose scope invites change orders that reopen the price | A precise scope and a change-order process |
| Fixed price with economic price adjustment | A fixed price that can be revised up or down when specified events occur (FAR 16.203-1) | Increases with no index, cap or notice; decreases never passed on | The index, the cap, the dates and adjustment in both directions |
| Unit or catalog pricing | A price per item, often a discount off the supplier's list | The list price rises, or items fall outside the agreed list | A fixed price file and a rule for items not on it |
| Time and materials | Fixed hourly labor rates plus the actual cost of materials (FAR 16.601) | An open-ended total; the structure "provides no positive profit incentive to the contractor for cost control or labor efficiency" (FAR 16.601) | A not-to-exceed ceiling. Under federal awards, only when no other type is suitable, with a ceiling the contractor exceeds at its own risk (2 CFR 200.318(j)) |
| Cost-plus | The supplier's costs plus a fee | A fee set as a percentage of cost rewards higher costs | A fixed fee and a right to audit costs. Under federal awards, cost-plus-a-percentage-of-cost contracts aren't allowed (2 CFR 200.324(c)) |
The two federal-award rules in the table apply to recipients that follow 2 CFR 200.318 to 200.327. States and Indian tribes usually follow their own procurement policies instead (2 CFR 200.317). Our higher education procurement guide covers the other federal-award rules.
1. Vague or incomplete pricing
Pricing is vague when the contract can't tell you what an invoice line should cost. Typical gaps:
- a discount off a list price the contract doesn't fix
- "market rates" with no named source
- no price for items outside the core list
- no rule for units of measure
The price can also sit in a schedule, a quote, an email and an amendment that don't agree.
Attach an itemized price file to the contract. Add a rule for pricing anything not on it, such as the supplier's list price on a fixed date less the contract discount. Then name the document that wins when prices conflict.
2. Price increases with no cap or index (escalation clauses)
A price escalation clause lets the supplier change prices during the contract, and a weak one lets it raise them almost at will. The federal government's own clauses make a useful benchmark. FAR 16.203-1 describes three bases for adjustment: established prices of specific items, actual costs of labor or material, and cost indexes "specifically identified in the contract."
The FAR clause for standard supplies sold at catalog or market prices, FAR 52.216-2, goes further. Decreases are passed through as well as increases, and an increase needs a written request and verification. The total of all increases is capped at 10 percent of the original unit price. Within 30 days of a requested increase, the government may cancel any undelivered items it affects.
For index-based clauses, the Bureau of Labor Statistics advises: "Each index to be used should be cited specifically in the contract", by its complete title and identifying code. The BLS guide also recommends naming a successor in case the index is discontinued. On limits, the guide notes that price adjustment clauses "sometimes reference a floor, a ceiling, or both, to limit the total price adjustment during the life of the contract" (BLS, PPI Guide for Price Adjustment).
3. Fees and surcharges outside the price
Fees added to invoices can undo a negotiated price: fuel and freight surcharges, small-order fees, environmental or administrative fees, and charges for rush delivery. A contract that mentions fees only in general terms, or not at all, leaves room for a supplier to add them. List every fee the supplier may charge, how each is calculated and its limit, and state that anything not listed isn't billable.
4. Rebates and discounts nobody checks
Volume rebates, early-payment discounts and growth incentives are worth only what is actually paid. A rebate clause is hard to enforce if it doesn't say how the rebate is calculated, on which spend, when it's paid and what report the supplier sends. Write those four points into the contract with a right to audit the supplier's records, then check each payment against your own purchase data. A contract compliance audit checks past invoices for the right prices, discounts and rebates.
5. Minimum commitments that outlast demand
Minimum purchase commitments and volume tiers lower the price only if the volume materializes. When demand falls, for example after a site closes or a department changes how it works, you pay for volume you don't use or drop into a higher price tier. Base minimums on a realistic forecast, add a review point, and agree what happens if volume falls for reasons outside your control.
Term and renewal issues
6. Automatic renewals (evergreen clauses)
An evergreen clause, also called an auto-renewal clause, renews the contract for another term unless one side gives notice by a set date. The risk is the notice deadline, which can fall months before the end date and pass unnoticed. The contract then renews on its existing terms, or at the supplier's new prices if the clause allows that, before anyone has checked the market.
Some states limit these clauses. In New York, an automatic renewal in a contract for service, maintenance or repair to or for real or personal property can't be enforced against the customer, including a business customer, unless the supplier first sends a written reminder.
New York's reminder must be given 15 to 30 days before the customer's notice deadline, personally or by certified mail. Renewal periods of one month or less are excluded (New York General Obligations Law 5-903).
Don't rely on rules like this. Record every notice deadline in a contract register, set reminders well ahead of it, and where you can, make renewal depend on written agreement.
7. No way out
Some supplier contracts can be ended only for breach, and proving a breach takes time and evidence. Others allow an exit only at the end of a long term, or with a notice period longer than the problem can wait. Ask for:
- termination for convenience with reasonable notice
- a right to terminate if service levels are missed repeatedly
- an exit plan covering the return of your data and equipment, final invoices and help with the transition
Performance and payment issues
8. Service levels without measures or credits
Words like "timely", "promptly" and "best efforts" can't be measured, so they're hard to enforce. A useful service level states the measure, the target, how it's measured and reported, and the credit owed when it's missed. Common measures for suppliers of goods:
- on-time delivery against the agreed date
- ordered versus received quantities
- invoiced price versus contract price
- inspection failures and return rates
Then measure them.
9. Payment terms that don't match practice
Payment terms cause disputes when the contract and the paperwork disagree on when the clock starts, whether an early-payment discount applies, or when late fees begin. Write the terms into the contract and every purchase order, including what starts the clock, the discount and late-fee rules, and how disputed invoices are handled. Our guide to negotiating supplier payment terms covers the options and the math.
Paperwork and control issues
10. Conflicting terms between documents
A supplier relationship usually runs on several documents: a master agreement, statements of work, price schedules, purchase orders and the supplier's own quotes, acknowledgments and invoices. When they disagree, something has to decide which one wins.
An order-of-precedence clause ranks the documents. The federal version, FAR 52.215-8, resolves any inconsistency in this order:
- the schedule (excluding the specifications)
- representations and other instructions
- contract clauses
- other documents, exhibits and attachments
- the specifications
For the sale of goods, the Uniform Commercial Code decides whether a supplier's extra terms become part of the deal. As enacted in New York, additional terms in an acceptance or confirmation "are to be construed as proposals for addition to the contract." Between merchants, those terms join the contract unless (New York UCC 2-207):
- the offer expressly limits acceptance to its own terms
- the new terms materially alter it, or
- an objection to them has already been given, or is given within a reasonable time
When your purchase order is the offer, PO terms that limit acceptance to your own terms help keep them in force. So does a prompt objection to conflicting terms in the supplier's acknowledgment. The rule above is about additional terms. Terms that contradict yours, and an acknowledgment that accepts only on the supplier's own terms, raise different questions, so ask your counsel how this applies to your documents.
11. Duplicate and off-contract buying
Decentralized buying creates two problems. Departments sign their own agreements with a supplier that is already under contract, sometimes at different prices. People also buy outside any contract, without its prices and protections. Both erode the volume the main contract was priced on.
Keep one contract per supplier where you can, make it visible to everyone who buys, and load the contract prices into the purchasing system so every order carries them. Our vendor onboarding guide shows how to set that up for a new supplier.
12. Nobody owns the contract after signing
Contracts are negotiated by one team and lived with by others. Without a named owner, renewal deadlines pass, price-change notices go unread, credits go unclaimed and nobody compares invoices with the price file. Give every significant contract an owner and an entry in a contract register with its key dates: start, end, renewal notice deadline, price-adjustment dates and rebate payment dates.
Legal terms to review with your counsel
Some contract issues are legal rather than commercial. Ask your counsel to review these terms before you sign:
- Limitation of liability: the caps and exclusions, and whether they apply to both sides
- Indemnity: who pays if a third party sues, and for what
- Insurance: the types and limits the supplier must carry, and the proof it provides
- Intellectual property and data: who owns the work product, and how your data is protected and returned
- Confidentiality: what's covered and for how long
- Governing law and dispute resolution: which law applies, and whether disputes go to mediation, arbitration or court
How to find contract issues before they cost money
Most of these issues stay hidden until someone compares the contract with what actually happens. A periodic review of your key supplier contracts finds them:
- Build a contract register. List each significant contract with its owner and key dates.
- Read each key contract against the issues above. Note missing caps, open-ended fees, untracked rebates and soft service levels.
- Compare invoices with the contract. Check a sample of recent invoices against the price file, line by line.
- Check rebates, discounts and credits. Recalculate what you were owed and confirm it was paid.
- Benchmark the prices. A contract can be followed to the letter and still sit above the market. Benchmarking compares your prices and terms with the market.
- Start renewals early. Begin months before the notice deadline, so there's time to renegotiate or go to market. Our guide to the procurement cycle explains why the decision needs that lead time.
How to resolve a contract dispute with a supplier
When a disagreement with a supplier turns into a dispute, work through it in order:
- Read the whole contract, including amendments, the order-of-precedence clause, the dispute clause and any notice requirements.
- Set out your position in writing to the supplier's named contact, citing the clause and the evidence: purchase orders, delivery records, invoices and correspondence.
- Keep performing the parts of the contract that aren't in dispute, and pay undisputed amounts on time.
- Escalate in writing to the senior contacts the contract names, with a date for a response.
- Use mediation or arbitration if the contract provides for it. Bring in counsel before arbitration, or sooner if the amount is large or a contract deadline is close.
For invoice and payment disputes, our payment terms guide applies the same steps.
When renegotiation is the fix
Many of these issues are best fixed at renewal, when the supplier is competing to keep the business. When you plan to keep the supplier, renegotiation is faster and less disruptive than a bid. Dryden's contract negotiation service focuses on renegotiating with suppliers you plan to keep. We benchmark your contract and recent invoices against the market, build the negotiating position from that evidence, and negotiate pricing, commercial terms and service levels without running a full RFP.
If you don't yet know whether your prices are out of line, benchmarking comes first. If the gap is large or the supplier won't move, an RFP may be the better route. We're procurement consultants, not a law firm, so your counsel reviews the legal terms.
Common questions
What is an evergreen clause?
An evergreen clause, or automatic renewal clause, renews a contract for another term unless one party gives notice by a set date before it ends. Evergreen clauses suit services you want to keep, but they can renew prices and terms nobody has reviewed if the notice deadline passes unnoticed. Record the deadline and review the contract before it passes.
What is a price escalation clause?
A price escalation clause lets a supplier change contract prices during the term when specified events occur, such as a change in a published cost index. A well-drafted clause names the index, sets when and how often prices change, caps the total increase, requires notice, and passes decreases through as well as increases.
Can a supplier raise prices during a contract?
A supplier can usually raise prices during a contract only if the contract allows it, through an escalation or price-review clause, or if you agree to an amendment. Otherwise the agreed prices normally stand until the contract ends or renews. Check the clause's notice period, index and cap before accepting, and ask counsel if the wording is unclear.
What is contract leakage?
Contract leakage is the gap between what a supplier contract promises and what the organization actually gets. Examples include invoices above contract prices, rebates and credits never paid, fees the contract doesn't allow, and purchases made outside the contract. Comparing invoices with the contract and checking rebate payments are the usual ways to find it.
Related service: Contract Negotiation →
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