Insights | Capstone CFO

Contracts That Leak Margin | Capstone CFO

Written by Capstone CFO | Nov 10, 2026, 10:16:37 AM

TL;DR: Many founder-led companies run on handshake deals, old templates and terms negotiated years ago. The result is margin and cash that leak away quietly: extra work nobody bills for, payment terms the business can't afford, no annual price increase, and renewals on whatever terms the customer last accepted. Fixing the handful of terms that matter most, and putting new work on a standard template, is often one of the fastest ways to improve profit without winning a single new customer.

Where the leaks usually are

TermWhat goes wrongEffect
ScopeWork described loosely; extras done without a change orderUnbilled work and falling margin
Price increasesNo annual adjustment clause; prices unchanged for yearsMargin shrinks as wages and costs rise
Payment termsNet 45 or net 60, no deposits, no late feesCash tied up in receivables, and more borrowing
Billing triggersInvoicing at the end of a project instead of by milestoneLong gaps between doing the work and getting paid
Pass-through costsTravel, materials, software or media costs absorbedA direct hit to gross margin
Renewal and terminationAutomatic renewal at old prices; short notice periodsMissed increases, and revenue that can disappear quickly

How much it can cost (illustrative)

Consider a services company with $8 million of revenue and a 30% gross margin, or $2.4 million of gross profit.

LeakAssumptionAnnual impact
Unbilled scope creepExtra work worth 3% of revenue, never billedAbout $240,000 of lost gross profit
No annual price increaseCosts up 4%, prices flatAbout $224,000 of margin erosion
Absorbed pass-through costs1% of revenueAbout $80,000 of lost gross profit
Slow payment termsCollecting in 60 days instead of 30About $660,000 more cash tied up in receivables

Together, the first three cost more than $540,000 a year, nearly a quarter of gross profit, and the fourth ties up cash the business could use to grow or to avoid borrowing. All figures are illustrative; the point is that small, quiet leaks add up.

Find the leaks first

Before changing any contract, look at the numbers:

  • Margin by customer and by contract, not just by service line
  • Hours or costs delivered against what was quoted, to measure scope creep
  • When each customer last had a price increase
  • Days to collect by customer, and who pays late repeatedly
  • Pass-through costs that were incurred but not billed

The analysis usually shows a few accounts where most of the leakage sits. Those are where to start.

Fixing terms with existing customers

  1. Prioritize. Start with the largest accounts that have the weakest terms.
  2. Fix scope before price. Clarify what's included, and agree on how extra work is requested, approved and billed.
  3. Raise prices with notice and a reason. Tie increases to the value you deliver and to real cost changes, and give customers time to plan.
  4. Use renewals. A renewal is the natural moment to update payment terms, price adjustments and notice periods.
  5. Grandfather selectively. Protect strategic relationships, but put an end date on the old terms.

Most customers accept reasonable, well-explained changes. The ones that don't are often the least profitable relationships anyway, and the margin analysis will tell you whether that's true.

A contract checklist for new work

  • Clear scope of services and deliverables, including what's excluded
  • A change-order process for extra work, with pricing
  • An annual price adjustment, either a fixed percentage or tied to an index
  • Payment terms that fit your cash cycle, with deposits or milestone billing for project work
  • Late payment terms and the right to pause work on overdue accounts
  • Which costs are reimbursable or passed through, and any markup
  • Renewal terms that include a price review, and notice periods that give you time to adjust
  • Liability limits and other legal terms reviewed by your attorney

This article is general information, not legal advice. Have your attorney review your contract templates and any changes to existing agreements.

Why buyers care

In diligence, buyers read your largest contracts. Clear scope, annual increases, healthy payment terms and renewal protections make revenue look durable and margin defensible. Loose terms raise questions about whether revenue will hold, and buyers price that risk in. Strengthening contract terms was part of how one founder-led firm prepared for its sale; see our professional services firm exit case study.

How Capstone CFO helps

We find where contracts are costing you, then help you fix them without damaging the relationships that matter. We:

  • Analyze margin by customer, contract and service line to pinpoint the leaks
  • Model the effect of price increases and new terms before you talk to customers
  • Build standard pricing, scope and payment terms with you, and work alongside your attorney on the template
  • Set up billing triggers, deposits and collections processes that bring cash in sooner
  • Track price increases, collections and margin by customer in the monthly reporting package
  • Bring the same discipline to your contracts ahead of a sale or a raise

Frequently asked questions

How much should we raise prices each year?

At least enough to cover your cost increases, especially wages, and more where the value you deliver has grown. An annual adjustment clause in your contracts makes the increase routine instead of a negotiation every year.

Won't tighter payment terms push customers away?

Rarely, when the change is explained and applied consistently. Many customers already pay other vendors on 30-day terms, and deposits or milestone billing are standard for project work. Start with new customers and renewals.

What if our biggest customer has the worst terms?

That's common, and it is a concentration risk as well as a margin issue. Quantify what the terms cost you, then plan the conversation around the renewal. Sometimes the right answer is to keep the terms and price for them; sometimes it is to reduce your dependence on that customer.

Related reading

Want to know what your contracts are really costing you? Let's meet to discuss it. See our Strategic CFO Services or book a call with our CFO team.