The case for outsourcing a function often starts with a compelling comparison. A specialist contractor can provide the service for less than it costs in-house. Fixed costs become variable. Specialist scale becomes available. Management can focus on the core business. These benefits can be real, and businesses that never test whether functions belong inside can become weighed down by work they no longer need to do themselves.
The comparison is usually uneven, though. The cost of the in-house function is documented to the dollar. Its output is documented only as far as someone once had reason to describe it: a schedule, a service standard, some volumes. Everything nobody described enters the comparison at zero. And the contractor’s quote covers only the contracted service, not the cost of selecting, transitioning, overseeing, changing and eventually leaving the arrangement.
This article explains the full lifecycle cost of outsourcing a function and, more subtly, the unwritten work in-house teams do that stops the day a contract replaces them. It sets out a practical way to find and value that work before deciding, and to design arrangements that keep what matters.
The full lifecycle cost
An outsourcing decision should be assessed across its whole life, not at the moment a quote is approved. Five phases matter:
| Phase | Costs and risks |
|---|---|
| Enter | Selecting a supplier, negotiating, documenting the work, transferring knowledge, data and systems, managing staff changes |
| Operate | Supplier fees, plus the internal people and time needed to define requirements, review reports, challenge performance and manage the relationship |
| Change | Variations, extra work, demand changes, technology changes and renegotiation |
| Fail | What happens if the supplier underperforms or gets into financial trouble |
| Exit | Moving to another supplier or bringing the work back: data, assets, knowledge, staff and continuity |
Common misreadings
- The supplier’s fee is the cost. The business still needs people and systems to specify, monitor, approve changes, handle incidents and make commercial decisions.
- Transition is a one-off implementation task. Transition often decides whether the whole arrangement works. Process knowledge, data, responsibilities and continuity all have to move without being lost.
- The contract removes uncertainty. Contracts structure uncertainty. Demand changes, new needs arise and service levels need interpretation.
- Exit can be sorted out later. When exit becomes urgent, the business usually has the least leverage. Plan it before dependence becomes entrenched.
Retained capability is a cost and an asset
Keeping some internal expertise to oversee the supplier reduces the calculated saving. But that retained capability is often what keeps the arrangement governable. Remove too much and the business cannot judge whether the supplier is performing, cannot challenge its advice and cannot specify future work well.
Change can shift pricing power
When the work is first tendered, competition keeps prices honest. After transition, the incumbent holds process knowledge, systems access and history, and additional work is priced in a much less competitive environment. Distinguish the initial competitive price from the likely cost of changes and extra work over the life of the arrangement.
Several suppliers need an integrator
When several outsourced suppliers deliver connected services, such as IT infrastructure, software support and telecommunications, or maintenance, cleaning and security across one site, each can perform its own contract while the end-to-end service fails. The business remains accountable for the gaps between them. Someone must own the whole service: defining how the suppliers’ work connects, resolving problems that cross contract boundaries and measuring the outcome the business actually needs. That integration role is a real cost, and it belongs in the business case.
Be exit-ready from the start
An outsourcing arrangement is only as flexible as it is easy to leave. From the beginning, make sure the business owns its data and can obtain it in a usable form, that equipment and asset records are kept current, that procedures and configurations are documented, that the contract includes obligations to help hand over to a new provider, and that someone inside the business understands enough to manage a transition. These steps cost little during a healthy relationship and are hard to arrange once it has broken down.
The work nobody wrote down
The subtler cost is the work that stops when a function moves outside.
Inside a business, a great deal of useful work is done by people who are already there, on the way to something else, at no extra cost. A maintenance technician mentions that a bearing sounds wrong before it fails. A bookkeeper notices that a regular customer’s payments have slowed. A storeperson knows why a particular item is kept in a particular place. An in-house adviser says, during a meeting, that a sentence in a proposal creates a liability. None of this appears in any job description, so it never enters a ledger, is never valued and is never specified.
A contract is a complete statement of what will be paid for. For the supplier, anything outside it is cost without revenue. That is not bad faith. A well-run supplier does what it is paid to do and does not fund from its own margin work the customer did not think worth naming. The unwritten work therefore stops quietly when the boundary moves.
The loss rarely shows up as a single failure. It appears as a scattering of unrelated incidents: a fault caught too late, a complaint that escalated further than it should have, a decision made without context someone used to supply. Meanwhile the supplier meets every service level, and post-implementation reviews report success.
Specifying more does not fully solve this. Much of the value of unwritten work lies in judgement about when to act, and judgement cannot be fully specified. You can require an inspection frequency. You cannot require someone to notice. Turning free acts into priced services also tends to reduce how often they happen.
Find and value the unwritten work
Before outsourcing a significant function, run a short unwritten work inventory:
- Observe, do not survey. For several weeks, spend time with the people who do the work and record every act no document requires: what triggered it, who started it, who benefited and what would have happened otherwise. Managers’ lists usually contain only work already specified.
- Classify it. Most unwritten work falls into six types:
| Type | What replaces it after outsourcing |
|---|---|
| Early warning | A later, larger problem that seems to have another cause |
| Problem solving across teams | Escalation, or problems nobody owns |
| Informal advice | Paid advice, or none |
| Memory of why things are as they are | Rediscovery, paid for repeatedly |
| Extra care beyond the minimum | Work to the contractual minimum |
| Relationship maintenance | Formal complaints and the cost of handling them |
- Estimate its value by avoided consequence. For each item, estimate what the consequence would have cost without it and how often it happens. The figures will be rough. Their purpose is to exist.
- Decide each category. Either specify it in the contract and accept the cost, retain the capability that performs it, or accept the loss consciously, with an owner and a review date.
- Test the case. If the estimated value of the unwritten work exceeds the projected saving, rethink the proposal.
- Check again after a year. Ask what still happens, who does it now and what the accepted losses have cost.
Design arrangements that keep judgement cheap
Where unwritten work matters, design the arrangement so judgement remains free at the point of use: a retainer rather than hourly billing for advice, a pre-paid pool of hours for small requests, an obligation to report anything the supplier notices without penalty, or a small retained in-house role alongside the contractor. Often the barrier to useful work is not the money but the transaction needed to request it.
Use scenarios, not a single saving
Present the business case with several scenarios: a base case, a downside case with slower transition, more internal oversight or more changes, and an exit case showing the cost of moving to another supplier or bringing the work back. The aim is not precision but to show which assumptions decide whether outsourcing is worthwhile.
A worked example
This is an illustration. A manufacturer is considering outsourcing maintenance. Two in-house technicians cost about $210,000 a year including on-costs. A contractor quotes about $150,000 a year for planned maintenance and four-hour breakdown response, a headline saving of about $60,000.
The owner builds the full picture. Overseeing the contractor would take about a fifth of the operations manager’s time, about $25,000 a year. Small modifications and improvement jobs, currently done by the technicians between tasks, would become billable variations, estimated at about $20,000 a year. Documenting equipment history and transitioning the work would cost about $15,000, or about $5,000 a year over three years. The saving shrinks to about $10,000 a year.
A four-week unwritten work inventory finds that the technicians also help operators with changeovers, give early warning of wear on critical machines, answer troubleshooting calls during shifts, train new operators on basic care and manage the spare parts store. The owner estimates that early warnings alone avoid breakdowns worth about $30,000 a year, and changeover help saves about $18,000 of lost production time. The unwritten work is worth far more than the remaining saving.
The owner chooses a different arrangement: keep one technician in-house, who continues the unwritten work and holds the equipment knowledge, and contract out planned maintenance on specialised equipment and after-hours breakdown cover. The combined cost is about $175,000 a year, about $105,000 for the technician and $70,000 for the contractor, a saving of about $35,000 a year while keeping the work that mattered.
How this applies to a small Australian business
Small businesses often outsource bookkeeping, IT, maintenance, cleaning, logistics and specialist trades. Practical steps:
- Count the full lifecycle cost, not just the quote.
- Keep enough internal capability to oversee and challenge the supplier.
- Ask the people doing the work what they do that nobody wrote down.
- Decide deliberately whether to specify, retain or accept the loss of each type of unwritten work.
- Plan exit from the start: data ownership, documentation and handover obligations.
- Check employment obligations if staff roles change, including consultation and redundancy requirements under the Fair Work Act and any applicable award or agreement. Take advice.
- Review the arrangement after a year.
The articles on make or buy, from making to orchestrating and key-person dependence cover related decisions.
Signals worth watching
- Outsourcing savings reported without the retained internal costs.
- Rapid growth in variation charges.
- Oversight effort growing beyond what was planned.
- Problems first reported by customers rather than by the people doing the work.
- Excellent contract compliance while satisfaction falls.
- Fewer requests for advice after a service moves to hourly billing.
- Nobody left who can explain why something is done the way it is.
Common mistakes
- Comparing in-house cost with a supplier quote alone.
- Removing all internal expertise.
- Ignoring the cost of changes and extra work.
- Leaving exit planning until it is urgent.
- Valuing unwritten work at zero.
- Trying to specify judgement rather than retaining it.
Frequently asked questions
Does this mean outsourcing is usually a mistake? No. Many functions are better done by specialists. The point is to compare the full picture and keep what the business actually needs.
How long should an unwritten work inventory take? A few weeks of part-time observation is usually enough to reveal the main patterns for a small function.
What if we have already outsourced a function? Ask the people who remain what stopped happening, look for incidents that once would have been caught, and consider adding a retained role, a reporting obligation or a retainer to restore what matters.
How do we compare a supplier quote fairly with in-house cost? Include on both sides everything that genuinely changes: the supplier’s fees plus internal oversight, transition and expected variations on one side; wages, on-costs, equipment and the value of unwritten work on the other. Leave out costs that stay the same either way.
Can contracts capture early warnings? Partly, through obligations to report observations without penalty. But much depends on the supplier’s people caring and being free to speak up, so relationships and incentives matter as much as wording.
Questions to ask
- What costs does the supplier’s quote leave out?
- How much internal oversight will we need, and who will provide it?
- How will extra work be priced once the supplier is established?
- What would we need to continue the service if the contract ended in six months?
- What does this function do that nobody has written down, and what is it worth?
- Who will still be able to explain why things are done this way in five years?
Bringing it together
Outsourcing should be judged by the economics of the whole arrangement, not the gap between an internal cost and a quote. Count entry, operation, change, failure and exit, keep enough internal capability to stay in control, and before moving any function, find the work nobody wrote down. Decide deliberately whether to specify it, retain it or accept its loss. A business can outsource a great deal and remain strong. What it cannot do is outsource the parts of itself nobody described and then be surprised they are gone.
Source: KEVOS notes, drawing on general practice in outsourcing and procurement management. Examples and figures in this article are illustrations. This article is general information, not legal or employment advice.
