What is the difference between contingency and management reserve?

Who controls the money and what it covers. Contingency is for known-unknowns: risks that live inside the current scope and can be identified, even if it is not certain they will happen, such as a differing site condition or a design detail that may need rework. The project team controls it and draws it down as those risks retire. Management reserve sits above the baseline for unknown-unknowns, scope nobody can yet see, and the owner or sponsor releases it deliberately, usually by a formal transfer into the budget. Spending one as if it were the other hides who is actually absorbing a change, which is why disciplined projects keep the two pots separate.

How much contingency should a project carry?

It depends on how much risk is still unretired, which changes as the job matures. Early, with design incomplete and many unknowns, a larger contingency is justified; as the design firms up and risks retire, the required contingency falls. Typical figures range from a few percent on a well-defined, low-risk build to double digits on a complex or fast-tracked one, but a single rule-of-thumb number is less useful than tying the balance to the live risk register. The real test is not the starting percentage but whether the remaining contingency still covers the remaining risk at each stage of the job.

What does it mean when contingency is barely touched late in a job?

It is rarely the good news it looks like. A contingency still near full late in a project usually means one of two things: either the risks it was set aside for genuinely never materialized, which is possible but uncommon on a complex job, or, more often, real overruns are being quietly absorbed on other budget lines while the contingency sits untouched. In the second case the untouched contingency is masking an overrun rather than proving the job is healthy. The healthy pattern is a contingency that burns down roughly in step with progress as identified risks retire, not one that stays full while trouble hides elsewhere.

Construction Glossary · Change Management

ConstructionContingency

It is a budget, not a slush fund. Contingency is earmarked money for the risks you can name but cannot yet price, and it should burn down with the risk, not the calendar.

Definition

Contingency is money set aside within the project budget to cover the cost of risks that are possible but not yet realized inside the current scope, the known-unknowns. The project team draws it down as those risks retire. It is distinct from management reserve, which the owner holds for scope that cannot yet be seen. Disciplined contingency burns down in step with the risk it covers, not the calendar.

Burn with the risk, not the calendar

Our $12.0M project carries a $600K contingency. A healthy burn tracks progress, dropping at each approved change as the risk it covered retires, and still leaves a balance to cover the risk that remains.

Two pots, not one

Contingency and management reserve are often lumped together. They answer to different people and cover different kinds of risk.

	Contingency	Management reserve
Covers	Known-unknowns inside current scope	Unknown-unknowns, scope not yet seen
Who controls it	The project team	The owner or sponsor
How it moves	Drawn down as a risk retires	Released by formal transfer into the baseline
Where it sits	Inside the budget	Above the baseline

How POD tracks the burn

POD carries contingency as its own budget line and tracks it against the approved changes that draw on it, so the drawdown is visible next to project progress rather than buried in a spreadsheet. Because POD reconciles the change-order log and can apply approved changes to the current budget, a contingency that is burning faster than the work is progressing shows up as a number, not a surprise at closeout. POD does not decide what to spend contingency on or set the percentage you carry; it keeps the balance and the drawdown honest and in view.

Contingency management guide

Frequently asked questions

Contingency is the last line, not the first

A line overrun should be covered by buy-out savings in the same category before it ever touches contingency. That buffer is where the real protection starts.

Buy-Out Back to the Glossary