Contracts

What is a deductive change order?

A deductive change order is a change order that lowers the contract sum, usually because the owner deletes work, switches to a cheaper product, or takes over part of the scope.

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Plan reviews connect field conditions, drawings, and the next decisions on a job. AI-generated illustration.

Most change orders add money. A deductive change order (also called a credit change order or deduct) takes money out. The owner might cut a scope to save budget, accept a value engineering proposal, buy equipment directly, or reduce an allowance that was not fully used. The change order records the reduced scope and the credit, and the contract sum goes down.

How credits are priced

The fight is usually over how much to credit. The owner wants back what the work was worth in the bid, including markup. The contractor points out that some costs are already spent or committed. A fair credit usually looks at:

  • Direct costs actually avoided: labor, material, and subcontract amounts that will no longer be spent.
  • Costs already incurred: material bought, shop drawings prepared, or restocking fees that cannot be recovered.
  • Markup: whether overhead and profit come back with the credit. Many contracts address this; some say a reduced markup applies to deducts, some say none.
  • Effect on other work: deleting one item can make another item more expensive or less efficient.

Worked example

A GC has a $1.25 million contract for a small office building. The owner decides to delete the exterior canopy, which was in the bid at $46,000: $38,000 for the steel and glazing sub, $3,000 of GC labor, and $5,000 in GC overhead and profit. The steel sub has already produced shop drawings and ordered the anchor plates, and claims $4,200 of unrecoverable cost.

Pricing the canopy deletion
ItemAmount
Sub contract value deleted($38,000)
Less sub's costs already incurred$4,200
GC labor avoided($3,000)
GC overhead and profit (if the contract requires it returned)($5,000)
Net credit to owner($41,800)

If the contract says markup is not returned on deletions, the credit would be $36,800 instead. Either way, the GC should issue a matching deductive change order to the steel sub so the owner credit and the sub credit tie out, and the job cost budget is reduced at the same time.

Common disputes and mistakes

  1. Owner uses its own estimate of the deleted work instead of the contractor's bid breakdown. A detailed schedule of values helps.
  2. Contractor deletes work but forgets to deduct the sub, paying the sub for scope that is gone.
  3. Deleting work to give to another contractor can be a breach if the contract does not allow it. Check the changes clause and termination for convenience language.
  4. Netting adds and deducts in one change order without showing each, so nobody can audit it later.
  5. Forgetting time. A deduct can still affect the schedule if the deleted work was sequencing other trades.

Related terms

See change order request, markup, and change log. The guides how to price a change order and how to track change orders across projects cover the process. Smart Business Automator records adds and deducts in the same change order log, linked to the job budget.

Frequently asked questions

Do contractors have to give back profit on a deductive change order?

It depends on the contract. Some require full credit including overhead and profit, some apply a reduced markup to deducts, and some are silent. Read the changes clause.

Can an owner delete work and give it to another contractor?

Only if the contract allows it. Many contracts permit changes to scope, but taking work away specifically to give to someone else can be challenged depending on the language and state law.

What if work for a deleted item has already started?

The credit should be reduced by costs already incurred and unrecoverable, such as fabrication, shop drawings, or restocking fees, with backup.

Should adds and deducts be combined in one change order?

They can be, but each item should be listed separately so the net amount can be audited and matched to subcontract changes.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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