Montana retainage

Retainage in Montana — Sources checked

Who and what this applies to

Construction contracts administered by the state, its departments/agencies/subdivisions, counties, municipalities and school districts.

Thresholds and scope

Maximum 5% when the contractor performs according to the contract.

The rules

  • The public retainage cap is 5% for a contractor performing under the contract; the section defines retainage as retained funds divided by the total amount payable. Source
  • The government’s retained percentage is the maximum percentage the contractor may retain from a subcontractor. Source

Primary sources

Sources reviewed 2026-09-30. This guide covers the projects and rules stated above.

Not legal advice. This is general legal information. Laws and project facts differ; confirm the applicable requirements for your project.

Back to Montana contractor law · Retainage topic guide.

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