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Subcontractor

As Gaeilge: Fochonraitheoir

Also known as: Sub-contractor, Sub

Last reviewed April 2026

A supplier engaged by the main contractor to deliver a part of a public contract, named on the bid where regulations require.

A firm or individual hired by the prime contractor to deliver part of the works, supplies or services under a public contract. In Irish public works, subcontractors must be declared and (above certain thresholds) appear under the Construction Industry Register Ireland (CIRI) and Relevant Contracts Tax (RCT) regimes. The contracting authority retains rights of approval and the prime contractor remains liable for performance.

Sources and legal basis

Primary legislation and official guidance. Always confirm the current text on the source before relying on it.

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