Look up IRS in Wiktionary, the free dictionary.

IRS is the United States Internal Revenue Service.

IRS may also refer to:

Arts and entertainment

• I.R.S. Records
• "I.R.S.", a song by Guns N' Roses on their album Chinese Democracy
• Irwin R. Schyster, wrestler Mike Rotunda
• IR$, Franco-Belgian comics

Economics

• Indian Revenue Service
• Interest rate swap
• Internal Revenue Service (Ghana)

Organisations

• Independence Republic of Sardinia, a political party, Italy
• Leibniz Institute for Research on Society and Space, of the Leibniz Association

Medicine

• Indoor residual spraying of insecticide
• Insulin receptor substrate, a ligand
• Intergroup Rhabdomyosarcoma Study Group

Transportation

• Independent rear suspension, a form of car independent suspension
• International Railway Solution, International Union of Railways leaflets
• International Railway Systems, a Romanian company
• IRS Airlines, Nigeria

Other uses

• International Rules Series, Australia–Ireland football competition
• Indian Remote Sensing satellite
• Indian Readership Survey
• Integrated reception system, for broadcast signals
• Institutionalized Riot Systems

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