IRS (disambiguation)

Template:Sister project 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

Avionics

• Inertial reference system

Economics

• Indian Revenue Service
• Interest rate swap
• Internal Revenue Service (Ghana)
• Imposto sobre Rendimentos Singulares (IRS) - Portuguese Tax over Personal Income

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, proteins involved in insulin response
  • Insulin receptor substrate 1
  • Insulin receptor substrate 2
• 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 Aero, Russia
• IRS Airlines, Nigeria
• Kirsch Municipal Airport, FAA identifier IRS

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