Prepare and file your federal income taxes online for free. Prepare and file your taxes for free with the IRS. Access your individual, business or tax pro account. Upload documents in response …

The Internal Revenue Service (IRS) is the revenue service for the United States federal government, which is responsible for collecting U.S. federal taxes and administering the …

Looking for the definition of IR? Find out what is the full meaning of IR on Abbreviations.com! 'Infrared' is one option -- get in to view more @ The Web's largest and most authoritative …

Looking for online definition of IR or what IR stands for? IR is listed in the World's most authoritative dictionary of abbreviations and acronyms.

24 definitions of IR. Definition of IR in Business & Finance. What does IR stand for?

In summary, IR is an abbreviation that can stand for various terms depending on the context, and its interpretation can vary across different fields such as technology, business, education, …

Investor relations (IR) combines finance, communication, and marketing to effectively control the flow of information between a public company, its investors, and the company’s financial …

IR is an abbreviation for multiple concepts depending on the context. In terms of technology, it often stands for Infrared, referring to a type of light with a wavelength longer than that of red …

IR-2025-67, June 12, 2025 — The U.S. Department of the Treasury and the Internal Revenue Service today issued Notice 2025-33 extending and modifying the transition relief provided in …

The meaning of IR is iridium.