IRS Forms are official documents used by taxpayers to report their income, expenses, and other financial information to the Internal Revenue Service (IRS) in the United States. These forms help the IRS assess how much tax an individual or business owes or if they are eligible for a refund. Common forms include Form 1040 for individual income tax returns and Form W-2 for reporting wages. Each form has specific instructions and requirements, making it essential for taxpayers to choose the correct one based on their financial situation. Filing the appropriate IRS Forms accurately and on time is crucial to avoid penalties and ensure compliance with tax laws.