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Form W-9 Request for Taxpayer Identification Number and Certification Form W-9 gives your name, address and taxpayer ID (SSN or EIN) to a business that pays you, such as a client, bank or platform.
  • Version: Rev. March 2024
Fill in Form W-4 Employee's Withholding Certificate Form W-4 tells your employer how much federal income tax to withhold from your pay.
  • Version: 2026
Fill in Form W-4P Withholding Certificate for Periodic Pension or Annuity Payments Form W-4P sets how much federal tax is withheld from regular pension or annuity payments.
  • Version: 2026
Fill in Form 4506-C IVES Request for Transcript of Tax Return Form 4506-C lets a lender or other company get a transcript of your tax return from the IRS, usually for a mortgage or loan.
  • Version: Rev. 10-2022
Fill in Form SS-4 Application for Employer Identification Number (EIN) Form SS-4 is the application for an Employer Identification Number (EIN).
  • Version: Rev. December 2025
Fill in Form 8822 Change of Address Moved house? Form 8822 tells the IRS your new home address so refunds and letters reach you.
  • Version: Rev. February 2021
Fill in Form 9465 Installment Agreement Request Can't pay your tax bill in full? Form 9465 asks the IRS for a monthly installment plan.
  • Version: Rev. September 2020
Fill in Form 4868 Application for Automatic Extension of Time to File Form 4868 gives you an automatic six-month extension to file your individual tax return.
  • Version: 2025 tax year
Fill in Form 8821 Tax Information Authorization Form 8821 lets someone you choose, such as an accountant, lender or family member, receive your tax information from the IRS.
  • Version: Rev. January 2021
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