2025 1099 and 5498 Form Instructions

Payer Data Instructions

Instructions for Form 945-A (Rev. December 2025)

2025 Instructions for Form 945 Annual Return of Withheld Federal Income Tax

Instructions for Form 945-X Adjusted Annual Return of Withheld Federal Income Tax or Claim for Refund (Rev. February 2025)

2025 Instructions for Form 945-V Payment Voucher