Warning: Payroll System supports filing until the IRS and SSA BSO system year changeover in early December. After the system changeover, all files must be created with the current specifications used in Payroll System (for the current year)

Juliana Caiazzo Updated by Juliana Caiazzo

You must always use the most recent year available of the W2/1099 E-File Add-On. If you try to use a previous year, you will receive a warning message similar to this:

  • You must use the current year's W2/1099 E-File Add-on software to E-File prior year's returns.
  • The current 2025 Payroll System W2/1099 E-File Add-on module supports current year filing as well as the prior years 2016 through 2024.
  • The W2/1099 E-File Add-on software becomes obsolete in December of each year because the IRS releases new specifications each year. Users must then use the newly released W2/1099 E-File Add-on software.
  • The IRS will reject files submitted using prior year W2/1099 E-file Add-on software.
  • You cannot mix tax years within a file.
For more information on e-filing prior year W2s or 1099s, see Prior Year Electronic Filing.

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