• Personal Income Tax (Mandatory 2D)

  
  

• Corporate Excise Tax (1D & 2D)

  
  

• Fiduciary & Partnership (1D Only)

  
  

• 2011 Personal Income Tax Software Developer's Guide - Part 1 

  
  

• 2011 Personal Income Tax Software Developer's Guide - Part 2  file size 3MB

  
  

• 2011 Form 2 & Form 3 Software Developer's Guide 

  
  

• 2011 Corporate Excise Software Developer's Guide - Part 1 

  
  

• 2011 Corporate Excise Software Developer's Guide - Part 2  file size 1MB

  
  

• 2011 Corporate Excise Software Developer's Guide - Part 3  file size 1MB

  
  

• 2011 Corporate Excise Software Developer's Guide - Part 4  file size 1MB

  
  

• 2011 Payment Voucher and Extensions Software Developer's Guide  

  
  

• 2011 Tax Payment and Extension Forms  

  
  

• 2011 Handbook for Reproduction of Department of Revenue Forms 

  
  

• 2010 Payment Voucher and Extensions Software Developer's Guide  file size 1MB

  Updated 10/26/10
  
  

• 2010 Tax Year Payment Voucher and Extension Forms 

  Revised September 30 2010
  
  

• 2010 Handbook for Reproduction of Department of Revenue Forms 

  
  

• 2009 Handbook for Reproduction of Department of Revenue Forms 

  
  

• 2009 Payment Voucher and Extensions Software Developer's Guide 

  Updated 10/23/09
  
  

• 2009 Tax Year Payment Voucher and Extension Forms 

  
  

• Prior Year Record Layouts, Tax Grids and Test Cases