You can check the version of Sage 50 Accounts data by checking the size of the setup.dta file.

1. Browse and open the relevant Accdata directory.
   
   By default this would be:
   
   • v32 - C:\ProgramData\Sage\Accounts\2026\Company.000\ACCDATA
   • v31 - C:\ProgramData\Sage\Accounts\2025\Company.000\ACCDATA
   • v30 - C:\ProgramData\Sage\Accounts\2024\Company.000\ACCDATA
   • v29 - C:\ProgramData\Sage\Accounts\2023\Company.000\ACCDATA
   • v28 - C:\ProgramData\Sage\Accounts\2022\Company.000\ACCDATA
   • v27 - C:\ProgramData\Sage\Accounts\2021\Company.000\ACCDATA
   • v26 - C:\ProgramData\Sage\Accounts\2020\Company.000\ACCDATA
2. Right-click the file setup.dta.
3. Click Properties and check the Size in bytes.
   
   
   
   To determine the version, refer to the relevant file size:
   

    

   Size	Version
   33,086 bytes	v32
   33,078 bytes	v31
   33,501 bytes	v30
   32,606 bytes	v29
   24,654 bytes	v28
   23,618 bytes	v27
   22,836 bytes	v26