Change Farm VAT via menu 4. Miscellaneous > 4.1 Codes > 4.1.7. Economic codes:
Via menu 4.1.7.1 you can add the VAT code for 21 percent.
Via menu 4.1.7.2 you can adjust the VAT code for cost types
Via menu 4.1.7.3 you can adjust the VAT code for revenue types
If you do not see any numbers in the menu options in FARM, choose:
1) Miscellaneous > Settings > General
2) Then check the box behind 'Numbers in menu'.
When you restart the FARM program, the numbers will be visible in the menus.