Problem: How to remove taxation parameters of VAT Taxpayer?
Solution: Unpost all documents that relate to operations with VAT.
If taxation settings were done, but the entity is not recognized as VAT taxpayer, then settings should be cancelled.
Go to Accounting > Master Data > Entities > Tax Accounting tab > History of Changes:
If you try to save this parameter, an error appears:
Follow these steps to change settings properly:
1. Cancel Month End Closing up to date that was set in the system as start date for VAT Payment:
Accounting > Service Tools > Month End Closing
2. Unpost