Invoices generate duplicate entries for self-assessed tax liabilities

Summary:

invoices generate duplicate entries for self-assessed tax liabilities

Content (please ensure you mask any confidential information):

Some invoices generate duplicate entries for self-assessed tax liabilities (debit and credit for the same account). Although there's no financial impact, the business is concerned about these duplicates appearing in the accounting records.

Example of Duplicate Entries:

Actual:
Self-Assessed Non-Recoverable Tax Dr 100
Self-Assessed Tax Liability Dr 100
Self-Assessed Tax Liability Cr 200

Expected:
Self-Assessed Non-Recoverable Tax Dr 100
Self-Assessed Tax Liability Cr 100

This behavior is not for all invoices but there are many invoices, So please help us as why self assessed tax liability line is debit and credit