Hi,
I don't see the necessity to post this document.
You can create a record attachment in your system if you like.
However, when it comes to posting of the payment, the system has a specific process for that.
You can find this process here:
docs.microsoft.com/.../create-sales-tax-payment
What the system does when you execute the process is that it clears the sales tax account and shifts the balance to be paid to a vendor account (or clearing account).
The balance posted to this account must match what you receive from your government.
If it does not then there is something wrong with your recorded tax transactions in the system and you have to investigate what went wrong.
If everything matches then you can execute the payment and thereby clear the account to which the sales tax balance was posted to.
Does that standard process make sense to you?
Best regards,
Ludwig