The reason is that a checkbox "Amount includes VAT" is checked in the document's hyperlink — when it is checked, VAT is automatically included in the total amount and posted to account 1310, so a separate column for the VAT account is not shown.
How to fix this:
1. Open the receipt document and follow the hyperlink where the VAT accounting procedure is specified.
2. Find the checkbox "Amount includes VAT".
3. Uncheck this checkbox.
4. After that, a "VAT account" column will appear in the tabular section of the document, where you can specify the required accounting account.
Thus, if the checkbox is checked, VAT is considered part of the total amount and is posted to account 1310 automatically, without being separated out. If the checkbox is unchecked, the program allows you to select a separate VAT accounting account, and the corresponding column becomes visible in the document.
Frequently Asked Questions
Why does the total amount of the document change when the checkbox is unchecked?
Because when the checkbox is unchecked, VAT starts to be accounted for separately from the receipt amount rather than being included in it — the amount in the line may display differently, although the total amount payable will remain the same.
Can the checkbox be checked again if a VAT account has already been set up?
Yes, but when the checkbox is checked again, the VAT account column will be hidden again, and VAT will once again be accounted for as part of the total amount in account 1310.