intra community taxable amount journal entry

Hi,

The client has the following requirement:

each time that they enter an A/P voucher with an intra community tax rate then the taxable amount to be automatically updated in two memo accounts.

In more detail, if we enter a voucher of 1000 euros with a +24/-24% tax rate then the following journal entry to be created during posting:

Liability 1000 Credit

Expense 1000 Debit

VAT 240 Debit

Reversed VAT 240 Credit

Memo Acc1 1000 Debit

Memo Acc2 1000 Credit

The reason of the above is that they want to can see it in their G/L Trial Balance and not only through the VAT reports.