Posting NEt and TAX to customer account as separate item in FI posti key 01

We have a customer who pays for the product separatly from the VAT.

They pay for the VAT at different times. This leads to problems when matching as we have to wait for both of the payments to come in before we can clear. Is it possible for us to post an additional separate line item to finance to the customer account the VAT element .

SO the posting to the customer account posting key 01, would be individual entries for the

u2022 NET amount for the product.

u2022 VAT amount

In addition there will be the normal postings to the SALES and TAX accounts

Is there a way to do this via configuration?

What would be the best way to do this?

Thanks