Split Payments for VAT in Poland and Romania

We have been asked to address a new mandatory requirement for Poland and Romania. The requirement is to split supplier payments so that the VAT portion is paid into a different (dedicated VAT only) bank account. The remaining part of the invoice will be paid as usual into the supplier's normal bank account.

We are still in discussions of how to approach this and I wanted to inquire if anyone else had already addressed this issue?

Out thoughts are to create a secondary bank account for the supplier, create a custom program that will split the payment schedules such that the tax amount will be paid on the second payment schedule, and link that to the secondary bank account for the supplier.