Withholding Tax in NAV 2009 W1 Version

Is there any way without customization that we can automate Withholding tax in worldwide version of NAV 2009?

Add a debit and credit line to the sales order that will post the amounts to the correct GL accounts when the order is posted.

Business requirement is to Invoice 100% to the Vendor and deduct 5% at the time of payment. We are using Suggest Vendor Payment.