Document date control for tax determination in MIRO

Dear Guru's,

My client wanted to control Tax calculation / determination in MIRO frm invoice date.

At present system calculates taxes from posting date. Is there any user exit / Badi which we can use to achieve this.

Please give me some input on same.

Regards,

Umesh

Edited by: Umesh Agrawal on Feb 25, 2009 9:36 AM