Vikrant,
AFAIK for now there is only this document (which is only a data model sketch, but very useful)
http://docs.ofbiz.org/display/OFBTECH/OFBiz%27s+Tax+Authority+Data+ModelIt's not so hard to set VAT, but there are still some minor problems around (to know them simply type VAT in OFBiz Nabble forum)
Jacques
De : <
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Does anyone have detail steps on how to setup VAT in ofbiz?