There has been a major change in Central Sales Tax Rules as regards the C-form, vide notification no.588 (E) dated 16.09.2005 and w.e.f. 01.10.2005. As per this rule, the CST declaration form-C have to be issued for every quarter of the financial year, starting from 01.10.2005 (instead of one C-form per financial year). The C-forms for each quarter will have to be collected and given to the sales tax department by the end of the next quarter.
Further, from 2006-2007 onwards, four separate C-forms will be required i.e. one separate C-form to cover transactions (if any) made in each quarter of the financial year. The penalty for non-submission of forms by the prescribed due date has been made stringent. If the C-forms are not sent by the due date, then the concessional rate of CST (2%) is not applicable; the full CST rate will be applicable. CST has to be immediately paid by the dealer to the sales tax department