Service tax & tds on amc

Vijaya Kumar K S (Accounts Superiendendent)   (44 Points)

20 February 2014  

A Company issue Tax invoice on AMC Charges for Printers, computers etc., including Service Tax @ 12.36 on 80% of Invoice Amount. my question is, whether we deduct TDS on 80% of Invoice Amount or Full Amount. Please Suggest the answer urgently..