<h1>Collection of Tax at Source requires quarterly filing via Form 27EQ with collector and party wise TCS particulars.</h1> Form No. 27EQ implements the quarterly reporting obligation for collection of tax at source under section 206C: collectors must furnish TAN and PAN/Aadhaar, collector and responsible person particulars, and full particulars of amounts collected (tax, surcharge, health and education cess, interest, fee, penalty), mode of deposit and exact challan/transfer voucher details. A mandatory Annexure provides party wise break up by collectee (PAN, party code, transaction value, amount received/debited, collection code, dates, rate and tax components). Notes prescribe PAN/Aadhaar requirements, book adjustment procedure for government collectors, standardized collection codes and alpha codes for reasons for non/ lower/ higher collection; verification by signature is required.