TDS reimbursement involves deducting tax at source from payments made to merchants and remitting it to the government. The deductee receives credit for the TDS amount based on Form 26A or TDS certificate. Form 16A providing TDS details will be provided by the merchant's CA. TDS is filed on a quarterly basis. Documents required for reimbursement include Form 16A and commission invoice. Processing time for reimbursement is 25 working days if details are correct. Certain fees like marketing fees and PG fees have a TDS rate of 5% while logistic charges have 2% rate. Merchants must file TDS on behalf of the specified company and TDS amount must match certificate for reimbursement.