Costco Code CST-RTV: Return to Vendor (RTV) / member return deduction.
Costco Return to Vendor (RTV) deductions charge back suppliers for member returns, overstock, or depot salvage merchandise. They are disputable if return quantities, wholesale costs, or disposition terms are inaccurate.
Why Costco issues Code CST-RTV.
- Member returns processed at Costco depots and billed back to the vendor
- Return center billed back more units than physically delivered back to the supplier's warehouse
- Return cost calculated at retail price instead of wholesale cost
Documents that win.
- Costco return manifest and carrier POD from receiving dock
- Original PO/Invoice proving wholesale unit cost
- Signed vendor return policy agreement
How to dispute it.
Find remittance line for Code CST-RTV in Costco Depot Accounts Payable & Returns Processing. Note the PO, invoice number, and claim amount.
Collect and verify documentation: Costco return manifest and carrier POD from receiving dock, Original PO/Invoice proving wholesale unit cost, Signed vendor return policy agreement. Ensure piece counts and timestamps match.
File dispute claim package via Costco Vendor Portal selecting claim reason for Code CST-RTV (Return to Vendor (RTV) / member return deduction) and attaching all verification documents.
Monitor claim status in Costco Vendor Portal until approved (30-45 days). Approved credit memo will apply to a future settlement remittance.
Dispute within 6 to 12 months of deduction issuance. Check your remaining filing window with our free Dispute deadline checker.
Source: Costco supplier guidance · Verified by Laxmi Narayan · 2026We audit remittances, assemble proof documents, and handle end-to-end Costco deduction recovery on pure contingency. We'll check whether yours is disputable, free, in 72 hours.