Storage fees cover the cost of holding your inventory at the Portless fulfillment center between inbound and shipment. They appear as a separate line item on your invoice, distinct from pick-and-pack or shipping charges. If you store inventory across both bonded and non-bonded warehouses, each may carry a different rate.
Note that your specific storage rates are set in your individual pricing agreement. Reach out to your Customer Success Manager (CSM) for more information.
How storage is calculated
We currently have two types of storage billing. For merchants billed by cubic meters (CBM), the details are as follows:
Rate: $0.40 / cubic foot / SKU / month
Calculation: Based on actual dimensions data
Frequency: Billed monthly
Please reach out to your CSM team for further details.
Billing cadence
Storage fees are issued as part of your regular Portless billing cycle. In practice, storage charges for a given month may be batched and appear on a subsequent invoice rather than the invoice that covers the same period.
If you cannot find your storage calculation in an invoice PDF, contact your CSM or [email protected] and request a detailed breakdown. Storage calculations are not always visible directly in PDF invoices. The breakdown must be requested separately.
What to check if your storage charge looks wrong
Find your inventory volume. Log in to the Portless portal at portal.portless.com and check your current inventory levels.
Check the billing period. Storage charges may cover a period that doesn't match the invoice date. Request a breakdown from [email protected] that shows which dates are covered.
Confirm the rate. Your storage rate is in your pricing agreement. If you don't have a copy, ask your CSM.
Look for duplicate charges. If the same period appears on two invoices, that's a duplicate and should be disputed immediately (see below).
Disputing a storage charge
If a storage charge appears incorrect, for example, a wrong amount, a wrong period, or a duplicate, contact the Billing Team:
Email: [email protected]
Include: your invoice number, the line item in question, and what you believe the correct charge should be
For urgent disputes (e.g., a duplicate charge holding up payment), copy your CSM on the email. The Billing Team can credit the duplicate and update the portal within a few business days.
Common storage billing issues
Duplicate storage fee on two invoices. Two invoices generated for the same period may each include a storage charge, resulting in the fee appearing twice. This is a known billing system issue. Contact [email protected] with both invoice numbers to request a credit. You do not need to pay the duplicate charge while it's under review.
The storage fee is delayed or missing from the portal. Storage fees are processed through an internal sync between the billing system and the portal. Sync delays can cause fees to be missing from the portal view even after the invoice is issued. If your portal doesn't reflect a storage charge shown on your invoice, this is a backend issue. Notify your CSM and allow 1–2 business days for the sync to resolve.
Cannot find the storage calculation in the invoice PDF. Storage calculations are not always broken out in the PDF itself. Request a line-by-line breakdown from [email protected] for any billing period.