Your invoice reflects the operational and shipping services used during your billing period. Below is a breakdown of the most common line items and what they represent.

If you’re ever unsure about a charge, your Account Manager or Support can help clarify based on your specific setup.

For more information on accessing your invoice, see Managing billing and invoicing

Shipping charges represent the cost of transporting orders from the fulfillment center to your customers.

These charges are typically determined by your Portless pricing agreement (price card) and may vary depending on factors such as:

In some cases, bundled products or promotional items included in an order may also affect how shipping charges are calculated.

Pick and Pack fees cover the fulfillment work required to prepare orders for shipment.

This includes:

Depending on your pricing structure, Pick and Pack fees may be calculated based on the number of items in an order or based on grouped item tiers defined in your pricing agreement.

Custom Packaging charges apply when specialized packaging materials are requested.

Examples include:

These materials are sourced and provided by the fulfillment center and then reflected on the invoice.

Special surcharges may apply when specific operational services or account configurations require additional handling.

These charges are typically defined in your pricing agreement and may vary depending on your fulfillment setup.

During peak holiday shipping periods, carriers introduce seasonal surcharges due to increased shipping demand.

These surcharges typically apply during the late Q4 holiday season through early January, when shipping volumes are significantly higher across the industry. These costs reflect carrier peak-season pricing adjustments.

Tariffs represent import duties applied when goods cross international borders. Tariffs are calculated based on:

Because tariff rates depend on product classification and regulatory changes, these charges may vary from month to month. To ensure accurate tariff calculations, merchants should confirm that product data such as cost of goods and HS codes are up to date.

A Tariff Processing Fee may be applied to cover the administrative handling associated with tariff processing and customs documentation. This includes managing tariff payments and processing required customs data.

When shipments use express carriers, the carrier may apply customs brokerage fees for clearing goods through customs. If these fees are incurred, they may appear on your invoice as a recharge from the carrier.

Wholesale shipments may include additional operational charges related to bulk fulfillment.

These charges may include:

Carrier shipping charges associated with wholesale shipments.

These costs reflect the underlying shipping charges from the carrier used to deliver wholesale orders.

Labor associated with preparing wholesale shipments.

This may include:

Operational service charges related to wholesale fulfillment workflows and logistics coordination.

For orders shipped using express delivery services, the following charges may appear:

Carrier charges associated with express shipping services.

Operational handling and service fees associated with processing express shipments.

Some merchants operate with a prepayment balance that is applied to future invoices.

When a prepayment is made:

This line item reflects the amount of prepaid balance applied to the current invoice.

Your invoice reflects actual activity during the billing period. Changes may be driven by:

If you'd like a breakdown specific to your account activity, please reach out to your Account Manager.