How to read a 3PL invoice: summary, line items and detail files

Annotated example: one month's invoice (illustrative)#

Everything here is invented and illustrative, not a benchmark, and in a different month from the rate card overview's example. The brand shipped 2,000 orders (2,600 units) in September 2026, one package per order. Letters in the Note column key the notes below each table.

The summary page#

• A. Service period. September's work, billed October 3. Earlier charges can still appear: carrier adjustments arrive after delivery⁸, credits reverse earlier invoices, and corrected invoices carry earlier charges; see Billing cycles: weekly, semi-monthly and monthly, and what's billed when.
• B. "Freight". Here it means parcel postage, its markup and carrier adjustments. Many 3PL invoices label parcel postage "freight", while to many brands freight means pallets moving LTL or FTL.
• C. Credits. On their own line (note L).
• D. No minimum line. This contract's $2,500 monthly minimum is credited by pick-and-pack fees, which came to $3,740. A shortfall line usually appears only in months you fall short, so check the contract, not the invoice, to learn whether you have one.

The line items#

• E. Pick and pack. An order fee that includes the first pick, plus a fee per additional unit. On the other common structure, a lower order fee plus a pick on every unit, the same month reads 2,000 × $1.35 = $2,700 and 2,600 × $0.40 = $1,040, the same $3,740. Line names don't reliably show the structure, so compare billed picks with units shipped.
• F. Packaging. A flat fee per order here; it can also be billed per box or rebilled at cost or cost-plus, or have no line if it's in the order fee or brand-supplied.
• G. Storage and receiving. The storage lines don't show the count basis (a set-day snapshot, daily average or peak) or the count date; the detail file or contract does. Storage can also be charged at receipt, and receiving priced per carton, unit or hour, often on more than one basis. About a quarter of Implentio customers' 3PL contracts with storage fees have at least one storage line with only a dollar amount, and about one in five of their 3PL contracts with receiving fees show receiving only as an amount. Ask for the count or receiving report behind such a line; see Verifying storage counts against inventory snapshots.
• H. Special project. This accessorial line names a work order, which should show the hours (or units), a description and an approver; see Checking manual and one-off line items.
• I. Fee names. Descriptions are the 3PL's billing-system names, and fees can sit in unexpected sections, so map each line to your rate card; see Why 3PL invoices are hard to read: formats, codes and fee naming.
• J. Postage. Billed at carrier cost, with the markup on its own line, which is the easiest layout to check. Under cost-plus billing like this, the markup belongs in the contract, so you can check each charge against it. Postage can also be priced on the 3PL's own rate card, where the margin is inside the price and needn't be written down: you judge the rates, not the margin. See How 3PLs bill shipping: pass-through, markup or the 3PL's own rate card. For most DTC brands on the 3PL's carrier accounts, postage is the largest part of 3PL spend.
• K. Carrier adjustments. Most 3PLs pass carrier adjustments through on a later invoice, as separate lines or folded into regular shipping lines; some brands see none. No markup applies here; your contract sets whether one applies and whether the 3PL absorbs adjustments caused by its own box choice or data. See Reconciling carrier invoices to 3PL shipping charges.
• L. Credit. It shows the quantity, rate and original invoice; see Tracking disputes and credits to closure.
• M. Sales tax. Taxability depends on the state and on who uses the supplies⁹; see Sales tax on 3PL invoices: which services and supplies are taxable.

The supporting detail files#

Each file rolls up to a line; excerpts show its first rows, then its totals.

The row count gives the 2,000 order fees, units minus one per order gives 600 additional picks (2,600 on an every-unit structure), and the postage total gives both postage lines. Surcharges such as fuel can sit inside postage, as in this file; ask for a file that itemizes them per shipment (Shipment-level cost data: why you need it and how to ask for it). To check order counts, see Matching billed orders to shipped orders.

This contract counts occupied locations on the month's last day.

The inbound ASN (advance ship notice) is the notice you send your 3PL before a shipment arrives.

"Sent to carrier" values come from the 3PL's system and can be a stored box size, not a measurement. For which files to request, see The supporting detail files you should always request.