Working with a 3PL: The Complete Guide for Brands
How 3PL pricing, contracts, operations and invoices actually work, for the brands who pay the bills. Sourced line by line.
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Understanding your invoice
Know what every line on your bill means, and what to ask for behind it.
How to read a 3PL invoice: summary, line items and detail files
A complete invoice has three layers. Ask for all three.
11 min read · updated Oct 20, 202614.1 · Reference3PL invoice backup: the supporting detail files to always request
Ask for detail files with every invoice, not only when something looks off.
11 min read · updated Oct 20, 202614.6 · How-toTrue cost per order: how to calculate it from your 3PL invoices
Count postage and late carrier adjustments, not just the 3PL's fees.
11 min read · updated Oct 20, 20264.3 · ExplainerHow 3PLs measure storage: snapshot, daily average, peak or prorated
How the count is taken can change your storage bill as much as the rate.
10 min read · updated Oct 21, 2026Fees and surcharges
What each fee covers, how it's priced, and where to look closer.
3PL hidden fees: charges to never accept without a definition
Don't accept a fee until its trigger, unit and rate are in writing.
11 min read · updated Oct 15, 20264.7 · ReferenceDeep dive3PL accessorial fees: a complete list of 40+ warehouse charges
Each accessorial should have a written trigger and unit before you sign.
22 min read · updated Oct 21, 20264.4 · Comparison3PL pick and pack fees: first pick vs. additional pick vs. per unit
Two quotes with the same pick rate can bill differently. Price both on your own orders.
10 min read · updated Oct 21, 20264.3 · Comparison3PL storage fees: per pallet vs. per bin vs. per cubic foot (and per square foot or location)
Full pallets favor per-pallet pricing; small, slow SKUs favor bins.
10 min read · updated Oct 21, 20264.2 · Comparison3PL receiving fees: per pallet vs. carton vs. unit vs. hour
Match the receiving unit to how your stock arrives.
10 min read · updated Oct 21, 202612.2 · ReferenceDeep diveShipping surcharges explained: fuel, residential, handling and more
Most surcharges are triggered by size, destination or season. Know which ones your parcels hit.
20 min read · updated Oct 15, 2026More in this topic
- What is dimensional (DIM) weight, and how is it calculated? · You pay the greater of DIM and actual weight.
- Why accurate product weights and dimensions matter at a 3PL · Wrong product dimensions can raise DIM weight and storage charges until they're fixed.
Contracts and negotiation
What to get in writing before you sign, and what you can still change after.
Which 3PL fees and contract terms are negotiable (and which aren't)
Rates, minimums and fee definitions are easiest to negotiate before you sign.
11 min read · updated Oct 21, 20264.1 · Explainer3PL monthly minimums: how they're calculated, what counts toward them, and how to negotiate
Ask for a ramp period on a new contract before you sign.
10 min read · updated Oct 15, 20264.8 · Explainer3PL price escalators and CPI clauses: how annual increases work
Ask for a cap on annual increases in the contract.
10 min read · updated Oct 21, 20264.1 · Explainer3PL account management and technology (platform) fees explained
Find out what the platform fee covers before you compare it across quotes.
8 min read · updated Oct 15, 202614.4 · How-toOutdated 3PL rates after a contract change: how to spot and fix them
After any rate change, check the first invoices against the new card.
10 min read · updated Oct 20, 2026Choosing or switching a 3PL
How to compare quotes, and spot the costs a rate card doesn't show at first glance.
How 3PL pricing works: an overview of the rate card
Read the fee definitions, not just the rates.
16 min read · updated Oct 15, 20263.3 · How-toHow to compare 3PL rate cards and quotes apples to apples
Price every quote on one month of your own orders.
11 min read · updated Oct 15, 20264.5 · ExplainerHow 3PLs bill shipping: pass-through, markup or their own rate card
Ask which of the three shipping models you'll be on before you compare postage.
11 min read · updated Oct 21, 202612.4 · ExplainerWhat is rate shopping? How a 3PL picks the carrier for each order
Ask whose rates are compared, and whether surcharges count.
10 min read · updated Oct 15, 20264.4 · ComparisonB2B and wholesale pick fees: each vs. case vs. pallet pick
If you sell wholesale, check how your case packs change what you're billed.
10 min read · updated Oct 21, 2026Disputes and getting money back
How to check the bill, catch errors and get the credit.
How to audit a 3PL invoice: a step-by-step checklist
Log variances in both directions, undercharges included.
18 min read · updated Oct 20, 202614.2 · ComparisonHow often to audit 3PL invoices: every invoice, sampling or quarterly?
A quarterly-only audit lets earlier claims expire.
10 min read · updated Oct 20, 202614.4 · ChecklistDeep dive25 common 3PL billing errors and how to spot each one
Start with old rates, double charges and inflated counts.
24 min read · updated Oct 20, 202614.2 · How-toHow to check 3PL invoice rates against your rate card
Divide amount by quantity on every line. The rate should match your card.
10 min read · updated Oct 15, 202614.3 · How-toHow to audit DIM weight charges: catching wrong boxes and wrong dims
Recompute billed weights with the divisor you agreed.
11 min read · updated Oct 15, 202614.5 · How-toHow to dispute a 3PL invoice: process, evidence and etiquette
Put every dispute in writing, with the term it breaks and the right amount.
10 min read · updated Oct 20, 2026More in this topic
- How to verify 3PL storage charges against inventory snapshots · Rebuild the billed storage count from a snapshot of what was actually there.
Browse the library
Published articles open now; the rest are coming soon.
- 3.3How to compare 3PL rate cards and quotes apples to applesPart III · The RFI and RFPHow-to11 min
- 4.1How 3PL pricing works: an overview of the rate cardPart IV · Pricing modelsExplainer16 min
- 4.13PL monthly minimums: how they're calculated, what counts toward them, and how to negotiatePart IV · Pricing modelsExplainer10 min
- 4.13PL account management and technology (platform) fees explainedPart IV · Pricing modelsExplainer8 min
- 4.23PL receiving fees: per pallet vs. carton vs. unit vs. hourPart IV · Receiving feesComparison10 min
- 4.33PL storage fees: per pallet vs. per bin vs. per cubic foot (and per square foot or location)Part IV · Storage feesComparison10 min
- 4.3How 3PLs measure storage: snapshot, daily average, peak or proratedPart IV · Storage feesExplainer10 min
- 4.33PL long-term storage fees and aged-inventory surcharges explainedPart IV · Storage feesExplainer11 min
- 4.43PL pick and pack fees: first pick vs. additional pick vs. per unitPart IV · Fulfillment (pick and pack) feesComparison10 min
- 4.4B2B and wholesale pick fees: each vs. case vs. pallet pickPart IV · Fulfillment (pick and pack) feesComparison10 min
- 4.5How 3PLs bill shipping: pass-through, markup or their own rate cardPart IV · Shipping charges on a 3PL invoiceExplainer11 min
- 4.5How 3PLs bill LTL and FTL freight on B2B ordersPart IV · Shipping charges on a 3PL invoiceExplainer11 min
How this guide is written
- Answer first. Every article opens with a short, direct answer you can quote.
- Sourced line by line. Every number links to its source, and survey figures carry their year and sample.
- Vendor-neutral. We never name a brand or a 3PL, and we explain why 3PLs price the way they do.
- Show the math. Cost topics include a worked example with the arithmetic checked.
- Reviewed on a schedule. Carrier rules and published rates are re-checked every three months.
Terms to know
Hover or tap a term for a plain-English definition. Every article links its terms the same way.