Reverse Logistics: Process, Returns Grading and 3PL Fees

What reverse logistics means

Reverse logistics is the movement of goods from where they were sold or used back toward the seller, the manufacturer or a recycler, to recover their value or to dispose of them properly. For an ecommerce brand it is mostly customer returns: a parcel that comes back, gets checked, and is either sold again or written off.

It runs through the same warehouses, carriers and software as forward logistics, but the work is different:

	Forward logistics	Reverse logistics
Starts with	A forecast and a purchase order	A customer’s decision
Volume	Planned	Irregular, with a peak after the holidays
Unit condition	New and known	Unknown until inspected
Handling	Cartons and pallets of one SKU	Single parcels of mixed SKUs
Cost per unit	Low, spread over volume	High, since every unit is handled alone
End decision	Ship to a customer	Restock, repair, sell off or scrap

Customer returns are the largest flow, but not the only one:

Flow	What comes back	Usual destination
Customer returns	Unwanted, wrong or faulty items	Stock, open-box sale, refurbishment or scrap
Failed deliveries	Undeliverable or refused parcels	Stock, once the address is checked
Warranty and repair	Faulty products under warranty	Repair, replacement or the manufacturer
Recalls	Every unit of an affected batch	The manufacturer, or destruction
Unsold stock	End-of-season or slow inventory	Outlet, liquidator or donation
Packaging and pallets	Pallets, totes, reusable containers	Their owner, for reuse

How much of ecommerce comes back

The National Retail Federation and Happy Returns estimated that US retailers would see 15.8% of 2025 sales returned, or $849.9 billion in merchandise, down from 16.9% in 2024. The rate for online sales was higher, at an estimated 19.3%, and retailers expected 17% of holiday sales to come back. The figures come from surveys of 2,006 consumers and 358 ecommerce professionals at merchants with more than $500 million in revenue.

Two findings from the same survey matter to anyone handing returns to a warehouse. Retailers put 9% of all returns down to fraud, with overstated return quantities, empty boxes and decoy items such as counterfeits the patterns most often reported as rising. And 49% planned to rely more on third-party logistics partners for holiday returns, which makes January the month when a 3PL’s returns capacity gets tested.

The reverse logistics process in 5 steps

Returns sit at the end of the order fulfillment cycle, and the refund or exchange is what finally closes the order. Between the customer’s request and that refund, each unit passes through 5 steps:

Step	What happens	What it needs	Where it fails
1. Authorize	The customer requests a return; the store checks the window and issues a label and an authorization number	A returns policy and a returns portal	Parcels arriving with no authorization
2. Transport back	The parcel travels to the warehouse, directly or through a drop-off point that consolidates parcels	A carrier label and the right return address	Parcels sent to the wrong building
3. Receive and match	The parcel is scanned and matched to its authorization and original order	The authorization number on the label or slip	Unmatched parcels piling up on a shelf
4. Inspect and grade	Each unit is checked for damage, wear, missing parts and the right SKU, then graded	Written grade definitions and photos	Worn items graded as new
5. Disposition	Each unit is restocked, repackaged, refurbished, liquidated, sent to the vendor or scrapped, and the refund is triggered	Rules per grade and a link to the store	Refunds issued before inspection

Unannounced returns, parcels that arrive with no authorization, need a rule of their own, such as a 14-day hold while customer service matches them to an order, after which they are graded like any other return.

The most expensive decision in the chain is when the refund is released. A refund triggered by the carrier’s first scan is fast and popular with customers, but it pays out before anyone has opened the box.

Grading returns: the disposition rule

Every returned unit ends in one of a handful of places, and a written grade decides which. Without one, the warehouse decides case by case, and a worn item goes back on the shelf for the next customer to return.

Grade	Condition	Disposition	What it recovers
A	Unopened, or opened and unused with all packaging	Restock as new	Full value
B	Opened or handled, complete, packaging worn	Repackage and sell as new, or sell as open-box	Full or discounted value
C	Damaged, used or missing parts	Refurbish, return to the vendor or liquidate	Repair margin, vendor credit or a fraction of cost
D	Broken, unsafe, expired or unsellable	Recycle, donate or destroy	Nothing

Grade B carries the most judgment. Many grade B units need only a new polybag, a fresh seal or a relabel to sell as new again, the same bench work a 3PL quotes as co-packing and prices per unit. Whether they go back as new or as open-box is the brand’s call, and it belongs in writing before the first return arrives.

Some returns are not worth taking back at all. The test: take an item back only if what it recovers exceeds what it costs to get it back. Worked through for a $24 phone case that cost the brand $6 to make and land:

• The return label costs $7.50 and the 3PL charges $3.50 to process the return, $11.00 in all.
• Say 60% of returned cases restock as grade A, so an average return recovers 60% of $6, or $3.60.
• The customer is refunded either way, so taking the case back loses $7.40 per return.

A returnless refund, where the customer keeps the case, saves that $7.40. Value a restocked unit at what it would cost to replace, not at its selling price, or the test will favor taking back items that lose money on every trip.

Return reason codes and what they fix

Every return should carry 2 reason codes: the one the customer chose and the one the grader assigns. The 2 often disagree, and when they do, the grader’s code is the one to report on. Reason codes feed back into listings, sizing and packaging, which is where returns are prevented rather than processed.

Reason given	What it usually points to	Fix upstream
Too small or too large	Size chart or fit notes	Size guidance on the product page, fit reviews
Not as described	Photos or product copy	Photos with scale, full specs in the listing
Arrived damaged	Inner packaging or carrier handling	Stronger inner pack, a drop test, carrier claims
Wrong item sent	A picking error	Scan verification at packing, a credit from the 3PL
Changed mind	Buying behavior, not the product	Return window and restocking policy

What a 3PL charges for returns

3PLs price returns per returned parcel, usually $3 to $6, with the first unit’s inspection and restock included. Extra units in the same parcel, repackaging, damage photos, refurbishment by the hour and disposal are billed as separate lines. Take one month of 400 returned parcels holding 480 units:

Before signing, ask whether refurbishment is billed by the hour and at what rate, and whether unsellable stock can go to a liquidator in lots rather than straight to waste.

What a returns SLA should say

A returns SLA has 4 jobs: set how fast a return is processed, define the grades, prove the condition of damaged units, and tell the store when to refund.

The January allowance is worth settling up front. Returns peak in the weeks after the holidays, when the seasonal staff hired for December have gone, and a 3-day promise that quietly becomes 3 weeks leaves refunds waiting and restockable units off the shelf during the January sales.

Returns in-house, with a 3PL, or through Amazon

Returns follow the channel. For orders fulfilled by Amazon, Amazon handles customer service and returns as part of Fulfillment by Amazon, under its rules rather than the brand’s. Orders from the brand’s own store come back to whoever shipped them: the brand’s own space or its 3PL.

In-house returns make sense at low volume, or when grading needs product knowledge a warehouse team lacks, such as testing electronics or judging whether a garment has been worn. A 3PL makes more sense once returns run to hundreds a month, and when it already runs the other steps of ecommerce fulfillment for the brand, since a grade A unit goes straight back to its pick location in the same building and can sell the same day.