Retailers talk about returns as a logistics nuisance. That is the first mistake. Returns are a margin event with a logistics wrapper, and the margin damage is done by the process that follows the parcel, not by the parcel itself. The UK numbers are large enough to demand attention: industry research shared by Retail Economics and ZigZag estimates returns across UK retail at billions of pounds of value flowing back through the supply chain each year, and the same research shows most retailers charging for returns while still absorbing the full handling cost.

The four costs hidden in every return

Count a return properly and you will find four costs, not one:

  • The refund. The sale price returned to the customer, which reverses the revenue even though the item may come back sellable.
  • Reverse logistics. The carrier leg back, the returns label, the depot sortation. This is often the same price as the outward delivery.
  • Handling labour. Inspection, refolding, reboxing, relabelling and returning to stock. In fashion this can be several minutes of skilled labour per item.
  • Value decay. Every day a return sits in a tote, its resale value falls and the chance of it selling at full price falls with it. Seasonal items decay faster than anyone budgets for.

The unified stock management article shows where these costs land in the margin accounts, because most retailers never see them as one number at all.

The 48 hour returns workflow

The single highest return process change is speed. Set the target that every return is received, inspected and dispositioned within 48 hours of landing in the building. That sounds ambitious, and it is achievable if the workflow is designed as a flow rather than a pile. The returns area needs defined stations, a scan at every step, and a disposition decision that cannot be deferred. The record drift guide explains why returns in limbo are the largest single source of record drift, so the 48 hour target fixes margin and data at the same time. Returns handling should be one of the ten questions to ask before you buy.

Restock, refit or write off

Every returned item gets one of three dispositions, decided by inspection, not by hope:

  • Restock. Sellable as new, back to the sellable record immediately, ideally to the channel with the strongest demand for that SKU.
  • Refit. Repairable or reconditionable. Refit has a cost, so only items whose full price resale clears the refit cost plus the margin target should be refitted. Everything else goes to outlet or write off.
  • Write off. Damaged beyond sensible resale. Write off fast, record the reason, and stop paying storage on dead stock.

The IMRG research programme published a detailed study on returns behaviour, the Returning Conundrum report, which shows how much of the returns volume in UK retail is driven by sizing and multi item ordering in fashion. Retailers who feed that reality into the classification rules, for example by expecting high size swap rates on certain lines, set their refit capacity and restock targets from data instead of guesswork.

Valuing returns correctly in the ledger

The finance team values returned stock at the original cost of goods, which is correct for a restocked item and wrong for everything else. A refit item is worth the original cost minus the refit cost. A write off is worth scrap value. If the ledger does not separate the three, margin reporting quietly overstates stock value and understates the returns problem. Set up return valuation rules in the ERP so each disposition posts its own value, and the monthly accounts start telling the truth about what returns cost.

Return reasons as management information

The return reason code is the most underused dataset in retail. Size issues, colour issues, damaged in transit, changed mind, not as described. Aggregated by SKU and channel, these codes tell buying and merchandising exactly what to fix. A size curve issue on a bestseller is worth thousands of pounds in avoided returns. A packaging weakness shows up as a damage code before customers start complaining in reviews. Marketplace selling covers the channel side, where marketplace return reason data flows back through the integration to the ERP and becomes part of the same picture.

The legal frame and the margin levers left

Returns policy sits inside a legal frame. UK consumers have the right to return most online purchases within 14 days of delivery for a full refund under the Consumer Contracts Regulations, with the rules explained on the GOV.UK consumer protection guidance. So the policy levers are the ones the law leaves open: who pays for the return, what condition the item must be in, how long restocking takes and what happens to the item next. Each of those levers is a margin decision, and each should be made deliberately rather than by default.

Two final notes from client work. First, the retailers with the fastest returns processes also have the highest restock rates, because speed preserves resale value. Second, returns and overselling are the same disease viewed from two ends: both come from weak stock visibility. The oversell prevention article closes that loop, and disconnected systems show why the two problems arrive together when systems do not share one stock record.