ReverseMath

Return Cost and Reverse Logistics Calculator

The refund is the smallest part of what a return costs you.

Item price ($)

Unit cost ($)

Orders per month

Return rate (%)

Outbound shipping ($)

Return shipping ($)

Inspection & handling ($)

Processor fee kept (%)

Share resellable (%)

Markdown to resell (%)

Disposal per write-off ($)

Customer lifetime value ($)

Churn after a return (%)

Full cost of one return

$80.73

The refund is the smallest part. Reverse shipping, handling, the processor fee you never get back, the markdown needed to resell, and the customers who stop buying all land on the same SKU — which is why a product with healthy gross margin can still lose money at a high return rate.

Break-even return rate: 30.6%
Net profit per month: $23,882
Effective margin: 18.8%

What you entered

Item price ($): 68Unit cost ($): 24Orders per month: 2400Return rate (%): 22Outbound shipping ($): 6.5Return shipping ($): 7.25Inspection & handling ($): 4.5Processor fee kept (%): 2.9Share resellable (%): 65Markdown to resell (%): 30Disposal per write-off ($): 3Customer lifetime value ($): 210Churn after a return (%): 18

1
Logistics cost of one return
$7.25 return ship + $4.50 handling + $6.50 outbound + $1.97 processor fee= $20.22
2
Value lost on the goods
65% resold at −30% + 35% written off= $22.71
3
Lifetime value lost to churn
$210 LTV × 18% who never come back= $37.80 (47% of the total)
4
Full cost of one return
$20.22 + $22.71 + $37.80= $80.73
5
Monthly position at a 22% return rate
1,872 kept × $35.53 − 528 returns × $80.73= $23,881.92
6
Return rate where this SKU breaks even
$35.53 ÷ ($35.53 + $80.73)= 30.6% (you are at 22%)

Result

Full cost of one return: $80.73

Each return costs $80.73 against a $68 item — 1.19× the price, with lost lifetime value making up 47% of it. At a 22% return rate this SKU nets $23,882 a month, an effective margin of 18.8%. It stops making money at a 30.6% return rate, so you have 8.6 points of headroom.

What returns cost across a month of orders

Each return costs logistics, lost product value, and a share of customer lifetime value. Rows use a $60 item on 2,000 monthly orders with 80% resellable.

Return rate	Returns/month	Cost per return	Monthly return cost	Gross profit	Net profit	Effective margin
5%	100	$70.94	$7,094	$65,094	$58,000	50.9%
10%	200	$70.94	$14,188	$61,668	$47,480	44.0%
15%	300	$70.94	$21,282	$58,242	$36,960	36.2%
25%	500	$70.94	$35,470	$51,390	$15,920	17.7%
40%	800	$70.94	$56,752	$41,112	-$15,640	-21.7%

Break-even is a 32.6% return rate on these numbers, past which the business loses money on every additional order it ships. Cost per return does not change with the rate; what changes is how many of them there are. Lost lifetime value is 51% of the total, which is the part return policies usually ignore.

A return cost calculator works out what a returned order actually costs, which is almost never the refund alone. Retail teams track a return rate and a refund total, then treat the gap between gross margin and net margin as a mystery. That gap is made of concrete line items: the shipping paid to send the item out and never recovered, the label paid to bring it back, the labour to inspect and restock it, the processor fee the payment network keeps whether or not you refund the customer, the markdown needed to sell a returned unit a second time, and the units that cannot be sold again at all.

The calculation runs in three parts. Logistics adds outbound shipping, return shipping, inspection and handling, and the payment fee that does not come back with the refund. Goods value comes next: the share of returns you can resell loses whatever markdown is needed to move a second-hand unit, while the share you cannot resell loses the full unit cost plus a disposal charge. Third comes the component most models omit entirely, the customers who return an item and never order again. Lifetime value multiplied by that churn rate is frequently the single largest number in the whole calculation, and it is invisible on any warehouse report.

The output that matters most is the break-even return rate: the point where profit from kept orders exactly cancels the cost of returned ones. It is gross profit per kept order divided by the sum of that profit and the full cost of a return. A product with a healthy fifty percent gross margin and an eighty dollar return cost can be underwater at a return rate that looks unremarkable on a dashboard, while the same rate is comfortably safe on a heavier-margin, lower-friction product. Comparing your actual rate against that threshold is what identifies which SKUs deserve intervention and which are fine as they are.

What you do with the answer depends on where the cost concentrates. If logistics dominates, the levers are packaging, negotiated carrier rates, and whether free return shipping buys enough conversion to pay for itself. If value loss dominates, look at resale channels, refurbishment, and the accuracy of sizing guidance and product photography, since most avoidable returns start with a mismatch between the listing and the item. If lost lifetime value dominates, the return experience itself is the problem: a fast, clear refund usually keeps the customer, while a slow or contested one loses them permanently.

Break-even return rate beats return rate

A return rate on its own means nothing without the margin behind it. A 25 percent rate is healthy on a product earning 40 dollars per kept order and ruinous on one earning 8. The break-even rate divides gross profit per kept order by that profit plus the full cost of a return, giving the single number that tells you whether a SKU is safe. Track that gap, not the raw rate.

Lost lifetime value is usually the biggest line

Logistics costs are visible because someone pays an invoice for them. The customer who quietly stops ordering after a bad return leaves no invoice at all, which is why the number is so often left out. At typical ecommerce lifetime values, a churn rate in the teens contributes more to the cost of a return than shipping, handling and markdown combined.

Frequently asked questions

A 68 dollar item with 22 percent returns on 2,400 orders a month - what does that cost?

Each return costs 80.73 dollars once you add 20.22 of logistics, 22.71 of lost goods value, and 37.80 of lost lifetime value. That is 1.19 times the item price. The 528 returns cost 42,626 dollars a month against 66,508 of gross profit from the 1,872 kept orders, leaving 23,882 dollars net and an effective margin of 18.8 percent.

At what return rate does this product stop making money?

30.6 percent, using the default figures. Gross profit per kept order is 35.53 dollars and the full cost of a return is 80.73, so the break-even rate is 35.53 divided by 116.26. At a 22 percent actual rate you have 8.6 points of headroom before the SKU goes to zero.

Why include the processor fee if the sale was refunded?

Because most payment processors keep the percentage fee on a refunded transaction, and many keep the fixed fee too. You collected nothing and still paid to collect it. On a 68 dollar item at 2.9 percent that is 1.97 dollars gone on every single return, which at scale is a meaningful line of its own.

Should free return shipping be scrapped to save money?

Not on this calculation alone. Free returns raise conversion and average order value, and this tool only prices the cost side. Set return shipping to zero to see what paid returns would save, then weigh that against the conversion you would lose. The right comparison is total contribution, not return cost in isolation.

How does this differ from the profit margin calculator?

The profit margin calculator prices a sale that sticks. This one prices what happens to that margin when a share of those sales come back, including the costs that never appear in cost of goods sold. Use margin first to confirm the product works, then use this to find out whether the return rate is quietly undoing it.