Why a ₹999 product can still lose money at 4× ROAS

4x ROAS sounds safe. It isn't, once you subtract COD, RTO, returns, gateway fees and GST from gross margin — here's the real break-even math with a worked example.

"4× ROAS" gets treated as a safe number across most of ecommerce advertising advice. It isn't a universal safe number — it's a safe number only if your pre-ad contribution margin is above 25%. For a lot of Indian D2C sellers, especially anything with meaningful COD and RTO exposure, it isn't.

The part most ROAS advice skips

Return on Ad Spend compares revenue to ad spend. It says nothing about what happens to that revenue before it reaches you. For an Indian D2C seller, a meaningful share of orders placed never turn into revenue at all — they cancel, they come back as RTO (Return to Origin), or the customer returns them after delivery. The ones that do convert still have product cost, packaging, shipping (both ways, for the orders that didn't make it), COD handling fees, payment gateway fees and GST taken out before anything is left over.

Break-even ROAS is the ROAS where what's left over after all of that — your contribution margin, calculated before ad spend — exactly equals your ad spend. Below your break-even ROAS, every ad-driven order loses money, no matter how good the campaign "feels."

A worked example

Take a ₹999 product with a realistic cost structure for a COD-heavy fashion seller: 70% COD share, a 35% COD RTO rate (on the higher end but not unusual for apparel), an 8% return rate on delivered orders, and a ₹500 product cost.

Worked example

Running this through the full funnel — cancellations, then RTO, then returns — before counting any cost against revenue:

Inputs

Selling price: ₹999
Product cost: ₹500
COD share: 70%
COD RTO rate: 35%
Return rate: 8%

Result

Contribution margin (before ad spend): 15.1%
Break-even ROAS: 6.61×
A 4× ROAS campaign on this product: Loses money — needs 6.61× just to break even

At a 15.1% pre-ad contribution margin, the actual break-even point is 6.61×, not 4×. A campaign reporting a comfortable-looking 4× ROAS on this product is still losing money on every order — the dashboard number and the P&L number are telling two different stories.

Why this gap exists for Indian sellers specifically

Most generic ROAS calculators — built for markets without COD at scale — use gross margin only: selling price minus product cost, nothing else. That number is almost always higher than your real pre-ad contribution margin, because it ignores RTO, returns, COD handling, payment gateway fees and GST. The gap between "generic break-even ROAS" and "real break-even ROAS" is exactly the gap those costs create — and for a COD-heavy, RTO-exposed product, that gap is large enough to flip a campaign from profitable to loss-making without changing a single ad-platform metric.

What to do with this

Calculate your own break-even ROAS before you look at campaign-level ROAS at all.
Treat your ad platform's reported ROAS as a top-line number, not a profit signal — it doesn't know your RTO rate or your COD mix.
If your break-even ROAS is uncomfortably high, the fix is rarely "spend less on ads" — it's usually RTO, product cost, or price.

Calculate your own break-even ROAS →