Lost Affiliate Revenue Calculator

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Lost affiliate revenue is a foundational problem for many ecommerce merchants. The average merchant is under-attributing 25-40% of their affiliate sales (with the amount climbing to 50% in mobile-first, influencer centric, or creator-heavy programs)!

Your affiliate tracking solution could be costing you thousands in monthly attributed affiliate-driven revenue? Seriously. Cookies and coupon codes fail to capture nearly a third of partner-driven sales due to browser privacy caps, ad blockers, cross-device browsing, and unused checkout codes.

87%* of affiliate tracking solutions on Shopify’s App Store rely exclusively on cookies and codes. That means the tool you are using to track affiliates is hurting your visibility.

Use our calculator to estimate how much “dark revenue” your affiliate program may be underreporting.

Start from an example brand

Your program

$
What your affiliate platform reports as attributed sales today.

Traffic & buyer behavior

About 31% of US web traffic. Safari caps link-tagged cookies at 24 hours.
Most Safari buyers convert within a day. Raise this for considered purchases with a longer decision window.
20–40% on desktop ecommerce, higher for tech, gaming and younger shoppers.
60%+ of purchase journeys touch more than one device. This is the share where the click and the checkout happen on different devices.
Near zero for US-only stores. Opt-in regions like the EU often see under 50% acceptance.

Discount codes

Creator programs that lean on codes instead of links sit higher.
15–25% in creator campaigns, from in-app browsers, device switches and forgotten codes.

Refersion Tracking

Refersion's tracking reports 95–99% accuracy. Defaults to the low end.
Estimated partner revenue going uncredited 0% untracked
$0/ month
Uncredited per year
—
Real partner sales per month
—
Commissions partners missed per year
—

Where the revenue drops out

Monthly. Each loss applies to the sales still tracked after the step above it.

What Refersion Tracking changes

Cookies & pixels Today
0%
Refersion Tracking After
0%

Learn about Refersion's First-Party tracking
Methodology and sources

The calculator treats your tracked revenue as what survives a series of independent leaks. Each leak removes a share of the real partner-driven sales. The shares combine multiplicatively, so the same sale is never counted twice.

Safari loss      = Safari share × share buying after 24h
Ad-block loss    = desktop share × ad-blocker rate
Cross-device     = device-switch rate
Consent loss     = consent decline rate
Code loss        = code-only share × non-redemption rate

Tracked share    = Π (1 − each loss)
Actual revenue   = tracked revenue ÷ tracked share
Uncredited       = actual − tracked
With Refersion Tracking = actual × Refersion Tracking accuracy

Defaults sit at or below the midpoint of each benchmark. The device-switch default (10%) is well below the 60% multi-device journey figure, because many of those journeys still end on the device that clicked. Code non-redemption only applies to sales credited by code alone, since link-tracked sales already count in the other rows.

VariableBenchmarkSource
Safari cookie expiryScript-set cookies capped at 7 days, or 24 hours when arriving from a link with tracking parameters. Safari is ~31% of US traffic.Apple WebKit ITP 2.1
Ad-blocker suppression20–40% of desktop ecommerce sessions. 250M+ desktop and 580M+ mobile devices block ads globally.Blockthrough / PageFair
Client-side blind spotCookie and pixel tracking misses 30–40% of conversions; server-to-server restores 95–99% accuracy.Cometly; Elevar
Creator code non-redemption15–25% of referred buyers don't enter the code.Influee; Influencer Hero
Cross-device journeys60%+ of purchase paths involve more than one device.Think with Google / Ipsos

Estimates are directional and depend on the inputs above. They are not a measurement of any specific store's tracking.

Refersion · First-party affiliate tracking for ecommerceBenchmarks cited in Methodology and sources

The Impact of Attribution Gaps

Attribution gaps in your affiliate marketing efforts present a number of significant challenges to brands looking to scale their business. While on the surface, reduced affiliate attributed revenue may appear like a potential savings on commissions, there are actually significant negative repercussions that can directly impact your ability to grow your business.

Refersion’s tracking ensures brands accurately measure their affiliate marketing investments.

Learn more about our first-party tracking

Here are some of the main reasons attribution gaps occur and their impact:

  • Fewer, Weaker Partnerships Known attribution gaps and tracking limits make it difficult to attract and keep high quality affiliates.
  • Lower Attributed ROI The return on investment of your affiliate marketing efforts will appear far lower that reality
  • Discounted Overall Performance Affiliate marketers will be left battling for a seat at the table as their channel seems to drive little impact
  • Messy Business Analytics Increases in unattributed revenues make it difficult for businesses to know what levers they can pull to scale

*An in-depth review of the documentation of the top 23 affiliate marketing tools listed on Shopify’s app, as determined by installation volume, store showed 20 exclusively relied on cookies and coupons.