What this calculator measures
Affiliate commission is commonly calculated from approved transaction value multiplied by the program's commission rate. Returns, cancellations, invalid leads, coupon rules, category exclusions, and attribution conflicts can reduce final payable earnings.
This calculator applies an expected reversal rate to gross commission. It does not determine whether a transaction qualifies under a specific program, whether commission tiers apply, or when the network will lock and pay the transaction.
Common use cases
Use this model when the inputs describe the same decision, period and customer or product scope.
- Estimate gross and net affiliate commission from sales, commission rate, and reversal rate.
- Use the result with the recorded inputs: Average order value, Approved sales, Commission rate, Reversal or refund rate.
- Compare multiple scenarios before making a marketing decision.
Formula
Use approved sale values and expected reversals to avoid treating headline commission as final earnings.
Formula breakdown
- Eligible sales, commission rate and reversal assumptions should follow the program being modeled.
- Commission may apply to different bases under different programs.
Worked example
Eighty approved sales have an average order value of $120 and a 12% commission rate. Gross commission is $1,152. With a 6% reversal assumption, estimated net commission is $1,082.88, or about $13.54 per approved sale after modeled reversals.
Scenario comparison
$10,000 eligible sales at 20% commission gives $2,000 gross commission.
With an 8% reversal assumption, expected locked commission is about $1,840 before tiers or bonuses.
How to interpret the result
Use net commission per sale with traffic and conversion data to estimate earnings per click or visitor. Headline commission rates alone do not reveal whether a program is commercially attractive.
Compare programs using eligible order value, conversion rate, reversal rate, cookie and attribution rules, payment threshold, and time to payment. Verify current terms directly with the program or network.
What a good result looks like
A useful program produces attractive earnings after reversals, traffic cost and content effort.
Compare conversion, payout reliability and EPC as well as headline rate.
Common mistakes
- Applying commission to excluded taxes, shipping or products.
- Assuming every tracked transaction will lock and pay.
When this metric can mislead you
High commission can be offset by low conversion, short cookies, reversals or slow payment.
The calculator cannot determine attribution, policy compliance or program eligibility.
How to use the result in a decision
Use it to compare realistic expected earnings between programs.
Model conservative reversal and conversion assumptions before prioritizing promotion.
Assumptions and limitations
- Average order value represents commission-eligible value.
- The commission rate applies uniformly to modeled sales.
- Reversal rate is applied to gross commission as an estimate.
- Bonuses, tiers, caps, currency conversion, and network fees are excluded.