THE USEFUL ANSWER
A percentage is incomplete without its denominator. Define the eligible transactions and deductions before comparing commission rates or calculating the expected invoice.
- Do not assume every provider uses the same meaning of net.
- Separate total account receipts from sales attributed to a service.
- Reconcile adjustments using the actual agreement and billing period.
Write the money path in plain language
Before comparing a commission, describe how money moves from a transaction to the amount eligible for the service fee. Identify receipts, any agreed deductions, attribution rules and adjustments. Each step needs a definition from the applicable agreement.
“Net revenue” can refer to different stages of that path. It might mean after a platform deduction, after refunds, or another contractually defined amount. Do not silently translate it into whatever your own spreadsheet normally calls net.
The pricing worksheet gives you a place to record the definition beside the rate. A screenshot of the headline percentage is not a substitute for that definition.
Compare two denominators with one rate
Take an illustrative month with $10,000 of receipts and an assumed $2,000 deduction. This assumption is for explaining the calculation; it does not assert a platform’s current fee policy.
A 20% service fee on gross receipts is 0.20 × $10,000 = $2,000. The same rate on the $8,000 remaining after the assumed deduction is 0.20 × $8,000 = $1,600. The difference is $400, despite identical headline rates.
| Calculation stage | Gross-basis example | Post-deduction example |
|---|---|---|
| Receipts | $10,000 | $10,000 |
| Assumed deduction before service fee | Not used in the fee base | $2,000 |
| Service fee base | $10,000 | $8,000 |
| Service rate | 20% | 20% |
| Service fee | $2,000 | $1,600 |
The order of deductions matters. If an agreement calculates one fee after another, reproduce that order rather than simply adding their percentages together.
Separate attribution from deductions
Suppose only $3,000 of the post-deduction sales in another hypothetical arrangement are attributed to an AI service. A 20% fee on that eligible amount is $600. It would be incorrect to apply the rate to all $8,000 merely because the total appears in the same account dashboard.
Ask what event establishes attribution, whether more than one operator or tool can receive credit, and which sales types are included. A transaction following an AI-generated reply is not automatically chargeable under every provider’s terms.
Also ask whether the fee applies to a creator, an account, a team or an aggregated portfolio. Mixing a per-account fixed charge with a portfolio-wide percentage can distort a multi-creator budget.
Reconcile an invoice with a small ledger
For a sample billing period, keep transaction references, eligible amounts, adjustment references and the resulting service charge. Avoid copying subscriber names or message content into a financial worksheet when a transaction reference is sufficient.
Check a few normal transactions and any refunds or reversals. Determine whether adjustments change the original period, create a credit in the next period or follow another stated process. Do not assume a reversal automatically reverses every associated fee.
If the invoice cannot be reproduced from the agreement and the available report, ask the provider for the missing definition before treating the discrepancy as an error. Sometimes the problem is timing or rounding; sometimes the underlying fee base was misunderstood.
Put comparable figures into the calculator
Once the denominator is clear, use the cost calculator with an eligible sales figure matching the rate. If two alternatives use different bases, calculate their fees separately before making a combined comparison; a single common sales input cannot represent incompatible definitions.
The total-cost guide adds labour and fixed charges. The sensitivity guide shows how the decision changes as review time or eligible sales changes.
Keep the original wording of the agreement in your private procurement record. A simplified label such as “20% net” may be convenient in a chart, but it should always lead back to a precise definition that another person can verify.
Sources & editorial notes
Primary references checked on 10 September 2026. Calculations and proposed workflows are our editorial examples, not independently observed provider results.