- Enter the plan price
Use the amount collected per successful billing event.
- Enter monthly payments
Count successful subscription charges, not total active accounts if billing intervals differ.
- Add the percentage fee
Enter the processor or marketplace percentage charged on revenue.
- Add fixed and platform fees
Include the per-payment charge and recurring monthly account fee.
- Review total and net revenue
Use the effective rate to compare fee structures at your expected volume.
Subscription Fee Estimator
This estimator totals the recurring and transaction-based fees charged on subscription revenue.
It is useful for comparing billing providers, forecasting net collections, and seeing how fixed per-payment charges affect lower-priced plans or high transaction volumes.
Enter your values
Result
—
Estimated monthly fees
Gross subscription revenue—
Effective fee rate—
Net revenue after fees—
Gross revenue = Subscription price × Successful payments
Total fees = (Gross revenue × Percentage fee) + (Payments × Fixed fee) + Platform fee
Net revenue = Gross revenue − Total fees
The model assumes one payment at the entered price for every successful transaction and excludes taxes, refunds, chargebacks, and currency conversion.
What the result means
The result is the estimated total fee expense for one month at the entered payment volume.
Provider pricing can include tiers, minimums, international surcharges, or separate tax fees that require additional adjustments.
Given
A service collects 1,200 monthly payments of $29. Fees are 2.9% plus $0.30 per payment and a $99 platform fee.
Calculation
Gross revenue = $29 × 1,200 = $34,800.
Fees = ($34,800 × 0.029) + (1,200 × $0.30) + $99 = $1,468.20.
Result
Estimated monthly fees are $1,468.20, leaving $33,331.80 before other costs.
Does the result include failed-payment fees?
No. Enter only successful payments. Add expected retry or failure charges to the monthly platform fee if your provider bills them separately.
How do annual subscriptions fit this model?
Use the annual price and the number of annual charges processed during the month. Do not divide the price by 12 unless the customer is actually billed monthly.
Are refunds deducted?
No. This model estimates processing fees on successful charges. Refund costs and returned revenue should be analyzed separately.
Why does the fixed fee matter more for cheap plans?
A fixed charge consumes a larger share of a low transaction amount, increasing the effective fee rate.
Can I compare two processors?
Yes. Run the calculator once for each fee schedule at the same price and payment volume.