The calculator Price in, kept amount out
what the buyer pays
your platform + processor's all-in cut. This varies by platform, country and channel (and some add a fixed fee too), so enter YOUR current rate from the platform's own pricing page.
flat per-sale charge, e.g. £0.30–£0.50; 0 if none
What you keep
Knowing your kept amount before you set a price is the first move in Digital Products: Basics →
How to read it The price is never the payout
When someone buys a £19 file, £19 does not land in your account. The platform takes a percentage, the payment processor takes its slice, and some platforms add a flat charge on top of every sale. What you keep, after the fees you enter, is the number to build your pricing on. (It's before tax and any refunds — those are separate, and yours to account for.)
You keep — the percentage — is the one to watch as your price moves. A fixed fee barely dents a £40 product but takes a real bite out of a £4 one. That is why two products with the same headline price can leave you with very different amounts once the fees clear.
The formula, in full
Fees per sale = price × (fee ÷ 100) + fixed fee. What you keep = price − fees. You keep (the percentage) = kept ÷ price × 100. That is the whole thing — no hidden steps. Enter your platform's own all-in rate and the calculator does the rest.
A worked example
Sale price £19, an all-in platform fee of 10%, and a fixed fee of £0.50. The percentage part is £19 × 0.10 = £1.90, plus the £0.50 flat charge, so fees are £2.40. That leaves you £16.60 — you keep 87.4% of the sale. The other 12.6% went to the platform and the processor before you saw a penny of it.
Edge cases the calculator handles
- A low price with a fixed fee. A £3 product with a £0.50 flat charge loses that £0.50 before any percentage — so the fixed fee alone already takes a sixth of the sale, and the kept percentage drops far below what the same fee does to a £30 product. Cheap products feel the flat fee hardest.
- A price of £0 or less has no sale to split, so every line shows "—" rather than a nonsense figure.
- No fixed fee? Enter 0 and the calculator works from the percentage alone.
Common questions
What fee percentage should I use?
Use your platform's all-in rate — the platform's cut plus payment processing, as a percentage of the price. Platforms differ in how they present it: some bundle card processing into one headline percentage, while others quote a lower platform fee and add processing separately, so the true all-in figure is higher than the number they lead with. Read the platform's own pricing page for the current number — not a comparison article, which is often out of date or wrong — and enter your rate here.
Should the fixed fee include payment processing?
Only the flat part of it. Many processors charge a percentage and a small fixed amount per transaction (something like a few pence plus a percent). Put the percentage part in the fee box and the flat part in the fixed-fee box. If your platform rolls everything into one percentage, leave the fixed fee at 0.
Is this my profit?
No — this is the fee side only. What you keep here is what the platform pays out; your actual profit also depends on refunds and your own costs, such as tools, ads and the time it took to make the product. Treat the kept amount as the ceiling, then subtract everything else.
Is this financial advice?
No. It is arithmetic on numbers you enter. What you earn depends on your platform, your product and your buyers — none of which this box controls. It just shows you, honestly, how much of each sale survives the fees.
It is one tool from Digital Products — Basics, the first of three ePORTS books that take you from your first product to a durable range with steady, independent sales.
Get the full Digital Products series →