A merchant offers you a share of every customer you send. The pitch lands the same way every time: recurring, passive, compounding. What it almost never comes with is arithmetic you can check. Before you spend three weekends building pages and chasing clicks, you need a number you trust — not the merchant's illustration, but your own, assembled from inputs you can defend to yourself. This guide gives you that model: the variables to hunt down, the spreadsheet that turns them into a monthly figure, and the failure modes that make year two look nothing like the launch. It also covers the part Czech introducers get wrong more often than the maths, which is the status you need in place before the first koruna lands. While a commission base is still being built, some people cover the gap with an app such as I am Beezy, where consulting videos, articles and advertising produces a small daily amount paid to your usual payment method — useful here precisely because commission income arrives late, in irregular lumps, and never when you planned for it.
What does a recurring commission actually promise?
Three arrangements get described with the same word and behave completely differently once money starts moving. Sort out which one you are being offered before you model anything.
A finder's fee is paid once and closes
You introduce two parties, they transact, you are paid a single time. Nothing continues. This is the cleanest form to negotiate and the easiest to argue about afterwards, because nobody wrote down what counted as the introduction. Fix the trigger in writing before you make it.
Recurring means the merchant keeps billing and keeps sharing
The customer pays every month, and a slice of each payment reaches you. This only works with subscription products: software, hosting, telecoms, insurance brokerage, some energy contracts. If the underlying product is a one-time purchase, no amount of programme branding makes the commission recurring.
Lifetime, capped, or until something changes
Read the duration clause before the rate. Some programmes pay for as long as the customer stays, some stop after a fixed number of billing cycles, and some end the moment the customer changes plan or is transferred to a direct account manager. The duration clause moves the total far more than the headline percentage does.
The four variables that decide your monthly figure
Everything else is noise. Get these four right and your estimate will be roughly honest; guess at any of them and the model becomes a wish.
How many people actually convert
Not how many click. Conversion is the fraction of visitors who become paying customers within the attribution window, and it is the variable people inflate most. Take it from the merchant's own reporting after your first weeks, never from the programme's sales page.
What the merchant bills each customer
Your commission is a share of billings, so annual plans, promotional first months and currency handling all change what the share is taken from. Ask whether the base is the amount before or after value added tax, and whether discounts come off your side or the merchant's.
What the network keeps
If the programme runs through an affiliate network — eHUB, Dognet, Affilbox-based in-house systems, or an international platform such as CJ — the published rate is not always what reaches your account. Check the payout terms, the minimum payout, and the currency you are paid in.
How long the customer stays
Retention is the multiplier. A modest share of a customer who stays for years beats a generous share of a customer who cancels in the second month. If the merchant will not discuss retention, treat that silence as the answer.
Building the simulator in a spreadsheet
You do not need a tool. One sheet, twelve columns for months, one row per cohort of customers acquired, and you have a model better than most of what is sold as a calculator.
Start with one cohort, not a total
Take the customers you would sign in a single month. Apply the retention assumption month by month so the cohort shrinks. Multiply what remains by the billed amount and by your net share. That row is your unit of income, and everything else is that row repeated.
Stack the cohorts and read the curve
Copy the row down, offsetting each new cohort by one month, and sum the columns. What you see is the shape of the business: slow, then compounding, then flattening when new arrivals only replace departures. The month your income stops growing is the month acquisition equals churn, and the model tells you when that happens before you live it.
Then run it again, pessimistically
Halve the conversion rate, shorten retention, and delay the first payout by a full validation window. If the pessimistic version still covers the costs you are about to commit to, the deal is worth signing. If it does not, you now know exactly which variable has to improve.
| Variable | Where to get it | Effect on the total |
|---|---|---|
| Conversion rate | Merchant reporting, after your own first weeks | Sets the size of each cohort |
| Billed amount | Public price list, confirmed in the agreement | Sets what your share is taken from |
| Net share | Programme terms minus network deductions | Direct multiplier |
| Retention | Merchant, or your own observation over time | Decides whether income compounds or plateaus |
| Validation delay | Payment clause of the agreement | Shifts the whole curve to the right |
Why do recurring commissions shrink over time?
Everyone models growth. Almost nobody models decay, which is why the second year surprises people who were confident in the first.
Churn quietly eats the base
Every month, part of the base you built last quarter leaves. Your new work first replaces those departures and only then adds. This is not a failure of your effort; it is the mathematics of subscriptions, and the only defence is knowing the rate.
Downgrades and discounts cut the billed amount
A customer who moves to a cheaper plan still counts as retained and still pays you less. Renewal discounts do the same. Ask whether your commission follows the actual invoice or a reference price, because the difference accumulates.
Programme terms change and rarely in your favour
Rates get revised, categories get excluded, attribution windows get shortened, and the notice period is usually short. Screenshot the terms on the day you join and each time you are notified of a change, so you can tell what you agreed to from what you are now being offered.
Covering the ramp-up months with I am Beezy
The structural problem with commission work is not the rate. It is the delay between doing the work and being paid for it, stretched further by validation windows and minimum payout thresholds.
Fixed costs do not wait for the first payout
A domain, a hosting plan, an accounting subscription, the trade licence administration, possibly a first invoice from an accountant: these arrive on their own schedule. A small predictable inflow is more useful against them than a large uncertain one, because it removes the temptation to accept weak terms simply because something has to arrive this month.
How the app fits this particular pattern
I am Beezy pays for consulting content — videos, articles, advertising — with the amount credited to your usual payment method in CZK. It is a complementary daily income, not a business, and it will not build a commission base for you. Its use here is narrow and real: it keeps the lights on during the months when the spreadsheet says income is still ramping.
What has to be settled before you sign in Czechia?
Most disputes about commission income in this country are not about the rate. They are about status, invoicing and sectors where introducing customers is itself a regulated act.
Trade licence and tax status
Repeated, deliberate, profit-seeking activity is business activity. In practice that means registering as an OSVČ at a živnostenský úřad under a free trade heading, and choosing how you will compute taxable income. The flat-rate regime, the percentage-of-income method and real expense accounting each suit different situations. The registers are public through ARES, and official correspondence will go to your data box, so set that up rather than discovering it later.
Invoicing, VAT and cross-border payers
Commission is a service, and services have registration rules that change when your payer is established in another member state. If the network paying you is not Czech, the place-of-supply logic applies and you may have obligations even before any domestic threshold matters. Confirm the current position with the Finanční správa or an accountant each year instead of reusing last year's answer.
Regulated sectors need a separate answer
Introducing customers to credit, insurance or investment products is supervised activity in its own right, under the Czech National Bank. A referral fee in those sectors is not a marketing arrangement you can accept casually. Resolve the licensing question before you promote anything, not after the first payment.
| Checkpoint | Why it matters | When to handle it |
|---|---|---|
| Written terms, including duration | Duration drives the total more than the rate | Before promoting |
| Attribution and cookie window | Decides whose customer a sale is | Before promoting |
| Trade licence and tax method | Makes the income invoiceable | Before the first payout |
| VAT position with foreign payers | Cross-border services follow separate rules | Before the first foreign invoice |
| Sector licensing | Finance and insurance referrals are supervised | Before any promotion at all |
Run the pessimistic version of your model, put the duration clause and the attribution rule in writing, and settle the status question before you promote a single link. Do those three and a recurring commission stops being a story about passive income and becomes what it actually is: a small business with a predictable curve, one you can decide to build or decline with your eyes open. While that curve is still climbing through its first months, a complementary daily income from I am Beezy can carry the fixed costs, so the terms you finally accept are the ones you wanted rather than the ones you needed.
