Affiliate marketing works like this: you share a unique tracking link, someone clicks it, a cookie logs that click on the merchant’s server, they buy before the cookie expires, and the network credits the sale to your account. The merchant pays you a commission, usually a percentage or flat fee, on a set payout schedule.
A few years back, I watched a brand-new affiliate try to explain the whole system to her mastermind group in about ninety seconds. She got the click and the cookie right, then lost everyone at the payout schedule. That’s normal. Most explanations either flatten affiliate marketing into “you get paid for referrals” or bury you in network jargon before you’ve clicked a single link.
This post walks the whole chain in order: the click, the cookie, the commission, and the payout, with real numbers at each step. By the end you’ll know exactly what to expect the first time you check a dashboard and see a number that doesn’t match what you thought you’d earned.
What happens the second someone clicks your affiliate link?
Your affiliate link routes the click through the merchant’s tracking software before it lands on their site, and that redirect is what drops a cookie on the visitor’s browser or logs the click on the merchant’s server. Everything else in affiliate marketing depends on that one handoff working.
The link itself usually looks ugly on purpose. Something like mattmcwilliams.com/go?ref=48291, with a string of numbers or letters that identifies you specifically. When someone clicks it, they get bounced through a tracking domain for a fraction of a second, invisible to them, and land on the merchant’s actual page. During that bounce, the tracking software writes a small file (the cookie) to their browser that says, in effect, “this visitor came from affiliate 48291.”
You don’t need your own audience built up for years before this works, either. You need a link and somewhere to put it, whether that’s a single email, a social post, or a video description.
If you want the deeper mechanics of pixels versus cookies versus server-to-server tracking, I broke that down in a full post on how affiliate tracking works. For this post, the part that matters is simpler: the click has to get logged before the sale happens, or nothing downstream pays you a dime.
How long do you have to close the sale?
You have as long as the cookie window lasts, and the merchant sets that window, not you. Amazon’s cookie runs 24 hours. Most SaaS and course affiliate programs give you 30 to 90 days, and a handful of generous programs stretch well past that.
FirstPromoter, a SaaS affiliate platform, runs a 120-day cookie, the longest I’ve seen among the tools I track closely. Compare that to Amazon, where if someone clicks your link on Monday and buys the following Wednesday, you’re out of luck. A short cookie punishes anything that isn’t an instant, impulse buy. A long one gives you credit for planting the seed on a $2,000 course someone buys six weeks later, after three more visits and a webinar.
Two things break this window besides time. First, if the visitor clears cookies, switches devices, or opens a private browser window before buying, the merchant can lose the trail entirely, even inside the window. Second, whoever clicks last usually wins under standard last-click attribution. If your reader clicks your link on Tuesday and someone else’s link on Thursday, then buys on Friday, the other affiliate gets the sale in most programs. It’s not personal. It’s how the software resolves conflicts.
I go deeper on what counts as a good cookie window and how to evaluate a program by its length here, since it matters more than most beginners realize when they’re picking what to promote.
How much commission do you earn per sale?
Commission comes in three shapes: a percentage of the sale, a flat dollar amount, or a recurring cut of a subscription, and the number swings enormously by industry. Software and SaaS programs commonly pay 20% to 60% recurring. Physical products through Amazon Associates generally pay 1% to 10%. Course and coaching launches often pay 30% to 50% of a single payment.
Real examples make this concrete. Systeme.io pays 60% lifetime recurring commissions, meaning you keep earning every month a referred customer stays subscribed, for as long as they stay subscribed. Shopify pays a flat $150 for every merchant you refer who signs up for a paid plan, regardless of what that merchant eventually spends. HubSpot has paid out more than $100 million in affiliate commissions total, running a plain percentage model on top of its own subscription tiers.
Recurring commissions change your math completely. A $50-a-month tool paying 30% recurring is worth $15 a month per customer, but if that customer stays two years, you’ve earned $360 from one referral without doing anything else. A one-time $50 flat commission on a $500 product looks smaller on paper and can pay you faster and more predictably.
If you’re still deciding what to promote and how to structure your first push, start with the free Affiliate Marketing QuickStart Guide. It covers how to get accepted into programs, the step-by-step method for your first sale, and copy-paste email templates so you’re not starting from a blank page.
What is EPC, and why should it matter more to you than the commission rate?
EPC stands for earnings per click. Take your total commissions, divide by your total clicks, and multiply by 100. A program with a lower commission rate but a higher EPC often pays you more per visitor than a program with a flashy percentage attached to a page nobody buys from.
Here’s what that means in practice. Send 200 clicks to a program with a $30 EPC and you’ll clear roughly $60. Send those same 200 clicks to a program advertising a 50% commission but running a $4 EPC, because the sales page is weak or the offer doesn’t fit your audience, and you clear about $8. The bigger number on the affiliate program’s landing page told you nothing about what you’d earn.
EPC is also the number that tells you whether your traffic and the offer fit. Send finance-curious readers to a supplement offer and watch your EPC crater, even if the commission rate looks generous. Send those same readers to a budgeting app with a mediocre commission and watch EPC climb, because the match is right.
I cover how to calculate and compare EPC across programs in more detail here, including what counts as a healthy number by niche.
EPC is exactly why small affiliates regularly out-earn people with ten times their traffic. The 7 Secrets of Overachieving Affiliates report breaks down how affiliates with smaller lists consistently beat bigger ones in commissions and contest standings, and it comes down to exactly this kind of match between audience and offer.
When and how does the money hit your account?
Most affiliate programs pay on a net-30 or net-60 schedule, counting from the end of the month the sale happened, and almost every program sets a minimum payout threshold, commonly $50 to $100, before they’ll cut you a check or send a transfer.
That delay isn’t the program stalling you. It’s a holding period against refunds and chargebacks. If someone buys through your link and returns the product 20 days later, most programs claw that commission back before it ever pays out. A 30- to 45-day hold gives the return window time to close before the merchant commits to paying you. Recurring commissions work the same way month over month: you get paid for the customers still subscribed at the time the payout runs, not the ones who canceled.
Payment methods vary by program. PayPal and direct deposit are the most common, checks still show up occasionally on older platforms, and international affiliates sometimes get routed through Wise or a similar transfer service. None of this is set by you. It’s baked into whichever program or network you joined.
Should you promote through an affiliate network or go direct with the merchant?
A network like ShareASale, Impact, or CJ sits between you and hundreds of merchants at once, handles the tracking and the payout, and takes a small cut for doing it. Going direct means the merchant’s own software tracks and pays you, usually with a bigger commission and an actual relationship with a person instead of a dashboard.
Networks win on convenience. You sign up once, browse a catalog of programs, and get paid from one place even if you’re promoting a dozen different merchants. Direct programs win on payout and support. A merchant running its own affiliate program has every incentive to help you sell more, answer your questions fast, and hand you swipe copy, because your success is entirely their revenue.
In practice, most experienced affiliates end up with both: a network account for casual discovery, and a handful of direct relationships with the programs that pay their bills. I walk through how to evaluate a program either way, network or direct, in this guide, and this one covers where to find programs and how to get accepted once you apply.
Do you have to tell people it’s an affiliate link?
Yes. The FTC requires a clear, conspicuous disclosure any time you’ll earn money if someone buys through your link, and “clear and conspicuous” means readers see it before they click, not buried in a footer or a terms page nobody opens.
In practice this means a short, plain-language line near the top of a blog post or video description, something like “this post contains affiliate links, and I earn a commission if you buy through them, at no extra cost to you.” It doesn’t need to be dramatic. It needs to be visible.
Beyond the legal requirement, disclosure protects the one asset that drives your commissions long term: trust. Readers who know you’re recommending something you’d recommend anyway, disclosure and all, keep clicking your links for years. Readers who feel tricked click once and never come back.
Frequently asked questions
Can affiliate marketing work without a website?
Yes. You can run affiliate links through social media posts, email newsletters, YouTube video descriptions, LinkedIn posts, or a link-in-bio page. A website helps with SEO and long-term compounding traffic, but plenty of affiliates earn real money from a single platform, like a newsletter or a YouTube channel, with no website at all.
How many clicks does it typically take to get one affiliate sale?
It depends heavily on the offer, but a conversion rate of 1% to 5% of clicks is a reasonable range for a well-matched program. That means sending 100 clicks to a strong offer might produce one to five sales. A weak offer or mismatched audience can push that well below 1%, which is exactly what your EPC will show you.
What happens to your commission if the buyer returns the product?
Most programs reverse the commission once the merchant processes the refund. That’s why payouts hold for 30 to 45 days before releasing, giving the return window time to close first. If you’re promoting a product with an unusually high return rate, expect your paid-out total to run consistently lower than your dashboard’s “pending” number.
Can you use your own affiliate link to buy something for yourself?
Almost every program’s terms of service explicitly prohibit this, and most tracking software can detect it through matching IP addresses, payment details, or account information. Programs that catch self-referral commonly claw back the commission and can terminate your account entirely, so it’s not worth the small savings.
Do you have to pay taxes on affiliate commissions?
Yes, affiliate commissions count as taxable income in the United States, whether you receive a 1099 form from the program or not. The IRS generally requires a program to issue you a 1099-NEC once it pays you $600 or more in a calendar year, but you owe taxes on the income regardless of whether a form arrives.
What to do next
Pick one program with a commission structure and cookie window you understand, get your tracking link, and put it somewhere real, an email, a post, a video description. You don’t need five programs and a content calendar. You need one link doing real work while you learn how the whole chain behaves with actual traffic.
Then watch your EPC as closely as your commission rate once the clicks start coming in. It’ll tell you faster than anything else whether the offer fits your audience. If you haven’t landed your first sale yet, this post walks through exactly how to get there.
Once you’ve got a program picked and a link live, the fastest way to turn clicks into sales is a strong review. How to Write an Affiliate Product Review Post that Ranks and Converts walks through the exact structure that gets reviews ranking on Google and converting readers into buyers.
If you want the whole system laid out in one sitting, from picking an offer to earning without a product of your own, watch the free masterclass How I Currently Make $3,874 a Week Without Creating a Single Product. It walks through how to monetize from day one and includes a bonus report on turning that into consistent passive income.
Learn How My Resources Page Makes Me $10,000+ Each Month… and How You Can Create One Easily! Grab The Free Guide Here
