Where Affiliate Links Actually Work on Each Platform
Which surfaces take a clickable link, which programs forbid which placements, and the in-app browser problem that quietly costs creators commission.
Two different rulebooks apply to every link you post, and creators usually only read one.
The platform decides where a link can be clicked. The program decides where its links may be used at all. You can follow Instagram's rules perfectly and still be violating Amazon's.
#What's clickable, by surface
The short version, and it has changed enough that half the advice online is describing rules that no longer exist.
| Surface | Clickable? | Worth knowing |
|---|---|---|
| Instagram bio | Yes | Several links, no follower gate |
| Instagram Story sticker | Yes | No follower minimum - the 10k swipe-up rule is long gone |
| Instagram captions, Reels, comments | No | Plain text; "link in bio" exists because of this |
| TikTok bio | Yes | Depends on account type |
| TikTok captions | No | - |
| YouTube description | Yes | The most reliable clickable surface anywhere |
| YouTube pinned comment | Yes | Useful for Shorts, where descriptions get little attention |
| Pinterest pin destination | Yes | Affiliate links permitted, volume policed |
| Newsletter / email | Yes | But check the program - see below |
#The rules your program adds on top
This is the half people skip, and it is the half that closes accounts.
Amazon's Associates operating agreement is the strictest of the big programs, and its restrictions are absolute rather than discouraged. Its own wording:
You will not engage in any Promotional Activities in any offline manner, including by using any of our or our affiliates' trademarks or logos […] or any Special Link in connection with any printed material, ebook, mailing, or any oral solicitation.
Read that carefully, because it rules out places creators use constantly:
- Email and newsletters. An Amazon link in your newsletter is a violation, not a grey area.
- Ebooks and PDFs - including a free lead-magnet guide.
- Anything printed, and any spoken solicitation.
- Pop-ups, and links placed on Amazon itself - reviews, forums, wish lists.
Amazon also restricts framing its pages inside a WebView, and bids on its own trademarks are out.
#The leak nobody mentions
Here is the mechanic that costs more commission than any placement rule, and almost nothing written about affiliate links explains it.
A link tapped inside Instagram, TikTok or Facebook does not open in Safari or Chrome. It opens in a browser built into that app, and that browser keeps its own cookie storage - separate from the phone's real browser, and separate again from the retailer's app.
So the question that decides whether you get paid is not "did they tap" but "did they buy in the same session".
They didn't, if they:
- tapped, looked, closed the app, and came back to it later in Safari;
- tapped, then opened the retailer's own app to check the price;
- were signed in on the app but not in the in-app browser, and gave up at the login screen.
Short attribution windows make this worse. A 24-hour window, plus a reader who browses now and buys tonight in a different app, loses you the sale twice over.
You cannot fix this from your side. What you can do is stop fighting it:
- Link to the exact product, not a homepage or a category. Every extra tap is another chance to bail out and restart somewhere else.
- Post when people can act, not when engagement is highest. Those are often different times.
- Send them to one page that holds everything, so the journey is a tap and a buy rather than a search, a scroll and a change of app.
#Practical placement, per platform
Instagram. Use the bio links for the things that stay true for months - your storefront, not this week's post. Use the Story sticker for what's current. Because captions aren't clickable, the caption's job is to name the page, not to hold a URL.
TikTok. Your bio link is the only clickable surface, so it has to be a destination that stays relevant rather than one you swap daily.
YouTube. Descriptions are the strongest surface on any platform - clickable, permanent, and readable by search. Put the disclosure above the links, not below them. On Shorts, pin a comment as well; very few people expand a Short's description.
Pinterest. Affiliate links are allowed, and Pinterest's commercial content guidelines specifically warn against creating affiliate pins "repetitively or in large volumes", and against schemes where users save each other's affiliate pins. Volume is what gets flagged here, not the links themselves.
Newsletters. The best-converting surface for most creators - no algorithm between you and the reader - and simultaneously the one where you most need to check the program's terms. Amazon says no. Many networks say yes.
#A note on how fast this ages
Every rule above was checked on the date at the top of this page. Platform rules change more often than anything else here: follower gates appear and disappear, surfaces become clickable, programs rewrite their agreements without announcing it.
Two habits are worth more than any list:
- Re-read your main program's operating agreement once a year. It is dull and it is where the account-closing rules live.
- When you read a guide to this topic, look for the swipe-up rule. If it's still there, the page hasn't been touched since 2021.
Do I need 10,000 followers to add a link to an Instagram Story?
No. The old swipe-up feature required 10,000 followers, but it was replaced by the link sticker, which is available without a follower minimum. Any guide still quoting that threshold is out of date.
Can I put affiliate links in my email newsletter?
It depends entirely on the program. Amazon's operating agreement explicitly prohibits its links in any mailing, along with printed material and ebooks. Many affiliate networks permit email. Check the specific program's terms before sending.
Why do my clicks not turn into commission?
The usual cause is the gap between the tap and the purchase. Links tapped inside a social app open in that app's own browser, which stores the tracking tag separately from the phone's real browser and from the retailer's app. Buy in that session and it counts; come back later somewhere else and it does not.
Can I use a link shortener on affiliate links?
Sometimes. Some programs allow it, others prohibit cloaked or redirected links because they obscure the traffic source. It is a per-program rule, so read the terms rather than assuming.
Are affiliate links allowed on Pinterest?
Yes. Pinterest's commercial content guidelines permit them but warn against creating affiliate pins repetitively or in large volumes, and prohibit quid-pro-quo schemes around saving each other's affiliate pins.
Which platform surface converts best?
The one where the link is clickable, permanent and next to a reason to click. In practice that is usually a YouTube description or a stable page linked from a bio, because both keep working long after the post that sent someone there has scrolled away.
Nothing here beats reading your own program's terms, which is the only document that can actually cost you an account. This page is a map of where to look.
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