Why the same commission rate means something different in every niche

The headline percentage on an affiliate programme is close to meaningless on its own, because average order value, purchase frequency and cookie window vary so much between verticals that identical rates produce wildly different earnings per visitor. A 5% travel commission on a €1,200 family holiday booking pays more per conversion than a 20% commission on a €15 gardening accessory, while a 25% SaaS commission that recurs monthly for two years can out-earn both — eventually. Niche also decides how much operational overhead a site takes on: a finance affiliate now sits inside a genuine compliance regime, while a home-and-garden affiliate mostly just needs decent product photography and seasonal timing.

This sub-pillar compares the four verticals that carry most European affiliate traffic — travel, SaaS, finance and home & garden — on the terms that actually determine income, and sets out a practical way to choose between them. It sits alongside affiliate networks, which covers the networks these programmes run on, rather than the programmes themselves.

Rates and cookie windows are illustrative ranges drawn from published programme terms in mid-2026; individual advertisers vary and should be checked directly before signing up.

Travel: the highest order values, the trickiest tracking

Travel affiliate programmes pay on some of the largest transaction values of any vertical — a single family booking can be worth hundreds or thousands of euros — but the headline commission percentages are correspondingly modest, and the tracking mechanics can undercut even a modest rate.

Why tracking matters more here than the rate

Booking.com, the largest single travel advertiser most European publishers will encounter, is available through both Commission Junction and Awin but uses session-based tracking on much of its inventory rather than a multi-day cookie: the booking generally has to complete in the same session the click happened in, which penalises the normal travel-research pattern of clicking a link on one device and booking days later on another. Niche operators behave differently and often reward publishers better for exactly that reason — tour and activity marketplace 12Go runs a 30-day cookie against a reported 50% revenue share, and adventure-travel operator G Adventures runs a 90-day cookie against a smaller 5% commission, which suits content that influences a booking made weeks after the visit.

What this means for site selection

A travel site's real earnings depend far more on whether its readers book immediately or research-and-return later than on the commission percentage printed on the network dashboard. See the best travel affiliate programmes in Europe for 2026 for a fuller comparison across OTAs, niche operators and travel insurance.

SaaS: where recurring commission changes the maths entirely

SaaS is the one major vertical where the standard payment isn't a one-off transaction fee but a recurring share of subscription revenue, which is why it behaves differently from every other niche in this comparison.

A competitive SaaS affiliate rate in 2026 sits around 25–30% recurring — programmes paying under 20% need high referral volume to be worthwhile, and rates above 40% are usually reserved for high-margin tools defending market share. HubSpot's affiliate programme is widely reported to pay 30% recurring commission for up to twelve months per referred customer, which rewards publishers whose readers convert on evaluation content rather than impulse. Semrush runs the opposite model — a flat CPA (commonly cited around $200 per qualifying subscription, plus a smaller reward for trial activations) with a long cookie window, which suits a publisher who wants predictable per-conversion income rather than a slow-building recurring balance. European vendors including Brevo (France) and GetResponse (Poland) also run affiliate programmes aimed squarely at marketing-tool reviewers, often blending a recurring element with a sign-up bonus.

The trade-off publishers accept with SaaS is patience: recurring income starts small and builds, so a new site chasing quick revenue will feel SaaS is slow compared with a fixed-CPA finance deal — even though, over eighteen months, the recurring programme frequently pays more per referral. SaaS affiliate programmes worth joining in 2026 breaks this down programme by programme, and recurring commission covers the lifetime-value maths in full.

Finance pays the most per click of any niche in this comparison — and demands the most in return. A publisher that treats a finance affiliate deal like a retail one is the publisher a regulator notices first.

Finance: the highest CPAs, and the highest compliance bar

Finance affiliate programmes pay some of the largest fixed amounts per conversion of any vertical in Europe, but 2026 has brought real regulatory teeth to how those conversions can legally be promoted, and a publisher entering this niche needs to understand both sides.

What the money looks like

Trading and investment platforms pay on a different scale to retail affiliates: eToro's partner programme, one of the better-documented in the sector, is reported to offer tiered fixed CPA payouts — around $250 per qualified trader in top-tier markets such as the UK and Germany, scaling down for lower-tier geographies — alongside an alternative revenue-share model paying up to roughly a quarter of the trading revenue a referred customer generates, with qualification typically requiring identity verification and a minimum deposit or trading activity rather than simple sign-up. Awin also carries a substantial finance vertical spanning credit cards, insurance comparison and consumer credit, generally on more conventional CPA or CPL terms.

What the compliance actually requires

In the UK, the Financial Conduct Authority treats affiliate content promoting a regulated product as a financial promotion that must be issued or approved by an FCA-authorised firm, and 2026 has seen coordinated enforcement — including a UK court sentencing several unlicensed "finfluencers" in February 2026, and an FCA-led international action against illegal financial promotion involving seventeen regulators announced in April 2026. In the EU, the Markets in Crypto-Assets Regulation (MiCA) now brings crypto-asset marketing under a comparable promotion regime. Practically, this means a finance affiliate is expected to carry proper risk disclosures, avoid guaranteeing returns, and keep a paper trail showing the advertiser approved the content — not just drop a tracking link into a blog post. See finance affiliate programmes in the EU for what to check before signing up.

Home & garden: low rates, low friction, real seasonality

Home & garden sits at the opposite end of the compliance and payout scale from finance — commission rates are modest and there is no regulator monitoring the content, which makes it the easiest of the four niches to enter but also the least lucrative per conversion.

Published rates cluster low relative to travel and SaaS: general homeware and garden retailers in Europe commonly pay somewhere in the 3–10% range, with some — reportedly including French DIY retailer Castorama — using a cost-per-lead model rather than commission on sale, and Netherlands-based marketplace VidaXL running around a 5% rate typical of the category. Specialist niches within the vertical do better: seed and plant specialists have been reported paying up towards 20–25%, well above general homeware, because margins on consumables are higher than on furniture or hard goods.

What home & garden lacks in per-conversion value it partly recovers in volume and seasonality — spring and early summer drive garden-product traffic, and Q4 drives interior and gifting traffic, giving a well-timed content calendar two strong selling windows a year rather than one. It also suits smaller or newer sites better than finance or SaaS, since neither KYC-style verification nor recurring-payment infrastructure stands between a click and a payout. Home & garden affiliate programmes for European sites has the fuller retailer-by-retailer comparison.

Choosing a niche: match the traffic you have, not the rate card you like

The practical mistake is choosing a niche by its best-case commission rate rather than by what a site's existing readers actually do, and the four verticals above reward almost opposite reader behaviours.

• If readers are researching a single, near-term purchase (a holiday, a sofa), travel and home & garden convert well but pay modestly per visit — volume has to carry the income.
• If readers are evaluating a tool they'll use for years, SaaS's recurring model rewards the wait with compounding income that a one-off niche can't match.
• If a site already reaches an audience that trusts it on money matters, finance pays the most per conversion — but only a publisher prepared to run a proper compliance and disclosure process should take it on.
• Most established European sites eventually run more than one niche side by side, using a network such as those covered in affiliate networks to manage several verticals through a single relationship rather than juggling direct deals with every advertiser.

Niche choice also isn't permanent: a site that starts in home & garden for its low barrier to entry can add a SaaS recurring deal once it reviews tools for its own trade readers, or add finance content once it has the traffic and editorial discipline to do so responsibly. The programmes change faster than the underlying logic — check current terms on the affiliate networks a site already uses before assuming last year's rate still applies.

Quick answers

Which niche pays fastest for a brand-new site?

Home & garden and general travel affiliate programmes typically approve new sites fastest and pay on the shortest cycle, because neither requires the KYC-style verification or compliance review that finance programmes increasingly apply, and neither depends on the slow build-up of recurring SaaS income.

Can a site run programmes in more than one niche at the same time?

Yes, and most established European affiliate sites do — a home-improvement blog might run home & garden retailers directly, a travel programme for holiday-related content, and a SaaS recurring deal for the tools it uses to run the site itself, often through the same network account.

Do finance affiliate rules apply to a small blog, or only to full-time publishers?

They apply regardless of size. The FCA and equivalent EU regulators assess financial promotions by content and audience reach, not by publisher size, so a small blog promoting a regulated trading or credit product carries the same disclosure obligations as a large comparison site.