Affiliate Marketing Statistics 2026: 20 Data-Backed Insights

Affiliate marketing enters 2026 as a larger and more diverse performance channel than it was only a few years ago. However, many statistics repeated online combine different countries, years and definitions—or cite another blog instead of the original research. That makes impressive-looking numbers difficult to use for planning.

This article takes a stricter approach. The 20 statistics below come primarily from two recent datasets: the Performance Marketing Association’s 2025 study of the US affiliate industry and impact.com’s full-year 2025 benchmark of North American retail affiliate activity. Each number is accompanied by its scope and a practical interpretation.

Data note, updated September 2026: 2026 is still in progress, so complete full-year 2026 market data does not yet exist. “Affiliate marketing statistics for 2026” therefore means the latest complete evidence available for decisions being made in 2026—not invented projections presented as current results.

How to Read These Affiliate Marketing Statistics

The statistics come from datasets with different purposes:

• PMA Performance Marketing Industry Study 2025: reports US affiliate investment and ecommerce sales for 2024, changes since 2021, vertical allocation, ROAS and a publisher outlook survey. The research was produced by the Performance Marketing Association with London Research.
• impact.com 2025 Affiliate Benchmark: compares 2025 with 2024 across 2,368 same-store North American retail and shopping brands. The analyzed dataset covers nearly 1 billion transactions, more than $116 billion in GMV and over $10 billion in tracked transaction value.

These sources should not be treated as one global census. PMA describes the US market; impact.com describes a large North American retail sample from its own platform. The numbers are useful when their scope remains attached.

Affiliate Marketing Market Size and Growth

1. US Affiliate Marketing Spend Reached $13.62 Billion in 2024

US advertisers invested $13.62 billion in affiliate marketing during 2024, according to the PMA Performance Marketing Industry Study 2025.

Strategic insight: Affiliate is no longer a marginal channel that can be operated indefinitely through spreadsheets and informal agreements. At scale, programs need documented commission rules, reliable attribution, partner support and payout operations.

2. US Affiliate Spend Grew 49.8% Between 2021 and 2024

The same study found that investment increased from $9.1 billion in 2021 to $13.62 billion in 2024—growth of 49.8%.

Strategic insight: A growing channel also becomes more competitive. Brands are competing for productive publishers, placements and creator attention. Programs must offer more than a headline commission: tracking quality, conversion performance, clear terms and dependable payments influence partner decisions.

3. Affiliate Spend Recorded a 14.42% Compound Annual Growth Rate

PMA calculated a 14.42% CAGR in US affiliate investment from 2021 through 2024. The association reports that this growth rate was approximately twice that of the broader ecommerce market over the comparison period.

Strategic insight: Budget growth should be matched with operational capacity. Increasing recruitment without improving onboarding, creative support and measurement can produce a larger inactive-partner database rather than incremental revenue.

4. Affiliate Investment Generated $113 Billion in US Ecommerce Sales

The $13.62 billion in 2024 affiliate investment was associated with $113 billion in US ecommerce sales, according to PMA.

Strategic insight: Sales volume is important, but it is not the same as profit or incrementality. Program managers should also monitor margins, new-customer share, refunds, lifetime value and whether the partner influenced demand or simply appeared at the final click.

5. Affiliate Marketing Accounted for 9.4% of US Ecommerce Sales

PMA estimates that affiliate marketing generated 9.4% of all US ecommerce sales in 2024.

Strategic insight: At this level of contribution, affiliate data should be connected with the organization’s ecommerce, finance and customer reporting. It should not remain isolated in a marketing dashboard that cannot be reconciled with approved orders and revenue.

6. Companies Using Affiliate Marketing May Attribute 15%–20% of Sales to It

Among companies that actively use affiliate marketing strategies, PMA estimates that the channel contributes 15%–20% of sales.

Strategic insight: This is an estimate for participating companies, not a universal benchmark for every brand. A new program should not assume that share immediately. Product-market fit, partner mix, attribution rules, geography and program maturity all affect the result.

Return on Affiliate Investment

7. US Retail Affiliate Programs Generated an Average $11 in Sales per $1 Invested

PMA reports an average retail ROAS of $11 in ecommerce sales for every $1 of affiliate investment.

Strategic insight: ROAS is not the same as profit. The revenue figure does not automatically account for product cost, returns, platform fees, internal salaries, discounts or the value of customers who would have purchased without the partner. Define the numerator and denominator before comparing programs.

8. Travel Generated $19 in Sales per $1 of Affiliate Investment

Travel produced an average $19 in sales for every $1 invested, the strongest sector-level ROAS highlighted in the PMA summary.

Strategic insight: The result shows the strength of partners in research-heavy purchase journeys, but it should not be copied as a target for every travel brand. Booking values, cancellation rates, attribution windows and commissionable revenue differ substantially.

Affiliate Spend Is Diversifying Beyond Retail

9. Retail’s Share of US Affiliate Spend Fell from 76% to 63%

Retail remained the dominant affiliate vertical, but its share of investment declined from 76% in 2021 to 63% in 2024, according to PMA.

Strategic insight: A falling share does not mean retail affiliate marketing is shrinking. Total affiliate investment grew; other industries simply expanded faster. Software should therefore support different conversion events and economics rather than assume every program is a simple ecommerce CPS model.

10. Financial Services Increased Its Share from 12% to 15%

Financial services represented 15% of US affiliate investment in 2024, up from 12% in 2021.

Strategic insight: Finance programs often need more than a purchase pixel. Qualified leads, KYC status, first deposits, trading activity and CRM data may determine commission. Tracknow’s finance and IB affiliate software is designed around these more complex partner flows.

11. Travel Increased Its Share from 5% to 9%

Travel’s portion of US affiliate investment rose from 5% in 2021 to 9% in 2024.

Strategic insight: Travel illustrates why commission validation matters. Bookings can be cancelled or changed long after the initial conversion, so programs need clear locking periods and rules for reversals.

12. Telecommunications More Than Doubled Its Share to 7%

Telecommunications increased from 3% to 7% of US affiliate investment between 2021 and 2024.

Strategic insight: As affiliate adoption expands into subscriptions and services, programs need recurring commission logic, account-level attribution and integrations with billing or CRM systems.

Publisher Confidence and Channel Risk

13. 54% of Publishers Were Confident or Very Confident in Their Affiliate Business

In the publisher portion of the PMA study, 54% said they were confident or very confident about the future of their affiliate business.

Strategic insight: A small majority is positive, but the number does not suggest universal confidence. Brands should treat strong publishers as businesses exposed to search, platform, advertiser and payment risk—and give them transparent reporting and timely communication.

14. 69% Were Concerned About Google Changes and AI Overviews

69% of surveyed publishers said they were concerned that Google actions, including algorithm changes and AI Overviews, were reducing site traffic and affiliate revenue.

Strategic insight: Search-dependent publishers face concentration risk. Programs should recruit a mix of content sites, creators, newsletters, communities, comparison tools and other partner types rather than assuming yesterday’s organic rankings will remain stable.

15. 52% Planned to Experiment with New Forms of Promotion

In response to changes in discovery and traffic, 52% of publishers said they planned to experiment with new promotional formats.

Strategic insight: Advertisers can support that experimentation through approved short-form video assets, social tracking, unique coupons, deep links, email-ready materials and landing pages for different audiences. Teams working with creators should evaluate both content performance and attributable results through appropriate influencer tracking.

What North American Retail Affiliate Data Shows for 2026

The final five statistics come from the impact.com 2025 Affiliate Benchmark. Its 2,368-brand sample covers North American retail and shopping programs, so the results should not be generalized automatically to finance, SaaS, iGaming or other industries.

16. Clicks Rose 2% While Transactions Fell 5%

Across the same-store retail sample, affiliate clicks increased 2% year over year, but transactions declined 5% in 2025.

Strategic insight: More clicks did not translate into more immediate purchases. The report interprets this as a more research-heavy journey in which shoppers compared offers across partners before consolidating purchases. Evaluating every publisher only by last-click transaction rate can undervalue partners that influence consideration.

17. Affiliate Conversion Rates Declined 6%

Retail affiliate conversion rates fell 6% year over year in the impact.com dataset.

Strategic insight: A declining conversion rate does not always mean traffic quality has collapsed. It can reflect longer research behavior, changes in product mix, weaker offers or measurement gaps. Managers should segment performance by partner type, device, landing page, new-versus-returning customer and attribution coverage before changing commissions.

18. Average Order Value Increased 4%, from $118 to $123

Average order value rose from $118 in 2024 to $123 in 2025, an increase of 4%, even as transactions declined.

Items per order increased from 2.3 to 2.5 while average item value fell from $50 to $49. In other words, shoppers placed fewer orders but bundled more items into each checkout.

Strategic insight: Programs should evaluate partner contribution by approved revenue, margin and basket quality—not only by transaction count. Product-level and category-level reporting can show which partners generate valuable combinations.

19. Influencer Transaction Volume Grew 65%

Transaction volume generated by influencer partners increased 65% year over year, while their conversion rate improved 8% in the impact.com retail sample.

Strategic insight: Creator activity is increasingly connected with measurable commerce, but the model is not necessarily commission-only. Brands may combine content fees, usage rights, product compensation and performance commission. The platform must distinguish content deliverables from attributed sales.

20. Technology Partners Improved Conversion Rates by 25%

Technology-solution partners improved their conversion rates by 25% year over year, while their transaction volume grew 16%.

The report’s category includes solutions such as retargeting tools, banking integrations, embedded software and post-checkout offers.

Strategic insight: A modern affiliate program is not limited to bloggers and coupon sites. Technology partnerships can influence onsite experience and conversion, but they need incrementality testing, deduplication and clear rules governing when a transaction deserves commission.

Affiliate Marketing Statistics Summary

#	Statistic	Scope	Source
1	$13.62B affiliate spend	US, 2024	PMA
2	49.8% spend growth since 2021	US, 2021–2024	PMA
3	14.42% spend CAGR	US, 2021–2024	PMA
4	$113B ecommerce sales	US, 2024	PMA
5	9.4% of ecommerce sales	US, 2024	PMA
6	15%–20% of sales for companies using affiliates	US estimate	PMA
7	$11 retail sales per $1 invested	US retail	PMA
8	$19 travel sales per $1 invested	US travel	PMA
9	Retail share: 76% to 63%	US spend, 2021–2024	PMA
10	Finance share: 12% to 15%	US spend, 2021–2024	PMA
11	Travel share: 5% to 9%	US spend, 2021–2024	PMA
12	Telecom share: 3% to 7%	US spend, 2021–2024	PMA
13	54% confident or very confident	Publisher survey	PMA
14	69% concerned about Google and AI Overviews	Publisher survey	PMA
15	52% plan new promotion formats	Publisher survey	PMA
16	Clicks +2%; transactions −5%	North American retail, 2025 YoY	impact.com
17	Conversion rate −6%	North American retail, 2025 YoY	impact.com
18	AOV +4%, from $118 to $123	North American retail, 2025 YoY	impact.com
19	Influencer transactions +65%	North American retail, 2025 YoY	impact.com
20	Technology-partner conversion rate +25%	North American retail, 2025 YoY	impact.com

Five Strategic Priorities for Affiliate Programs in 2026

Measure the Customer Journey, Not Only the Final Click

Content, review and network partners may influence research long before another partner captures the final conversion. Use deterministic commission rules for payment, but analyze assists and earlier touchpoints through multi-touch attribution where data coverage is sufficient.

Connect Affiliate Reporting with Approved Business Outcomes

Recorded conversions should be reconciled with ecommerce, CRM, billing or backend data. Commission status must reflect refunds, chargebacks, duplicate events and qualification rules rather than treating every incoming event as final revenue.

Diversify the Partner Portfolio

The evidence shows both industry diversification and publisher pressure from search changes. Recruit partners for different roles: research, comparison, creator influence, direct referral, onsite technology and final conversion. If the business operates a multi-advertiser model, compare the operational capabilities required from affiliate network software.

Build Tracking Around First-Party and Server-Side Data

Do not base a growing program on a thank-you-page pixel alone. Pass durable click IDs, retain partner data in owned systems and send validated events through S2S postbacks. Tracknow’s guide to cookieless tracking explains how these components work together.

Evaluate Quality and Economics Together

Revenue and ROAS are useful, but they should be read alongside approval rate, margin, new-customer share, lifetime value, fraud signals and partner concentration. Commission structures should reward valuable outcomes without exceeding sustainable acquisition economics. Compare the main affiliate commission models before setting rates.

Statistics Removed from the Previous Version—and Why

The earlier draft included several numbers that are widely repeated online but were not linked to a traceable study with a clear year, sample and definition. They have been removed rather than presented as established facts:

• “45% of affiliate traffic is fraudulent”;
• “16% of US online orders come from affiliate links”;
• “9,600 companies operate affiliate programs globally”;
• “mobile affiliate spend grew 49% year over year”;
• “55% of affiliate clicks come from mobile”;
• the US, UK and Germany geographic share figures;
• the salary bands and number of affiliate job listings;
• the affiliate income distribution and $400,000 top-performer claim;
• the 69%, 67%, 64% and 41% traffic-source table;
• the $15.7 billion to $36.9 billion global market forecast.

Some of these claims may originate from older surveys or commercial forecasts, but without a stable primary source and methodology they should not be used as current 2026 benchmarks. Fraud, income and traffic-source percentages are especially sensitive to definitions and sample selection.

Frequently Asked Questions

How large is affiliate marketing in 2026?

There is no single audited global 2026 total. The strongest recent public US figure is $13.62 billion in affiliate investment during 2024, reported by PMA in 2025. Full-year 2026 results will only be measurable after the year ends.

Is affiliate marketing still growing?

Yes in the latest PMA US market comparison: spend increased 49.8% between 2021 and 2024, representing a 14.42% CAGR. Growth will vary by country, industry and program.

What percentage of ecommerce sales comes from affiliates?

PMA estimates 9.4% of total US ecommerce sales in 2024. It estimates a higher 15%–20% contribution among companies actively using affiliate marketing. These figures should not be treated as universal global benchmarks.

What is a good affiliate ROAS?

There is no universal target. PMA reports $11 in sales per $1 invested for US retail and $19 for travel, but profit depends on margin, cancellations, refunds, fees and incrementality. A sustainable target must use the company’s own economics.

Are affiliate conversion rates falling?

In impact.com’s North American retail sample, conversion rates fell 6% in 2025 while clicks rose 2%. This is a retail-platform benchmark, not evidence that every affiliate program or vertical declined.

Are influencers becoming more important in affiliate marketing?

In the same impact.com retail sample, influencer transaction volume grew 65% and conversion rate improved 8% year over year. Programs should still validate whether creators generate incremental value and choose compensation that reflects both content and performance.

Why do affiliate marketing statistics often conflict?

Reports may measure spend, commission, platform revenue, ecommerce sales or estimated market value. They also cover different countries, verticals and time periods. Always check the original source, date, sample, currency and metric definition.

Should forecasts be included in an affiliate statistics article?

They can be included if they are clearly labelled as forecasts and the methodology is available. A forecast should never be presented as current market size or an observed result.

How often should this article be updated?

Review it whenever PMA, IAB, major affiliate platforms or other credible research organizations publish new full-year data. At minimum, verify every statistic and external link annually.

How can a business apply these statistics?

Use the figures as external context, not as automatic targets. Benchmark the program against its own approved revenue, margin, customer quality, attribution coverage, partner mix and year-over-year performance.

Conclusion

The most defensible affiliate marketing evidence available in 2026 points to three broad conclusions. First, the US channel has grown substantially and now influences a meaningful share of ecommerce sales. Second, investment is diversifying beyond traditional retail into finance, travel, telecommunications and other models. Third, the retail customer journey is becoming more research-heavy: clicks can rise even when immediate conversion falls, while creators and technology partners take a larger role in moving shoppers toward purchase.

The correct response is not to chase a generic global market forecast or copy a competitor’s commission rate. Build reliable tracking, connect commissions with validated business outcomes, diversify partner types and evaluate value across the customer journey.

Tracknow affiliate software helps brands and networks manage affiliates, campaigns, attribution, commission rules, reporting and payout workflows across different industries and partner models.