Best SaaS Affiliate Programs 2026 — Recurring Commissions

SaaS affiliate programs are the gold standard for passive income because most pay recurring monthly commissions: typically 20–40% of a subscriber's monthly fee for as long as they stay subscribed. A single referral to a $100/month tool at 30% earns $30/month indefinitely, compounding into significant passive revenue over time. The category includes productivity tools, email marketing platforms, CRM software, AI writing assistants, and B2B software, all with high user retention because switching costs keep customers locked in. Most SaaS programs run on PartnerStack or Impact, approve quickly, and pay reliably on a monthly schedule.

Best for: Bloggers, YouTubers, and newsletter creators whose audiences use business software.