Is a 40% ROI good?

In most investment contexts 40% ROI is solid, but for design ROI in SaaS it's on the low end of what a well-scoped project should return. If your design investment is only delivering 40%, the problem is almost always attribution scope, not design quality. Well-measured onboarding or conversion redesigns regularly produce 200% to 700% returns when churn reduction and support deflection are counted alongside direct revenue lift.

Here's what that looks like with real numbers. A redesigned trial flow moving conversion from 18% to 24% on 200 monthly trials at a €500 average contract value generates €72,000 in additional ARR in year one. If the design engagement cost €20,000, that's a 260% ROI. Teams that land at 40% are almost always counting only the most direct revenue vector, ignoring churn reduction, support ticket deflection, and sales cycle compression that the same design change produces further down the funnel.

For a Series-B SaaS we worked with across a 14-week engagement, the design investment ran to €38,000 covering product onboarding, dashboard information architecture, and a pricing page rebuild. Twelve months later, the client attributed €310,000 in ARR impact across three areas: an 8-point trial-to-paid conversion improvement, a 1.4-point monthly churn reduction, and a 19% drop in inbound support queries that freed two customer success team members for outbound work. Full-attribution ROI: 716%. Narrow-attribution ROI, counting only direct conversion lift: 120%. Neither number is wrong. They measure different radii around the same intervention.

When 40% is actually acceptable

Brand and positioning work rarely shows measurable financial returns inside 12 months. A visual identity overhaul pre-Series A moves investor perception, hiring quality, and enterprise sales dynamics, but attributing hard ARR numbers within a short window is unreliable. In those cases, 40% is a reasonable floor if you're measuring 12-month ARR impact, and the real return compounds over 18 to 36 months through shorter sales cycles and higher average contract values. That distinction matters when you're making the case for design budget internally, because you need to know which type of work you're actually funding.

On a Montblanc e-commerce workstream, measurement planning was built into the brief before any design direction was agreed. That discipline is what separates a 40% return from a 400% one. Execution without a measurement framework just produces output, not outcomes.

If you're getting 40% design ROI and think it should be higher, the issue is almost certainly one of three things: the design touched the wrong part of the funnel, the changes weren't significant enough to shift behaviour, or the measurement window is too short. Figuring out which one means looking at activation data and cohort retention, not the design files themselves. I'd start with cohort retention. That's where most attribution gaps hide.

For context on how design spend is structured to maximise return across SaaS stages, the UI/UX design agency pricing page gives realistic budget anchors. To work through where your current investment is underperforming, book a 20-min intro with Julien. For the full guide, read our design roi for saas overview.