How to build a SaaS in 2026
The 90-day path from idea to first paying customer, with the AI-era shortcuts.
50% on kickoff, 50% on delivery · 30 days of free revisions · you own the code
Recent work
See all →Why we wrote this. We ship work like this ourselves — not as a reseller or a marketplace. The timelines, deliverables, and price bands below come from real engagements we've run end-to-end at Smartly Built Ventures Limited (trading as Vibed Ventures).
Who this is for
- First-time founders pricing their first SaaS build
- Operators spinning a SaaS out of a service business
- Engineers tired of greenfield-decision paralysis
What you get
- The decision tree: solo-build, vibe-coded, agency, or hire
- The AI-era stack that lets one person ship in a month
- A realistic 90-day plan (with what to cut on day 60)
- What to spend on (positioning, design), what to skip (premature scale)
- How to know you've hit v1 — and when to stop adding features
Dig deeper
Frequently asked
Can one person really ship a SaaS in 90 days?
Yes, if scope is honest. The trap is conflating 'SaaS' with 'every feature your competitors have'. v1 is one core loop someone pays for.
What stack should I use?
React + TanStack Start + Postgres + Stripe is hard to beat in 2026. Boring, hireable, scalable to millions.
What happens next
- Step 1Tell us the problem60 seconds in the /solve box. You don't need a brief.
- Step 2Get a tailored reportROI, build plan and a rough price band — emailed to you.
- Step 3Book a 25-min callWe talk it through honestly. If it's not for us, we'll say so.
Related in guides
- How much does it cost to build an app in 2026?Real numbers from real builds. No 'it depends' filler.
- The 2-week MVP checklistEverything you need decided before kickoff so the build actually fits in 14 days.
- What is AI SEO — and does it actually work?What 'AI SEO' actually means, what it can't do, and what we've seen across real client builds.
- How to hire a vibe-coder without getting burnedThe questions to ask, the red flags to spot, and the contract clauses that matter.



