How to Launch a SaaS MVP in 90 Days

Validate Before You Write a Single Line of Code

The most expensive mistake in SaaS development is building something nobody wants. Before you open your code editor, you need evidence that real people will pay for what you are planning to build. Not interest. Not encouragement from friends. Actual willingness to pay.

The fastest validation method is a landing page with a waitlist or pre-order option. Describe the problem your product solves, explain the solution in plain language, and include a pricing section with a call to action. Drive targeted traffic to the page through paid ads in your niche, relevant community posts, and direct outreach to people who match your ideal customer profile. If you cannot get fifty people to sign up for a waitlist or five people to put down a deposit in two weeks, you either have a positioning problem or a product problem. Either way, find out before you commit three months of development time.

The validation phase should also include five to ten customer discovery interviews. Not surveys. Conversations. Ask potential users how they currently solve the problem you are targeting, what they spend on existing solutions, and what would make them switch. These conversations will reshape your feature priorities and save you from building capabilities nobody asked for.

Pick the Right Stack: Next.js, Supabase, and Vercel

Technology selection for an MVP should optimize for three things: development speed, deployment simplicity, and the ability to scale when needed. After building multiple SaaS products, our standard stack is Next.js for the frontend and API layer, Supabase for the database and authentication, and Vercel for deployment. This combination eliminates the most common time sinks in early-stage development.

Next.js gives you server-side rendering, API routes, and a React-based component system in a single framework. You do not need to build and deploy a separate backend. Supabase provides a Postgres database with built-in authentication, real-time subscriptions, storage, and row-level security out of the box. The administrative overhead of managing user accounts, permissions, and database infrastructure drops to near zero. Vercel handles deployment with zero-configuration CI/CD, preview deployments for every pull request, and automatic scaling that handles everything from your first user to your ten-thousandth without touching infrastructure.

This stack is not the only viable choice, but it is the fastest path we have found from empty repository to production-grade application. When we built CapturePilot, our federal contract intelligence platform, we went from initial commit to live beta users in under ninety days using this exact stack. The technology was never the bottleneck. Understanding the market and building the right features was.

Build the Core Loop First

Every SaaS product has a core loop: the single workflow that delivers the primary value proposition. For a project management tool, it is creating and completing tasks. For an email marketing platform, it is composing and sending campaigns. For CapturePilot, it is entering your company URL and receiving matched federal contracts with readiness scores.

Your first thirty days of development should be spent building that core loop and nothing else. Not the settings page. Not the admin dashboard. Not the billing integration. Not the onboarding wizard. The core loop. If a user can complete the core loop and experience the value of your product, you have an MVP. Everything else is enhancement.

This discipline is harder than it sounds. Every founder has a list of twenty features they believe are essential for launch. They are not. Ship with the core loop, authentication, and the minimum interface needed to navigate between them. Your early users will tell you what to build next. Their feedback is more valuable than your assumptions.

Stripe Integration: Revenue From Day One

If you are building a SaaS product, integrate Stripe before you launch. Not after. Not when you have more users. Before you show the product to your first beta tester. There are two reasons for this. First, the act of charging money immediately separates interested users from committed users. Second, payment integration always takes longer than you expect, and discovering edge cases in your billing logic is much less painful with ten users than with a thousand.

Stripe Checkout and the Stripe Customer Portal handle the majority of subscription management needs for an MVP. You do not need to build custom billing pages, invoice management, or payment method collection interfaces. Stripe provides hosted versions of all of these that are fully functional and PCI compliant. Redirect your users to Stripe Checkout for subscription signup, use webhooks to update their account status in your database, and link to the Customer Portal for subscription management. This integration takes a competent developer one to two days, not weeks.

Start with a simple pricing structure. One or two tiers, monthly billing, no annual discounts, no enterprise custom pricing. You can add complexity later. For now, the goal is to validate that people will pay and to start generating revenue that informs your unit economics.

Launch to 10 Users Before 10,000

The launch phase is where most founders lose discipline. They want a Product Hunt launch, press coverage, and viral growth on day one. Ignore all of that. Your goal for the first launch is to get ten paying users. Not free users. Not trial signups. Ten people who have entered a credit card number and are using your product to solve a real problem.

These first ten users are your most valuable asset. They will find bugs your testing missed, request features you did not anticipate, and provide testimonials you can use for future marketing. More importantly, they will demonstrate whether your core loop actually delivers enough value to justify the price you are charging. If you cannot retain ten users, you have a product problem that no amount of marketing will fix.

Find these first users through direct outreach. Email people from your validation waitlist. Post in communities where your target audience congregates. Reach out individually to people who match your ideal customer profile and offer to onboard them personally. This does not scale, and it is not supposed to. The goal is learning and validation, not growth. Growth comes after you have confirmed that your product delivers value and that users stick around.

Key Takeaways

• Validate demand with a landing page and customer interviews before writing code. Fifty waitlist signups or five deposits in two weeks is your minimum bar.
• Next.js + Supabase + Vercel is the fastest path from empty repo to production. It eliminates infrastructure overhead and lets you focus on product.
• Build the core loop first and ship it before touching secondary features. Your early users will tell you what to build next.
• Integrate Stripe before launch, not after. Revenue from day one validates your pricing and separates interested users from committed ones.
• Launch to 10 paying users before pursuing scale. Learn, iterate, and confirm retention before investing in growth.