Building SaaS with AI: From Idea to Recurring Revenue

By Brent Dunn 11 min read

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2026 Update: Building software used to cost $50,000-500,000 and require a dev team. Now it costs $500-5,000 and one person with AI tools. Y Combinator reported their W24 batch decreased time to MVP by 60% compared to 2022.

That stat matters because it means you can compete.

Not eventually. Right now. With skills you can learn in weeks, not years.

Here’s how to actually do it.


Why I chose SaaS (and why you should consider it)

I’ve run content sites, lead gen, affiliate campaigns, and agencies.

SaaS is different.

When you build software that solves a real problem, people pay you every single month. That’s not a transaction. That’s a relationship that compounds.

Here’s the math: Recurring revenue means predictable cash flow. Margins run 70-90% because software costs almost nothing to replicate. You can serve 10 customers or 10,000 without proportionally increasing costs. And at exit, SaaS companies sell for 3-10x annual revenue. You’re building equity, not just income.

The catch?

SaaS used to be a rich person’s game. You needed money for developers, time for building, and patience for a long runway.

AI changed that equation entirely.

You can validate ideas faster, build MVPs in weeks instead of months, ship features that would have taken a team.

But AI doesn’t replace business fundamentals. It just removes the technical barrier that kept most people out.


The AI tools that actually work (and what I use)

There are dozens of “AI coding” tools out there. Most are hype. Here’s what’s worth your time:

If you can code (or want to learn)

Claude Code is my primary development tool.

It’s not autocomplete. It’s more like a junior developer who works in your terminal. It analyzes your codebase, plans implementations, creates and modifies files, runs tests, and commits code. You supervise the high-level direction.

According to real benchmarks, Claude Code uses 5.5x fewer tokens than Cursor for the same task and produces code that requires about 30% less rework.

Cursor is the other major player. It’s VS Code rebuilt with AI as a first-class citizen. Great for real-time coding assistance and understanding project-specific patterns. I covered this in my Claude Code Guide.

My approach: Use both. Claude Code for autonomous complex tasks and big refactors. Cursor for inline editing and quick iterations.

If you don’t code

You have real options now.

Lovable - Describe your app, get a polished UI connected to a real backend (usually Supabase). Best for visual, non-intimidating development. Around $25/month for the Pro plan.

Bolt.new - Browser-based AI development. Open a tab, describe what you want, get a live site. Free tier available, Pro around $20/month.

These aren’t toys anymore. You can build real products with them.

The skill gap has shifted. Prompting and product sense matter more than syntax now. The founders who do well know how to direct these tools strategically.


Finding an idea worth building

Most people skip this step. They build something they think is cool instead of something people will pay for.

That’s the fastest way to waste three months.

Pain is what opens wallets

Not mild inconvenience. Not “nice to have.” Real pain.

The best SaaS ideas come from:

Workflow inefficiencies - Manual processes, spreadsheet-based workflows, copy/paste between apps. If someone is doing repetitive work that software could handle, there’s an opportunity.

Underserved niches - Industries stuck with generic tools or outdated software. Real estate agents, fitness coaches, salons, contractors. They have money and hate their current tools.

Emerging needs - Problems created by AI adoption, remote work, regulatory changes. New problems mean no entrenched competitors.

Integration gaps - Data that needs to connect between popular tools. These are unglamorous but sticky products.

Think micro-SaaS, not Salesforce

You’re not building an enterprise platform. You’re building a focused tool that solves one specific problem for one specific audience.

According to industry research, the most profitable micro-SaaS categories in 2026 are:

  • AI-powered content tools
  • Niche CRMs (real estate, fitness, salons, contractors)
  • Workflow automation
  • Analytics dashboards
  • Subscription billing software

These work because they solve ongoing operational problems and naturally support monthly subscriptions.

My validation process (before I write any code)

Here’s the exact prompt I run for initial idea validation:

Help me validate this SaaS idea critically. Be honest, not encouraging.

Idea: [DESCRIBE YOUR IDEA]
Target customer: [WHO]
Problem it solves: [PAIN POINT]

Research and analyze:

1. PROBLEM EVIDENCE
- Where are people actively complaining about this problem?
- What do they currently use to solve it?
- Why aren't current solutions good enough?

2. MARKET SIZE
- How many potential customers exist?
- What do they currently spend on this problem?
- Is this a $1M market or a $100M market?

3. COMPETITION
- Who else solves this? (direct competitors)
- What alternatives exist? (indirect competitors)
- Why might we win?

4. TIMING
- Why is NOW the right time?
- What trends support this?
- What could kill this idea?

5. UNIT ECONOMICS
- What could we realistically charge?
- What would customer lifetime value be?
- Is this viable as a business, not just a project?

Give me your honest assessment. I need truth, not validation.

This prompt has killed three of my ideas this year. That’s the point. I’d rather lose an hour of research than three months of building.

The goal isn’t to find a “perfect” idea. It’s to find one worth testing.


Building your MVP (the right way)

MVP stands for Minimum Viable Product.

Most people misunderstand what “minimum” means.

An MVP is NOT:

  • A demo or mockup
  • A feature-complete product
  • Something you’re embarrassed by

An MVP IS:

  • The smallest version that delivers core value
  • Enough to get paying customers
  • A foundation you can iterate on

Cut features ruthlessly

Here’s where most founders fail.

They add features because they’re interesting, not because customers need them.

Your MVP should have 3-5 features maximum. Everything else is V2.

Ask yourself: If I could only ship ONE feature, what would make people pay?

Build that first.

The tech stack decision

For AI-assisted building, choose stacks that AI understands well:

LayerGood OptionsWhy
FrontendNext.js, React, VueLarge ecosystem, AI generates clean code
BackendNode.js, PythonAI excels at these languages
DatabaseSupabase, PostgreSQL, PlanetScaleReliable, scalable, good AI support
AuthClerk, Auth0, Supabase AuthDon’t build auth yourself. Ever.
PaymentsStripeIndustry standard. Don’t overthink this.
HostingVercel, Railway, Fly.ioEasy deployment, scales automatically

If you’re using Lovable or Bolt, you don’t need to make these decisions. The platform handles it.

But if you’re using Claude Code or Cursor, pick a stack and commit. Switching costs time you don’t have.

My AI development workflow

Here’s how I approach building:

1. PLANNING
   └── Describe the feature → AI generates spec → I refine

2. DESIGN
   └── Describe UI → AI suggests structure → I adjust

3. CODING
   └── Describe function → AI writes code → I review and test

4. DEBUGGING
   └── Share error → AI diagnoses → I verify the fix

5. DOCUMENTATION
   └── Share code → AI documents → I edit for accuracy

The pattern is always: AI proposes, you supervise, iterate until right.

Don’t blindly accept AI code. Review it. Test it. Understand what it’s doing.


Pricing (where most founders leave money on the table)

Most founders underprice because they’re scared people won’t pay.

That’s backwards.

Value-based pricing formula

This is the most effective approach for SaaS.

Here’s the math:

If your tool saves 10 hours/month
And your customer's time is worth $50/hour
The value created is $500/month
You can capture 10-20% of that value = $50-100/month

You’re not pricing based on your costs. You’re pricing based on what the solution is worth to your customer.

Skip the free tier (at least initially)

Should you have a free plan?

Probably not. Understand the economics: Freemium plans typically convert at 3-5%. That means 95-97% of your users never pay you anything.

This works for companies like Slack and Dropbox because they have massive scale and viral loops built in.

For a solo founder?

A free trial is usually better. 14 days, full access, credit card required upfront. Higher conversion, fewer freeloaders.

Three tiers that work

Most SaaS products need 3 tiers:

  1. Starter - Entry point. Solves the core problem. Priced for individuals or small teams.
  2. Professional - Most popular tier. More features, higher limits. Priced for growing businesses.
  3. Enterprise - Custom pricing. Advanced features, dedicated support. For larger companies.

Make your middle tier the obvious choice. That’s where most customers should land.

Double your prices

A 1% improvement in pricing can increase your bottom line by 12.5%.

Most founders should double their prices and see what happens. Seriously.

Customers who pay more are usually better customers. Less churn, fewer support tickets, more reasonable expectations.


Getting your first 10 customers

Building is half the battle. Finding customers is the other half.

The first 10 come from hustle, not funnels

Personal network - Who do you know that has this problem? Reach out directly. A warm intro converts better than any landing page.

Communities - Reddit, Discord, Slack groups where your customers hang out. Be helpful first, then mention your tool when it’s genuinely relevant.

Cold outreach - Direct messages to people who clearly have the problem you solve. Personalize every message. Generic pitches get ignored.

Product Hunt - Good for B2C and prosumer tools, but plan the launch carefully.

At this stage, you’re not scaling. You’re learning.

Talk to every customer. Understand why they bought. What they expected. What surprised them.

10-100 customers: repeatable channels

Content marketing - Builds your SEO foundation over time. I cover this in the AI Content Workflow guide.

Paid acquisition - Test channels with small budgets. Google Ads often works well for SaaS with clear intent keywords.

Referrals - Systematized word-of-mouth. Make it easy for happy customers to refer others.

Partnerships - Complementary tools that share your audience.

The content play for SaaS

Content marketing is particularly powerful for SaaS because people search for solutions to the problems your software solves.

If you rank for those searches, you get a constant stream of qualified leads.

This takes time. Six to twelve months to see real results from SEO. But it compounds. And once it’s working, acquisition costs approach zero.

Check out AI Keyword Optimization for how to find the right keywords to target.


The metrics that matter

Know your numbers or fly blind.

MetricWhat It MeasuresTarget
MRRMonthly recurring revenueGrowing
Churn% of customers who cancelUnder 5%/month
LTVTotal revenue from average customer3x+ your CAC
CACCost to acquire one customerUnder 1/3 of LTV
PaybackMonths to recover CACUnder 12 months

The ratio that matters most

LTV:CAC ratio.

If this is 3:1 or better, your business works. You’re spending $1 to make $3.

Below 3:1? Something’s broken. Either reduce acquisition costs or increase lifetime value.

Churn kills slowly

A 5% monthly churn rate means you lose half your customers every year.

At that rate, you’re on a treadmill. Constantly acquiring new customers just to stay in place.

Reduce churn before scaling acquisition. It’s cheaper and more effective.


Mistakes that kill SaaS products

I’ve seen these destroy more products than competition ever has.

Building mistakes:

  • Building without validation. The most expensive mistake. You spend months building something nobody wants.
  • Over-engineering the MVP. Perfect is the enemy of shipped. Launch ugly, iterate fast.
  • Not talking to customers. Your assumptions are wrong. Customer feedback is the correction.

Pricing mistakes:

  • Underpricing. You’re not doing customers a favor by charging less.
  • Complex pricing. If customers can’t understand your pricing in 10 seconds, simplify it.

Growth mistakes:

  • Trying all channels at once. Pick one or two, master them before adding more.
  • Scaling before product-market fit. Pouring gas on a broken car doesn’t make it run faster.
  • Ignoring existing customers. Expansion revenue from current customers is cheaper than new acquisition.

Your 12-week launch plan

Here’s the timeline I recommend for going from idea to paying customers.

Weeks 1-2: Validate

  • Define the problem and audience clearly
  • Conduct 10+ customer interviews (real conversations, not surveys)
  • Analyze 3-5 competitors deeply
  • Make the go/no-go decision

Weeks 3-4: Define

  • Write MVP spec (3-5 features max)
  • Design core screens and user flow
  • Choose your tech stack
  • Set up development environment

Weeks 5-8: Build

  • Build MVP core features
  • Set up authentication and payments
  • Create landing page
  • Internal testing and bug fixing

Weeks 9-10: Beta

  • Launch to 10-20 beta users
  • Gather feedback obsessively
  • Fix critical issues
  • Refine based on actual usage

Weeks 11-12: Launch

  • Finalize pricing
  • Prepare launch content
  • Public launch (Product Hunt, communities, direct outreach)
  • Monitor, respond, iterate

This timeline is aggressive but achievable with AI tools.

The key is ruthless prioritization. Every feature request gets the same question: Does this help us get paying customers this month?

If the answer is no, it’s V2.


Start here

SaaS is a marathon, not a sprint. The founders who win are the ones who keep showing up.

This week, do one thing: Run the validation prompt above on your best idea. See what comes back.

If it survives, move to week one of the launch plan.

Planning foundation:

Build your product:

Acquire customers:

Optimize:

AI makes building software accessible. The market still decides what survives.

Build something people need.

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