Build Profitable B2B SaaS From Scratch

Find Painful Business Problem

Target B2B. Businesses pay money to save time or make money. B2C churn high, willingness to pay low.

Look for:

• Spreadsheets run by non-technical teams

• Clunky legacy enterprise software

• Manual data entry across multiple tabs

• Industry-specific compliance or workflow bottlenecks

Validate Before Code

Write zero code first. Confirm pain with cash.

• Interview ten target users. Ask how they solve problem now and cost of current workaround.

• Pitch solution with mockups or slide deck.

• Ask for pre-orders or paid pilot. If prospect refuses to pay early, prospect will not pay later.

Build Minimal Product

Use boring, familiar stack. Monolith over microservices. SQLite or Postgres with standard server framework. Skip Kubernetes.

Rules for build:

• One core feature that solves one core problem.

• Integrate Stripe or LemonSqueezy for billing immediately.

• Cut all vanity features: dark mode, social logins, complex team permissions.

• Launch when embarrassed by product.

Pricing and Packaging

Charge day one.

• Use flat monthly subscription or usage tiers.

• Avoid free tiers. Free tiers bring high support cost, zero revenue.

• Use 14-day free trial with credit card required, or paid trial.

• Price on value delivered, not cost of server. Minimum 29 to 99 USD per month for B2B.

Distribution and Acquisition

Product does not sell itself. Code is 20 percent; distribution is 80 percent.

Channels for early growth:

• Cold outreach: Personalized email or LinkedIn messages to exact job titles.

• Communities: Answer questions where target users gather (Reddit, niche forums, Discord).

• Programmatic or niche SEO: Target high-intent, low-volume keywords ("software for [niche]").

• Integrations: Build plugins for existing ecosystems (Shopify, WordPress, Zapier marketplaces).

Retention and Unit Economics

Churn kills compound growth. Fix leak before pouring more water.

Key metrics:

• Customer Acquisition Cost (CAC)

• Lifetime Value (LTV): Target LTV greater than 3x CAC.

• Monthly Churn: Keep under 5 percent for SMB, under 1 percent for Enterprise.

• Net Revenue Retention (NRR): Upsell existing users with usage tiers or seat expansion.