CalcFlow

I spent last weekend building CalcFlow - a portfolio of free financial calculators designed to generate passive income through SEO.

## The Model

Free tools → SEO traffic → AdSense + Affiliates = Passive income

Total investment: $2.98 (domain)

Time investment: over couple weekends

## What I Built

10 calculators targeting different financial pain points:

1. Solar ROI Calculator - 1,900 searches/month

2. 1031 Exchange Tax Calculator - 5,000 searches/month

3. Commercial Real Estate Calculator - 23,000 searches/month ⭐

4. Capital Gains Tax Calculator - 12,000 searches/month

5. Mortgage Refinance Calculator - 8,500 searches/month

6. IRMAA Calculator - 3,400 searches/month (blue ocean!)

7. Home Affordability Calculator - 6,000 searches/month

8. Rental Property ROI Calculator - 4,200 searches/month

9. Car Loan Calculator - 8,000 searches/month

10. 401(k) Calculator - 5,000 searches/month

Total: 77,000 monthly searches targeted

## Tech Stack

- React + TypeScript

- Tailwind CSS

- Supabase (state tax rates)

- Free hosting on Readdy

- Domain via Namecheap ($2.98/year)

No authentication, no backend (except tax rate lookups), no payment processing. Just pure calculators.

## First 28 Days Results (Pre-SEO)

- 112 active users (from ProductHunt only)

- 829 events

- 7.4 events per user - people actually using them!

- Top performer: Solar ROI (73% of traffic)

- Best engagement: Capital Gains calculator (12.5% bounce rate)

## Monetization Strategy

Phase 1 (Month 1-3): Google AdSense only

→ Target: $50-200/month

Phase 2 (Month 3-6): Add contextual affiliates

→ TurboTax on tax calculators, mortgage lenders on refinance tool

→ Target: $500-1,500/month

Phase 3 (Month 6-12): Lead generation

→ Sell qualified leads to financial advisors, solar installers

→ Target: $2,000-5,000/month

Phase 4 (Month 12+): Direct partnerships

→ Sponsorships, white-label licensing

→ Target: $5,000-15,000/month

## What I Learned

✅ What Worked:

- Portfolio approach - 10 calculators = 10 independent traffic sources

- High-intent keywords - "1031 exchange calculator" = investor actively making decisions

- No login wall - Removes friction, better for SEO

- Mobile-first design - 60%+ of searches are mobile

- Deep SEO content - 1,500+ words per calculator explaining concepts

❌ What I'd Do Differently:

- Should've verified Search Console Day 1 (not Day 28)

- Built calculator #11-15 instead of perfecting #1-10

- More user testing before launch

- Started affiliate research earlier

## The Blue Ocean Discovery

IRMAA Calculator - Medicare Part B/D surcharge calculator. Gets 3,400 monthly searches but almost no quality calculators exist online. It's a small niche, but completely uncontested.

Sometimes the best opportunities aren't the biggest ones.

## Current Status

- ✅ 10 calculators live

- ✅ Google Search Console submitted

- ✅ Google AdSense installed (pending approval)

- 🔄 Waiting for SEO to kick in (Month 2-3)

- 📊 4 users/day organic (pre-optimization)

## The Strategy Moving Forward

Month 1: Let SEO marinate, monitor performance

Month 2: Identify winning calculators, build 2-3 more in same categories

Month 3: Add affiliate programs to top performers

Month 6: Scale winning categories, explore lead gen

## Why This Could Actually Work

1. Real search volume - Not theoretical, actual monthly searches

2. High-intent traffic - Someone searching for a 1031 calculator is investing NOW

3. Compound growth - Each calculator ranks independently

4. Low maintenance - No customer support, minimal hosting costs

5. Multiple revenue streams - Not dependent on one monetization channel

## The Anti-SaaS Thesis

Instead of building one elaborate platform with user accounts, dashboards, and subscriptions, I built 10 simple tools that:

- Rank for different keywords

- Monetize independently

- Require no ongoing support

- Scale without infrastructure costs

Lower effort per user, but way more users.

## Questions I'm Happy to Answer

- Technical implementation

- SEO content strategy

- Specific calculator logic

- Monetization approach

- Time breakdown per calculator

Live site: https://calcflow.ink

Will post monthly updates with traffic and revenue numbers. Follow along if you want to see if this actually works!