Founders hear "$3,500 for an MVP" and think that is the total cost. It is not. There are costs before the build, costs during the build, and costs after launch that nobody mentions until you are already paying them. Here is the real breakdown.
Before the Build
Validation: $0 to $500. Landing page tests, user interviews, competitive research. This costs time, not money. But skipping it is the most expensive mistake a founder can make. Building the wrong product costs three to five times more than building the right one.
Design: $0 to $2,000. Some developers include basic design in their MVP price. Others charge separately. If you have a designer on your team, this is free. If not, budget for it.
During the Build
Development: $3,500 to $10,000 for a fixed-scope MVP. This covers authentication, payments, core features, and deployment. The range depends on complexity and who you hire.
Tools and services: $45 to $100 per month. Database, hosting, analytics, error tracking. These are your ongoing infrastructure costs. They scale with usage, not with features.
After Launch
Marketing: $0 to $2,000 per month. Content, ads, community participation. This is where most founders underinvest. A great product with no marketing is a hobby, not a business.
Maintenance: $0 to $500 per month. Bug fixes, feature requests, infrastructure updates. If your MVP was built well, this is low. If it was built fast with shortcuts, this is high.
The Hidden Costs Nobody Mentions
Your time: Founders spend 10 to 20 hours per week on a product launch. That is time you are not spending on sales, fundraising, or other projects. Factor it in.
Opportunity cost: Every month spent building is a month not spent earning. If your freelance rate is $100 per hour and you spend three months building instead of earning, that is $12,000 in opportunity cost on top of the development cost.
The Real Number
For a solo founder building a B2B SaaS MVP with a developer, the realistic total cost for the first three months is $5,000 to $15,000. That includes development, tools, basic marketing, and your time. Plan for that range, not just the development fee.
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