Legacy applications cost B2B SaaS companies 15-30% of engineering budgets. Learn the true cost of inaction and ROI of professional rebuilds.
The Hidden Costs
Technical Debt: 15-25% of monthly engineering budget. For $50K monthly budget, that's $7,500-$12,500 per month or $90K-$150K annually.
Cloud Waste: 10-20% of infrastructure costs. Inefficient infrastructure, unused resources, poor optimization.
Security Risks: Potential breaches costing millions. Outdated security, unpatched vulnerabilities, compliance issues.
Developer Productivity: 30-40% slower feature development. Technical debt slows development, increases bugs, causes frustration.
Opportunity Cost: Can't implement new features, can't scale, can't compete, losing market share.
Total Cost of Inaction
Annual Cost: For a company with $50K monthly engineering budget, legacy apps cost $180K-$360K annually in technical debt, cloud waste, and opportunity cost.
5-Year Cost: $900K-$1.8M over 5 years. This exceeds the cost of professional rebuilds ($75K-$125K).
ROI of Action
Rebuild Cost: $85K (Growth tier) for professional rebuild.
New Monthly Cost: $15K (70% reduction from $50K).
Monthly Savings: $35K per month.
Payback Period: 2.1 months.
5-Year ROI: 1,733% (($35K × 60) - $85K) ÷ $85K × 100%.
5-Year Savings: $2.1M in savings vs. $900K-$1.8M in costs of inaction.
When to Act
Act Now If: Technical debt >30% of monthly costs, security risks exist, scalability is blocked, or you're losing market share.
The Cost of Waiting: Every month of inaction costs $15K-$30K. The longer you wait, the more it costs.
Get Started: Calculate your cost of inaction with a free audit at WebEvo.ai, then get a rebuild blueprint at Appspark.ai.