Quick Answer: E&O insurance for software developers costs $75–$500+/month and covers code errors, project failures, IP infringement, and client financial losses. Every dev shop and freelance developer needs it. Get your developer E&O quote →
As a software developer, your code runs businesses. When something goes wrong — a bug causes downtime, a missed deadline costs revenue, or your software infringes on someone's IP — you could face a lawsuit. E&O insurance (professional liability) pays for your legal defense and any settlements or judgments.
Common E&O Claims Against Software Developers
| Claim Type | Example Scenario | Typical Cost Without Insurance |
|---|---|---|
| Code errors/bugs | Bug in payment processing loses $50K in transactions | $50K–$500K |
| Project failure | App doesn't meet specs, client demands refund + damages | $25K–$200K |
| Missed deadlines | Late delivery causes client to miss product launch | $50K–$1M |
| IP infringement | Code uses open-source library with incompatible license | $100K–$2M |
| Data loss | Migration script deletes production database | $25K–$500K |
| Security vulnerability | Your code has a vulnerability that gets exploited | $100K–$5M |
Developer E&O Insurance Costs
| Developer Type | Annual Revenue | Monthly Cost | Recommended Limit |
|---|---|---|---|
| Freelance developer | Under $100K | $75–$100 | $500K–$1M |
| Small dev shop (2–5 devs) | $100K–$500K | $125–$225 | $1M–$2M |
| Dev agency (5–20 devs) | $500K–$2M | $200–$400 | $2M–$5M |
| Software company (20+ devs) | $2M–$10M | $350–$750 | $3M–$5M |
SaaS Liability: Special Considerations
If you build and sell SaaS products, your E&O exposure is different from project-based development:
- Service availability: Downtime can trigger SLA-based claims from hundreds of customers simultaneously
- Data handling: You're responsible for customer data security
- Feature promises: Marketing claims about capabilities can create liability
- Integration failures: Your API breaks a customer's workflow
- Recommendation: SaaS companies should bundle E&O with cyber insurance and carry $2M+ limits
E&O + Cyber Bundle for Developers
Most tech E&O policies can be bundled with cyber insurance for comprehensive protection:
| Coverage | E&O Only | Tech E&O + Cyber Bundle |
|---|---|---|
| Professional mistakes | ✅ | ✅ |
| Code errors causing client loss | ✅ | ✅ |
| Your data breach | ❌ | ✅ |
| Ransomware attack on you | ❌ | ✅ |
| Client data breach via your code | ⚠️ Partial | ✅ |
| Breach notification costs | ❌ | ✅ |
Best E&O Carriers for Software Developers
| Carrier | Best For | Starting Price |
|---|---|---|
| Hiscox | Freelancers, small dev shops | $75/mo |
| Beazley | Tech E&O + cyber bundle | $125/mo |
| Hartford | Bundling with GL/BOP | $85/mo |
| CNA | Mid-size agencies, higher limits | $150/mo |
Open Source & IP Infringement Risk
Software developers face unique IP risks. Using open-source libraries with GPL, AGPL, or other copyleft licenses in proprietary code can trigger infringement claims. E&O policies with IP coverage protect against:
- Open-source license violation claims
- Patent troll lawsuits
- Copyright infringement allegations
- Trade secret misappropriation