Build vs Buy eKYC
Definition
The strategic decision of whether to build eKYC capabilities in-house or purchase from a vendor — weighing cost, time-to-market, accuracy, control, and ongoing maintenance.
Decision Framework
| Factor |
Build In-House |
Buy from Vendor |
| Time to market |
6-18 months |
2-8 weeks |
| Upfront cost |
$500K-$5M+ (team + infra) |
$0-50K setup |
| Ongoing cost |
$200K-$1M/year (team + compute) |
$0.50-5 per verification |
| Accuracy |
Depends on team expertise |
Proven, benchmarked |
| Document coverage |
Build incrementally |
2,500-14,000+ types available |
| Control |
Full |
Limited to vendor capabilities |
| Regulatory updates |
Your responsibility |
Vendor handles |
| Differentiation |
Potential competitive moat |
Same as competitors using same vendor |
When to Build
| Signal |
Why Build |
| eKYC is core to your product (you ARE an eKYC vendor) |
It's your competitive advantage |
| >10M verifications/month |
Economies of scale favor in-house |
| Unique requirements not met by vendors |
Specialized documents, workflows |
| Data sovereignty |
Must not share data with third parties |
| Deep ML team available |
Can achieve and maintain high accuracy |
When to Buy
| Signal |
Why Buy |
| eKYC is table stakes (bank, fintech) not core differentiator |
Focus on your actual product |
| <1M verifications/month |
Vendor economics are better |
| Need fast time to market |
Weeks vs months |
| Limited ML expertise |
Can't match vendor accuracy |
| Multi-country from day one |
Need 100+ countries immediately |
Key Takeaways
Summary
- Most companies should buy — eKYC is a means to an end, not the core product
- Build only if eKYC is your core product OR you have massive scale + deep ML team
- Hybrid approach: buy vendor SDK for document + liveness, build custom decision engine + orchestration
- Total cost of ownership (build) is often 3-5x higher than expected due to ongoing maintenance
Related Articles