Why most PQC cost estimates are wrong
Many organizations underestimate cost because they price algorithm replacement, not program execution. Real migration cost includes discovery, dependency mapping, testing, governance, tooling adaptation, vendor coordination, and ongoing reassessment.
A useful estimate models waves of work by business criticality and technical complexity. That lets leadership compare tradeoffs between speed, risk reduction, and operational disruption.
Reference cost table for enterprise planning
The table below provides directional planning ranges for a mid-to-large enterprise. Exact values depend on current cryptographic hygiene, architecture sprawl, and third-party constraints.
| Workstream | Typical Timeline | Indicative Cost Range | Primary Cost Drivers |
|---|---|---|---|
| Baseline readiness assessment | 5 weeks | $35k-$75k | Scope breadth, data quality, and depth of dependency discovery |
| Pilot migration wave | 8-16 weeks | $150k-$450k | Application refactoring, interoperability testing, and PKI updates |
| Enterprise-scale rollout | 6-18 months | $1M-$5M+ | Legacy replacement, vendor coordination, and change management volume |
| Ongoing governance and reassessment | Quarterly | $100k-$500k annually | Continuous discovery, policy updates, and remediation tracking |
Why start with a 5-week Bajpai Labs assessment
A focused 5-week assessment is usually the highest-leverage first investment because it prevents overfunding low-risk systems and underfunding critical trust dependencies.
Bajpai Labs Quantum Bridge delivers a prioritized migration backlog, ownership model, and budget scenarios that finance and security can jointly defend.
Budgeting recommendations for leadership teams
Fund post-quantum migration as a multi-year modernization program, not a one-time security spend. Tie budget release to measurable milestones such as exposure reduction in critical systems and migration completion in high-risk trust paths.
Organizations that combine staged funding with quarterly reassessment adapt faster to standards evolution and avoid expensive rework.
- Use risk-tiered migration waves to control spend
- Pair technical milestones with business impact metrics
- Include vendor remediation and contract updates in planning
- Reserve budget for validation, rollback, and performance hardening
Next step
Quantum Exposure Assessment
Fixed-fee engagement in five weeks. Cryptographic estate discovery, migration cost modeling, and board-ready deliverables before the mandate arrives.
Get your PQC cost baseline