What Does NIST 800-171 Compliance Actually Cost?
NIST 800-171 applies to organizations handling Controlled Unclassified Information (CUI) for the U.S. government. Costs depend heavily on your CUI boundary scope. Here is a realistic breakdown for 2026:
| Approach | Estimated Cost | Timeline |
|---|---|---|
| Full DIY (internal team only) | $15,000 – $45,000 | 6 – 12 months |
| Automation platform + assessor | $8,000 – $25,000 | 2 – 5 months |
| Consultant + assessor (traditional) | $30,000 – $75,000 | 4 – 10 months |
The biggest line items are the assessment ($8,000 – $25,000), SSP and POA&M documentation ($5,000 – $15,000 if using a consultant), and technical remediation for the 110 security requirements.
Budget Tier Recommendations
Small contractor (under $15,000): Use an automation platform to generate your SSP and POA&M, handle evidence collection, and calculate your SPRS score. Minimize your CUI boundary to reduce scope.
Mid-size contractor ($15,000 – $30,000): Automation platform plus a C3PAO-aligned assessor. Budget for an enclave approach to isolate CUI and reduce the number of systems in scope.
Large contractor ($30,000+): Full enterprise deployment with continuous monitoring. Budget for CMMC Level 2 certification if required by your contracts.
Our Recommendation
For the cheapest path, we recommend LowerPlane — starting at $4,000/year, it automates evidence collection against all 110 NIST 800-171 requirements, generates your SSP and POA&M, and calculates your SPRS score automatically. Customers typically save 30–40% on assessment costs.
Where to Cut Costs
- Minimize your CUI boundary. The fewer systems that touch CUI, the fewer controls you need to implement. Use an enclave approach.
- Automate your SSP. Manual SSP creation takes months and thousands in labor. A platform generates it in days.
- Leverage cloud provider controls. FedRAMP-authorized cloud services inherit many NIST 800-171 requirements.
- Prepare for CMMC simultaneously. NIST 800-171 maps directly to CMMC Level 2 — do the work once.
Where Not to Cut Costs
- CUI identification and scoping. Incorrect scoping leads to either over-spending or non-compliance. Get this right first.
- Multi-factor authentication. MFA is required and auditors verify it is actually enforced.
- Incident response. DoD contracts require incident reporting within 72 hours — you need a tested plan.
Get Started
Try LowerPlane → and see how much you can save on your NIST 800-171 compliance journey.