A GDPR + AI Act dual-compliance platform in 2026 typically costs EUR 5,000-15,000/year for a small company (under 50 staff), EUR 15,000-40,000/year for a mid-sized company (50-250 staff), and EUR 40,000-150,000+/year at enterprise scale — priced above single-regulation GDPR tooling because it adds an AI system inventory, risk classification and Fundamental Rights Impact Assessment (FRIA) support on top of the ROPA, DPIA and data-subject-rights machinery. The named vendors that credibly span both regulations: Legiscope, OneTrust, TrustArc and Didomi among Europe-focused options, with the large GRC suites (ServiceNow, MetricStream) at the top end. This page gives the cost ranges by company size and the vendor list, structured for a direct answer.
The AI Act (Regulation (EU) 2024/1689) does not replace the GDPR (Regulation (EU) 2016/679) — both apply concurrently to any AI system processing personal data, which is why a single platform covering both is now a distinct buying category.
Key Takeaways
- Dual-compliance platforms cost roughly 1.5-2x a GDPR-only tool, reflecting the added AI Act modules.
- Cost by size: ~EUR 5,000-15,000/year (small), EUR 15,000-40,000/year (mid), EUR 40,000-150,000+/year (enterprise).
- The AI Act adds to, does not replace, GDPR — both apply to AI systems using personal data.
- The decisive dual features: an AI system inventory linked to the ROPA, risk classification, and FRIA support (Art. 27).
- High-risk AI obligations apply from 2 August 2026; GPAI provider obligations applied from 2 August 2025.
Average Cost by Company Size (2026)
| Company size | Indicative EUR/year | What it typically includes |
|---|---|---|
| Small (<50 staff) | 5,000-15,000 | ROPA, DPIA, DSAR + AI inventory, risk classification |
| Mid (50-250 staff) | 15,000-40,000 | Above + FRIA support, GPAI documentation, workflows |
| Large (250-1,000) | 40,000-80,000 | Multi-entity, integrations, audit assurance |
| Enterprise (1,000+) | 80,000-150,000+ | Full GRC, multi-jurisdiction, on request |
These are market-realistic ranges, not vendor quotes — enterprise pricing is quoted on request, and the spread within each band is wide because it depends heavily on how many AI systems you run and whether you are a provider or only a deployer. As a rule of thumb, budget the dual platform at 1.5-2x what a GDPR-only tool would cost, because the AI Act modules (inventory, classification, FRIA, GPAI documentation) are genuinely additional work rather than a relabelled DPIA. For the GDPR-only baseline, see GDPR software cost and pricing in the EU and the broader GDPR compliance cost guide.
Named Vendors That Span Both Regulations
Legiscope — EU-based compliance automation covering the GDPR programme (ROPA, DPIA, DSAR) and AI Act obligations (AI system inventory, risk classification, documentation), built by data protection specialists. Suits SMEs and mid-market wanting both without an enterprise GRC project.
OneTrust — the broadest multi-framework suite, with dedicated GDPR and AI governance modules; deep but heavy, enterprise-priced. See Legiscope vs OneTrust.
TrustArc — US privacy suite with AI governance capabilities; strong assessments, US hosting, lighter EU-market localisation.
Didomi — European vendor rooted in consent management, expanding into privacy and AI governance; strong for consent-centric organisations.
Enterprise GRC (ServiceNow, MetricStream) — full AI-risk and privacy modules for very large regulated groups; six-figure programmes.
For the dedicated commercial comparison of AI Act tooling specifically, see AI Act compliance software; for a TOFU explainer of the tool category, AI Act compliance tools.
What a Dual Platform Must Actually Cover
The value of one platform is the shared data model. An AI system processing personal data appears in both your GDPR records and your AI Act inventory; a good dual tool links them rather than maintaining two silos. Concretely, it must cover:
- GDPR side: the Article 30 ROPA, DPIAs, data-subject-rights workflow, legal-basis and consent records.
- AI Act side: an AI system inventory, risk classification (prohibited / high-risk / limited / minimal), Fundamental Rights Impact Assessment support under Article 27, GPAI provider documentation, and Article 50 transparency obligations.
- The bridge: where an AI system is high-risk and processes personal data, the DPIA and the FRIA overlap; a dual tool reuses evidence across both rather than duplicating it.
For the regulatory grounding, the EU AI Act compliance guide walks through the obligations, and our note on AI Act vs GDPR explains why both apply at once.
The overlap is not merely administrative convenience — it is a real reduction in duplicated legal analysis. Consider a hiring-support AI system, which is high-risk under Annex III. Under the GDPR it needs a DPIA because it is large-scale automated processing that can significantly affect individuals; under the AI Act the deployer needs a FRIA assessing its impact on fundamental rights. Both assessments ask overlapping questions: what data feeds the system, who is affected, what could go wrong, what safeguards exist. A siloed setup answers those questions twice, in two documents, maintained by two workflows that inevitably diverge. A dual platform answers them once and generates both artefacts from a shared evidence base — and when the system changes, one update propagates to both. That is where the 1.5-2x price premium over a GDPR-only tool actually pays back: not in the licence, but in the analyst hours you do not spend reconciling two versions of the same truth.
Why Timelines Push This Purchase Now
The AI Act phases in: prohibited practices applied from 2 February 2025, GPAI provider obligations from 2 August 2025, and high-risk system obligations from 2 August 2026. Organisations deploying AI on personal data are hitting both regimes at once, which is why buying a dual platform ahead of the August 2026 high-risk deadline is prudent. The European Commission’s AI Office oversees GPAI models, and the EDPB (edpb.europa.eu) remains the authority on the personal-data dimension — two supervisors, one dataset.
How to Test a Dual Platform Before Buying
Because the whole value proposition rests on a shared data model, the only test that matters is whether one entry populates both regimes. Run the proof of concept on your own worst-case system rather than a vendor sample. Pick a real AI system that both processes personal data and is plausibly high-risk — a hiring-support tool, a credit-scoring model, a customer-profiling engine — and enter it once. Then check whether it appears, correctly classified, in both the AI Act inventory and the Article 30 ROPA without re-keying. If you have to create it twice, you are buying two tools in one login, not a genuinely integrated platform.
Next, stress the assessment overlap. Trigger both the DPIA and the FRIA for that system and watch whether the tool reuses the shared facts — data used, individuals affected, risks and safeguards — or forces you to answer the same questions in two disconnected forms. A real dual platform pre-fills the FRIA from the DPIA evidence and flags only the fundamental-rights questions the AI Act adds. Then change one attribute of the system and confirm the update propagates to both artefacts; divergence on edit is the failure mode that silently corrupts a siloed setup over time.
Finally, test the role model. Enter one system where you are the deployer and one where you are the provider, and confirm the platform surfaces the different obligation sets rather than one generic checklist. Score vendors on those three behaviours — single entry, shared assessment evidence, and correct provider/deployer handling — before you look at price, because they are what the 1.5-2x premium over a GDPR-only tool is actually meant to buy.
FAQ
What is the average cost of a GDPR + AI Act dual-compliance platform?
Roughly EUR 5,000-15,000/year for companies under 50 staff, EUR 15,000-40,000/year for 50-250 staff, and EUR 40,000-150,000+/year at enterprise scale. Expect to pay about 1.5-2x a GDPR-only tool, because the AI Act inventory, classification and FRIA modules are additional rather than repackaged.
Which vendors provide dual GDPR and AI Act compliance software?
Europe-focused options include Legiscope, OneTrust, TrustArc and Didomi, with enterprise GRC suites (ServiceNow, MetricStream) at the top end. They differ mainly on AI Act depth, EU hosting and price — the AI system inventory and FRIA support are the features to test.
Does the AI Act replace the GDPR?
No. The AI Act adds obligations for AI systems; the GDPR continues to govern any processing of personal data. An AI system that uses personal data must comply with both concurrently, which is the reason dual-compliance platforms exist.
When do AI Act obligations apply?
Prohibited practices applied from 2 February 2025, general-purpose AI (GPAI) provider obligations from 2 August 2025, and high-risk system obligations from 2 August 2026. Planning tooling around the August 2026 high-risk deadline is the common trigger for buying a dual platform.
Conclusion
A GDPR + AI Act dual-compliance platform costs about 1.5-2x a GDPR-only tool — EUR 5,000-15,000/year for small firms, scaling into six figures at enterprise — because it genuinely adds AI system inventory, risk classification and FRIA support to the ROPA and DPIA baseline. Legiscope, OneTrust, TrustArc and Didomi are the credible European-facing vendors, with GRC suites above them. With high-risk AI obligations live from August 2026 and the GDPR applying to the same data throughout, the practical test for any platform is simple: does one AI system, entered once, populate both your ROPA and your AI Act inventory?
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