CheckFile vs Onfido: complete comparison 2026

CheckFile and Onfido (now part of Entrust since March 2023) address fundamentally different problems: Onfido is built around biometric identity verification — facial comparison, liveness detection, selfie-to-document matching — while CheckFile is designed for broad-spectrum document verification across identity, commercial, HR, legal, and financial document types. For UK firms subject to the Money Laundering Regulations 2017 and FCA oversight, where customer due diligence extends well beyond a single identity check, CheckFile provides the documentary coverage that biometric-first platforms do not offer natively.

This article is for informational purposes only and does not constitute legal, financial, or regulatory advice. Figures are drawn from public sources and internal measurements at the date of publication (April 2026). Performance and pricing may change. Consult a qualified professional for guidance specific to your situation.

Comparison table: CheckFile vs Onfido

Onfido (Entrust): biometric-first identity verification

Onfido, founded in London in 2012 and acquired by Entrust in March 2023, is a digital identity platform whose core proposition centres on biometrics. Its Atlas AI technology combines official identity document analysis with facial comparison and liveness detection to answer one question: is this person genuinely who they claim to be?

Onfido Studio, the vendor's no-code workflow builder, enables compliance and product teams to assemble verification flows without development effort — a genuine advantage for rapid deployment in regulated onboarding journeys. The platform holds ISO 27001 and SOC 2 Type II certifications and is registered with the FCA. Native iOS and Android mobile SDKs encapsulate the full capture journey — document, selfie, liveness video — in an embeddable component. With 3,400 document types across 195 countries, Onfido's geographic coverage for identity documents is among the deepest on the market.

The key limitation is scope. Onfido is optimised for identity KYC: it does not cover commercial documents (company registration certificates, articles of association), HR documents (payslips, employment contracts), or financial evidence (bank statements, proof of funds) natively. For UK firms whose due diligence obligations under MLR 2017 extend to verifying beneficial ownership, source of funds, and the purpose of business relationships, Onfido alone does not constitute a complete compliance solution.

CheckFile: broad-spectrum document verification engine

CheckFile is a document verification engine built for complete case file analysis rather than single-document identity checks. Our platform has processed more than 2.4 million documents, and our internal analysis shows that 72% of documents verified are commercial or HR documents, not identity documents — a figure that illustrates the gap between real compliance workloads and the scope covered by identity-first platforms.

Coverage spans 3,200+ document types: identity documents (passports, national ID cards, residence permits), commercial documents (company registration extracts, articles of association, purchase orders), HR documents (payslips, employment contracts, qualification certificates), financial documents (bank statements, proof of funds, tax returns), and legal documents (powers of attorney, court orders). CheckFile's 98.7% OCR accuracy is measured on a representative production corpus, including complex cases: low-resolution scans, documents photographed in natural light, non-standard formats (see our full document verification guide).

CheckFile does not offer biometric verification — no facial comparison, no liveness detection. This is a deliberate architectural choice: by focusing exclusively on document extraction and validation, the platform sustains a 4.2-second average processing time and a unit cost of approximately £0.10 per document.

Document and geographic coverage

Onfido covers 3,400 identity document types across 195 countries — the broadest geographic footprint in the market for official identity documents. This depth is a decisive advantage for organisations onboarding customers across dozens of countries simultaneously, particularly where non-Latin scripts and biometric passports are involved.

CheckFile covers 32 jurisdictions with greater document depth at each level: beyond identity documents, every jurisdiction includes the full range of commercial, HR, and regulatory documents required for complete compliance dossiers. For UK firms where the majority of compliance workloads involve UK-issued documents and EU counterparties, CheckFile's 32-jurisdiction coverage is both sufficient and more operationally relevant than global identity coverage that stops at the passport.

Under MLR 2017 Regulation 28, firms must verify the identity of beneficial owners and obtain information on the nature of the business relationship. This routinely requires evidence beyond identity documents: company registration certificates, proof of address, financial statements, source of funds documentation. The relevant question when evaluating these platforms is not "how many countries?" but "which documents, in which jurisdictions?"

Pricing: £0.10 per document vs opaque enterprise contracts

CheckFile operates on transparent, publicly available pricing: approximately £0.10 per document verified, with volume-based tiering. No setup fees, no separately charged fraud detection module, no minimum commitment required for pilot evaluations.

Onfido does not publish pricing. Market estimates place enterprise contracts at £1.60 to £3.20 per verification depending on activated modules, committed volume, and contract duration. For a business processing 10,000 documents per month, the annual difference is material: approximately £12,000 with CheckFile against £192,000 to £384,000 with Onfido. This simplified comparison does not reflect a feature-for-feature equivalence — Onfido includes biometrics within each verification — but it illustrates the cost order of magnitude when your primary need is documentary rather than biometric.

Across our mid-market client base, the cost per case file has been reduced by 67%, processing time by 83%, and onboarding speed has improved 4.5 times after switching to CheckFile (see also our CheckFile vs IDology comparison).

Regulatory compliance and data hosting

Data residency is a non-negotiable criterion for firms subject to FCA supervision, HMRC reporting obligations, or NCA Suspicious Activity Reports. CheckFile hosts all data in France, within the European Union, with no transfers outside the EU. This architecture is natively compliant with UK GDPR requirements under the Data Protection Act 2018 — encryption in transit and at rest, configurable automatic deletion, full exportable audit trail.

The AMLD6 Directive (2024/1640/EU) strengthens due diligence obligations on beneficial owners and expands the list of obliged entities. It requires complete traceability of documentary verifications and a five-year retention period for verification evidence. CheckFile's native audit trail module satisfies these requirements without custom development.

Onfido offers EU hosting as an option, but the platform was historically built on a multi-cloud architecture with US components. For UK firms that transfer personal data to EU-based processors, the UK-EU data bridge — confirmed in the UK adequacy regulations — simplifies compliance but remains subject to periodic review. A specific consideration: Onfido processes biometric data (facial prints), classified as special category data under Article 9 of UK GDPR as incorporated in the Data Protection Act 2018. Processing biometric data imposes enhanced obligations that client organisations must document in a Data Protection Impact Assessment (DPIA) — an additional compliance burden not required when using CheckFile.

Technical integration: 2 days vs 4-12 weeks

CheckFile integrates via a documented REST API in 2 to 5 working days. One API call per document: send the file, receive a structured JSON result containing extracted fields, confidence scores, and fraud flags. Webhooks handle asynchronous processing for high volumes. Native Salesforce and HubSpot connectors are available without additional development.

Onfido requires 4 to 12 weeks for a full biometric flow integration. This timeline reflects the complexity of orchestrating the complete journey: document capture, selfie video, liveness check, facial comparison, results delivery. The mobile SDK must be embedded in the front-end application, workflow rules configured in Onfido Studio, and result webhooks wired to back-end systems. For consumer-facing mobile onboarding, this investment is justified. For back-office document processing workflows — where documents arrive by email upload, portal submission, or internal system — it is unnecessary overhead.

For technical teams who want to evaluate CheckFile before committing, a free 48-hour pilot with a dedicated contact is available via our contact page.

Document fraud detection

CheckFile achieves a 94.8% fraud recall rate on a representative production corpus, with a 3.2% false positive rate — meaning 94.8% of fraudulent documents submitted are detected while only 3.2% of legitimate documents are incorrectly flagged. Detection logic covers typographic consistency analysis, file metadata comparison, pixel-level modification detection, and cross-referencing of extracted data against jurisdiction-specific and document-type-specific format expectations.

Onfido relies on Atlas AI for identity fraud detection: falsified identity documents, biometric spoofing (printed photographs, masks, deepfakes), and identity impersonation. Performance metrics are not publicly disclosed. The approaches are complementary: Onfido targets impersonation fraud (someone presenting another person's identity) while CheckFile targets documentary fraud (a document has been modified or fabricated).

Both fraud types appear in real compliance workloads. Firms exposed to false invoices, manipulated company registration documents, or altered payslips — scenarios common in supplier onboarding, lease applications, and credit underwriting — require documentary fraud detection that biometric-only platforms do not provide. For a broader view of identity verification options, see our identity verification solutions comparison.

When to choose CheckFile

CheckFile is the right choice when your requirements include at least one of these scenarios:

• Complete case file analysis: you need to verify documents beyond identity — company registration extracts, payslips, bank statements, proof of address, insurance certificates. CheckFile processes all document types in one API call per document.
• FCA and MLR 2017 compliance: you are subject to FCA oversight or MLR 2017 customer due diligence obligations covering beneficial ownership, source of funds, and business relationship purpose. European hosting and a native audit trail simplify your compliance documentation.
• High volume with budget constraints: at approximately £0.10 per document, CheckFile makes full automation viable at scale. Onfido's per-verification cost typically limits the scope of what can be automated cost-effectively.
• Rapid integration timeline: 2 to 5 days of development versus 4 to 12 weeks. For agile teams or projects with tight go-live schedules, this difference is decisive.
• Customisable validation rules: your sector or financial partners impose specific document validation logic that CheckFile's rules engine configures without bespoke development.

When to choose Onfido

Onfido remains the reference platform in these cases:

• Biometric identity verification is mandatory: your regulatory process requires selfie-to-document comparison with liveness detection — online bank account opening, investment platform onboarding, age verification with biometric certainty. This is Onfido's core competency.
• High-volume B2C mobile application: you have a consumer-facing mobile application and want an integrated identity verification flow with native iOS/Android SDK, capture guidance, and UX optimisation. Onfido Studio assembles this flow without development.
• Global identity document coverage: you operate across more than 32 countries and need to process varied identity document formats, including non-Latin scripts and NFC-enabled biometric passports.
• Comfortable KYC budget: the cost per verification is not a limiting factor and you prioritise the depth and certification level of biometric analysis.

Verdict

CheckFile and Onfido are complementary rather than directly competing. Onfido answers "who are you?" with a mature biometric stack and a decade-long track record in financial services. CheckFile answers "is your case file complete, authentic, and compliant?" with broad-spectrum documentary coverage and native regulatory compliance for European data residency requirements.

For UK firms subject to MLR 2017, FCA supervision, and the UK GDPR framework under the Data Protection Act 2018, CheckFile provides a more complete answer to the practical challenge of documentary compliance — at a fraction of the per-verification cost. Organisations that require both biometric identity checks and full document verification can combine Onfido for the selfie check and CheckFile for the remainder of the case file; both APIs operate independently within the same workflow.

Frequently Asked Questions

Can CheckFile and Onfido be used together in the same workflow?

Yes. Both platforms offer REST APIs and integrate without friction into a unified compliance workflow. The most common architecture involves Onfido handling biometric identity verification at onboarding, then CheckFile processing the remainder of the case file — company documents, payslips, bank statements, proof of address — with fraud detection and cross-document validation. Each API operates independently on its respective scope.

Is CheckFile compliant with FCA and MLR 2017 requirements?

CheckFile is hosted in the EU, compliant with UK GDPR under the Data Protection Act 2018, and certified to SOC 2 and ISO 27001 standards. The full exportable audit trail and configurable rules engine satisfy the traceability and due diligence requirements that the FCA imposes on regulated firms under MLR 2017 for anti-money laundering and counter-terrorist financing obligations.

What is Onfido's actual document coverage beyond identity documents?

Onfido's 3,400 document types are overwhelmingly official identity documents — passports, national ID cards, driving licences, residence permits — across 195 countries. Commercial documents (company registration certificates, articles of association), HR evidence (payslips, employment contracts), and financial proof (bank statements, source of funds) are not part of Onfido's native scope and require a complementary solution such as CheckFile.

What is the realistic migration timeline from Onfido to CheckFile?

CheckFile API integration typically takes 2 to 5 working days. Migration can be staged: begin with commercial and HR documents that fall outside Onfido's coverage, then extend to identity documents where CheckFile's 98.7% OCR accuracy and fraud detection add value. The free 48-hour pilot allows you to test against your actual document corpus before any contractual commitment.

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CheckFile verifies your documents in 4.2 seconds with 98.7% accuracy across 3,200+ document types. EU hosting, native GDPR compliance, transparent pricing at £0.10 per document.

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