Qualified Electronic Signature QES for Secure Signing
Award-winning eSignature solution
What a qualified electronic signature QES is
A qualified electronic signature QES is the highest-assurance electronic signature tier under eIDAS, built from a qualified certificate and a qualified signature creation device. In practice, the signer’s identity is verified, the signature is created under their sole control, and the signed file is cryptographically linked to that identity. For U.S. users, it is best understood as a strong, evidence-rich signing method that supports cross-border transactions and helps document who signed, when, and what was signed.
Why QES matters for U.S. transactions
QES can reduce disputes by pairing strong identity proof with a tamper-evident record, which helps business teams handle higher-risk agreements more consistently. Under ESIGN and UETA, enforceability still depends on intent, consent, and attribution, but a stronger signature record usually improves evidentiary support.
QES implementation pain points
Identity proof can fail if the signer’s government ID, selfie check, or certificate data does not match the record. Cross-border deals may need QES for EU parties, while U.S. workflows often rely on ESIGN and UETA instead. Weak authentication or shared credentials can undermine attribution and make the signature record harder to defend. Missing retention rules, audit logs, or certificate status data can create gaps in later compliance reviews.
Who uses QES and where it fits
Real estate
Real estate teams use QES for lease agreements, closing documents, and remote approvals that need stronger identity proof.
Regulated records
Healthcare and finance teams use QES for sensitive forms, consent records, and regulated approvals with detailed audit needs.
Typical users of QES
Teams in real estate operations often need stronger signer verification for leases, closing packets, and broker approvals. signNow customer stories from Martin Properties and similar property workflows show how mobile signing and compliance-focused records help keep transactions moving without in-person meetings or paper handling. Operations leaders in finance, healthcare, and enterprise services use QES when document integrity and identity proof matter more than speed alone. signNow customer stories from Tech Data, Xerox, and Fertility Centers of Illinois reflect the need for reliable routing, integration with existing systems, and audit-ready records.
Best ROI. Our customers achieve an average 7x ROI within the first six months.
Scales with your use cases. From SMBs to mid-market, airSlate SignNow delivers results for businesses of all sizes.
Intuitive UI and API. Sign and send documents from your apps in minutes.
Key QES features and benefits
QES combines identity proof, cryptographic integrity, and audit evidence so teams can handle sensitive signing with more confidence and less manual review.
Identity proof
QES records who signed, when they signed, and how identity was verified, which helps teams defend higher-risk agreements and reduce signature disputes.
Qualified certificate
A qualified certificate ties the signature to a verified identity, giving the signed file stronger legal weight in cross-border and regulated workflows.
Tamper evidence
Tamper-evident sealing detects post-signing changes, so document edits become visible and the record stays easier to trust later.
Audit trail
Audit trails capture timestamps, IP data, and signer actions, creating a clearer chain of custody for reviews and disputes.
Sole control
Sole-control signing keeps the signature under the signer’s direct control, which supports stronger attribution and better non-repudiation.
Cross-border use
Cross-border readiness helps teams handle EU QES requirements while keeping U.S. ESIGN and UETA workflows organized.
How QES works step by step
QES follows a controlled signing sequence that links identity, signature creation, and evidence into one defensible record.
Verify identity: The signer is verified with ID, OTP, or another approved method. Create signature: The document is signed under the signer’s sole control. Seal record: The system seals the file and records timestamps. Store evidence: The completed package stores evidence for later review or export.
Quick setup for QES signing
Use a short setup path to prepare a QES workflow, send it, and confirm the signed record.
Prepare file:
Upload the document and assign the signer. Set verification:
Choose the required identity check. Request signature:
Send the signing request. Check evidence:
Review the completed audit trail.
Recommended QES workflow setup
Use stronger identity checks, sealed records, and defined retention rules for regulated or cross-border signing.
| Setting | Recommendation |
|---|---|
| Authentication method | ID verification plus OTP |
| Signature type | Qualified certificate |
| Audit trail | Enable full event logging |
| Document retention | 6 years for HIPAA records |
| Encryption | TLS 1.2/1.3 and AES-256 |
Platform requirements for QES
QES signing works in modern browsers and mobile apps, with secure transport and device support across desktop and mobile environments.
Desktop browsers Chrome, Firefox, Edge Operating systems Windows, macOS, Android, iOS Mobile devices iPhone, iPad, and Android phones
For regulated deployments, managed devices, SSO, and certificate controls matter as much as browser support. Teams should also confirm TLS 1.2 or TLS 1.3, account provisioning rules, and any certificate or retention requirements before rollout.
Security and compliance controls
Transport security:
Storage encryption:
Control report:
Security management:
Healthcare compliance:
Privacy and trust:
QES in real workflows
Customer stories show how QES-style controls fit regulated, mobile, and integration-heavy document processes.
Real estate operations
A property operations team needed faster lease execution with stronger signer verification and a clearer record of who approved each document.
- Martin Properties used online signing for mobile workflows.
- The team kept compliance and security in the record.
The workflow supported remote execution, while the audit trail and identity checks helped the team keep documents organized and defensible across locations.
Enterprise operations
An enterprise operations group needed reliable routing between systems and a signing process that fit existing approval paths without extra manual handling.
- Xerox connected signing to NetSuite workflows.
- The right signatures reached the right documents.
The integration-centered workflow reduced routing friction and helped the team match signatures to the correct records, formats, and business systems.
Best practices for QES
A careful setup keeps QES records easier to verify, retain, and defend during audits or disputes.
Match verification to risk
Define signing order
Store the full record
Align policy and controls
QES troubleshooting and FAQs
These answers focus on plan limits, compliance requirements, and the evidence needed to support QES-related signing workflows.
signNow Business includes legally binding eSignatures, audit trails, templates, and mobile apps. For HIPAA use, a BAA is required, and QES or higher-assurance controls may be added on Site License plans.
signNow supports ESIGN and UETA compliance for U.S. transactions. For EU QES workflows, the legal standard comes from eIDAS, and the signature must be tied to a qualified certificate and qualified signature creation device.
If the audit trail looks incomplete, confirm that signer authentication, timestamps, and document history were enabled before sending. signNow records activity details that support evidence under ESIGN, UETA, and HIPAA workflows.
If a healthcare file includes PHI, use a BAA and keep encryption at rest and in transit enabled. HIPAA requires unique user identification, access controls, integrity controls, and audit controls.
If a signer cannot complete the request on mobile, check browser support, app version, and device permissions. signNow supports desktop and mobile signing, and mobile-created eSignatures remain valid under ESIGN and UETA.
If you need higher assurance for regulated records, use the plan and controls that match the document type. signNow’s Site License supports add-ons for HIPAA, 21 CFR Part 11, and QES workflows.
Vendor comparison for QES
The table compares legal baseline features and QES-related availability across leading vendors.
| signNow | DocuSign | Adobe Sign | PandaDoc |
|---|---|---|---|
| ESIGN and UETA | Yes | Yes | Yes |
| Audit trail | Yes | Yes | Yes |
| QES support | Site License | Enterprise | Business and higher |
| Envelope cap | No cap | 100/year | Not verified |
Rollout and retention timeline
Use one timeline to plan rollout steps and keep retention rules aligned with regulated records.
Day 0:
Day 1:
Week 1:
7-day trial:
HIPAA retention:
ESIGN and UETA:
QES records:
Policy review:
Risks of improper QES use
Weak attribution
Incomplete audit trail
Retention gap
Cross-border mismatch
What the audit trail records
The audit trail turns signing activity into a time-stamped technical record that supports later review and verification.
Signer authentication:
Timestamp capture:
Document hashing:
Tamper-evident sealing:
Event history:
Retrieval and export:
Pricing and plan snapshot
Annual pricing and feature notes vary by vendor, so the table uses verified figures and marked gaps where data is not confirmed.
| signNow | DocuSign | Adobe Sign | PandaDoc | HelloSign | |
|---|---|---|---|---|---|
| Starting price | $8/user/mo | $15/user/mo | $14/user/mo | $19/user/mo | $15/user/mo |
| Free trial | 7 days | Not verified | Not verified | Not verified | Not verified |
| Bulk send | Business Premium | Not verified | Not verified | Not verified | Not verified |
| Audit trail | Included | Included | Included | Included | Included |
| HIPAA compliance | BAA required | BAA available | BAA available | Not verified | Not verified |
Key performance indicators that demonstrate SignNow's proven track record.