Is an electronic signature valid?

Yes. Electronic signatures are legally valid under the ESIGN Act (15 U.S.C. ch. 96) and UETA in most states when intent, consent, attribution, and reliable retention are present.

When is notarization required?

Notarization depends on state law and the document purpose; real estate or certain agency powers often require notarization. Check the applicable state notary rules before relying on electronic-only execution.

How should I correct an error on a submitted form?

Do not edit the executed record. Create an amendment or cancellation and complete a replacement form, capturing signatures and audit trail for both documents to preserve history.

What authentication level is sufficient?

Simple identity may use an emailed link; higher-risk authority should use multi-factor authentication, ID credential analysis, or KBA to strengthen attribution.

How long must I retain the form?

Retention depends on document purpose: follow IRS (3 years), HIPAA (6 years) and any industry-specific longer periods; preserve the audit trail with the document.

How do I revoke a third party's authority?

Execute a revocation notice, update internal systems, notify affected parties, and store the revocation with the original form. Process revocations promptly to avoid unauthorized actions.

Electronic Signature
Templates
Miscellaneous
Client Third Party Information Form

Client Third Party Information Form

This template is fully customizable. Edit the text, fill out the fields, and send it for signature. Give it a try!

CLIENT THIRD PARTY INFORMATION FORM AND AUTHORIZATION AGREEMENT

Client Name: Client ID/Account Number:

Recitals

WHEREAS, Client requires that certain third parties be authorized to access client records, receive correspondence, or act on behalf of Client in defined matters; and

WHEREAS, Third Party seeks to obtain such access or authority and Client is willing to provide limited authorization subject to the terms and conditions of this form and authorization agreement;

NOW, THEREFORE, the parties agree as set forth below.

Client Information

Primary Contact Name Client Mailing Address Client Phone / Email

Third Party Information

Third Party / Organization Name Representative Name (if applicable) Third Party Contact Information

Relationship / Role (select all that apply):

Authorized Representative Billing Contact Technical Contact Legal Counsel Other:

Authorization Details / Scope of Access

Describe the specific scope of authority, records, systems, or actions the Third Party is authorized to access or perform Permitted Methods of Access

Documents Provided to Verify Authority

Government-issued photo identification provided Power of Attorney provided Corporate resolution or letter of authorization provided

Payment Terms (If applicable)

Amount payable for Third Party services: $

Payment Schedule / Billing Instructions Late Payment Fee

Term and Termination

Effective Date: Termination Date (if any):

Notice Period for Termination by Either Party

Either party may terminate this authorization upon written notice as specified above. Termination does not affect obligations incurred prior to termination, including payment obligations and confidentiality obligations.

Confidentiality

The Third Party shall maintain as confidential all client information obtained under this authorization and shall not disclose such information except as necessary to perform authorized duties or as required by law. The Third Party shall implement reasonable safeguards to protect confidential information and shall promptly notify Client of any unauthorized disclosure or security incident affecting Client data.

Representations, Warranties and Indemnity

The Third Party represents that all information and documentation provided to Client are true, complete and current, and that Third Party has the authority to act in the capacities indicated. Third Party shall indemnify and hold Client harmless from any claims, losses, or liabilities arising from Third Party's unauthorized acts, negligence, or breach of this Agreement.

Governing Law

This form and any authorization granted hereunder shall be governed by and construed in accordance with the laws of the state specified by Client. The parties agree that venue for any dispute shall be the courts of that state.

Entire Agreement

This form, together with any attachments, exhibits, and verification documents, constitutes the entire agreement between Client and Third Party concerning the authorized access and supersedes all prior written or oral agreements on the subject. Any amendment must be in writing and signed by both parties.

Certification and Consent

By signing below, Client certifies that the information provided is accurate and that Client authorizes the Third Party to act only within the scope described above. Third Party acknowledges receipt of the verification documents indicated and agrees to comply with the terms of this form.

I certify under penalty of perjury that the information provided on this form is true and correct and I agree to the terms stated herein.

Client Printed Name:

By:

Date:

Third Party Printed Name:

By:

Date:

What the Client Third Party Information Form Is

The Client Third Party Information Form collects identifying and contact information about an outside representative or agent acting on behalf of a client, such as an attorney, broker, consultant, or authorized power-of-attorney. It documents the third party's legal name, organization, role, authority scope, contact details, identification numbers, and any restrictions or special handling instructions. The form is used to verify authority to act, to route approvals, and to record consent for information sharing. Proper completion reduces compliance risk and creates a clear audit trail for future disputes or verifications.

Why this form matters for compliance and recordkeeping

A completed Client Third Party Information Form establishes who may act for the client, documents consent to share information, and creates a verifiable record for audits, billing, and legal purposes. It reduces ambiguity about authority and supports regulatory obligations.

Who typically completes or receives this form

Use this form whenever an organization needs a documented delegation of authority or a clear chain of communication with an external agent.

Legal departments and law firms handling client authorizations and power-of-attorney confirmations.
Finance teams verifying billing contacts, payees, or authorized payment approvers.
Real estate brokers and title agents documenting third-party closing representatives.

Primary signers and contact roles

Client Representative — Authorized Signatory

A client-level officer, owner, or appointed agent who confirms the third party appointment and signs to authorize information sharing. This signer provides identity verification and is responsible for the delegation scope.

Third-Party Representative — Agent

An external individual or organization acting on the client's behalf. The agent should provide proof of identity, organization affiliation, and a statement of the authority being exercised.

Core elements to include in a professional form

A well-structured Client Third Party Information Form groups identification, authority, contact, verification, scope, and consent to support operational and legal needs.

Identifying Information

Collect full legal name, business name if applicable, tax identification or EIN, and any registration numbers so records match external databases and payments can be reconciled against tax or vendor files.

Contact Details

Include mailing address, physical address if different, daytime phone, mobile, and a business email to ensure reliable delivery of notices and to support authentication and audit trails.

Authority Scope

Describe specific powers granted (signing contracts, receiving statements, submitting claims) with clear start and end dates or event-based triggers to limit unintended authority expansion.

Verification Evidence

Specify required ID documents, business affiliation proof, or notarization requirements and record how verification was completed to strengthen defensibility in audits or disputes.

Consent and Data Access

Detail what client data the third party may access, any redaction limits, and whether electronic delivery is permitted to satisfy privacy and regulatory obligations.

Restrictions and Revocation

Provide a field for special conditions, geographic or transaction limits, and instructions for how the client or organization can revoke or amend the authorization.

Step-by-step: completing and accepting the form

Follow these steps to gather, verify, and retain third-party authorization efficiently and with a clear record.

01

Prepare Form: Load template, verify required fields, attach supporting document checklist.
02

Collect Details: Obtain legal names, contacts, authority scope, and ID proofs from the third party.
03

Verify Identity: Match IDs, confirm organization affiliation, and record verification method.
04

Sign and Store: Acquire signatures, record timestamps, and store the completed form in the retention system.

Configuring an online workflow for this form

Set up an electronic workflow that enforces required fields, routes approvals, and captures an audit trail for each signing event.

Field	Configuration
Required Fields	Make name, authority scope, signature, and proof attachments mandatory
Routing Logic	Route to client approver, compliance reviewer, then storage
Authentication	Use email link plus optional SMS code or KBA for higher assurance
Storage Location	Auto-save to secure records system with retention tags

Digital signing and platform considerations

Ensure chosen eSignature software supports required compliance features such as ESIGN/UETA adherence, optional two-factor authentication, and long-term storage with access controls.

Signature Audit: Capture timestamp, IP, and signer authentication
Document Security: Encryption in transit and at rest
Integrations: Connect to CRM and document storage systems

Where completed forms are sent and how they circulate

A clear routing plan reduces processing time and ensures records are available to all required parties.

Submit to Client: Send signed copy to client contact and authorized signatory
Notify Internal Teams: Email compliance, billing, and account managers with the record
Archive Securely: Store PDF with audit trail in records system
Enable Access: Grant read access based on roles and retention policy

Timing considerations and processing expectations

Understand deadlines for verification, payments, and retention to avoid service disruption or compliance issues.

Verification Window:

Verify identity within 3 business days to prevent delays

Payment Setup:

Allow 7–10 business days for vendor onboarding and ACH setup

Record Retention Start:

Retention countdown begins on the document execution date

Revocation Handling:

Process revocation requests within 5 business days

Audit Availability:

Provide records during audits within statutory timelines

Common mistakes that cause delays or compliance issues

Omitting required attachments such as power-of-attorney or proof of affiliation, which halts processing and increases verification time.
Entering informal or abbreviated names that do not match government ID or tax documents, causing payment or tax-reporting mismatches.
Failing to define the limits of authority, which can lead to unauthorized transactions or disputes over scope.
Neglecting to capture or store the audit trail and timestamps, undermining legal defensibility in a rights or access dispute.

Consequences of incomplete or inaccurate forms

Payment Withholding: Backup withholding may apply

Tax Reporting Errors: Incorrect TINs trigger IRS penalties

Contractual Disputes: Unauthorized signings risk contract challenges

Regulatory Fines: Industry regulators may assess fines

Operational Delays: Onboarding and payments can be delayed

Reputational Harm: Client trust can be eroded

Supporting documents and export options to keep with the form

Attach standard supporting documents and maintain export options for portability and long-term preservation.

Required Attachments

Power-of-attorney, corporate resolution, or representation letter should be attached and referenced on the form for verification and audit purposes.

Proof of Identity

Government-issued ID images or verification reports should be captured and stored alongside the form to satisfy compliance checks.

Export Formats

Save executed records as PDF/A for archival; keep a copy of the native fillable document (DOCX) and the eSignature audit trail.

Access Logs

Preserve access and change logs with each export to establish chain-of-custody for legal or regulatory review.

Practical tips to improve accuracy and speed

Adopt consistent procedures for intake, verification, and storage to reduce errors and speed processing.

Use Standardized Templates

Employ a consistent, reviewed template that includes required fields, attachments checklist, and clear instructions. Standardization minimizes omissions, reduces legal review time, and simplifies mapping into downstream systems for payments or account updates.

Require Attachments

Enforce mandatory uploads for proof of authority and ID within the workflow. Automated checks and conditional rules prevent incomplete submissions that later require manual follow-up or halt processing.

Log Verification Steps

Document who verified identity, by what method, and when it occurred. Recording this information in the audit trail reduces dispute risk and supports regulatory examinations.

Plan Revocation Processes

Create a clear revocation method and retention policy so the organization can promptly revoke delegated rights, notify downstream teams, and update systems to prevent unauthorized actions.

Real-world examples of how organizations use the form

These examples show different use cases and the outcomes organizations achieved by documenting third-party authority.

Martin Properties – Onboarding Agents

A property management firm required uniform third-party designations to streamline closings and vendor payments.

Authorized field agents signed digital forms remotely to accept assignments.
"I can process and execute all of these documents online with 100% compliance and built-in security. Whether on mobile or working offline, I can get forms back to their necessary parties efficiently."

Fertility Centers of Illinois – Patient Representatives

A healthcare provider used a tailored form to capture consent for third-party billing and communications.

The form included HIPAA-specific consent language and proof-of-authority requirements.
"The airSlate SignNow team has been exceptional, responsive, the API has been great, and we're extremely happy that we chose airSlate SignNow as a company."

Frequently asked questions and troubleshooting

Answers to common questions about authority, signatures, notarization, and recordkeeping for third-party authorizations.

Need help? Contact support

Is an electronic signature valid?
Yes. Electronic signatures are legally valid under the ESIGN Act (15 U.S.C. ch. 96) and UETA in most states when intent, consent, attribution, and reliable retention are present.
When is notarization required?
Notarization depends on state law and the document purpose; real estate or certain agency powers often require notarization. Check the applicable state notary rules before relying on electronic-only execution.
How should I correct an error on a submitted form?
Do not edit the executed record. Create an amendment or cancellation and complete a replacement form, capturing signatures and audit trail for both documents to preserve history.
What authentication level is sufficient?
Simple identity may use an emailed link; higher-risk authority should use multi-factor authentication, ID credential analysis, or KBA to strengthen attribution.
How long must I retain the form?
Retention depends on document purpose: follow IRS (3 years), HIPAA (6 years) and any industry-specific longer periods; preserve the audit trail with the document.
How do I revoke a third party's authority?
Execute a revocation notice, update internal systems, notify affected parties, and store the revocation with the original form. Process revocations promptly to avoid unauthorized actions.

eSignature vendor comparison for processing this form

A concise vendor feature and pricing comparison focused on baseline capabilities relevant to Client Third Party Information Forms.

	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-day free trial	Varies by vendor	Varies by vendor	Varies by vendor	Varies by vendor
Bulk Send	Yes	Yes	Yes	Yes	No
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

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