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S-Corp Tax Client Agreement

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S-CORP TAX CLIENT AGREEMENT

Parties and Effective Date

This Engagement Agreement is entered into between the Tax Preparer and Client on Effective Date:

Entity Type and Taxpayer Identification

Select the entity type (check all that apply):







Contact and Business Information

Scope of Engagement

The Preparer will prepare the federal and applicable state S-Corporation income tax return(s) and related schedules for the tax year(s) indicated. The services specifically include preparation of the following returns and schedules:

Client Responsibilities

The Client shall provide complete, accurate and timely records, supporting documentation and representations necessary for preparation of the returns. The Client is responsible for determining that all information provided is true, correct and complete.

Preparer Responsibilities and Limitations

The Preparer will prepare returns in accordance with applicable tax laws and professional standards. The Preparer will not audit or otherwise verify the information provided by the Client, and disclaims responsibility for errors resulting from incomplete or inaccurate information supplied by the Client.

Fees, Billing and Payment

Fees are based on time, complexity, special filings and level of staff required. The Client agrees to pay all fees, retainers and costs as specified below.

Record Retention and Access

The Client is responsible for retaining all records, receipts, canceled checks and other documentation substantiating the information provided to the Preparer. The Preparer may retain copies of returns and related workpapers for the Preparer's files.

Confidentiality and Disclosure

The Preparer will maintain confidentiality of the Client's tax information except as required by law or professional obligation. The Client authorizes the Preparer to disclose tax return information to subcontractors engaged to assist in the preparation and to tax authorities as required.

Authorizations and Consents

The Client authorizes the Preparer to: (a) electronically file returns on behalf of the Client; (b) sign returns as authorized e-file signature provider where permitted; and (c) represent the Client before taxing authorities for matters related to the returns prepared under this agreement.



Limitation of Liability; Indemnification

The Preparer's liability for any claim arising from this engagement shall be limited to direct damages up to the amount of fees paid to the Preparer for the tax year(s) at issue. Neither party will be liable for consequential, incidental or punitive damages. The Client agrees to indemnify and hold the Preparer harmless from any liability, costs or penalties arising from the Client's failure to provide accurate or complete information.

Termination

Either party may terminate this engagement upon written notice. Client remains responsible for all fees and costs incurred through termination. If termination occurs prior to completion, the Preparer will deliver all completed work and retain files until fees are paid.

Governing Law and Dispute Resolution

This Agreement is governed by the laws of the State of . Any dispute arising under this Agreement will be resolved by binding arbitration unless both parties agree otherwise in writing.

Certification and Acknowledgement

By initialing and signing below the Client certifies and acknowledges the following statements:

1. The Client has provided all information necessary for accurate preparation of the returns and understands that the Preparer will rely on the information supplied.
2. The Client authorizes the Preparer to prepare and file returns on the Client's behalf and accepts responsibility for the accuracy of information provided.
3. The Client acknowledges that penalties and interest may be imposed by taxing authorities for incorrect or late information and that the Preparer is not responsible for penalties resulting from Client-supplied errors or omissions.
4. The Client agrees to pay fees as described in this Agreement and understands that the Preparer may retain records until outstanding fees are paid.
5. The Client certifies, under penalty of perjury, that the information provided to the Preparer is true, correct and complete to the best of the Client's knowledge.
6. The Client authorizes the Preparer to use the Client's taxpayer identification number for preparation and filing.

Additional Provisions

Client Name:

By:

Date:

Preparer Name:

By:

Date:

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What the S-Corp Tax Client Agreement Is

The S-Corp Tax Client Agreement is a written engagement that defines the relationship between a tax preparer or accounting firm and an S corporation client, specifying services such as preparation and filing of federal and state income tax returns, preparation of Schedule K‑1s, payroll tax coordination, and representation before tax authorities. It allocates responsibilities for providing records, sets fees and payment terms, and describes document retention, confidentiality, and consent for electronic delivery and signatures under the ESIGN Act and applicable state law. Properly executed, it clarifies scope of work and reduces disputes.

Why a Clear Agreement Matters

A clear S-Corp Tax Client Agreement protects both parties by documenting services, fees, and responsibilities, reducing ambiguity in tax reporting, enabling compliant electronic signatures under ESIGN/UETA, and establishing terms for engagement termination, correspondence with tax authorities, and data privacy obligations.

Why a Clear Agreement Matters

Who Typically Uses This Agreement

Tax preparers, CPAs, enrolled agents, S-Corp owners, and corporate controllers use this agreement to set expectations and authorize filings.

  • CPA firms managing S-Corp tax preparation, payroll coordination, and client representation before tax authorities.
  • Small business owners who serve as corporate officers and require clear filing and payment responsibilities.
  • Outsourced tax vendors and bookkeeping services contracting with S corporations for recurring returns.

The document supports compliance, reduces disputes, and documents consent for electronic authorizations and tax disclosures.

Representative Signer Profiles

Tax Preparer — CPA

A mid-sized CPA or tax practice acting as the preparer will use this agreement to set scope, billing, and representation terms, including authorization to e-file returns and to receive and distribute K‑1s on behalf of multiple S-Corp clients.

S‑Corp Officer — Owner

An S corporation owner or corporate officer signs to confirm the accuracy of records, grant authority to the preparer to file tax returns and represent the company, and accept electronic delivery and retention of tax documents under ESIGN/UETA terms.

Core Sections to Include in the Agreement

Core sections of an S-Corp Tax Client Agreement define scope, compensation, client and preparer obligations, authorization for filings, confidentiality, and change or termination procedures.

Scope of Work

Specifies federal and state income tax preparation, Schedule K‑1 preparation, payroll tax support, estimated tax assistance, filing method, and any advisory or bookkeeping services included or excluded from the engagement.

Fees & Billing

Details fixed or hourly fees, billing schedule, retainer requirements, expenses, late payment fees, and how fee changes are handled; includes authorization for electronic invoicing and payment methods.

Client Duties

Requires the client to provide accurate financial records, original receipts, bank statements, payroll records, timely responses to preparer requests, and written notification of ownership or entity changes.

Preparer Responsibilities

Commits the preparer to prepare returns in accordance with tax law, make reasonable inquiries, advise on S-Corp tax implications, and represent the client in IRS correspondence if engaged.

Electronic Consent

Document records client consent to receive records electronically, accept e‑signatures under ESIGN/UETA, and authorizes secure delivery of completed returns and K‑1s, and third‑party disclosures as permitted.

Limitations & Termination

Describes circumstances for termination, effect on outstanding fees, retention of workpapers, successor preparer cooperation, and dispute resolution methods such as mediation or jurisdiction selection.

Step-by-Step: Execute the Agreement Correctly

Complete these steps to execute an S-Corp Tax Client Agreement correctly across digital or paper workflows with accurate records.

  • 01
    Gather Documents: Collect prior year returns, financial statements, payroll records, and EIN confirmation.
  • 02
    Enter Client Data: Complete legal name, EIN, addresses, officer names, and contact emails.
  • 03
    Define Services: Select scope: returns, K‑1s, payroll, representation, and advisory.
  • 04
    Review and Sign: Confirm all fields, sign electronically under ESIGN, and distribute copies.

How to Configure an Online Agreement Workflow

Set up digital workflow to prefill client data, apply signature fields, require authentication, and record an audit trail for each executed agreement.

Field Configuration
Prefill Data Use templates to populate name, EIN, and addresses.
Signature Type Choose e-signature with audit trail or digital PKI signature.
Authentication Select email link, SMS code, or KBA as needed.
Storage Store signed PDF with versioning and retention tags.

Where to Send Executed Agreements and Copies

Typical routing for an executed S-Corp Tax Client Agreement determines who receives copies and how tax filings are submitted to payers and authorities.

  • Preparer Retains: Preparer stores signed agreement and workpapers for recordkeeping.
  • Client Copy: Client receives signed PDF and invoice via secure delivery.
  • Third Parties: Authorize sharing with payroll providers or tax advisors as needed.
  • IRS Filing: Authorization enables preparer to file returns electronically on client's behalf.

Distribution Methods and Platform Requirements

Use eSignature platforms that accept PDF/DOCX, integrate with accounting systems, and support audit trails and secure storage.

  • Formats: PDF, DOCX, and XML supported.
  • Integrations: Connects to QuickBooks, NetSuite, and Google Workspace.
  • Authentication: Email link, SMS code, or SSO.

Key Filing and Delivery Deadlines to Observe

Key filing and delivery deadlines affect S-Corp clients and their officers; meet these dates to avoid penalties and late filing consequences.

Form 1120-S return:

Due March 15 for calendar-year S corporations; file or extend to avoid penalties.

Schedule K-1 to shareholders:

Provide to shareholders by March 15 to support individual returns.

Estimated tax payments:

Quarterly due April, June, September, and January dates for shareholder estimated taxes.

1099-NEC reporting:

File and furnish by January 31 for nonemployee compensation payments.

Form 1040 personal return:

Personal returns due April 15; extensions permitted with Form 4868.

Penalties and Risks to Avoid

Late 1099 filing: $60–$330 per form depending on lateness.
Incorrect EIN: Triggers backup withholding and rejected filings.
Intentional disregard: $660+ per form; no maximum.
Missing signatures: May invalidate authorization for e‑filing.
Backup withholding: Rate is 24% on payments.
Data breach: HIPAA/CCPA exposures and penalties.

Security and Compliance Fundamentals

Encryption in transit: TLS 1.2/1.3 required for transmission security.
Encryption at rest: AES‑256 encryption for stored documents.
Certifications: SOC 2 Type II and ISO 27001 available.
HIPAA BAA: Business Associate Agreement available when required.
Audit Trail: Time stamps, IP addresses, and action logs.
Access Controls: SSO, role-based permissions, and MFA.

Real-World Examples of eSignature for Tax Agreements

These concise examples show how organizations use eSignature workflows to execute tax client agreements, maintain compliance, and speed processing.

Martin Properties

Martin Properties needed an efficient way to execute client agreements and tax authorizations for multiple properties and owners.

  • Mobile signing enabled faster turnarounds for closings.
  • Tim Martin, Founder, reported processing and executing documents online with full compliance and security, improving turnaround and reducing in-person meetings while ensuring signed agreements reached required parties promptly.

Fertility Centers of Illinois

A healthcare provider handling sensitive patient billing and tax forms required secure e-sign workflows that meet HIPAA standards.

  • HIPAA-compliant signing preserved patient privacy and data control.
  • John Butler, Founder, praised the platform's API and responsiveness, enabling secure, compliant signatures and simplifying recordkeeping and receipt of executed fee authorizations.

Best Practices for Accurate and Efficient Completion

Follow these practical practices to reduce errors, protect client data, and accelerate S‑Corp tax engagement execution while ensuring legal compliance.

Verify client identity and EIN
Confirm the S‑Corp legal name and EIN against IRS records or the client’s IRS CP notices, and obtain government ID for the signing officer when using stronger authentication to avoid mismatches that can cause backup withholding or rejected e‑filings.
Be explicit about scope and deliverables
List every tax filing, schedule, and advisory item included or excluded; tie fees to deliverables and provide estimated timelines. Clear scope prevents disputes and supports accurate billing and audit defense.
Use appropriate authentication levels
Require SMS, SSO, or KBA for signers with authority; use basic email links only for low-risk consents. Strengthen authentication when authorizing e‑filing or third‑party disclosures.
Keep thorough workpapers and audit trail
Retain copies of signed agreements, uploaded source documents, correspondence, and the platform audit trail (IP, timestamps). These records support IRS examinations and legal defense.

eSignature Pricing and Feature Comparison

Comparison of common eSignature vendor price points and capabilities relevant to executing S‑Corp Tax Client Agreements and high-volume tax workflows.

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 trial Varies by plan Varies by plan Varies by plan Varies by plan
Bulk Send Yes Yes Yes Yes No
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No

Common Questions About Signing and Compliance

Common questions and concise answers about signing, e‑signature legality, EIN errors, revocation, retention, and submission of signed S‑Corp tax agreements.


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