Is an electronic signature valid?

Yes. Electronic signatures meet legal validity under the ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted, provided intent, consent, attribution, and record retention requirements are satisfied.

When is notarization required?

Notarization is generally not required for most subcontract amendments; check the original subcontract and local law. If the contract or statutory rule requires notarization, follow state notary rules or RON procedures.

What if names or titles differ?

Mismatched legal names or missing signatory titles can create enforceability questions. Confirm corporate signatory authority and correct legal names before execution to avoid rejection.

Can I use a change order form instead?

Yes; a change order that clearly amends the subcontract is acceptable if it references the original agreement and is signed by authorized parties. Maintain the executed change order with the contract file.

How should I store executed amendments?

Retain a signed PDF with a complete audit trail in your contract repository and back up per your retention policy; include metadata linking to the original subcontract for easy retrieval.

What if a party refuses to sign?

If a counterparty refuses, document the refusal in writing, preserve communication, and consult counsel about remedies under the subcontract, including potential claims or alternative dispute resolution.

Electronic Signature
Templates
Miscellaneous
Subcontract Change Amendment

Subcontract Change Amendment

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

SUBCONTRACT CHANGE AMENDMENT

This Subcontract Change Amendment (the Amendment) is made effective as of by and between Contractor Name: and Subcontractor Name: .

Contractor Address: Subcontractor Address:

WHEREAS

WHEREAS, Contractor and Subcontractor entered into that certain Subcontract dated (the Original Subcontract), under which Subcontractor agreed to perform certain work for Contractor; and

WHEREAS, the parties desire to amend the Original Subcontract to change the scope of work, contract sum, and schedule as set forth in this Amendment; and

WHEREAS, except as expressly amended by this Amendment, all terms and conditions of the Original Subcontract shall remain in full force and effect.

CHANGE ORDER IDENTIFICATION

Amendment / Change Order No.:

SCOPE OF WORK

The Scope of Work of the Original Subcontract is hereby amended to include the following change(s). Subcontractor shall perform the additional or modified work described below in accordance with the terms of the Original Subcontract except as expressly modified herein.

Description of Change(s):

CONTRACT PRICE AND PAYMENT TERMS

As a result of the change(s) described above, the Contract Sum is hereby adjusted as follows:

Net Increase (Decrease) to Contract Sum: New Contract Sum (if adjusted): Payment Schedule / Method:

Late payments shall accrue interest at the rate of on any undisputed amounts outstanding beyond thirty (30) days from the invoice date, unless otherwise agreed in writing.

SCHEDULE AND TIME IMPACT

The parties agree the time for performance is modified as follows. Original Contract Completion Date: .

New Contract Completion Date: .

Net Adjustment to Contract Time (in calendar days):

TERM, TERMINATION, AND NOTICE

Except as modified by this Amendment, the term and termination provisions of the Original Subcontract shall remain in full force and effect. Either party may terminate this Amendment only in accordance with the termination provisions of the Original Subcontract, provided that the terminating party shall give days' prior written notice where notice is required.

CONFIDENTIALITY

Each party shall treat as confidential and shall not disclose to any third party any proprietary or confidential information of the other party disclosed in connection with the performance of this Amendment, except to the extent disclosure is required by law or is necessary to perform the obligations under this Amendment. The receiving party shall take reasonable measures to protect such confidential information and shall be responsible for any breach of confidentiality by its employees, agents, or subcontractors.

REMAINDER OF SUBCONTRACT; REPRESENTATIONS

Except as expressly modified herein, all terms, covenants, conditions, and provisions of the Original Subcontract remain unchanged and in full force and effect and are hereby ratified and confirmed. Each party represents and warrants that it has full power and authority to enter into this Amendment, that the person signing below is duly authorized, and that this Amendment constitutes a valid and binding obligation enforceable against such party in accordance with its terms.

GOVERNING LAW

This Amendment shall be governed by and construed in accordance with the laws of the state identified below, without regard to conflict of law principles.

Governing Law State:

ENTIRE AGREEMENT

This Amendment, together with the Original Subcontract and any previously executed amendments expressly referenced herein, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior and contemporaneous agreements, representations, and understandings, whether written or oral, relating thereto. No amendment or modification of this Amendment shall be effective unless in writing and signed by both parties.

MISCELLANEOUS

All obligations, warranties, indemnities and insurance requirements of the Original Subcontract shall remain in effect and shall apply to the work performed under this Amendment unless specifically modified herein. To the extent of any conflict between this Amendment and the Original Subcontract, the terms of this Amendment shall control.

Additional Provisions / Notes:

Contractor Printed Name:

By:

Date:

Subcontractor Printed Name:

By:

Date:

What a Subcontract Change Amendment Is

A Subcontract Change Amendment is a written modification to an existing subcontract that documents agreed changes to scope, price, schedule, or other material terms. It attaches to the original subcontract and adjusts only the clauses identified within the amendment. Properly executed amendments preserve the original contract’s framework while creating a clear, enforceable record of the parties’ updated obligations. For construction and service projects, amendments commonly cover change orders, time extensions, revised deliverables, payment adjustments, and revised site or safety requirements.

Why Use a Formal Subcontract Change Amendment

A formal amendment creates an auditable record of agreed changes, reduces disputes about scope or payment, and clarifies the parties’ updated rights and deadlines. It helps maintain a single contract archive while ensuring downstream stakeholders see the authoritative terms.

Who Typically Prepares and Signs This Amendment

Typical participants include general contractors, subcontractors, project managers, and procurement or legal teams who administer the original subcontract.

General Contractor project manager responsible for change order approval and downstream coordination.
Subcontractor project lead or company officer who accepts revised scope, price, or schedule.
Owner or construction manager when owner-directed changes affect subcontract terms or payment.

Signatory authority and internal approval workflows should be confirmed before circulation to avoid invalid signatures or execution delays.

Representative Signers and Their Roles

Project Manager

Typically the general contractor’s project manager signs to confirm operational acceptance of the change and authorize budget or schedule adjustments on behalf of the contractor organization.

Subcontractor Officer

An authorized officer or contract administrator of the subcontractor signs to acknowledge acceptance of modified terms, confirm revised pricing, and assume the updated obligations.

Essential Parts of a Professional Amendment

A complete amendment is concise, cross-references the original subcontract, and contains clear effective dates, scope descriptions, and signature blocks for authorized individuals.

Reference

Cite the original subcontract number, original effective date, and the parties’ names so the amendment clearly links to the base agreement.

Amendment Scope

Describe precisely what is changing: deliverables, locations, quantities, methods, or performance standards. Avoid vague language to reduce later interpretation disputes.

Price and Payment

State the adjusted contract sum, itemized cost changes, payment schedule, and any retainage or conditional payment triggers resulting from the change.

Schedule

Specify revised milestones or completion dates, any float changes, and whether liquidated damages or time extensions apply due to the amendment.

Warranties & Liabilities

Clarify whether existing warranties continue, whether the change creates new warranty obligations, and how liability for the changed work is allocated.

Signatures

Include printed name, title, organization, signature line, and date for each authorized party; note whether notarization is required by contract or law.

Step-by-Step: Completing a Subcontract Change Amendment

Follow these sequential steps to prepare, approve, sign, and distribute the amendment while preserving compliance and traceability.

01

Identify Change: Document the change, reasons, and scope in writing.
02

Estimate Cost: Prepare price adjustments and supporting estimates.
03

Obtain Approvals: Secure internal and client approvals per contract thresholds.
04

Execute Amendment: Collect authorized signatures and circulate final copies.

Configuring an Online Amendment Workflow

Set up routing, required fields, and authentication in your e-sign workflow to match project approval processes and compliance requirements.

Field	Configuration
Required Signers	List the exact parties and their signing order
Authentication	Choose email, SMS code, or KBA as needed
Conditional Fields	Show/require fields only when applicable
Audit Trail	Enable full timestamps, IP capture, and download logs

Where to Send and How to Route the Executed Amendment

After execution, distribute signed copies to all contract parties and retain a master file in the project records for audit and payment processing.

General Contractor: Send certified copy for project records and change order processing
Subcontractor: Provide the signed amendment for onsite teams and invoicing
Owner/Client: If required, deliver a countersigned copy for approval and payment release
Document Archive: Store master PDF with audit trail in the contract repository

Sharing, Signing, and Storage Options

Use secure digital delivery and signing tools that preserve an audit trail, timestamp, and signer attribution.

Email Delivery: Standard method; ensure encrypted attachments
Secure Link: Provide expiring links with optional access codes
Integration: Sync copies to PM/ERP systems like Procore or NetSuite

Keep distribution consistent with internal records policies and ensure all versions include the execution certificate and metadata for future audits.

Typical Timing and Processing Expectations

Amendment timing impacts payment, scheduling, and claims. Track critical dates and allow lead time for approvals and procurement of materials.

Request to Draft:

Begin drafting within 3–5 business days of approved change

Internal Approvals:

Allow 5–10 business days depending on contract thresholds

Signature Collection:

Digital signing often completes within 24–72 hours

Payment Processing:

Payment timing follows amended invoice terms and pay schedules

Record Retention:

Archive executed amendment immediately after signatures

Key Milestones in the Amendment Lifecycle

Track these sequential milestones from request through archive to ensure compliance and avoid payment or schedule disputes.

01

Change Request Filed

Initiator documents scope change and impact

02

Estimate and Approval

Costs and schedule reviewed and authorized

03

Amendment Drafted

Legal/contract team prepares the amendment text

04

Execution and Archive

Parties sign, distribute, and store final copy

Common Mistakes to Avoid

Vague scope language that leaves deliverables open to interpretation and later dispute.
Missing or inconsistent contract reference data making the amendment hard to tie to the original subcontract.
Using initials or incomplete signatures where full authorized signatures are required under the subcontract.
Failure to update schedule or payment milestones, causing downstream conflicts and late claims.

Principal Risks and Contractual Consequences

Payment Delay: Delays in payment

Scope Dispute: Disagreement over obligations

Liability Shift: Unintended risk allocation

Termination Risk: Contract termination exposure

Lien Claims: Mechanic’s lien complications

Regulatory Noncompliance: Potential statutory penalties

Industry Examples and Real-World Use

These short examples show how organizations use amendments to manage change without restarting contract processes.

Martin Properties — Tim Martin

Project required expedited repairs after storm

Amendment added a week extension and price adjustment
"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."

BIS — Dan Rotelli

Large bid scope changed during mobilization

Amendment reallocated tasks and payment milestones
"We felt most comfortable with airSlate SignNow given their SOC 2 certification and strict focus on ESIGN and UETA act compliance."

Security, Compliance, and Storage Essentials

Encryption: TLS 1.2/1.3 in transit; AES-256 at rest

Audit Trail: Timestamp, IP address, and action log

Compliance: ESIGN, UETA, SOC 2 Type II

HIPAA Support: BAA available for covered entities

Access Controls: Role-based permissions and SSO

File Formats: PDF and DOCX with embedded metadata

eSignature Pricing Snapshot for Amendment Workflows

Compare common vendor starting prices and key capabilities relevant to signing and managing subcontract amendments. signNow is listed first per vendor comparison conventions.

	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	Varies	Varies	Varies
Bulk Send	Yes (Premium tier)	Yes	Yes	Yes	No
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

Frequently Asked Questions and Common Troubleshooting

Answers to common execution, validity, and storage questions to help prevent delays and ensure enforceability of amendments.

Need help? Contact support

Is an electronic signature valid?
Yes. Electronic signatures meet legal validity under the ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted, provided intent, consent, attribution, and record retention requirements are satisfied.
When is notarization required?
Notarization is generally not required for most subcontract amendments; check the original subcontract and local law. If the contract or statutory rule requires notarization, follow state notary rules or RON procedures.
What if names or titles differ?
Mismatched legal names or missing signatory titles can create enforceability questions. Confirm corporate signatory authority and correct legal names before execution to avoid rejection.
Can I use a change order form instead?
Yes; a change order that clearly amends the subcontract is acceptable if it references the original agreement and is signed by authorized parties. Maintain the executed change order with the contract file.
How should I store executed amendments?
Retain a signed PDF with a complete audit trail in your contract repository and back up per your retention policy; include metadata linking to the original subcontract for easy retrieval.
What if a party refuses to sign?
If a counterparty refuses, document the refusal in writing, preserve communication, and consult counsel about remedies under the subcontract, including potential claims or alternative dispute resolution.

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