Is an e-signature legally binding?

Yes, electronic signatures are legally binding under the federal ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted, provided the parties demonstrate intent, consent to electronic records, attribution, and reliable record retention.

When is notarization required?

Notarization depends on state law and the nature of the document; certain documents (deeds, affidavits) often require notary acknowledgment—verify specific state requirements with the state notary office.

Who can sign for a company?

Authorized signers are those with delegated authority (officers, agents with written authorization); capturing signatory title and capacity in the signature block helps prove authority.

How to correct a signed addition?

Do not alter an executed document. Prepare a new amendment or corrective amendment and obtain signatures from all original parties to avoid disputes over authenticity.

Can I use remote notarization?

Remote online notarization is allowed in many states with identity proofing and recording; check the state's RON rules and record-retention requirements before relying on RON.

How long should I keep the executed agreement?

Retain executed additions for the contract term plus at least 3 years for tax purposes (IRC §6501(a)), with longer retention for construction and HIPAA-regulated records as applicable.

Electronic Signature
Templates
Miscellaneous
Project Additions Agreement

Project Additions Agreement

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Project Additions Agreement

This Project Additions Agreement ("Agreement") is made effective as of by and between Client Name: and Contractor Name: . This Agreement supplements and modifies the original contract referenced below and sets forth the parties' agreement regarding additions to the original scope of work.

Recitals

WHEREAS, Client and Contractor entered into an original agreement dated (the "Original Agreement") governing certain construction, renovation, or professional services on the project commonly known as: ;

WHEREAS, the parties wish to add to the Original Agreement additional tasks, materials, or services described herein (the "Additions") and to establish the compensation, schedule, and other terms applicable to such Additions; and

WHEREAS, the parties intend that this Agreement shall control to the extent of any conflict between this Agreement and the Original Agreement with respect to the Additions.

Scope of Work

Contractor shall perform the Additions described below in accordance with the terms of this Agreement and the Original Agreement, except as expressly modified herein.

Detailed description of Additions

Payment Terms

Client agrees to pay Contractor the additional compensation for the Additions as set forth below. All sums are payable in U.S. dollars unless otherwise specified.

Total additional compensation (lump sum or estimated total) Payment schedule / milestones

Invoices for completed milestones shall be due and payable within days of invoice receipt. Past due amounts shall accrue interest at the lesser of (a) an annual rate equivalent to % per month, compounded monthly, or (b) the maximum rate permitted by applicable law. In addition to interest, Client shall be responsible for collection costs, including reasonable attorneys' fees, incurred by Contractor in collecting any delinquent payments.

Term and Termination

The term for the Additions under this Agreement shall commence on and shall continue through , unless earlier terminated in accordance with this Agreement.

Either party may terminate this Agreement for convenience upon written notice to the other party delivered at least days prior to termination. Termination for cause may be exercised by either party upon written notice if the other party materially breaches this Agreement and fails to cure such breach within fifteen (15) days after receipt of written notice specifying the breach, except where a longer cure period is required by law or the Original Agreement.

Confidentiality

Each party acknowledges that, in connection with performance under this Agreement, it may receive or have access to Confidential Information of the other party. "Confidential Information" means non-public information disclosed in any form that is reasonably understood to be confidential given the nature of the information and the circumstances of disclosure. Each party shall hold Confidential Information in strict confidence and shall not disclose it to any third party except to its employees, agents, or subcontractors who have a need to know and who are bound by confidentiality obligations at least as protective as those in this Agreement.

The obligations set forth in this section shall remain in effect for a period of years following termination or expiration of this Agreement, except with respect to trade secrets, for which protection shall continue for so long as permitted by applicable law.

Changes and Change Orders

Any changes to the Scope of Work, schedule, or compensation shall be made only by written change order signed by authorized representatives of both parties. No oral statement or course of conduct shall modify this requirement.

Governing Law

This Agreement shall be governed by and construed in accordance with the laws of the State of , without regard to conflict-of-law principles that would result in the application of the laws of any other jurisdiction.

Indemnification

To the fullest extent permitted by law, each party shall indemnify, defend, and hold harmless the other party and its officers, directors, employees, agents, and representatives from and against any claims, liabilities, losses, damages, costs, and expenses (including reasonable attorneys' fees) arising out of or resulting from the indemnifying party's performance of its obligations under this Agreement, except to the extent such claims arise from the gross negligence or willful misconduct of the indemnified party.

Entire Agreement

This Agreement, together with the Original Agreement (as modified hereby) and any written change orders executed by the parties, constitutes the entire agreement between the parties with respect to the Additions and supersedes all prior and contemporaneous agreements, proposals, negotiations, and communications, whether written or oral, relating to the Additions. If there is any inconsistency between this Agreement and the Original Agreement with respect to the Additions, the terms of this Agreement shall control.

Execution

The parties have executed this Agreement by their duly authorized representatives as of the effective date set forth above.

Client

Client Printed Name:

By:

Date:

Contractor

Contractor Printed Name:

By:

Date:

What a Project Additions Agreement Is and When It Applies

A Project Additions Agreement is a written amendment to an existing contract that documents changes to scope, cost, schedule, or materials for a defined project. It creates a binding update to the original contract by listing added work, adjusted payment terms, revised completion dates, and any new responsibilities. Parties should use an additions agreement whenever the owner, contractor, or subcontractor agrees to extra tasks or variations that were not in the initial scope. The agreement reduces disputes by recording approvals, signatures, and any required supporting documents such as revised plans or change-order pricing.

Why a Clear Additions Agreement Matters

A well-drafted Project Additions Agreement preserves the original contract terms while adding definitional clarity, protecting payment expectations, and documenting acceptance of changes by all parties.

Who Typically Prepares and Signs This Agreement

Each signer should have authority to bind their organization and acknowledge revised schedule, cost, and warranty implications before executing the agreement.

General contractors who authorize extra work and need payment assurance within the project budget.
Property owners or developers seeking documented cost and schedule changes before work proceeds.
Project managers or architects who record approved specification or plan changes during construction.

Core Elements to Include in a Professional Additions Agreement

Include discrete sections that describe the added work, adjusted compensation, revised timeline, approvals, insurance and lien waivers, and a clear signature block to establish enforceability.

Scope

Precise description of added tasks, deliverables, materials, and references to revised plans or drawings, including technical specifications where applicable.

Pricing

Payment method and new amounts, whether lump-sum or unit pricing, invoicing schedule, retainage changes, and any allowances or contingencies.

Schedule

Revised milestone dates, completion deadline, and delay allowances tied to the additions, including any acceleration or extension terms.

Approvals

Identifies who approved the change, whether written acceptance from the owner or architect is required, and any conditional approvals.

Liens & Insurance

Statements on lien waiver requirements, bonds, insurance coverage for added work, and responsibility for permitting fees or inspections.

Signatures

Full signature block with printed name, title, date, and an indication of capacity to bind the party; state choice of law if needed.

Step-by-Step: How to Complete a Project Additions Agreement

Follow a simple sequence to draft, approve, and execute an additions agreement with minimal administrative friction.

01

Draft: Describe added work and attach supporting documents.
02

Price: Calculate added cost and payment milestones.
03

Review: Circulate to stakeholders and obtain written approvals.
04

Execute: Collect signatures and distribute fully executed copies.

How to Configure an Online Workflow for Additions Agreements

Set up a repeatable digital workflow that preserves the audit trail and routes the agreement to the right approvers.

Field	Configuration
Signer Order	Sequential or parallel routing to ensure approvals occur in proper order
Required Fields	Mark scope, price, and date fields as mandatory to prevent incomplete submissions
Authentication	Use email link or SMS code; add KBA for higher-assurance signers
Retention	Store executed PDF with audit trail and version history

Where and How to Send the Completed Agreement

Use consistent routing so signatures are collected, copies are distributed, and the project file is updated without delay.

Owner: Send executed copy to owner for records and payment processing.
Contractor: Provide contractor copy to update schedules and procurement.
Subcontractor: Notify impacted subs with revised scope and payment terms.
Project File: Archive executed agreement in the contract administration folder.

Digital Signing and File Sharing: Platform Essentials

Ensure the chosen service complies with ESIGN/UETA and supports retention of an auditable certificate of completion for dispute defense.

Formats Supported: PDF, DOCX, and fillable forms
Integrations: NetSuite, Salesforce, Procore integrations
Authentication: Email, SMS, or advanced auth

Typical Deadlines and Response Windows for Additions

Establish clear timing for pricing responses, approvals, and execution to avoid delays and potential claims.

Pricing Response Window:

Contractor provides cost estimate within 7–14 calendar days unless contract specifies otherwise

Owner Approval Period:

Owner approves or objects within 7–21 days based on contract terms

Execution Deadline:

All parties sign before work begins or compensation entitlement may be affected

Invoice Timing:

Submit change-order invoices per monthly billing cycle or as agreed

Dispute Notice:

Provide written notice of disagreement within 14–30 days to preserve claims

Key Milestones from Request to Execution

A sequential milestone view helps teams track the change-order lifecycle and maintain accountability for each stage.

01

Request Submitted

Owner or contractor documents change request with scope and reason.

02

Estimate Prepared

Contractor produces price and schedule impact for review.

03

Approvals Obtained

Relevant parties sign to authorize the added work.

04

Work Executed

Perform and invoice added work according to the revised agreement.

Common Mistakes to Avoid When Preparing an Additions Agreement

Using vague language for the added scope, which creates disputes over what was intended and who is responsible.
Failing to update schedule impacts, leading to overlapping tasks and claims for delay or acceleration costs.
Omitting lien waiver or payment mechanics, which complicates payment release and subcontractor claims.
Allowing oral approval without a signed amendment, increasing the risk that the change will be denied later.

Consequences of an Incorrect or Incomplete Additions Agreement

Payment Delay: Invoice disputes and withheld funds

Scope Disputes: Differing expectations on deliverables

Lien Exposure: Subcontractor liens from unpaid additions

Schedule Claims: Disagreements over delay and costs

Contract Termination: Material breaches can risk termination

Legal Costs: Increased dispute resolution expenses

Required Data Elements to Capture in the Agreement

Project Name: Exact contract title

Change ID: Unique change-order number

Scope Summary: Concise added work description

Adjusted Price: New compensation amount

Effective Date: MM/DD/YYYY format

Signatory Info: Name, title, and date

Real-World Examples of Additions Agreements in Practice

These short examples show how organizations document additions and integrate digital signing into their workflows.

Martin Properties

A regional developer required rapid approval of a scope change for exterior finishes

Added work price and schedule were negotiated in three business days
The executed amendment was stored digitally and linked to the original contract to prevent payment disputes and update subcontractor directives.

Xerox (NetSuite Integration)

A large enterprise used integrated systems to generate a change order tied to procurement records

The amendment updated cost codes and release quantities
Automatic sync with their ERP ensured accurate invoicing and avoided duplicated payments across departments.

eSignature Vendor Comparison for Executing Project Additions

Compare core pricing and distribution features; signNow is listed first. Confirm plan details with each vendor before committing.

	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	Yes	Yes	Yes	No
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

Common Questions About Project Additions Agreements and Execution

Answers to frequent concerns about signature validity, notarization, amendments, and recordkeeping for change orders.

Need help? Contact support

Is an e-signature legally binding?
Yes, electronic signatures are legally binding under the federal ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted, provided the parties demonstrate intent, consent to electronic records, attribution, and reliable record retention.
When is notarization required?
Notarization depends on state law and the nature of the document; certain documents (deeds, affidavits) often require notary acknowledgment—verify specific state requirements with the state notary office.
Who can sign for a company?
Authorized signers are those with delegated authority (officers, agents with written authorization); capturing signatory title and capacity in the signature block helps prove authority.
How to correct a signed addition?
Do not alter an executed document. Prepare a new amendment or corrective amendment and obtain signatures from all original parties to avoid disputes over authenticity.
Can I use remote notarization?
Remote online notarization is allowed in many states with identity proofing and recording; check the state's RON rules and record-retention requirements before relying on RON.
How long should I keep the executed agreement?
Retain executed additions for the contract term plus at least 3 years for tax purposes (IRC §6501(a)), with longer retention for construction and HIPAA-regulated records as applicable.

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