Establishing secure connection…Loading editor…Preparing document…

Project Management Additional Hours Draft

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

Project Management Additional Hours Draft

Project Identification

Project ID:    Project Title:

Scope of Additional Work

This Additional Hours Draft documents the requested and proposed additional resources, time and associated costs necessary to perform the items described below. The additional hours constitute a change to the Statement of Work and will be authorized only upon execution of this document by both parties.

Deliverables and Acceptance

Timeline & Milestones

Proposed period for additional work: Start Date — End Date .

Due Date:

Due Date:

Due Date:

Budget & Payment

Estimated additional hours:    Hourly rate:    Estimated additional cost:

Authorization required prior to commencement of additional work: I acknowledge that no additional hours will be billed or performed unless this draft is executed by authorized representatives of both parties.

Change Order & Variation Control

This document amends the existing contract Statement of Work only as to the specific additional hours and associated deliverables identified herein. All other terms of the underlying agreement remain in full force. Any further changes, including additional hours beyond those set forth, shall be governed by the change order process specified in the master agreement and require written approval signed by both parties before work begins.

Confidentiality

The parties acknowledge that any information exchanged in connection with the additional work remains subject to the confidentiality provisions of the underlying agreement. Each party shall continue to safeguard Confidential Information and shall use such information solely for the performance and administration of the additional work described in this document.

Liability, Indemnity & Governing Law

Except as expressly modified herein, all limitations of liability, indemnities and warranties set forth in the underlying agreement shall apply to the additional work. The parties agree that this Additional Hours Draft shall be governed by the laws of the jurisdiction specified below.

Dispute Resolution

The parties agree to attempt in good faith to resolve any dispute arising out of this Additional Hours Draft through escalation to senior representatives. If unresolved, disputes shall be resolved in accordance with the dispute resolution clause of the master agreement or, if none is applicable, through binding arbitration in the chosen governing jurisdiction unless mutually agreed otherwise in writing.

By signing below, the authorized representatives of both parties agree that this Additional Hours Draft modifies the scope, schedule and fees as specified herein and that billing shall proceed in accordance with the Payment Schedule above upon execution. Execution of this document constitutes written authorization for the service provider to proceed with the additional hours.

Client Printed Name:

By:

Date:

Service Provider Printed Name:

By:

Date:

Enter text✕
Prepare your document for signing right on this page
  • 01 Edit the text and complete the fields
  • 02 Click Sign Now and on the next screen add recipients and signature fields in SignNow
  • 03 Start your free trial to sign and send your doc
Sign Now

What the Project Management Additional Hours Draft Covers

The Project Management Additional Hours Draft is an addendum used to document, authorize, and bill for extra hours beyond the original project scope. It clarifies additional tasks, hourly rates or fee caps, estimated hours, authorization date, revised timelines, and acceptance criteria. The draft should identify the approving parties, state whether work is time-and-materials or fixed-fee, and include billing and invoicing instructions. When executed electronically, the addendum must meet ESIGN and UETA standards for intent, consent, attribution, and retention to support enforceability.

Why a Formal Additional Hours Draft Matters

Documenting additional hours reduces disputes, aligns expectations, and creates a clear record for invoicing and audits. A written addendum protects both parties by specifying rates, limits, approval workflows, and timing for payment and delivery.

Why a Formal Additional Hours Draft Matters

Who Typically Prepares and Signs This Addendum

The document is usually prepared by the project manager or account manager and reviewed by client stakeholders before signature.

  • Project managers and delivery leads responsible for scope and time estimates.
  • Client purchasing or account contacts who approve budget changes and billing.
  • Finance or contract administrators who review rates and update invoicing systems.

Execution methods vary by organization — some use internal approvals plus client signature, others route via contract administrators or procurement teams.

Key Signatory Roles

Project Manager

Typically the internal author of the addendum. Provides the additional hours estimate, task breakdown, and justification. Responsible for confirming deliverables, tracking time, and notifying finance to process revised invoices. May be required to certify work performed during the additional hours period.

Client Authorized Representative

An individual with contracting authority on the client side (procurement, account owner, or executive). Reviews scope and budget impact, approves the addendum, and signs to authorize work. Their signature establishes client acceptance for billing and any schedule changes.

Essential Elements to Include in the Additional Hours Draft

A professional addendum contains defined scope, pricing, authorization, timing, responsibilities, and signature blocks. Each element reduces ambiguity and provides a legal record for performance and payment.

Scope Description

Concise list of tasks or deliverables added to the original agreement, with references to original contract sections where applicable to avoid overlap or contradiction.

Hours and Rate

Specify estimated additional hours, hourly rate or blended rate, and any caps or not-to-exceed amounts to control exposure and billing expectations.

Authorization

Name and title of the approver, method of approval (digital signature, email confirmation), and an approval deadline if time-limited authorizations apply.

Schedule Impact

State how the additional hours change milestones or delivery dates, including any dependencies and revised acceptance criteria.

Billing Instructions

Define invoice timing, supporting time logs required, payment terms, and whether expenses are reimbursable with required receipts.

Signature Blocks

Designated signer names, titles, signature lines, dates, and any witness or notary fields if the parties require notarization for corporate policies.

Step-by-Step: Prepare, Approve, and Execute the Addendum

Follow these sequential steps to minimize disputes and ensure proper authorization before work proceeds.

  • 01
    Draft Addendum: Describe added work, estimate hours, and set rates and caps.
  • 02
    Internal Review: Obtain project team and finance review for accuracy and budget impact.
  • 03
    Client Approval: Send to authorized client representative for signature and record consent.
  • 04
    Distribute Copies: Provide signed copies to project, finance, and procurement teams.

Suggested Online Workflow Configuration

Configure a digital workflow to collect approvals, capture timestamps, and route signed copies to relevant systems.

Field Configuration
Signature Field Set required signer roles and enforce date stamps
Conditional Approval Show budget increase field only if hours exceed threshold
Routing Route final signed PDF to finance and project folders
Audit Trail Enable full audit trail capture for each signature event

Digital Signing and System Compatibility

Verify that e-signature and storage processes meet your legal and retention requirements, and confirm any required BAAs or compliance addenda with vendors.

  • Supported Formats: PDF and DOCX standard
  • Authentication Options: Email, SMS code, or stronger MFA
  • Integrations: CRM and accounting integrations available

Where to Send or File the Signed Addendum

After execution, route the signed addendum to systems and contacts that use it operationally and for audit purposes.

  • Project Repository: Store signed addendum in the project management folder for execution reference.
  • Client Records: Send signed copy to client contact for their records and accounts payable.
  • Finance System: Upload invoice-related details into ERP or accounting software.
  • Contract Registry: Log amendment in central contract database for reporting.

Typical Timing and Deadline Expectations

Common date fields and deadlines in an additional hours draft help avoid scope creep and billing disputes.

Approval Deadline:

Date by which client must accept or reject additional hours.

Effective Date:

Date when additional work and billing begin (MM/DD/YYYY).

Monthly Invoicing Date:

Specify invoice cycle for additional hours billing.

Dispute Notification Window:

Period to raise disputes after invoice receipt.

Retention Start:

Date that begins record retention and audit timelines.

Security and Compliance Features to Require

Encryption: TLS 1.2/1.3 in transit; AES-256 at rest
Audit Trail: Detailed timestamps, IP addresses, and action logs
Access Controls: Role-based access and permissions
Authentication: Email, SMS code, or multi-factor authentication
Compliance: ESIGN, UETA, SOC 2, ISO 27001
HIPAA BAA: Business Associate Agreement where PHI is involved

Consequences of an Incorrect or Incomplete Addendum

Billing Disputes: Delayed payment or withheld invoices
Scope Creep: Unclear deliverables cause extra unapproved work
unenforceable Signature: Missing intent or consent undermines enforcement
Tax Implications: Incorrect invoices affect reporting and withholding
Compliance Breach: Improper handling of PHI may breach HIPAA
Contractual Liability: Ambiguity may lead to penalties or litigation

Common Preparation Mistakes to Avoid

  • Leaving the scope vague so tasks and deliverables are unclear, which often leads to disagreements about what hours were necessary.
  • Failing to set a not-to-exceed cap or an hourly rate, exposing the client or vendor to uncontrolled cost increases.
  • Omitting the effective date or using inconsistent date formats, which can create disputes over when billing should begin.
  • Not capturing an approver with proper authority, resulting in contested approvals and delayed payments.

Practical Tips for Accurate and Efficient Completion

Adopt consistent templates and digital workflows to reduce errors and speed approvals while preserving auditability.

Define exact tasks and deliverables
Provide a clear task list and acceptance criteria so time billed is easily matched to deliverables during client review and invoice reconciliation.
Set a not-to-exceed or cap amount
Limit exposure by specifying a maximum payable amount; require written approval before exceeding the cap to prevent surprises.
Require time logs and supporting detail
Attach timesheets or activity logs to invoices so the client can validate hours and speed payment cycles.
Use standardized digital signatures and audit trails
Capture signer identity, timestamp, and method of authentication to support enforceability under ESIGN and UETA.

eSignature Platform Comparison for Executing the Addendum

Comparison of common eSignature providers and features relevant to signing contract addenda. 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, no credit card required Check vendor for trial terms Check vendor for trial terms Check vendor for trial terms Check vendor for trial terms
Bulk Send Yes (Business Premium) Yes Yes Yes No
Audit Trail Yes Yes Yes Yes Yes
HIPAA Compliant Yes Yes Yes No No

Practical Examples of When to Use an Additional Hours Draft

Two short scenarios illustrate common triggers and outcomes for an additional hours addendum.

Example 1

A software project encounters unexpected integration complexity that requires more QA cycles.

  • The PM estimates 80 extra hours at a defined rate.
  • The addendum sets the rate, cap, revised milestone dates, and requires client sign-off before the additional work proceeds to ensure aligned expectations and timely billing.

Example 2

A facilities management contract needs weekend labor to meet a hard deadline.

  • Vendor proposes 40 weekend hours with overtime billing.
  • The addendum documents overtime multipliers, approval from the client’s operations lead, invoicing cadence, and a not-to-exceed limit to keep costs predictable.

Frequently Asked Questions and Troubleshooting

Answers to common questions about validity, signatures, notarization, and handling changes after execution.


Need help? Contact support

be ready to get more
Join over 28 million airSlate SignNow users
Sign Now
Company
Forms
Pricing
Resources
Knowledge base
Other Products
© 2026 airSlate Inc. All rights reserved.