Cost Plus Construction Contract Form
Use a Cost Plus Construction Contract Template template to make your document workflow more streamlined.
What a cost plus construction contract does
A Cost Plus Construction Contract Form sets the owner’s obligation to reimburse defined project costs and the contractor’s compensation, rather than fixing one total construction price. The agreement should identify allowable costs, fee or markup, payment documentation, budget controls, change-order procedures, schedules, and each party’s signature. Owners and contractors use it to connect invoices and project records to agreed terms. An electronic version can be signed under ESIGN and applicable state law when intent, consent, attribution, and record retention are established.
When the contract is legally usable
A cost plus construction contract may be admissible when the parties show intent, consent, attribution, and reliable record retention under ESIGN and applicable state law. Electronic execution does not cover wills, codicils, testamentary trusts, court orders, official court filings, or other statutory exclusions.
Documents and audiences covered
Construction agreements
Use the form for owner–contractor agreements covering reimbursable labor, materials, subcontractor costs, fee calculations, allowances, payment terms, and approved change orders.
Project participants
Owners, contractors, construction managers, architects, and accounting teams can review and sign the agreement remotely while preserving the executed record.
Business types that use cost plus contracts
The form supports construction engagements where reimbursable costs, contractor compensation, and approval responsibilities must be documented before work proceeds.
Solo construction consultants can send a defined scope, fee arrangement, and reimbursable-cost schedule without coordinating an office meeting for every signature. Regional general contractors can route owner, contractor, architect, and accounting approvals in sequence while preserving the signed contract and change-order history. Enterprise developers can standardize cost plus templates, connect records to project systems, and control access across multiple construction projects and subsidiaries.
These tasks are executed by both individual contributors and centralized administrators depending on organizational policy and required controls.
Features that fit cost plus agreements
A cost plus construction contract needs clear cost approvals, signer accountability, and accessible records for the owner, contractor, and project accounting team.
Contract upload
Upload the cost plus agreement and preserve its clauses, exhibits, allowances, and reimbursement terms in one signable document.
Role assignment
Assign owner, contractor, architect, and accounting fields so each participant signs or reviews the correct part of the agreement.
Cost approvals
Capture approval for cost categories, fee percentages, allowances, and change orders before the contract becomes effective.
Audit trail
Keep the executed contract connected to timestamps, signer actions, and the completion record for later project review.
Mobile signing
Use mobile signing when project participants review bids, contracts, or amendments from a construction site or office.
Document integrations
Connect project documents with Procore, Box, Google Drive, or Egnyte for controlled storage and retrieval.
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Complete the contract in signNow
Use this workflow to prepare the cost plus agreement, assign signing responsibilities, and preserve evidence of execution.
Upload:
Upload the contract PDF Detect fields:
Let signNow detect fillable fields Review:
Review costs, exhibits, and signer roles Send:
Send the agreement for signature Store:
Store the signed contract and audit trail
Recommended contract workflow setup
Configure the agreement around clear signer identity, cost documentation, controlled access, and a reproducible execution record.
| Setting | Recommendation |
|---|---|
| Authentication method | Email link with SMS OTP |
| Signature type | Electronic signature with signer intent |
| Audit trail | Enabled with export after completion |
| Document retention | Three years from filing under IRC §6501(a) |
| Encryption | TLS 1.2/1.3 and AES-256 |
How the contract audit trail works
The audit trail records signer identity, document events, and evidence supporting the executed cost plus construction contract.
Authenticate signer:
Capture timestamp:
Hash document:
Seal record:
Log activity:
Export trail:
Signer authentication for contract execution
PKI support:
X.509 certificates:
Two-factor authentication:
SMS OTP:
ID verification:
Signing evidence:
Platform requirements for signing
Prepare and sign the Cost Plus Construction Contract Form through Chrome, Firefox, Safari, or Edge on Windows or macOS. signNow also provides mobile apps for iOS and Android, allowing project participants to review and sign contract pages away from the office.
Browsers Chrome, Firefox, Safari, Edge Operating systems Windows, macOS, iOS, Android Devices Desktop and mobile signing
Construction organizations should use managed devices, controlled user access, and appropriate storage permissions for contract exhibits and cost records. Teams using API or enterprise workflows should confirm their signNow plan supports the required integration, SSO provisioning, and retention configuration before deployment.
Retention and record-keeping practices
Preserve the executed contract with its cost records, amendments, and signing evidence, while applying the retention rule connected to each underlying record.
Apply the retention rule matching the record
Export the audit trail after completion
Archive the executed agreement securely
Check state and project requirements
Pricing and features for contract workflows
signNow pricing and verified plan details appear first; competitor figures are marked Not verified when the available source does not confirm them.
| Features | signNow | DocuSign | Adobe Sign | PandaDoc | Dropbox Sign |
|---|---|---|---|---|---|
| Starting price | $8/user/month, Business, billed annually | Not verified | Not verified | Not verified | Not verified |
| Free trial | 7 days, no credit card required | Not verified | Not verified | Not verified | Not verified |
| Bulk send | Business Premium includes bulk send | Not verified | Not verified | Not verified | Not verified |
| Audit trail | Included with Business plan | Not verified | Not verified | Not verified | Not verified |
| HIPAA compliance | Available; BAA required | Not verified | Not verified | Not verified | Not verified |
| Annual invite allowance | 100 signature invites per user annually | Not verified | Not verified | Not verified | Not verified |
Troubleshooting contract signing issues
These answers address field detection, plan limits, electronic enforceability, audit evidence, and compliance questions specific to cost plus construction agreements.
Upload the original contract PDF again, then review the detected fields before sending. signNow supports templates and fillable fields, but the sender remains responsible for confirming every cost, fee, exhibit, and signer field matches the negotiated agreement.
Business includes legally binding eSignatures, templates, audit trails, and mobile apps at $8/user/month when billed annually. It includes 100 signature invites per user annually; additional invite pricing may apply under the subscription plan.
Use Business Premium when the same cost plus contract must be sent to multiple recipients or projects. The verified plan details state that Business Premium costs $15/user/month annually and includes bulk send, while Business pricing does not list bulk send.
ESIGN and UETA generally recognize electronic signatures when intent, consent, attribution, and record retention are established. For consumer-facing records, obtain the required ESIGN disclosure and confirm state construction-law requirements before relying on electronic execution.
A signed PDF and audit trail document who acted, when, and through which signing event. Export both records, restrict later edits, and keep amendments as separately executed change orders rather than overwriting the original contract.
If the project involves PHI, signNow states HIPAA compliance requires a business associate agreement. A construction contract normally does not create a HIPAA workflow, so use HIPAA controls only when the document actually handles protected health information.
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