Can this agreement be signed electronically?

Yes. Electronic signatures are legally enforceable under the ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted. Ensure intent, consent, attribution, and reliable record retention to satisfy legal validity.

When is notarization required?

Most fee agreements do not legally require notarization, but state or specific contract contexts may. Use notarization when a higher evidentiary standard is desired or a counterparty requests it.

What if the payer disputes the fee?

Follow the agreement’s dispute procedures, preserve communications, and consider mediation or small claims court if internal resolution fails. Timely notice and documentation strengthen the enforcing party’s position.

How do I amend the agreement after signing?

Execute a written amendment signed by authorized parties. Electronic amendments follow the same ESIGN/UETA rules as original signatures; document the effective date of the change.

Where should executed agreements be stored?

Store signed copies in a secure, access‑controlled repository with backups and an audit trail. Retain records according to applicable retention schedules and legal requirements.

Is an eSignature platform acceptable for healthcare-related fees?

Yes, provided the vendor supports HIPAA compliance and a Business Associate Agreement (BAA) is in place for any PHI handling as required by 45 CFR §164.502(e).

Electronic Signature
Templates
Miscellaneous
Additional Fee Agreement

Additional Fee Agreement

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

ADDITIONAL FEE AGREEMENT

This Additional Fee Agreement ("Agreement") is made effective as of by and between:

Client Name Service Provider Name Client Address Service Provider Address

RECITALS

WHEREAS, Client and Service Provider entered into a separate agreement titled dated (the "Existing Agreement"); and

WHEREAS, the parties desire to amend the Existing Agreement to provide for an additional fee for services or costs not contemplated by the Existing Agreement; and

WHEREAS, the parties desire to set forth the terms and conditions governing the imposition, payment and enforcement of such additional fee.

SCOPE OF WORK

The additional fee shall be applied in connection with the following services, deliverables or circumstances. The description below identifies the scope to which the additional fee applies.

Describe scope subject to additional fee

PAYMENT TERMS

Additional Fee Amount: $

Payment schedule and milestones

Method of Payment:

Late Fee: If any payment due under this Agreement is not received by Service Provider within days after the due date, Client shall pay a late fee equal to on the outstanding balance, plus all reasonable costs of collection, including attorneys' fees.

TERM AND TERMINATION

This Agreement shall commence on and shall continue in effect until unless earlier terminated in accordance with this Agreement.

Either party may terminate this Agreement for convenience upon providing written notice to the other party at least days prior to the effective date of termination. Termination shall not relieve Client of its obligation to pay any Fees accrued prior to the effective date of termination.

CONFIDENTIALITY

Each party (the "Receiving Party") shall hold in confidence and not disclose to any third party any non-public, confidential or proprietary information of the other party (the "Disclosing Party") disclosed in connection with this Agreement. Confidential information does not include information that: (a) is or becomes publicly available through no breach of this Agreement; (b) was rightfully known to the Receiving Party prior to disclosure; (c) is independently developed by the Receiving Party without use of the Disclosing Party's confidential information; or (d) is required to be disclosed by law, provided the Disclosing Party is given prompt written notice and an opportunity to seek protective measures.

The Receiving Party shall use the same degree of care to protect the Disclosing Party's confidential information as it uses to protect its own confidential information, but in no event less than a reasonable degree of care. Upon written request, all materials containing confidential information shall be returned or destroyed, and a written certification of destruction shall be provided.

GOVERNING LAW; DISPUTE RESOLUTION

This Agreement shall be governed by and construed in accordance with the laws of the State of without regard to its conflict of laws principles. Any dispute arising out of or relating to this Agreement shall be resolved as set forth in the Existing Agreement; if no dispute resolution procedure is specified there, the parties agree to submit to the exclusive jurisdiction of the state and federal courts located in the chosen state.

ENTIRE AGREEMENT

This Agreement, together with the Existing Agreement as modified hereby, constitutes the entire understanding and agreement between the parties with respect to the subject matter herein and supersedes all prior and contemporaneous agreements, representations and understandings, whether oral or written. No amendment or waiver of any provision of this Agreement shall be effective unless in writing and signed by both parties.

MISCELLANEOUS

If any provision of this Agreement is determined to be invalid, illegal or unenforceable by a court of competent jurisdiction, the remaining provisions shall remain in full force and effect. The headings in this Agreement are for convenience only and shall not affect its interpretation.

Additional terms or notes (optional)

Client Name:

By:

Date:

Service Provider Name:

By:

Date:

What an Additional Fee Agreement Is and When It Applies

An Additional Fee Agreement documents a supplemental charge that a party imposes beyond the primary contract price or service fee. It explains the fee amount or formula, the triggering event, the party responsible for payment, timing and method of payment, and any dispute or refund mechanics. Common uses include late fees, expedited service charges, change-order fees in construction, or administrative surcharges in professional services. The agreement creates a clear written record to reduce misunderstandings and supports enforceability whether executed on paper or electronically under applicable U.S. e‑signature laws.

Why a Clear Additional Fee Agreement Matters

A concise written agreement clarifies expectations, provides evidence in disputes, and supports timely collection. It reduces billing disputes and helps parties manage compliance with consumer disclosure and contract law.

Who Typically Prepares and Signs an Additional Fee Agreement

Organizations and individuals use additional fee agreements when services or contracts may give rise to extra charges that were not included in initial pricing.

Service providers and vendors who charge expedited processing or special handling fees for clients.
Property managers and landlords who apply late rent fees, administrative fees, or lease amendment charges.
Contractors and subcontractors adding change-order fees or project contingency charges.

Use the document whenever an extra charge must be documented separately from the core agreement to ensure transparency and enforceability.

Core Elements of a Professional Additional Fee Agreement

Include clear, enforceable terms that define the fee, payment mechanics, notice requirements, and remedies to avoid ambiguity.

Parties

Full legal names and contact details for each contracting party so identity and service of notices are unambiguous.

Fee Description

A precise dollar amount or formula, frequency if recurring, and whether the fee is fixed, capped, or adjustable.

Trigger Events

Specific circumstances that cause the fee to apply (late payment, scope change, expedited work) with dates or measurable conditions.

Payment Terms

Due date, accepted payment methods, late‑payment interest rate, and allocation of processing costs or taxes.

Dispute & Remedies

Notice and cure periods, dispute resolution mechanism, and consequences for nonpayment such as liens or service suspension.

Signatures

Execution blocks for authorized signatories plus date and role to show authority and effective date of the fee.

Step-by-Step: How to Complete and Execute the Agreement

Follow this sequence to prepare, review, and obtain valid signatures on an Additional Fee Agreement.

01

Prepare Draft: Draft fee, triggers, and payment terms in plain language.
02

Review Internally: Have legal or finance review for policy and tax treatment.
03

Deliver to Counterparty: Send the document with any required consumer disclosures.
04

Obtain Signatures: Collect signatures and record the execution date.

How to Customize and Complete the Agreement Online

Configure digital fields and routing when building the agreement in an eSignature platform.

Field	Configuration
Fee Amount Field	Set as required numeric with currency format.
Effective Date Field	Use date picker; format MM/DD/YYYY.
Signature Field	Assign to signer role; require date.
Conditional Trigger	Show additional fields when fee is selected.

Where to Send or File the Executed Agreement

After execution, route the final document to responsible parties and store a copy in your records system.

Client Copy: Send signed PDF to the payer for their records.
Accounting: Forward to accounts receivable for invoice updates.
Legal File: Archive a copy in contract management for disputes.
Secure Storage: Store in encrypted document repository.

Digital Signing, Compliance, and Platform Considerations

Use an eSignature platform that supports audit trails, required authentication, and secure storage when executing fee agreements electronically.

Authentication: Email, SMS, or stronger methods.
Audit Trail: IP, timestamp, and action log.
File Formats: PDF, DOCX, and stored PDF/A.

Ensure the selected platform can produce a certificate of completion and meets any sector-specific compliance needs such as HIPAA where applicable; verify business associate agreements before using for protected health information.

Typical Timelines and Processing Expectations

Key timing points help parties know when fees apply, when notices must be sent, and when payment is due.

Notice Period:

Specify how many days before a fee applies (commonly 10–30 days).

Payment Due Date:

State the due date after notice (e.g., due within 14 days).

Grace Period:

Optional window before late fees begin (often 5–10 days).

Billing Cycle:

Align recurring fees with invoice schedule.

Dispute Window:

Require dispute notice within a defined time (commonly 30 days).

Common Mistakes to Avoid When Preparing an Additional Fee Agreement

Using vague language for fee triggers, which invites disputes and makes enforcement difficult.
Failing to identify the authorized signer, leaving signature authority unclear and risking invalidation.
Omitting payment details such as currency, acceptable methods, or remittance instructions causing collection delays.
Not providing required consumer disclosures where federal law demands consent for electronic records.

Penalties and Legal Risks from an Incorrect Agreement

Contract Challenge: Void or unenforceable fee.

Regulatory Violation: Consumer protection fines.

Tax Consequences: Incorrect reporting or withholding.

Collection Costs: Added legal or recovery fees.

Reputational Harm: Loss of customer trust.

Data Risk: Privacy breach fines.

Comparing eSignature Providers for Executing Additional Fee Agreements

Platform choice affects cost, compliance, and available features. The table compares starting price and key capabilities across vendors, with signNow listed first.

	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	Yes, 7-day trial	No	No	Yes, limited	Yes, limited
Bulk Send	Yes	Yes	Yes	Yes	No
Audit Trail	Yes	Yes	Yes	Yes	Yes
HIPAA Compliant	Yes	Yes	Yes	No	No

Frequently Asked Questions About Additional Fee Agreements

Answers to common legal and practical questions about drafting, signing, and enforcing additional fee agreements.

Need help? Contact support

Can this agreement be signed electronically?
Yes. Electronic signatures are legally enforceable under the ESIGN Act (15 U.S.C. ch. 96) and UETA where adopted. Ensure intent, consent, attribution, and reliable record retention to satisfy legal validity.
When is notarization required?
Most fee agreements do not legally require notarization, but state or specific contract contexts may. Use notarization when a higher evidentiary standard is desired or a counterparty requests it.
What if the payer disputes the fee?
Follow the agreement’s dispute procedures, preserve communications, and consider mediation or small claims court if internal resolution fails. Timely notice and documentation strengthen the enforcing party’s position.
How do I amend the agreement after signing?
Execute a written amendment signed by authorized parties. Electronic amendments follow the same ESIGN/UETA rules as original signatures; document the effective date of the change.
Where should executed agreements be stored?
Store signed copies in a secure, access‑controlled repository with backups and an audit trail. Retain records according to applicable retention schedules and legal requirements.
Is an eSignature platform acceptable for healthcare-related fees?
Yes, provided the vendor supports HIPAA compliance and a Business Associate Agreement (BAA) is in place for any PHI handling as required by 45 CFR §164.502(e).

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