Can I eSign an addendum?

Yes. Electronic signatures are generally enforceable under the ESIGN Act (15 U.S.C. ch. 96, 2000) and UETA in most states. Ensure intent to sign, consent to electronic records, signer attribution, and reliable retention to meet the four-part legal validity test.

Is notarization required?

Not typically. Most referral addenda do not require notarization, though a notarized signature can strengthen evidentiary weight. Verify state-specific requirements for unique instruments or where a notary adds contractual validity.

Who handles 1099 reporting?

Parties should specify tax reporting responsibility in the addendum. If the recipient pays a third party, the paying party usually issues Form 1099-NEC and should collect a valid W-9 to avoid backup withholding.

What happens on termination?

Include survival clauses for referrals made before termination and specify whether earned but unpaid fees survive contract termination to prevent unintended forfeiture.

How to avoid disputes over qualification?

Use objective referral definitions with minimum deal size, client identifiers, and a documented acceptance process to trigger payments and reduce subjective disagreements.

Can healthcare referrals include patient data?

Only when strictly necessary and with HIPAA safeguards. Include a BAA when PHI is exchanged and limit data sharing to the minimum necessary per 45 CFR §164.502.

Electronic Signature
Templates
Miscellaneous
Referral Agreement Addendum

Referral Agreement Addendum

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

REFERRAL AGREEMENT ADDENDUM

This Referral Agreement Addendum (the Addendum) is entered into as of and supplements the Referral Agreement dated (the Original Agreement) between the parties set forth below.

Parties

Referrer Name: Referrer Address: Recipient Name: Recipient Address:

WHEREAS

WHEREAS, Referrer and Recipient entered into the Original Agreement to govern the referral of prospective clients and the payment of referral fees; and

WHEREAS, the parties desire to modify certain terms of the Original Agreement as set forth in this Addendum and to confirm that, except as expressly modified herein, the Original Agreement remains in full force and effect.

Scope of Work

The Referrer shall identify and introduce prospective clients to the Recipient consistent with the referral procedures in the Original Agreement. The specific scope of referrals covered by this Addendum is set forth below:

Scope of Referrals (describe in detail):

Payment Terms

In consideration for referrals that result in an executed agreement between Recipient and a referred client, Recipient shall pay Referrer the referral fee set forth below in accordance with the following terms.

Referral Fee Type (select applicable):

Percentage of transaction (enter percentage):

Flat fee per referral (enter amount):

Payment Schedule / Timing: Late Payment Fee:

Term and Termination

The term of this Addendum shall commence on and shall continue until , unless earlier terminated in accordance with this section.

Either party may terminate this Addendum without cause upon written notice delivered to the other party at least days prior to the effective date of termination. Termination shall not relieve Recipient of the obligation to pay referral fees for referrals made prior to termination that result in an agreement within the referral fee accrual period specified in the Original Agreement or this Addendum.

Confidentiality

Each party acknowledges that, in connection with the performance of this Addendum, it may receive Confidential Information of the other party. "Confidential Information" means non-public information that is designated as confidential or that reasonably should be understood to be confidential given the nature of the information and the circumstances of disclosure. Each party shall (a) hold such Confidential Information in confidence using at least the same degree of care it uses to protect its own confidential information, but in no event less than reasonable care; (b) use the Confidential Information only for the purposes of performing under this Addendum; and (c) not disclose the Confidential Information to any third party except as permitted by this Addendum.

The obligations set forth in this section shall survive termination of this Addendum for a period of unless a longer period is required by law.

Representations; Compliance

Each party represents and warrants that it has full power and authority to enter into this Addendum and that performance under this Addendum will not violate any applicable law or existing agreement. Referrer represents that it will comply with all applicable solicitation, data protection, and privacy laws in making referrals.

Amendment; Conflict

This Addendum amends and supplements the Original Agreement. To the extent of any conflict between the terms of the Original Agreement and this Addendum, the terms of this Addendum shall govern. Except as expressly modified by this Addendum, the Original Agreement remains in full force and effect.

Governing Law

This Addendum shall be governed by and construed in accordance with the laws of the State of without regard to its conflict of laws rules.

Indemnification

Each party shall indemnify, defend and hold harmless the other party from and against any losses, liabilities, damages, costs and expenses (including reasonable attorneys' fees) arising out of a breach of such party's representations, warranties or obligations under this Addendum, or from the negligence or willful misconduct of the indemnifying party in connection with its performance hereunder.

Entire Agreement

This Addendum, together with the Original Agreement, constitutes the entire agreement between the parties with respect to the subject matter hereof and supersedes all prior and contemporaneous agreements, understandings, negotiations and discussions, whether oral or written, relating to such subject matter.

Additional Terms or Notes (optional):

Signatures

Referrer Printed Name:

By:

Date:

Title/Capacity:

Recipient Printed Name:

By:

Date:

Title/Capacity:

What a Referral Agreement Addendum Is and When It Applies

A Referral Agreement Addendum is a written amendment to an existing services or sales agreement that documents referral arrangements: who refers, who receives referral fees or credits, the calculation method, timing of payments, and any eligibility conditions. It preserves the underlying contract while adding discrete terms for introductions or leads. Typical use includes adding a commission schedule, defining a referral period, clarifying tax reporting responsibility, and setting termination or amendment mechanics without redrafting the primary agreement.

Why Add an Addendum Instead of Replacing the Contract

Using an addendum lets parties document referral terms quickly while keeping the original contract intact, reducing negotiation scope and avoiding full agreement restatement. It provides targeted clarity on payment timing, confidentiality, and the referral scope.

Common Parties That Prepare or Use a Referral Addendum

Referral addenda are used by businesses, independent sales agents, channel partners, and professional services firms to record referral fee arrangements without rewriting core contracts.

Sales or business development teams negotiating partner introductions and commission terms.
Independent referral partners who need a written record of fee calculations and payment timing.
Legal or contracts teams that prefer narrow amendments over full contract revisions.

The addendum clarifies responsibilities for payments, tax reporting, confidentiality, and termination, reducing disputes and accelerating payment cycles.

Core Elements to Include in a Professional Referral Agreement Addendum

Include clear, narrowly scoped clauses to avoid ambiguity: identify parties, define the referral, specify fees and payment mechanics, set effective dates, and address termination and confidentiality.

Parties

Identify each contracting party by legal entity name, address, and role (referrer, recipient) to ensure enforceability and correct tax reporting.

Referral Definition

Define what qualifies as a referral, including lead source, minimum deal value, and any exclusions so payments trigger only for qualifying transactions.

Compensation

Specify fee type (fixed, percentage, tiered), calculation method, payment schedule, currency, and net-of deductions if applicable to avoid payment disputes.

Payment Timing

State payment timing (e.g., within 30 days after invoice collection) and conditions such as client acceptance or successful close that delay or trigger payment.

Tax and Reporting

Assign responsibility for issuing 1099-NEC or equivalent reporting and for providing W-9 information to avoid backup withholding or misreporting penalties.

Termination

Describe termination rights, survival of payment obligations for referrals made before termination, and any cure periods for material breaches.

Step-by-Step: How to Complete the Addendum

Follow this sequence to prepare a clear, enforceable addendum.

01

Draft: Populate parties, scope, and fee terms accurately.
02

Review: Have legal or finance confirm tax and payment clauses.
03

Sign: Collect authorized signatures and dates from all parties.
04

Distribute: Send fully executed copies to accounting and partner contacts.

How to Configure an Online Signing Workflow

Set up a digital workflow that matches the addendum's approval and signature order for a reliable eSigning process.

Field	Configuration
Signer Order	Sequential signing: referrer then recipient
Authentication	Email plus optional SMS or KBA for higher assurance
Conditional Fields	Show fee details only if referral type equals specified value
Notifications	Automatic reminders at 3, 7, and 14 days for pending signatures

Where to Send and How to Route the Executed Addendum

Route the signed addendum to parties and internal teams to trigger payments and recordkeeping.

Recipient Copy: Send a PDF to each signer immediately after execution
Accounts Payable: Forward to AP to schedule referral payment and tax reporting
Contract Repository: Archive in a central contract management system
Partner Manager: Notify partner administration to track referral credits

Digital Signing and File Format Requirements

Use a platform that supports secure eSignatures, audit trails, and export to PDF/A for reliable records.

File Formats: PDF, DOCX accepted
Integrations: Works with CRM and cloud storage
Authentication: Email, SMS, or advanced methods

Key Timelines and Deadlines to Track

Monitor effective dates, payment windows, reporting cycles, and amendment notice periods to avoid missed obligations.

Effective Date:

Defines when referral rights and duties start

Payment Window:

Commonly net 30 to net 60 after qualifying event or invoice

Tax Reporting:

1099-NEC to recipients and IRS by Jan 31 each year

Amendment Notice:

Provide 30 days notice for proposed addendum changes

Record Retention:

Keep records per retention rules below

Common Mistakes to Avoid When Preparing an Addendum

Vague referral definitions that allow competing interpretations and delayed or disputed payments.
Leaving tax responsibilities unspecified, which can trigger backup withholding or incorrect 1099 reporting.
Failing to confirm signer authority, leading to unenforceable commitments and internal disputes.
Not specifying payment triggers or proof of closing, creating ambiguity about when fees become payable.

Penalties and Risks from Incomplete or Incorrect Addenda

Tax Penalties: Failing to issue correct 1099s can trigger IRC §6721 penalties

Payment Disputes: Undefined triggers lead to breach claims and collection costs

Back Withholding: Missing TINs may cause 24% backup withholding

Authority Challenges: Signatures by unauthorized signers risk unenforceability

Privacy Risk: Sharing health data without HIPAA controls can be unlawful

Contractual Gaps: Omitted survival clauses can cut off owed post-termination payments

eSignature Vendor Comparison for Signing and Storing Addenda

Comparison of entry-level pricing and basic feature availability across common eSignature vendors. signNow is listed first per platform naming requirements.

	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
Envelope Cap	No cap	100 envelopes/user/year	Varies by plan	Varies by plan	Varies by plan

Real-World Examples of Using a Referral Addendum

Two concise examples show how organizations use addenda to capture referral terms without redoing main agreements.

Optica Ventures — COO

Optica used an addendum to document partner compensation for introductions and speed onboarding.

The addendum set clear payment triggers tied to client acceptance.
The team reported smoother partner relationships and faster execution because everyone had a concise, signed record of fee formulas and payment timing.

Martin Properties — Founder

Martin Properties added a referral addendum for broker introductions on specific property types.

The addendum specified capped fees and defined excluded listings.
This limited ambiguity in payouts, reduced commission disputes at closing, and simplified internal accounting for referral credits.

Who Typically Signs the Addendum

Referral Partner

An individual or entity that introduces prospective clients. The referral partner should be identified by legal name, with a designated contact and W-9 provided if tax reporting is required.

Authorized Signatory

A person with authority to bind the recipient company, typically a director or officer. Confirm corporate authority and title to avoid later challenges to enforceability.

Frequently Asked Questions About Referral Agreement Addenda

Answers to common questions about validity, signatures, tax treatment, and best practices for drafting and execution.

Need help? Contact support

Can I eSign an addendum?
Yes. Electronic signatures are generally enforceable under the ESIGN Act (15 U.S.C. ch. 96, 2000) and UETA in most states. Ensure intent to sign, consent to electronic records, signer attribution, and reliable retention to meet the four-part legal validity test.
Is notarization required?
Not typically. Most referral addenda do not require notarization, though a notarized signature can strengthen evidentiary weight. Verify state-specific requirements for unique instruments or where a notary adds contractual validity.
Who handles 1099 reporting?
Parties should specify tax reporting responsibility in the addendum. If the recipient pays a third party, the paying party usually issues Form 1099-NEC and should collect a valid W-9 to avoid backup withholding.
What happens on termination?
Include survival clauses for referrals made before termination and specify whether earned but unpaid fees survive contract termination to prevent unintended forfeiture.
How to avoid disputes over qualification?
Use objective referral definitions with minimum deal size, client identifiers, and a documented acceptance process to trigger payments and reduce subjective disagreements.
Can healthcare referrals include patient data?
Only when strictly necessary and with HIPAA safeguards. Include a BAA when PHI is exchanged and limit data sharing to the minimum necessary per 45 CFR §164.502.

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