What is a fair referral fee percentage?

Referral fees commonly range from 5% to 25% of the resulting revenue, depending on the industry and how much work the referrer does. Professional services often pay 10%–15% of the first invoice or first year of revenue. High-ticket B2B deals may pay a flat fee instead. Real estate referral fees are typically 25% of the commission but are regulated and can only be paid to licensed agents. The right number balances what the introduction is worth against your margins.

Is a referral fee the same as a commission?

No. A referral fee is a one-time (or capped) payment for introducing a customer: the referrer does not sell, negotiate, or manage the relationship. A commission is ongoing compensation paid to someone actively involved in closing and servicing sales, like a sales rep. Because the roles differ, they use different contracts: a referral agreement for introductions and a sales commission agreement for active selling.

When should the referral fee be paid?

Tie payment to a concrete trigger, not just the introduction. The most common structure pays the fee after the referred customer signs a contract and pays their first invoice. This protects you from paying on deals that fall through. Specify the number of days after the trigger (commonly 30 days) and whether the fee is paid once or recurs on renewals.

Are referral fees legal?

Yes, in most industries referral fees are legal and common. But several regulated professions restrict them: real estate referral fees can usually only be paid between licensed agents, and law, medicine, and financial services have strict rules or outright bans on paying for referrals. Always confirm your industry allows referral compensation before signing an agreement.

Does a referral agreement need to be in writing?

It should be. Verbal referral arrangements are the single biggest source of fee disputes: the parties remember the percentage, the trigger, or the term differently once real money is involved. A short written agreement that defines a qualified referral, the fee, and the payment trigger prevents almost all of these arguments and takes minutes to produce.

Referral Agreement Template: How to Write One

Learn to write a referral agreement that holds up. Covers referral fee percentages, what counts as a qualified referral, payment terms, and common mistakes.

A referral agreement turns a handshake favor into a predictable revenue channel. When a partner, past client, or industry contact sends business your way, a written agreement makes clear what they get paid, what counts as a qualifying referral, and when the money changes hands. Without one, the most reliable source of new business, word of mouth, becomes the most common source of awkward fee disputes.

This guide explains what a referral agreement is, how to set the fee, every clause it should contain, and the mistakes that turn a simple introduction into an argument.

What Is a Referral Agreement?

A referral agreement is a contract between a business (the recipient) and a person or company (the referrer) who agrees to send potential customers to the business in exchange for a fee. The referrer makes an introduction; the recipient does the selling, the work, and the customer service. If the introduction turns into paying business, the referrer earns a referral fee.

That division of labor is the whole point. The referrer is not an employee, a sales rep, or a partner. They are not authorized to negotiate prices, make promises, or represent the business. They simply open a door, and get paid if someone walks through it and buys.

Referral agreements go by a few names: referral fee agreement, finder's fee agreement, or introducer agreement. They all do the same job: convert informal word-of-mouth into a documented, enforceable arrangement.

Referral Agreement vs. Affiliate, Commission, and Vendor Agreements

These contracts overlap in spirit but differ in mechanics, and using the wrong one creates confusion.

A referral agreement covers one-off, relationship-driven introductions, usually B2B, often higher-value, and typically paid as a one-time fee. The referrer is a trusted contact, not a marketer.
An affiliate agreement covers high-volume, link-tracked promotion, where an affiliate markets to an audience and earns a percentage on tracked sales through cookies and unique URLs.
A sales commission agreement compensates someone who actively sells (negotiating, demoing, and closing), usually with ongoing commissions rather than a single fee.
A vendor agreement governs a supplier who provides goods or services, which is a different relationship entirely.

If your referrer just makes an introduction and steps away, a referral agreement is the right document. If they keep selling or managing the account, you probably need a commission structure instead.

How Much Is a Referral Fee?

There is no universal number, but there are clear norms. The fee should reflect how much effort the referral takes and how much the resulting business is worth.

Percentage of revenue. The most common structure. Typical ranges:

Professional and B2B services: 10%–15% of the first invoice, the first project, or the first year of revenue.
Software and subscriptions: 10%–20% of first-year contract value, sometimes recurring at a lower rate on renewals.
High-volume, low-margin products: 5%–10%, because thin margins can't support more.
Real estate: commonly 25% of the agent's commission, but legally restricted to licensed agents only.

Flat fee. A fixed dollar amount per qualified referral, for example, $500 for every referred client who signs. Flat fees work well when deal sizes are similar or when a percentage would be awkward to calculate.

Tiered fees. Larger rewards for larger deals or for referrers who send multiple customers, say, $250 for the first referral and $500 for each one after the fifth in a year.

Whatever you choose, write down the exact basis. "10% of revenue" is ambiguous; "10% of the net invoice amount (excluding taxes and third-party pass-through costs) for the referred customer's first 12 months" is enforceable.

Key Clauses in a Referral Agreement

1. Definition of a Qualified Referral

This is the clause that prevents the most disputes. Without a clear definition, every warm name the referrer mentions becomes a potential claim. A qualified referral should require, at minimum:

The referrer submits the prospect's name and contact details in writing (email is fine) before any contact is made.
The prospect was not already in the recipient's pipeline or database.
The recipient confirms acceptance of the referral within a set window (e.g., five business days).

Logging referrals in writing and checking them against existing contacts settles the "I sent you that lead first" argument before it starts.

2. The Referral Fee and How It's Calculated

State the percentage or flat amount, the exact base it applies to, and whether it's one-time or recurring. Specify what's excluded from the calculation: taxes, shipping, refunds, discounts, and any third-party costs you pass through. If the fee recurs on renewals, cap the number of renewal periods so the obligation doesn't run forever.

3. Payment Trigger and Timing

Decide what event earns the fee. Paying on the introduction alone is risky; paying when the referred customer becomes a paying customer is safer. A common, defensible trigger: the fee is due once the referred customer signs an agreement and pays their first invoice. Then state the payment window (for example, within 30 days of the recipient receiving that first payment) and the payment method.

4. Term and Attribution Window

Set how long the agreement lasts and, critically, how long a referral stays "attributed" to the referrer. If a prospect is introduced today but doesn't buy for eight months, does the referrer still earn the fee? Most agreements set an attribution window, often 6 to 12 months from the introduction, after which an unclosed referral expires.

5. Exclusivity (or the Lack of It)

Most referral agreements are non-exclusive: the referrer can refer to your competitors, and you can accept referrals from anyone. If you want exclusivity in either direction, say so explicitly, and expect to pay more for it.

6. Independent Contractor Relationship

State plainly that the referrer is an independent contractor, not an employee, agent, or partner, and has no authority to bind the business, set prices, or make representations on its behalf. This protects you if the referrer overpromises to a prospect.

7. Compliance and Disclosure

Add a clause requiring both parties to comply with applicable laws, including any required disclosure that a referral relationship exists. In regulated fields (real estate, finance, healthcare, law), add language confirming the arrangement is permitted and that any licensing requirements are met.

8. Confidentiality and Non-Circumvention

If the referrer will learn customer information, add a confidentiality clause. A non-circumvention clause can also prevent the referrer from going around you to deal with a customer directly, though keep it reasonable, as overbroad versions are hard to enforce.

9. Termination and Survival

Explain how either party can end the agreement (usually with written notice) and confirm that fees already earned on referrals made before termination still get paid. Without a survival clause, a party could terminate the day before a big deal closes to dodge the fee.

10. Governing Law and Dispute Resolution

Name the state whose law applies and where disputes are resolved. For smaller arrangements, a mediation-or-arbitration clause can keep a fee dispute out of court.

How to Write a Referral Agreement: Step-by-Step

Step 1: Name the parties. Use full legal names, and the state of formation for companies. Identify who is the referrer and who is the recipient.

Step 2: Define a qualified referral. Spell out the written-submission and not-already-a-prospect requirements. This single step prevents most fee fights.

Step 3: Set the fee. Choose percentage, flat, or tiered. Write the exact calculation base and what's excluded.

Step 4: Set the payment trigger and window. Tie the fee to a concrete event (signed contract plus first payment) and state how many days you have to pay after it.

Step 5: Set the term and attribution window. Decide how long referrals stay credited to the referrer.

Step 6: Add the protective clauses. Independent-contractor status, non-exclusivity, compliance, confidentiality, and termination with a survival clause for earned fees.

Step 7: Add governing law and signatures. Both parties sign. For a company, the signer must have authority to bind it.

Common Mistakes That Cause Referral Disputes

Leaving it verbal. A handshake referral deal works right up until real money is involved. Then the percentage, the trigger, and the term are all suddenly "remembered" differently. Put it in writing every time.

No definition of a qualified referral. If any name the referrer mentions counts, you'll pay for prospects who were already yours, or argue about who found whom. Require written submission and a pipeline check.

Paying on the introduction, not the sale. Fees due "on referral" mean you pay even when the deal collapses. Tie payment to a paying customer.

Forgetting the attribution window. Without one, a referrer can claim a fee on a deal that closes years later through unrelated efforts. Six to twelve months is typical.

Ignoring industry rules. Real estate, finance, healthcare, and legal services restrict or ban referral fees. Confirm yours are legal, and disclosed, before signing.

Open-ended recurring fees. Paying a percentage on every renewal forever erodes margins. Cap the recurring periods.

Confusing a referral with a commission. If the referrer keeps selling and managing the account, they're acting as a sales rep, and you may owe ongoing commission, not a one-time fee. Match the contract to the actual role. A consulting agreement may even fit better if the relationship is broader than introductions.

When to Use a Referral Agreement

B2B partnerships where a complementary business sends you qualified leads
Past clients or contacts who regularly recommend you and deserve to be rewarded
Professional networks (accountants, consultants, agencies) that trade introductions
Formalizing an informal arrangement that has grown large enough to need clear terms
Any introduction worth enough money that a misunderstanding about the fee would damage the relationship

Related guides

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A referral agreement is short, but every clause has to be precise: the fee basis, the qualified-referral definition, and the payment trigger are where disputes live. Contractable generates a tailored referral agreement in seconds, with the right fee structure, attribution window, and protective clauses for your situation. No lawyers or legal jargon required. Just answer a few questions and download a ready-to-sign document.