Zillow Referral Fees: Where Does Your Real Estate Commission Really Go?

Updated October 26, 2026.

Imagine finding out your real estate agent paid Zillow $4,000 out of a $10,000 commission for introducing you as a client.

You didn't hire Zillow to represent you. You hired a real estate agent. And you may never have known how much money was changing hands behind that introduction.

That's not some hypothetical business model. Zillow's own Preferred program says participating agents pay referral fees ranging from 15% to 40% of their commission when they close a transaction with a Zillow connection.

And now there are federal lawsuits accusing Zillow of going further, allegedly pressuring agents to steer homebuyers toward Zillow Home Loans to maintain access to those consumer referrals.

On October 15, 2026, U.S. Senators Elizabeth Warren and Cory Booker asked the Federal Trade Commission to investigate potentially deceptive and anticompetitive practices involving online agent referrals, mortgage steering, and private listings.

So here's what I want homeowners and buyers around Frankfort, Mokena, New Lenox, Tinley Park, Orland Park, and the surrounding suburbs to understand.

When you find an agent through a real estate website, you should know who is making money from that connection and whether it could influence the advice you're receiving.

How Zillow Makes Money When You Connect With a Real Estate Agent

You've probably seen the buttons while browsing homes online.

Contact Agent. Request a Tour. Connect With an Agent.

Simple enough, right?

Except the person you're connected with might not be the property's listing agent. You could be connected with an agent participating in Zillow's paid lead-generation or referral system.

Zillow has different arrangements with real estate professionals. Some agents purchase advertising through its Premier Agent business. Others participate in Zillow Preferred, formerly known as Flex, which generally operates on a pay-when-you-close model.

Under Zillow Preferred, agents don't pay an upfront fee for each introduction. Instead, when an eligible transaction closes, a referral fee becomes due.

That means a potentially substantial part of the commission generated by a real estate transaction goes to the platform that supplied the client.

What Does a 40% Zillow Referral Fee Actually Cost?

Let's put some real numbers behind this.

Say you're selling a home or buying a property, and the commission earned by one agent's side of the transaction is $10,000.

Here's what different referral fee percentages would mean.

Example only. The remaining commission is before any additional brokerage splits, team compensation, business expenses, or taxes. The Zillow fee comes out of the agent-side commission and is not automatically an additional charge on top of the consumer's agreed commission.

Now here's the question I'd ask if I were the consumer.

If you're paying thousands of dollars in real estate commissions, wouldn't you want to know how much is going toward representing you, marketing your property, and negotiating your transaction, and how much is going to a third-party referral platform?

And if an agent knows a large portion of the commission is going to Zillow, does that affect how much they're willing to negotiate their compensation?

It doesn't establish that every consumer pays more. But it's certainly a question worth asking.

The Zillow Home Loans Steering Allegations

The referral fees are only part of this story.

Two federal lawsuits have raised a more serious concern: whether Zillow uses its influence over agent referrals to encourage or pressure agents to direct homebuyers toward Zillow's own mortgage company.

Think about the potential conflict.

You connect with an agent to purchase a home. You're expecting that agent to help you find the right property, negotiate the purchase, and look out for your interests.

But what if the agent's access to future clients depends partly on how many people they connect with a particular mortgage company?

That's at the center of the allegations.

Zillow's Published Mortgage Preapproval Target

One especially interesting detail isn't buried in a lawsuit. It's published by Zillow itself.

The target is calculated using approximately 10% of a team's eligible Zillow connections that reach a specified customer-contact stage during the preceding 90 days. Teams are expected to achieve 100% of that calculated target over three months.

In other words, Zillow is tracking how many customers become preapproved through Zillow Home Loans as part of the performance standards for its participating teams.

Having a performance target doesn't, by itself, establish unlawful conduct. But it raises an obvious question.

Should a real estate agent's performance in a referral program be measured partly by how many customers use the platform's affiliated mortgage lender?

Especially when the buyer is relying on that agent for independent guidance.

What the Federal Lawsuits Allege

In Taylor v. Zillow, consumers alleged that Zillow's referral arrangements and mortgage-related incentives contributed to steering homebuyers toward Zillow Home Loans, potentially exposing them to less competitive financing or other financial harm.

The earlier complaint was dismissed in July 2026, with permission to amend. Plaintiffs filed another amended complaint in August, and Zillow moved to dismiss it again in September. The latest motion's disposition had not been independently confirmed as of this article's update.

A separate lawsuit, Dupuis v. Zillow Group, was brought by real estate agents challenging Zillow's referral and business practices under antitrust and other laws.

That case alleges Zillow used its influence over consumer connections to pressure agents to promote Zillow Home Loans and participate in other Zillow-related services, with potential consequences for agents who did not comply.

On September 28, 2026, a federal judge denied Zillow's motion to dismiss the Dupuis case, allowing the claims to move forward. Zillow subsequently sought reconsideration of that decision.

That is not a final verdict against Zillow. The allegations remain contested. But the agents' lawsuit cleared an important early hurdle.

And the allegations involve something that should matter to every homebuyer: whether the advice you're getting is influenced by a company's control over the agent's future business.

Original case documents: Dupuis lawsuit, amended complaint, and September 28 court order.

What the People Challenging Zillow Are Saying

Some of the strongest concerns come directly from the people challenging these business arrangements and from the federal court reviewing them.

"Have no choice but to participate in Zillow's referral ecosystem."

That's how the September 28 court ruling described part of the agents' plausible allegations concerning Zillow's market influence. The court was deciding whether the claims could proceed, not whether the allegations had been proven.

The amended Dupuis complaint also alleges that Zillow punished or removed agents from referral opportunities when they failed to produce sufficient mortgage-related business.

Those allegations raise a larger issue than any one agent's commission.

If agents depend on a single online platform for a substantial share of their business, how much pressure can that platform place on them?

And what happens when the platform also operates a mortgage company?

Two U.S. Senators Want the FTC to Investigate

On October 15, 2026, Senators Elizabeth Warren and Cory Booker sent a letter to Federal Trade Commission Chair Andrew Ferguson asking the agency to investigate practices in the online homebuying marketplace.

The senators raised three areas of concern: commission-sharing arrangements between platforms and agents, steering buyers toward affiliated mortgage lenders, and private listing practices that could restrict competition.

The letter does not name Zillow in its main text, but its supporting references include reporting about Zillow's referral and mortgage practices.

Here's one passage from the senators' official announcement:

"We urge you to now investigate anticompetitive and deceptive practices in the home-buying market."

The senators argue that some online real estate arrangements can leave buyers unaware of financial incentives that may increase costs or restrict their choices.

There's an important distinction here: the letter is a request for an FTC investigation. It does not establish that the FTC has opened or completed a new investigation into Zillow's agent referral or mortgage steering practices.

But it shows that concerns about these arrangements have reached Congress.

Zillow Has Faced Other Federal and Legal Scrutiny

The referral and mortgage lawsuits are not Zillow's only legal controversy. In September 2025, the FTC and five states sued Zillow and Redfin over a separate agreement involving online rental advertising. Regulators alleged that Zillow paid Redfin $100 million under an arrangement that suppressed competition in multifamily rental advertising. In August 2026, the FTC announced a proposed resolution intended to restore competition. Zillow has also been involved in litigation and disputes involving real estate listing access and private listings. These are separate legal matters, not findings that Zillow's residential agent referral fees violate the law, but they demonstrate the range of competition concerns surrounding major real estate platforms.

Read the FTC's Zillow/Redfin rental advertising case.

Does an Illinois Real Estate Agent Have to Disclose a Zillow Referral Fee?

This is where things get particularly interesting for Illinois buyers and sellers.

Illinois law requires real estate licensees to disclose certain compensation arrangements to their clients.

Under 225 ILCS 454/10-10, licensees must disclose their sponsoring broker's compensation policy and sources of transaction-related compensation they receive from third parties.

But there's an important difference between receiving compensation from a third party and paying part of an earned commission to a referral source.

Illinois law expressly addresses certain payments received by agents or brokerages. The provisions reviewed do not establish a blanket requirement to disclose the exact percentage an agent pays another brokerage for an ordinary referral.

That doesn't mean every arrangement is automatically exempt from disclosure or that other agency duties and conflict-of-interest rules are irrelevant.

It means consumers shouldn't assume the amount paid to Zillow will necessarily appear in their brokerage agreement or closing documents.

And that's precisely why I think buyers and sellers should ask.

You don't have to be an attorney or a real estate professional to ask where the money is going.

And there is nothing unreasonable about wanting a straight answer.

Could Referral Fees and Mortgage Steering Make Buying a Home More Expensive?

Potentially. But there are two different issues here.

The first is the real estate commission.

When an agent owes a substantial referral fee, that leaves less commission after the transaction closes. Whether that results in a higher negotiated commission for a particular consumer depends on the transaction. A higher consumer cost is not automatic.

But if 40% of the commission is committed to a referral source, it's fair to ask whether that leaves the agent less willing to negotiate the fee.

The second issue is mortgage financing, and that can be much more expensive over time.

Even a relatively small difference in mortgage rates can add up over a 30-year loan.

For example, on a $350,000 mortgage, a 6.5% fixed interest rate compared with 6.75% would produce a difference of roughly $58 per month in principal and interest, or about $21,000 over 30 years if the loan remains outstanding for the entire term.

That's an illustration, not evidence that Zillow Home Loans charges those particular rates or is more expensive than another lender.

But it shows why shopping around matters.

No real estate agent or referral platform should make you feel that you're obligated to use one particular lender simply because they made the introduction.

What Buyers and Sellers Should Ask Before Choosing an Agent

I've worked with buyers and sellers in the southwest suburbs for years, and one thing I've learned is that people can enter a real estate relationship without fully understanding what they're agreeing to.

It happens especially easily when someone is browsing properties online and wants to see a home quickly.

They click a button, talk to an agent, schedule a showing, and before long they're being asked to sign a representation agreement.

That agreement matters.

Before you sign, take a few minutes to understand who you're hiring and what you're committing to.

In Illinois, buyers working with agents subject to the applicable written-agreement requirements generally need to sign a buyer representation agreement before touring a home.

That makes it especially important to understand the relationship before the first showing, not after you've toured several properties.

And for sellers, don't focus exclusively on the advertised commission percentage. Ask what's included, how your home will be marketed, what compensation arrangements may apply, and who could be receiving part of that money.

A good agent should be able to explain the agreement without turning the conversation into a guessing game.

The Bottom Line

Zillow has built a business in which some real estate agents pay between 15% and 40% of their commissions to receive consumer referrals.

The company also has a mortgage business, and its published Preferred program standards track Zillow Home Loans preapprovals.

Federal lawsuits are challenging whether Zillow uses those relationships in ways that pressure agents and potentially interfere with consumer choice. At least one major agent lawsuit has survived an initial dismissal attempt, and two U.S. senators have asked the FTC to examine similar practices across the industry.

None of that means every Zillow referral is improper or every participating agent is doing something wrong.

But here's where I stand.

If you're paying someone thousands of dollars to represent you in one of the largest financial transactions of your life, you should understand the financial relationships behind that representation.

Where is the commission going? Who benefits from the referral? Is your agent being influenced to recommend a particular mortgage company?

And most importantly, are you choosing the agent and lender that are best for you, or simply accepting the ones an online platform placed in front of you?

Those are reasonable questions, and consumers deserve reasonable answers.

If you're buying or selling in Frankfort, Mokena, New Lenox, Tinley Park, Orland Park, or anywhere around the southwest suburbs and have questions about agent representation, referral fees, or commissions, feel free to reach out.