Start with the rule, not the exception. The Fair Housing Act makes it unlawful to refuse to sell or rent, to refuse to negotiate, or otherwise to make a dwelling unavailable because of race, color, religion, sex, familial status, national origin or disability, and to advertise in ways that indicate a preference or limitation on those grounds. The exemption discussed below is a narrow carve-out from that general prohibition, available in defined circumstances, and it is not a license to discriminate.
What the exemption actually says, and its conditions. Section 3603(b) provides that nothing in section 3604 "(other than subsection (c))" applies to "any single-family house sold or rented by an owner", subject to a stack of provisos: the private individual owner must not own more than three such single-family houses at any one time; where the owner did not reside in the house at the time of sale and was not its most recent resident, the exemption applies only to one such sale in any twenty-four month period; the owner must not own any interest in, or have reserved on their behalf, title to or a right to the proceeds from more than three such houses at one time; and, after 31 December 1969, the sale is excepted only if made without using a broker's, agent's or salesperson's sales facilities or services "in any manner", and without publishing, posting or mailing any advertisement in violation of section 3604(c). The same proviso then preserves professional help expressly: nothing in it "shall prohibit the use of attorneys, escrow agents, abstractors, title companies, and other such professional assistance as necessary to perfect or transfer the title."
Three things the exemption does not do, and they are the reason this is worth reading carefully. First, it is drafted as an exemption from section 3604 "other than subsection (c)", so discriminatory advertising remains unlawful for a seller who is otherwise within it. Second, section 3617 separately makes it unlawful "to coerce, intimidate, threaten, or interfere with any person in the exercise or enjoyment of" rights granted by sections 3603 to 3606, and it carries no equivalent carve-out on its face. Third, and most importantly, a different and older statute is untouched by it. Under 42 U.S.C. 1982, "[a]ll citizens of the United States shall have the same right, in every State and Territory, as is enjoyed by white citizens thereof to inherit, purchase, lease, sell, hold, and convey real and personal property", and in Jones v. Alfred H. Mayer Co., 392 U.S. 409 (1968) the Supreme Court held "that § 1982 bars all racial discrimination, private as well as public, in the sale or rental of property." The Court was careful about the limits of its own holding, noting that section 1982 "is not a comprehensive open housing law": it reaches racial discrimination rather than the full list of characteristics the Fair Housing Act protects. State and local fair housing laws are also frequently broader than the federal floor, and they are not narrowed by a federal exemption.
The flat-fee listing question is genuinely open on the statute's words. A seller who pays a brokerage a flat fee purely to enter the property into a multiple listing service, while doing everything else themselves, is using a service supplied by a real estate broker. The exemption is conditioned on the sale being made "without the use in any manner" of a broker's sales facilities or services, and "in any manner" is broad language. This page does not resolve the point, and a seller relying on the exemption while using such a service is relying on a reading the text does not obviously support. The practical answer for almost every seller is simpler: comply with the fair housing rules regardless, because the exemption is narrow, contested at its edges, and irrelevant to state law.
The other duties do not travel with the broker. Federal lead-based paint disclosure obligations run to the seller, not to the agent, and they apply to target housing, meaning housing built before 1978 with limited exceptions. The seller must disclose known lead-based paint and hazards, provide available records and a pamphlet, attach the prescribed warning statement to the contract, and allow the purchaser an evaluation period before the purchaser is obligated (24 CFR 35.88, 35.90, 35.92). State-law seller disclosure requirements sit on top of that and vary widely. An owner selling alone has taken on the compliance work along with the marketing.
What August 2024 changed about the comparison. Under the National Association of Realtors antitrust settlement, a seller is no longer obliged to offer compensation to the buyer's side through a multiple listing service, and any such offer must be disclosed to and approved by the seller in advance. The Eighth Circuit affirmed approval of that settlement on 19 August 2026. The consequence for an owner selling alone is that the buyer-side arrangement is now an explicit negotiation rather than a market default, which is a change in what the seller is comparing against. What the seller pays, and to whom, is the real estate agent commission page's subject, and this page publishes no rate.