Private ordering is the practice of using contracts and similar agreements to set your own binding rules, replacing the default outcomes a court or statute would otherwise impose. Instead of accepting whatever a legislature decided should happen when a marriage ends, a partnership breaks up, or an employee leaves, the people involved negotiate their own terms in advance and commit them to writing. The idea rests on freedom of contract: the parties closest to a situation are usually in a better position than a lawmaker to decide what works. That freedom is broad, but it stops at several hard legal lines, and knowing where it stops matters as much as knowing what it allows.
What Makes a Private Agreement Binding
Every enforceable private agreement rests on two elements. The first is mutual assent, meaning both parties understand they are entering an agreement and freely choose to be bound.1Thomson Reuters. The Essential Elements of a Contract The second is consideration: an exchange of value, whether that is money, a service, a promise to act, or a promise not to act. A one-sided promise with nothing given in return is generally unenforceable.2Cornell Law Institute. Consideration
The practical work of private ordering is identifying which default rules you want to displace and then writing new terms specific enough that a court could enforce them. A partnership might override the default equal split of profits. A couple might agree that certain property stays separate rather than becoming marital. In each case, the parties are substituting their own arrangement for what the law would otherwise dictate.
When the Agreement Must Be in Writing
Not every private agreement needs to be written down, but several important categories do. Under the statute of frauds, these are unenforceable without a signed writing:
- Contracts involving the sale, mortgage, or lease of real estate.
- Agreements that cannot possibly be completed within one year of being made.
- Promises to pay someone else’s debt if that person defaults.
- Agreements made in consideration of marriage, including prenuptial agreements.
- Sales of goods worth $500 or more under the Uniform Commercial Code.3Cornell Law Institute. UCC 2-201 Formal Requirements Statute of Frauds
The writing does not have to be a formal document. A signed letter, email thread, or series of text messages can satisfy the requirement if the essential terms and the parties are clear. Relying on informal records is risky, though. A signed document with specific terms gives both sides far better protection if the deal later unravels.
Where Private Ordering Shows Up
The concept sounds abstract, but most people encounter it in three familiar contexts: family relationships, business ownership, and employment.
Family Agreements
Couples use private ordering to decide financial questions that would otherwise land in front of a judge applying default marital property rules. Prenuptial agreements signed before marriage and postnuptial agreements signed during marriage are the main tools, covering property division, alimony, and related matters.
For these agreements to hold up, courts across most states apply a common set of requirements drawn from the Uniform Premarital Agreement Act, which roughly half the states have adopted in some form. The agreement must be in writing and signed by both parties. It must be entered voluntarily. Each party must receive fair disclosure of the other’s finances, or must knowingly waive that disclosure in writing. And it cannot be unconscionable at the time of signing. Courts can also override a spousal support waiver if enforcing it would leave one spouse eligible for public assistance.
Full financial disclosure is the step people most often skip and most often regret. Hiding assets or undervaluing property gives the other side a powerful argument to void the whole agreement years later. Independent counsel for each party is strongly advisable even where it is not technically required. A prenup signed the day before the wedding, with no independent advice and incomplete finances, is the textbook recipe for getting thrown out.
Business Agreements
Business owners rely on private ordering constantly. Every operating agreement, partnership agreement, and shareholder agreement displaces default state rules with negotiated alternatives. Without these documents, the defaults fill the gaps, and the defaults rarely match what the founders actually intended.
An LLC operating agreement is the governing contract among members of a limited liability company. It sets out how the business is managed, how revenues are shared, and how assets are used.4Cornell Law Institute. Operating Agreement These are internal documents that bind the members once signed.5U.S. Small Business Administration. Basic Information About Operating Agreements They are not filed with any state agency; they are kept with the business’s records. Shareholder agreements do similar work for corporations, governing voting rights, transfer restrictions, and what happens when an owner wants out. Buy-sell provisions matter especially because they establish a protocol and valuation method for ownership changes; without one, a departing owner can create an expensive stalemate.
Partnership agreements take private ordering further by letting partners divide income, losses, and deductions in ways that differ from ownership percentages. A partner holding 30% of the equity could receive 50% of the depreciation deductions. The IRS imposes a key constraint: these special allocations must have substantial economic effect. If they do not, the IRS reallocates the income or loss according to each partner’s actual interest in the partnership, regardless of what the agreement says.6Office of the Law Revision Counsel. 26 USC 704 – Partners Distributive Share In plain terms, the allocation must carry real financial consequences for the partner receiving it, not just tax consequences.
Employment Agreements
Employment contracts are the most contested area of private ordering because the bargaining power is rarely equal. Three types of provisions attract the most legal scrutiny.
Non-compete clauses restrict an employee’s ability to work for a competitor after leaving. Enforceability varies dramatically by state. Some states enforce reasonable non-competes; a few ban them almost entirely. In April 2024, the Federal Trade Commission issued a rule that would have banned most non-competes nationwide as an unfair method of competition.7Federal Trade Commission. FTC Announces Rule Banning Noncompetes That rule never took effect. Federal courts in Texas and Florida blocked it, and as of early 2025 the federal government halted its appeals, leaving the ban effectively dead. Non-compete enforceability remains governed by state law.
Mandatory arbitration clauses push disputes out of court and into private arbitration. The Federal Arbitration Act makes these agreements valid and enforceable in contracts involving commerce, subject to the same defenses that apply to any contract.8Office of the Law Revision Counsel. 9 USC 2 – Validity, Irrevocability, and Enforcement of Agreements to Arbitrate There is one major federal carve-out. The Ending Forced Arbitration of Sexual Assault and Sexual Harassment Act, signed into law in 2022, lets anyone alleging sexual harassment or sexual assault void a predispute arbitration agreement for that claim. The choice belongs to the person making the allegation, and courts rather than arbitrators decide whether the law applies.9Office of the Law Revision Counsel. 9 US Code 402 – No Validity or Enforceability Employment arbitration agreements also cannot stop workers from filing charges with agencies like the EEOC or NLRB.
Severance agreements frequently include non-disparagement and confidentiality clauses. The National Labor Relations Board’s 2023 decision in McLaren Macomb drew a hard line. The Board held that merely offering a severance agreement with broad non-disparagement or confidentiality clauses violates the National Labor Relations Act because it pressures employees to give up their right to discuss working conditions and organize.10National Labor Relations Board. Board Rules That Employers May Not Offer Severance Agreements Requiring Employees to Broadly Waive Labor Law Rights Narrower provisions can still survive. A confidentiality clause limited to trade secrets is generally fine. A non-disparagement clause limited to knowingly false statements is likely enforceable. A blanket prohibition on saying anything negative, or a clause barring an employee from talking to a union, the press, or the NLRB, will not hold up. The Board also made clear that these are public rights the employee cannot waive, even by request.11Office of the Law Revision Counsel. 29 USC 157 – Rights of Employees
What Private Agreements Cannot Do
Freedom to set your own terms is broad. It is not unlimited. The law draws several lines no private agreement can cross, no matter how willingly both sides signed.
Unconscionability
A court can refuse to enforce any contract or clause it finds unconscionable at the time the agreement was made. The court can strike just the offending clause, enforce the rest without it, or throw out the entire agreement. Before deciding, the court gives both sides a chance to present evidence about the commercial context and the clause’s real-world effect.12Cornell Law Institute. UCC 2-302 Unconscionable Contract or Clause
Courts look at two dimensions. Procedural unconscionability asks how the agreement was formed: was there a real chance to negotiate, or was it take-it-or-leave-it fine print? Substantive unconscionability asks whether the terms themselves are so one-sided that enforcing them would be unreasonable. Most courts require some showing on both before striking a clause, though extreme facts on either side can sometimes be enough alone.
Public Policy and Mandatory Rules
Some obligations exist to protect third parties or society, and private agreements cannot override them. The clearest example is child support. Parents cannot use a prenup, a divorce settlement, or any other private arrangement to waive or cap child support. Courts treat the right to support as belonging to the child, not to the parents, so the parents have no authority to bargain it away. Agreements that involve illegal activity or violate public policy, including price fixing, tax evasion, or anticompetitive restraints, are unenforceable regardless of how carefully they were drafted.
Fiduciary Duty Floors
How far fiduciary duties can be modified through private agreements depends on the entity. Corporate directors and officers owe duties of loyalty and care to shareholders that generally cannot be eliminated. LLC members operate under more flexible rules; some states allow operating agreements to modify or even eliminate fiduciary duties among members, provided the agreement does not eliminate the implied duty of good faith and fair dealing. Partnership law falls in between, permitting some modification of the duty of loyalty but not its complete removal. Anyone forming an entity should understand how much their chosen structure actually allows private ordering to reshape these duties.
How These Agreements Get Enforced
A well-drafted agreement is only as good as the mechanism for enforcing it. The path depends on the type of agreement and what the parties specified in the document itself.
Divorce settlements and custody agreements typically require a judge’s approval before they become legally binding. The parties negotiate privately, but the agreement must be submitted to the court, reviewed for fairness, and incorporated into a final order. A judge can reject provisions that appear unconscionable or that adversely affect children’s interests, even when both spouses agreed. Until that approval happens, the private agreement is not yet enforceable as a court order.
Commercial and employment agreements often designate arbitration as the exclusive dispute resolution method. The complaining party files a demand with the agreed-upon arbitration provider, such as the American Arbitration Association, along with a copy of the arbitration agreement and the filing fee.13American Arbitration Association. AAA File a Case Arbitration tends to be faster than litigation, but awards are very difficult to appeal, discovery is more limited, and proceedings are usually confidential. Those tradeoffs cut both ways depending on your position in the dispute.
Where there is no arbitration clause, the aggrieved party enforces the agreement by filing a breach of contract lawsuit. Most private agreements include a notice provision requiring written notice of the breach and a cure period before litigation. Skipping that step can undermine the claim. Remedies typically include money damages, and in some cases a court order compelling performance. Agreements that include attorney’s fees provisions shift the cost of enforcement to the losing side, which discourages frivolous breaches and makes enforcement economically viable even for smaller disputes.