Lifestyle Clauses Becoming More Popular in Prenuptial Agreements

 Posted on April 15, 2026 in Prenuptial Agreements

Premarital agreements have been around for a long time, but which couples use them and how has changed considerably. Many people think of a prenup as a document about what happens to money and other assets in the event of a divorce. Those things still belong in any solid prenuptial agreement.

However, in 2026, more and more couples are going a step further and including what are called lifestyle clauses. A Batavia family law lawyer can help you understand how these provisions work and if it’s worth it to include them.

What Does a Standard Premarital Agreement Cover in Illinois?

Younger couples are consistently making up a growing portion of prenup-signers. Along with rising prenup rates and higher average age at marriage, attorneys are seeing more clients ask specifically about clauses that govern behavior during the marriage, not just the division of property after it ends.

Before getting into lifestyle clauses, it helps to understand what premarital agreements usually address. In Illinois, a prenup is a legally binding contract entered into before marriage. Under the Illinois Uniform Premarital Agreement Act (750 ILCS 10/1 et seq.), couples can use these agreements to set terms for a wide range of financial matters.

Common provisions include:

• Real estate owned before the marriage, especially if a property will become the marital home

• Business ownership, which prevents a spouse from claiming a share of a business they had no part in building

• Bank accounts, retirement accounts, and high-value personal property like antiques or collections

• Whether spousal support will be paid in the event of divorce, and under what conditions

These provisions give both parties clarity and reduce the chance of long disputes if the marriage ends.

What Are Lifestyle Clauses in a Prenuptial Agreement and What Can They Cover?

Lifestyle clauses are provisions that address how the couple will behave during the marriage. They've been around for decades in celebrity divorces and high-asset marriages. Recently, they've gone increasingly mainstream.

Some of the more common lifestyle provisions couples are requesting today include:

• Infidelity clauses that specify a financial penalty if one spouse has an affair

• Social media clauses, which restrict what either party can post publicly about the other or the relationship

• Provisions about whether the couple will have children, and if so, details about schooling or religious upbringing

• Clauses specifying how much time a spouse can spend with friends or extended family

• Weight or fitness expectations

• Agreements about how frequently the couple will be intimate

• Substance use provisions that tie financial consequences to documented issues, like a DUI

The motivations behind these clauses vary widely. Some couples want financial accountability for serious breaches of trust like infidelity. Others use lifestyle clauses to get expectations on paper that could otherwise become major points of conflict.

Will Illinois Courts Enforce Lifestyle Clauses in a Premarital Agreement?

Having a lifestyle clause in your prenup doesn't automatically mean a court will enforce it. Illinois courts review prenuptial agreements carefully, and they won't uphold anything illegal, unconscionable, or impossible to measure in any meaningful way.

Infidelity clauses, for example, require proving an affair occurred and then assigning it a specific dollar value. Courts may find it difficult to apply fairly. Appearance-based clauses, such as those tied to weight gain, are particularly vulnerable to challenge on public policy grounds. Provisions about how often a couple is intimate raise obvious privacy concerns.

Things That Make a Lifestyle Clause More Likely To Hold Up in Court

Most lifestyle clauses, especially those involving personal behavior, are unlikely to be enforced. Courts tend to look more favorably on provisions that are:

• Specific and measurable rather than vague or subjective

• Connected to a concrete, documented event rather than opinion

• Agreed to voluntarily, with both parties represented by their own attorneys

A clause that adds consequences to a documented conviction, for example, is easier for a court to apply than one based on disputed behavior. A social media clause with a clear definition of unacceptable content is more enforceable than a "be respectful" provision.

How your prenuptial agreement is drafted is very important. For this reason, at the very least, you should get a lawyer to look things over before you sign anything.

Should I Add Lifestyle Clauses to My Illinois Premarital Agreement?

Not every couple needs lifestyle clauses. If you are considering them, you need to make sure they’re realistic and enforceable. However, if you're entering a marriage with specific concerns, whether about finances or behavior that has caused problems before, a prenuptial agreement is a fair place to address them.

If you’re interested in lifestyle clauses, make sure the document is drafted carefully, reviewed by a legal professional (ideally, you and your partner should each have a lawyer look it over), and that both parties fully understand what they're signing. Anything else is liable to be thrown out if challenged later.

Call a Kane County, IL Premarital Agreement Lawyer Today

If you're considering a prenuptial agreement, go into it with the right guidance. Our Batavia family law attorney at the Law Office of Van A. Larson has experience with prenups and can advise you on what makes sense for yours. Call us at 630-879-9090 today to schedule a free consultation.